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package Config;
use Exporter ();
@EXPORT = qw(%Config);
@EXPORT_OK = qw(myconfig config_sh config_vars);
# Define our own import method to avoid pulling in the full Exporter:
sub import {
my $pkg = shift;
@_ = @EXPORT unless @_;
my @func = grep {$_ ne '%Config'} @_;
local $Exporter::ExportLevel = 1;
Exporter::import('Config', @func) if @func;
return if @func == @_;
my $callpkg = caller(0);
*{"$callpkg\::Config"} = \%Config;
}
die "Perl lib version (v5.6.0) doesn't match executable version ($])"
unless $^V;
$^V eq v5.6.0
or die "Perl lib version (v5.6.0) doesn't match executable version (" .
(sprintf "v%vd",$^V) . ")";
# This file was created by configpm when Perl was built. Any changes
# made to this file will be lost the next time perl is built.
##
## This file was produced by running the Configure script. It holds all the
## definitions figured out by Configure. Should you modify one of these values,
## do not forget to propagate your changes by running "Configure -der". You may
## instead choose to run each of the .SH files by yourself, or "Configure -S".
##
#
## Package name : perl5
## Source directory : /private/var/tmp/perl/perl-17.1.obj~34
## Configuration time: Sun Sep 2 17:20:42 PDT 2001
## Configured by : root
## Target system : darwin law 1.4 darwin kernel version 1.3: sun jul 22 16:20:35 pdt 2001; aramesh:buildobjrelease_ppc power macintosh powerpc
#
## Configure command line arguments.
my $config_sh = <<'!END!';
archlibexp='/System/Library/Perl/darwin'
archname='darwin'
cc='cc'
ccflags='-g -pipe -pipe -fno-common -no-cpp-precomp -flat_namespace -DHAS_TELLDIR_PROTOTYPE -fno-strict-aliasing'
cppflags='-g -pipe -pipe -fno-common -no-cpp-precomp -flat_namespace -DHAS_TELLDIR_PROTOTYPE -fno-strict-aliasing'
dlsrc='dl_dyld.xs'
dynamic_ext='B ByteLoader DB_File Data/Dumper Devel/DProf Devel/Peek Fcntl File/Glob IO IPC/SysV NDBM_File Opcode POSIX SDBM_File Socket Sys/Hostname Sys/Syslog attrs re'
extensions='B ByteLoader DB_File Data/Dumper Devel/DProf Devel/Peek Fcntl File/Glob IO IPC/SysV NDBM_File Opcode POSIX SDBM_File Socket Sys/Hostname Sys/Syslog attrs re Errno'
installarchlib='/System/Library/Perl/darwin'
installprivlib='/System/Library/Perl'
libpth='/usr/lib'
libs='-lm -lc'
osname='darwin'
osvers='1.4'
prefix='/usr'
privlibexp='/System/Library/Perl'
sharpbang='#!'
shsharp='true'
sig_name='ZERO HUP INT QUIT ILL TRAP ABRT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM URG STOP TSTP CONT CHLD TTIN TTOU IO XCPU XFSZ VTALRM PROF WINCH INFO USR1 USR2 IOT '
sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 6 '
so='dylib'
startsh='#!/bin/sh'
static_ext=' '
Author=''
CONFIG='true'
CONFIGDOTSH='true'
Date='$Date'
Header=''
Id='$Id'
Locker=''
Log='$Log'
Mcc='Mcc'
PATCHLEVEL='6'
PERL_API_REVISION='5'
PERL_API_SUBVERSION='0'
PERL_API_VERSION='5'
PERL_REVISION='5'
PERL_SUBVERSION='0'
PERL_VERSION='6'
RCSfile='$RCSfile'
Revision='$Revision'
SUBVERSION='0'
Source=''
State=''
_a='.a'
_exe=''
_o='.o'
afs='false'
alignbytes='8'
ansi2knr=''
aphostname='/bin/hostname'
api_revision='5'
api_subversion='0'
api_version='5'
api_versionstring='5.005'
ar='ar'
archlib='/System/Library/Perl/darwin'
archname64=''
archobjs=''
awk='awk'
baserev='5.0'
bash=''
bin='/usr/bin'
bincompat5005='define'
binexp='/usr/bin'
bison=''
byacc='byacc'
byteorder='0xffff'
c=''
castflags='0'
cat='cat'
cccdlflags=' '
ccdlflags=' '
ccsymbols='__APPLE_CC__=932 __APPLE__=1 __DYNAMIC__=1 __GNUC_MINOR__=95 __NATURAL_ALIGNMENT__=1 __ppc__=1'
cf_by='root'
cf_email='root@law.uucp'
cf_time='Sun Sep 2 17:20:42 PDT 2001'
charsize='1'
chgrp=''
chmod=''
chown=''
clocktype='clock_t'
comm='comm'
compress=''
config_arg0='/private/var/tmp/perl/perl-17.1.obj~34/Configure'
config_arg1='-ds'
config_arg2='-e'
config_arg3='-Dprefix=/usr'
config_arg4='-Dccflags=-g -pipe '
config_arg5='-Dldflags='
config_argc='5'
config_args='-ds -e -Dprefix=/usr -Dccflags=-g -pipe -Dldflags='
contains='grep'
cp='cp'
cpio=''
cpp='cpp'
cpp_stuff='42'
cppccsymbols='__BIG_ENDIAN__=1 __GNUC__=2 __MACH__=1 __STDC__=1'
cpplast='-'
cppminus='-'
cpprun='cc -E'
cppstdin='cc -E'
cppsymbols='[Logging for Build & Integration] Used dynamic library: /usr/lib/libSystem.B.dylib=1 [Logging for Build & Integration] Used dynamic library: /usr/lib/libSystem.B.dylib=1 BIG_ENDIAN=4321 __GNUC_MINOR__=95 LITTLE_ENDIAN=1234'
crosscompile='undef'
cryptlib=''
csh='csh'
d_Gconvert='sprintf((b),"%.*g",(n),(x))'
d_PRIEldbl='define'
d_PRIFldbl='define'
d_PRIGldbl='define'
d_PRIX64='define'
d_PRId64='define'
d_PRIeldbl='define'
d_PRIfldbl='define'
d_PRIgldbl='define'
d_PRIi64='define'
d_PRIo64='define'
d_PRIu64='define'
d_PRIx64='define'
d_access='define'
d_accessx='undef'
d_alarm='define'
d_archlib='define'
d_atolf='undef'
d_atoll='undef'
d_attribut='define'
d_bcmp='define'
d_bcopy='define'
d_bincompat5005='define'
d_bsd='define'
d_bsdgetpgrp='undef'
d_bsdsetpgrp='define'
d_bzero='define'
d_casti32='define'
d_castneg='define'
d_charvspr='undef'
d_chown='define'
d_chroot='define'
d_chsize='undef'
d_closedir='define'
d_const='define'
d_crypt='define'
d_csh='define'
d_cuserid='undef'
d_dbl_dig='define'
d_difftime='define'
d_dirnamlen='define'
d_dlerror='undef'
d_dlopen='undef'
d_dlsymun='undef'
d_dosuid='undef'
d_drand48proto='undef'
d_dup2='define'
d_eaccess='undef'
d_endgrent='define'
d_endhent='define'
d_endnent='define'
d_endpent='define'
d_endpwent='define'
d_endsent='define'
d_endspent='undef'
d_eofnblk='define'
d_eunice='undef'
d_fchmod='define'
d_fchown='define'
d_fcntl='define'
d_fd_macros='define'
d_fd_set='define'
d_fds_bits='define'
d_fgetpos='define'
d_flexfnam='define'
d_flock='define'
d_fork='define'
d_fpathconf='define'
d_fpos64_t='undef'
d_fs_data_s='undef'
d_fseeko='define'
d_fsetpos='define'
d_fstatfs='define'
d_fstatvfs='undef'
d_ftello='define'
d_ftime='undef'
d_getcwd='define'
d_getfsstat='define'
d_getgrent='define'
d_getgrps='define'
d_gethbyaddr='define'
d_gethbyname='define'
d_gethent='define'
d_gethname='define'
d_gethostprotos='define'
d_getlogin='define'
d_getmnt='undef'
d_getmntent='undef'
d_getnbyaddr='define'
d_getnbyname='define'
d_getnent='define'
d_getnetprotos='define'
d_getpbyname='define'
d_getpbynumber='define'
d_getpent='define'
d_getpgid='undef'
d_getpgrp2='undef'
d_getpgrp='define'
d_getppid='define'
d_getprior='define'
d_getprotoprotos='define'
d_getpwent='define'
d_getsbyname='define'
d_getsbyport='define'
d_getsent='define'
d_getservprotos='define'
d_getspent='undef'
d_getspnam='undef'
d_gettimeod='define'
d_gnulibc='undef'
d_grpasswd='define'
d_hasmntopt='undef'
d_htonl='define'
d_iconv='undef'
d_index='undef'
d_inetaton='define'
d_int64_t='define'
d_isascii='define'
d_killpg='define'
d_lchown='undef'
d_ldbl_dig='define'
d_link='define'
d_locconv='define'
d_lockf='undef'
d_longdbl='define'
d_longlong='define'
d_lseekproto='define'
d_lstat='define'
d_madvise='define'
d_mblen='define'
d_mbstowcs='define'
d_mbtowc='define'
d_memchr='define'
d_memcmp='define'
d_memcpy='define'
d_memmove='define'
d_memset='define'
d_mkdir='define'
d_mkdtemp='undef'
d_mkfifo='define'
d_mkstemp='define'
d_mkstemps='undef'
d_mktime='define'
d_mmap='define'
d_mprotect='define'
d_msg='undef'
d_msg_ctrunc='define'
d_msg_dontroute='define'
d_msg_oob='define'
d_msg_peek='define'
d_msg_proxy='undef'
d_msgctl='define'
d_msgget='define'
d_msgrcv='define'
d_msgsnd='define'
d_msync='define'
d_munmap='define'
d_mymalloc='undef'
d_nice='define'
d_nv_preserves_uv='define'
d_off64_t='undef'
d_old_pthread_create_joinable='undef'
d_oldpthreads='undef'
d_oldsock='undef'
d_open3='define'
d_pathconf='define'
d_pause='define'
d_phostname='undef'
d_pipe='define'
d_poll='undef'
d_portable='define'
d_pthread_yield='undef'
d_pwage='undef'
d_pwchange='define'
d_pwclass='define'
d_pwcomment='undef'
d_pwexpire='define'
d_pwgecos='define'
d_pwpasswd='define'
d_pwquota='undef'
d_qgcvt='undef'
d_quad='define'
d_readdir='define'
d_readlink='define'
d_rename='define'
d_rewinddir='define'
d_rmdir='define'
d_safebcpy='define'
d_safemcpy='define'
d_sanemcmp='define'
d_sched_yield='define'
d_scm_rights='define'
d_seekdir='define'
d_select='define'
d_sem='undef'
d_semctl='define'
d_semctl_semid_ds='undef'
d_semctl_semun='undef'
d_semget='define'
d_semop='define'
d_setegid='define'
d_seteuid='define'
d_setgrent='define'
d_setgrps='define'
d_sethent='define'
d_setlinebuf='define'
d_setlocale='define'
d_setnent='define'
d_setpent='define'
d_setpgid='define'
d_setpgrp2='undef'
d_setpgrp='define'
d_setprior='define'
d_setpwent='define'
d_setregid='define'
d_setresgid='undef'
d_setresuid='undef'
d_setreuid='define'
d_setrgid='define'
d_setruid='define'
d_setsent='define'
d_setsid='define'
d_setspent='undef'
d_setvbuf='define'
d_sfio='undef'
d_shm='define'
d_shmat='define'
d_shmatprototype='define'
d_shmctl='define'
d_shmdt='define'
d_shmget='define'
d_sigaction='define'
d_sigsetjmp='define'
d_socket='define'
d_socklen_t='undef'
d_sockpair='define'
d_sqrtl='undef'
d_statblks='define'
d_statfs_f_flags='define'
d_statfs_s='define'
d_statvfs='undef'
d_stdio_cnt_lval='undef'
d_stdio_ptr_lval='undef'
d_stdio_stream_array='define'
d_stdiobase='undef'
d_stdstdio='undef'
d_strchr='define'
d_strcoll='define'
d_strctcpy='define'
d_strerrm='strerror(e)'
d_strerror='define'
d_strtod='define'
d_strtol='define'
d_strtold='undef'
d_strtoll='undef'
d_strtoul='define'
d_strtoull='undef'
d_strtouq='define'
d_strxfrm='define'
d_suidsafe='undef'
d_symlink='define'
d_syscall='define'
d_sysconf='define'
d_sysernlst=''
d_syserrlst='define'
d_system='define'
d_tcgetpgrp='define'
d_tcsetpgrp='define'
d_telldir='define'
d_telldirproto='define'
d_time='define'
d_times='define'
d_truncate='define'
d_tzname='define'
d_umask='define'
d_uname='define'
d_union_semun='undef'
d_ustat='undef'
d_vendorarch='define'
d_vendorbin='define'
d_vendorlib='define'
d_vfork='define'
d_void_closedir='undef'
d_voidsig='define'
d_voidtty=''
d_volatile='define'
d_vprintf='define'
d_wait4='define'
d_waitpid='define'
d_wcstombs='define'
d_wctomb='define'
d_xenix='undef'
date='date'
db_hashtype='u_int32_t'
db_prefixtype='size_t'
defvoidused='15'
direntrytype='struct dirent'
dlext='bundle'
doublesize='8'
drand01='(random() / (double) ((unsigned long)1 << 31))'
eagain='EAGAIN'
ebcdic='undef'
echo='echo'
egrep='egrep'
emacs=''
eunicefix=':'
exe_ext=''
expr='expr'
fflushNULL='define'
fflushall='undef'
find=''
firstmakefile='makefile'
flex=''
fpossize='8'
fpostype='fpos_t'
freetype='void'
full_ar='/usr/bin/ar'
full_csh='/bin/csh'
full_sed='/usr/bin/sed'
gccversion='Apple devkit-based CPP 6.0'
gidformat='"lu"'
gidsign='1'
gidsize='4'
gidtype='gid_t'
glibpth='/usr/lib'
grep='grep'
groupcat='cat /etc/group'
groupstype='gid_t'
gzip='gzip'
h_fcntl='false'
h_sysfile='true'
hint='recommended'
hostcat='cat /etc/hosts'
huge=''
i16size='2'
i16type='short'
i32size='4'
i32type='long'
i64size='8'
i64type='long long'
i8size='1'
i8type='char'
i_arpainet='define'
i_bsdioctl=''
i_db='define'
i_dbm='undef'
i_dirent='define'
i_dld='undef'
i_dlfcn='undef'
i_fcntl='undef'
i_float='define'
i_gdbm='undef'
i_grp='define'
i_iconv='undef'
i_ieeefp='undef'
i_inttypes='define'
i_limits='define'
i_locale='define'
i_machcthr='undef'
i_malloc='undef'
i_math='define'
i_memory='undef'
i_mntent='undef'
i_ndbm='define'
i_netdb='define'
i_neterrno='undef'
i_netinettcp='define'
i_niin='define'
i_poll='undef'
i_pthread='define'
i_pwd='define'
i_rpcsvcdbm='undef'
i_sfio='undef'
i_sgtty='undef'
i_shadow='undef'
i_socks='undef'
i_stdarg='define'
i_stddef='define'
i_stdlib='define'
i_string='define'
i_sunmath='undef'
i_sysaccess='undef'
i_sysdir='define'
i_sysfile='define'
i_sysfilio='define'
i_sysin='undef'
i_sysioctl='define'
i_syslog='define'
i_sysmman='define'
i_sysmode='undef'
i_sysmount='define'
i_sysndir='undef'
i_sysparam='define'
i_sysresrc='define'
i_syssecrt='undef'
i_sysselct='define'
i_syssockio=''
i_sysstat='define'
i_sysstatfs='undef'
i_sysstatvfs='undef'
i_systime='define'
i_systimek='undef'
i_systimes='define'
i_systypes='define'
i_sysuio='define'
i_sysun='define'
i_sysutsname='define'
i_sysvfs='undef'
i_syswait='define'
i_termio='undef'
i_termios='define'
i_time='undef'
i_unistd='define'
i_ustat='undef'
i_utime='define'
i_values='undef'
i_varargs='undef'
i_varhdr='stdarg.h'
i_vfork='undef'
ignore_versioned_solibs=''
inc_version_list=' '
inc_version_list_init='0'
incpath=''
inews=''
installbin='/usr/bin'
installman1dir='/usr/share/man/man1'
installman3dir='/usr/share/man/man3'
installprefix='/usr'
installprefixexp='/usr'
installscript='/usr/bin'
installsitearch='/Library/Perl/darwin'
installsitebin='/usr/local/bin'
installsitelib='/Library/Perl'
installstyle='lib/perl5'
installusrbinperl='undef'
installvendorarch='/Network/Library/Perl/darwin'
installvendorbin='/usr/local/bin'
installvendorlib='/Network/Library/Perl'
intsize='4'
ivdformat='"ld"'
ivsize='4'
ivtype='long'
known_extensions='B ByteLoader DB_File Data/Dumper Devel/DProf Devel/Peek Fcntl File/Glob GDBM_File IO IPC/SysV NDBM_File ODBM_File Opcode POSIX SDBM_File Socket Sys/Hostname Sys/Syslog Thread attrs re'
ksh=''
large=''
ld='cc'
lddlflags='-bundle -flat_namespace -undefined suppress'
ldflags=''
ldlibpthname='DYLD_LIBRARY_PATH'
less='less'
lib_ext='.a'
libc='/System/Library/Frameworks/System.framework/System'
libperl='libperl.dylib'
libsdirs=' /usr/lib'
libsfiles=' libm.dylib libc.dylib'
libsfound=' /usr/lib/libm.dylib /usr/lib/libc.dylib'
libspath=' /usr/lib'
libswanted='sfio socket bind inet nsl nm ndbm gdbm dbm db malloc dl dld ld sun m c cposix posix ndir dir crypt sec ucb bsd BSD PW x iconv'
line=''
lint=''
lkflags=''
ln='ln'
lns='/bin/ln -s'
locincpth=''
loclibpth=''
longdblsize='8'
longlongsize='8'
longsize='4'
lp=''
lpr=''
ls='ls'
lseeksize='8'
lseektype='off_t'
mail=''
mailx=''
make='make'
make_set_make='#'
mallocobj=''
mallocsrc=''
malloctype='void *'
man1dir='/usr/share/man/man1'
man1direxp='/usr/share/man/man1'
man1ext='1'
man3dir='/usr/share/man/man3'
man3direxp='/usr/share/man/man3'
man3ext='3'
medium=''
mips_type=''
mkdir='mkdir'
mmaptype='caddr_t'
models='none'
modetype='mode_t'
more='more'
multiarch='define'
mv=''
myarchname='ppc-darwin'
mydomain='.uucp'
myhostname='law'
myuname='darwin law 1.4 darwin kernel version 1.3: sun jul 22 16:20:35 pdt 2001; aramesh:buildobjrelease_ppc power macintosh powerpc '
n='-n'
netdb_hlen_type='int'
netdb_host_type='const char *'
netdb_name_type='const char *'
netdb_net_type='long'
nm='nm'
nm_opt=''
nm_so_opt=''
nonxs_ext='Errno'
nroff='nroff'
nvsize='8'
nvtype='double'
o_nonblock='O_NONBLOCK'
obj_ext='.o'
old_pthread_create_joinable=''
optimize='-O3'
orderlib='false'
package='perl5'
pager='/usr/bin/less'
passcat='cat /etc/passwd'
patchlevel='6'
path_sep=':'
perl5='/usr/bin/perl'
perl=''
perladmin='root@law.uucp'
perlpath='/usr/bin/perl'
pg='pg'
phostname='hostname'
pidtype='pid_t'
plibpth=''
pm_apiversion='5.005'
pmake=''
pr=''
prefixexp='/usr'
privlib='/System/Library/Perl'
prototype='define'
ptrsize='4'
quadkind='3'
quadtype='long long'
randbits='31'
randfunc='random'
randseedtype='unsigned'
ranlib='/usr/bin/ranlib'
rd_nodata='-1'
revision='5'
rm='rm'
rmail=''
runnm='true'
sPRIEldbl='"E"'
sPRIFldbl='"F"'
sPRIGldbl='"G"'
sPRIX64='"llX"'
sPRId64='"lld"'
sPRIeldbl='"e"'
sPRIfldbl='"f"'
sPRIgldbl='"g"'
sPRIi64='"lli"'
sPRIo64='"llo"'
sPRIu64='"llu"'
sPRIx64='"llx"'
sched_yield='sched_yield()'
scriptdir='/usr/bin'
scriptdirexp='/usr/bin'
sed='sed'
seedfunc='srandom'
selectminbits='32'
selecttype='fd_set *'
sendmail=''
sh='/bin/sh'
shar=''
shmattype='void *'
shortsize='2'
shrpenv='env LD_RUN_PATH=/System/Library/Perl/darwin/CORE'
sig_count='32'
sig_name_init='"ZERO", "HUP", "INT", "QUIT", "ILL", "TRAP", "ABRT", "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS", "PIPE", "ALRM", "TERM", "URG", "STOP", "TSTP", "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU", "XFSZ", "VTALRM", "PROF", "WINCH", "INFO", "USR1", "USR2", "IOT", 0'
sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 6, 0'
signal_t='void'
sitearch='/Library/Perl/darwin'
sitearchexp='/Library/Perl/darwin'
sitebin='/usr/local/bin'
sitebinexp='/usr/local/bin'
sitelib='/Library/Perl'
sitelib_stem='/Library/Perl'
sitelibexp='/Library/Perl'
siteprefix='/usr/local'
siteprefixexp='/usr/local'
sizesize='4'
sizetype='size_t'
sleep=''
smail=''
small=''
sockethdr=''
socketlib=''
socksizetype='int'
sort='sort'
spackage='Perl5'
spitshell='cat'
split=''
src='/private/var/tmp/perl/perl-17.1.obj~34'
ssizetype='ssize_t'
startperl='#!/usr/bin/perl'
stdchar='char'
stdio_base='((fp)->_base)'
stdio_bufsiz='((fp)->_cnt + (fp)->_ptr - (fp)->_base)'
stdio_cnt='((fp)->_cnt)'
stdio_filbuf=''
stdio_ptr='((fp)->_ptr)'
stdio_stream_array='__sF'
strings='/usr/include/string.h'
submit=''
subversion='0'
sysman='/usr/share/man/man1'
tail=''
tar=''
tbl=''
tee=''
test='test'
timeincl='/usr/include/sys/time.h '
timetype='time_t'
touch='touch'
tr='tr'
trnl='\n'
troff=''
u16size='2'
u16type='unsigned short'
u32size='4'
u32type='unsigned long'
u64size='8'
u64type='unsigned long long'
u8size='1'
u8type='unsigned char'
uidformat='"lu"'
uidsign='1'
uidsize='4'
uidtype='uid_t'
uname='uname'
uniq='uniq'
uquadtype='unsigned long long'
use5005threads='undef'
use64bitall='undef'
use64bitint='undef'
usedl='define'
useithreads='undef'
uselargefiles='define'
uselongdouble='undef'
usemorebits='undef'
usemultiplicity='undef'
usemymalloc='n'
usenm='true'
useopcode='true'
useperlio='undef'
useposix='true'
usesfio='false'
useshrplib='true'
usesocks='undef'
usethreads='undef'
usevendorprefix='define'
usevfork='true'
usrinc='/usr/include'
uuname=''
uvoformat='"lo"'
uvsize='4'
uvtype='unsigned long'
uvuformat='"lu"'
uvxformat='"lx"'
vendorarch='/Network/Library/Perl/darwin'
vendorarchexp='/Network/Library/Perl/darwin'
vendorbin='/usr/local/bin'
vendorbinexp='/usr/local/bin'
vendorlib='/Network/Library/Perl'
vendorlib_stem='/Network/Library/Perl'
vendorlibexp='/Network/Library/Perl'
vendorprefix='/usr/local'
vendorprefixexp='/usr/local'
version='5.6.0'
vi=''
voidflags='15'
xlibpth='/usr/lib/386 /lib/386'
xs_apiversion='5.005'
zcat=''
zip='zip'
!END!
my $summary = <<'!END!';
Summary of my $package (revision $baserev version $PERL_VERSION subversion $PERL_SUBVERSION) configuration:
Platform:
osname=$osname, osvers=$osvers, archname=$archname
uname='$myuname'
config_args='$config_args'
hint=$hint, useposix=$useposix, d_sigaction=$d_sigaction
usethreads=$usethreads use5005threads=$use5005threads useithreads=$useithreads usemultiplicity=$usemultiplicity
useperlio=$useperlio d_sfio=$d_sfio uselargefiles=$uselargefiles
use64bitint=$use64bitint use64bitall=$use64bitall uselongdouble=$uselongdouble usesocks=$usesocks
Compiler:
cc='$cc', optimize='$optimize', gccversion=$gccversion
cppflags='$cppflags'
ccflags ='$ccflags'
stdchar='$stdchar', d_stdstdio=$d_stdstdio, usevfork=$usevfork
intsize=$intsize, longsize=$longsize, ptrsize=$ptrsize, doublesize=$doublesize
d_longlong=$d_longlong, longlongsize=$longlongsize, d_longdbl=$d_longdbl, longdblsize=$longdblsize
ivtype='$ivtype', ivsize=$ivsize, nvtype='$nvtype', nvsize=$nvsize, Off_t='$lseektype', lseeksize=$lseeksize
alignbytes=$alignbytes, usemymalloc=$usemymalloc, prototype=$prototype
Linker and Libraries:
ld='$ld', ldflags ='$ldflags'
libpth=$libpth
libs=$libs
libc=$libc, so=$so, useshrplib=$useshrplib, libperl=$libperl
Dynamic Linking:
dlsrc=$dlsrc, dlext=$dlext, d_dlsymun=$d_dlsymun, ccdlflags='$ccdlflags'
cccdlflags='$cccdlflags', lddlflags='$lddlflags'
!END!
my $summary_expanded = 0;
sub myconfig {
return $summary if $summary_expanded;
$summary =~ s{\$(\w+)}
{ my $c = $Config{$1}; defined($c) ? $c : 'undef' }ge;
$summary_expanded = 1;
$summary;
}
sub FETCH {
# check for cached value (which may be undef so we use exists not defined)
return $_[0]->{$_[1]} if (exists $_[0]->{$_[1]});
# Search for it in the big string
my($value, $start, $marker, $quote_type);
$quote_type = "'";
if ($_[1] eq 'byteorder') {
my $t = $Config{ivtype};
my $s = $Config{ivsize};
my $f = $t eq 'long' ? 'L!' : $s == 8 ? 'Q': 'I';
if ($s == 4 || $s == 8) {
my $i = 0;
foreach my $c (reverse(2..$s)) { $i |= ord($c); $i <<= 8 }
$i |= ord(1);
$value = join('', unpack('a'x$s, pack($f, $i)));
} else {
$value = '?'x$s;
}
} else {
$marker = "$_[1]=";
# return undef unless (($value) = $config_sh =~ m/^$_[1]='(.*)'\s*$/m);
# Check for the common case, ' delimited
$start = index($config_sh, "\n$marker$quote_type");
# If that failed, check for " delimited
if ($start == -1) {
$quote_type = '"';
$start = index($config_sh, "\n$marker$quote_type");
}
return undef if ( ($start == -1) && # in case it's first
(substr($config_sh, 0, length($marker)) ne $marker) );
if ($start == -1) {
# It's the very first thing we found. Skip $start forward
# and figure out the quote mark after the =.
$start = length($marker) + 1;
$quote_type = substr($config_sh, $start - 1, 1);
}
else {
$start += length($marker) + 2;
}
$value = substr($config_sh, $start,
index($config_sh, "$quote_type\n", $start) - $start);
}
# If we had a double-quote, we'd better eval it so escape
# sequences and such can be interpolated. Since the incoming
# value is supposed to follow shell rules and not perl rules,
# we escape any perl variable markers
if ($quote_type eq '"') {
$value =~ s/\$/\\\$/g;
$value =~ s/\@/\\\@/g;
eval "\$value = \"$value\"";
}
#$value = sprintf($value) if $quote_type eq '"';
# So we can say "if $Config{'foo'}".
$value = undef if $value eq 'undef';
$_[0]->{$_[1]} = $value; # cache it
return $value;
}
my $prevpos = 0;
sub FIRSTKEY {
$prevpos = 0;
# my($key) = $config_sh =~ m/^(.*?)=/;
substr($config_sh, 0, index($config_sh, '=') );
# $key;
}
sub NEXTKEY {
# Find out how the current key's quoted so we can skip to its end.
my $quote = substr($config_sh, index($config_sh, "=", $prevpos)+1, 1);
my $pos = index($config_sh, qq($quote\n), $prevpos) + 2;
my $len = index($config_sh, "=", $pos) - $pos;
$prevpos = $pos;
$len > 0 ? substr($config_sh, $pos, $len) : undef;
}
sub EXISTS {
# exists($_[0]->{$_[1]}) or $config_sh =~ m/^$_[1]=/m;
exists($_[0]->{$_[1]}) or
index($config_sh, "\n$_[1]='") != -1 or
substr($config_sh, 0, length($_[1])+2) eq "$_[1]='" or
index($config_sh, "\n$_[1]=\"") != -1 or
substr($config_sh, 0, length($_[1])+2) eq "$_[1]=\"";
}
sub STORE { die "\%Config::Config is read-only\n" }
sub DELETE { &STORE }
sub CLEAR { &STORE }
sub config_sh {
$config_sh
}
sub config_re {
my $re = shift;
my @matches = ($config_sh =~ /^$re=.*\n/mg);
@matches ? (print @matches) : print "$re: not found\n";
}
sub config_vars {
foreach(@_){
config_re($_), next if /\W/;
my $v=(exists $Config{$_}) ? $Config{$_} : 'UNKNOWN';
$v='undef' unless defined $v;
print "$_='$v';\n";
}
}
sub TIEHASH { bless {} }
# avoid Config..Exporter..UNIVERSAL search for DESTROY then AUTOLOAD
sub DESTROY { }
tie %Config, 'Config';
1;
__END__
=head1 NAME
Config - access Perl configuration information
=head1 SYNOPSIS
use Config;
if ($Config{'cc'} =~ /gcc/) {
print "built by gcc\n";
}
use Config qw(myconfig config_sh config_vars);
print myconfig();
print config_sh();
config_vars(qw(osname archname));
=head1 DESCRIPTION
The Config module contains all the information that was available to
the C<Configure> program at Perl build time (over 900 values).
Shell variables from the F<config.sh> file (written by Configure) are
stored in the readonly-variable C<%Config>, indexed by their names.
Values stored in config.sh as 'undef' are returned as undefined
values. The perl C<exists> function can be used to check if a
named variable exists.
=over 4
=item myconfig()
Returns a textual summary of the major perl configuration values.
See also C<-V> in L<perlrun/Switches>.
=item config_sh()
Returns the entire perl configuration information in the form of the
original config.sh shell variable assignment script.
=item config_vars(@names)
Prints to STDOUT the values of the named configuration variable. Each is
printed on a separate line in the form:
name='value';
Names which are unknown are output as C<name='UNKNOWN';>.
See also C<-V:name> in L<perlrun/Switches>.
=back
=head1 EXAMPLE
Here's a more sophisticated example of using %Config:
use Config;
use strict;
my %sig_num;
my @sig_name;
unless($Config{sig_name} && $Config{sig_num}) {
die "No sigs?";
} else {
my @names = split ' ', $Config{sig_name};
@sig_num{@names} = split ' ', $Config{sig_num};
foreach (@names) {
$sig_name[$sig_num{$_}] ||= $_;
}
}
print "signal #17 = $sig_name[17]\n";
if ($sig_num{ALRM}) {
print "SIGALRM is $sig_num{ALRM}\n";
}
=head1 WARNING
Because this information is not stored within the perl executable
itself it is possible (but unlikely) that the information does not
relate to the actual perl binary which is being used to access it.
The Config module is installed into the architecture and version
specific library directory ($Config{installarchlib}) and it checks the
perl version number when loaded.
The values stored in config.sh may be either single-quoted or
double-quoted. Double-quoted strings are handy for those cases where you
need to include escape sequences in the strings. To avoid runtime variable
interpolation, any C<$> and C<@> characters are replaced by C<\$> and
C<\@>, respectively. This isn't foolproof, of course, so don't embed C<\$>
or C<\@> in double-quoted strings unless you're willing to deal with the
consequences. (The slashes will end up escaped and the C<$> or C<@> will
trigger variable interpolation)
=head1 GLOSSARY
Most C<Config> variables are determined by the C<Configure> script
on platforms supported by it (which is most UNIX platforms). Some
platforms have custom-made C<Config> variables, and may thus not have
some of the variables described below, or may have extraneous variables
specific to that particular port. See the port specific documentation
in such cases.
=head2 _
=over
=item C<_a>
From F<Unix.U>:
This variable defines the extension used for ordinary libraries.
For unix, it is F<.a>. The F<.> is included. Other possible
values include F<.lib>.
=item C<_exe>
From F<Unix.U>:
This variable defines the extension used for executable files.
For unix it is empty. Other possible values include F<.exe>.
=item C<_o>
From F<Unix.U>:
This variable defines the extension used for object files.
For unix, it is F<.o>. The F<.> is included. Other possible
values include F<.obj>.
=back
=head2 a
=over
=item C<afs>
From F<afs.U>:
This variable is set to C<true> if C<AFS> (Andrew File System) is used
on the system, C<false> otherwise. It is possible to override this
with a hint value or command line option, but you'd better know
what you are doing.
=item C<alignbytes>
From F<alignbytes.U>:
This variable holds the number of bytes required to align a
double-- or a long double when applicable. Usual values are
2, 4 and 8. The default is eight, for safety.
=item C<ansi2knr>
From F<ansi2knr.U>:
This variable is set if the user needs to run ansi2knr.
Currently, this is not supported, so we just abort.
=item C<aphostname>
From F<d_gethname.U>:
This variable contains the command which can be used to compute the
host name. The command is fully qualified by its absolute path, to make
it safe when used by a process with super-user privileges.
=item C<api_revision>
From F<patchlevel.U>:
The three variables, api_revision, api_version, and
api_subversion, specify the version of the oldest perl binary
compatible with the present perl. In a full version string
such as F<5.6.1>, api_revision is the C<5>.
Prior to 5.5.640, the format was a floating point number,
like 5.00563.
F<perl.c>:incpush() and F<lib/lib.pm> will automatically search in
$F<sitelib/.>. for older directories back to the limit specified
by these api_ variables. This is only useful if you have a
perl library directory tree structured like the default one.
See C<INSTALL> for how this works. The versioned site_perl
directory was introduced in 5.005, so that is the lowest
possible value. The version list appropriate for the current
system is determined in F<inc_version_list.U>.
C<XXX> To do: Since compatibility can depend on compile time
options (such as bincompat, longlong, F<etc.>) it should
(perhaps) be set by Configure, but currently it isn't.
Currently, we read a hard-wired value from F<patchlevel.h>.
Perhaps what we ought to do is take the hard-wired value from
F<patchlevel.h> but then modify it if the current Configure
options warrant. F<patchlevel.h> then would use an #ifdef guard.
=item C<api_subversion>
From F<patchlevel.U>:
The three variables, api_revision, api_version, and
api_subversion, specify the version of the oldest perl binary
compatible with the present perl. In a full version string
such as F<5.6.1>, api_subversion is the C<1>. See api_revision for
full details.
=item C<api_version>
From F<patchlevel.U>:
The three variables, api_revision, api_version, and
api_subversion, specify the version of the oldest perl binary
compatible with the present perl. In a full version string
such as F<5.6.1>, api_version is the C<6>. See api_revision for
full details. As a special case, 5.5.0 is rendered in the
old-style as 5.005. (In the 5.005_0x maintenance series,
this was the only versioned directory in $F<sitelib.>)
=item C<api_versionstring>
From F<patchlevel.U>:
This variable combines api_revision, api_version, and
api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
for use as a directory name. This is filesystem dependent.
=item C<ar>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the ar program. After Configure runs,
the value is reset to a plain C<ar> and is not useful.
=item C<archlib>
From F<archlib.U>:
This variable holds the name of the directory in which the user wants
to put architecture-dependent public library files for $package.
It is most often a local directory such as F</usr/local/lib>.
Programs using this variable must be prepared to deal
with filename expansion.
=item C<archlibexp>
From F<archlib.U>:
This variable is the same as the archlib variable, but is
filename expanded at configuration time, for convenient use.
=item C<archname64>
From F<use64bits.U>:
This variable is used for the 64-bitness part of $archname.
=item C<archname>
From F<archname.U>:
This variable is a short name to characterize the current
architecture. It is used mainly to construct the default archlib.
=item C<archobjs>
From F<Unix.U>:
This variable defines any additional objects that must be linked
in with the program on this architecture. On unix, it is usually
empty. It is typically used to include emulations of unix calls
or other facilities. For perl on F<OS/2>, for example, this would
include F<os2/os2.obj>.
=item C<awk>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the awk program. After Configure runs,
the value is reset to a plain C<awk> and is not useful.
=back
=head2 b
=over
=item C<baserev>
From F<baserev.U>:
The base revision level of this package, from the F<.package> file.
=item C<bash>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<bin>
From F<bin.U>:
This variable holds the name of the directory in which the user wants
to put publicly executable images for the package in question. It
is most often a local directory such as F</usr/local/bin>. Programs using
this variable must be prepared to deal with F<~name> substitution.
=item C<bincompat5005>
From F<bincompat5005.U>:
This variable contains y if this version of Perl should be
binary-compatible with Perl 5.005.
=item C<binexp>
From F<bin.U>:
This is the same as the bin variable, but is filename expanded at
configuration time, for use in your makefiles.
=item C<bison>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<byacc>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the byacc program. After Configure runs,
the value is reset to a plain C<byacc> and is not useful.
=item C<byteorder>
From F<byteorder.U>:
This variable holds the byte order. In the following, larger digits
indicate more significance. The variable C<byteorder> is either 4321
on a big-endian machine, or 1234 on a little-endian, or 87654321
on a Cray ... or 3412 with weird order !
=back
=head2 c
=over
=item C<c>
From F<n.U>:
This variable contains the \c string if that is what causes the echo
command to suppress newline. Otherwise it is null. Correct usage is
$echo $n "prompt for a question: $c".
=item C<castflags>
From F<d_castneg.U>:
This variable contains a flag that precise difficulties the
compiler has casting odd floating values to unsigned long:
0 = ok
1 = couldn't cast < 0
2 = couldn't cast >= 0x80000000
4 = couldn't cast in argument expression list
=item C<cat>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the cat program. After Configure runs,
the value is reset to a plain C<cat> and is not useful.
=item C<cc>
From F<cc.U>:
This variable holds the name of a command to execute a C compiler which
can resolve multiple global references that happen to have the same
name. Usual values are C<cc>, C<Mcc>, C<cc -M>, and C<gcc>.
=item C<cccdlflags>
From F<dlsrc.U>:
This variable contains any special flags that might need to be
passed with C<cc -c> to compile modules to be used to create a shared
library that will be used for dynamic loading. For hpux, this
should be +z. It is up to the makefile to use it.
=item C<ccdlflags>
From F<dlsrc.U>:
This variable contains any special flags that might need to be
passed to cc to link with a shared library for dynamic loading.
It is up to the makefile to use it. For sunos 4.1, it should
be empty.
=item C<ccflags>
From F<ccflags.U>:
This variable contains any additional C compiler flags desired by
the user. It is up to the Makefile to use this.
=item C<ccsymbols>
From F<Cppsym.U>:
The variable contains the symbols defined by the C compiler alone.
The symbols defined by cpp or by cc when it calls cpp are not in
this list, see cppsymbols and cppccsymbols.
The list is a space-separated list of symbol=value tokens.
=item C<cf_by>
From F<cf_who.U>:
Login name of the person who ran the Configure script and answered the
questions. This is used to tag both F<config.sh> and F<config_h.SH>.
=item C<cf_email>
From F<cf_email.U>:
Electronic mail address of the person who ran Configure. This can be
used by units that require the user's e-mail, like F<MailList.U>.
=item C<cf_time>
From F<cf_who.U>:
Holds the output of the C<date> command when the configuration file was
produced. This is used to tag both F<config.sh> and F<config_h.SH>.
=item C<charsize>
From F<charsize.U>:
This variable contains the value of the C<CHARSIZE> symbol, which
indicates to the C program how many bytes there are in a character.
=item C<chgrp>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<chmod>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<chown>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<clocktype>
From F<d_times.U>:
This variable holds the type returned by times(). It can be long,
or clock_t on C<BSD> sites (in which case <sys/types.h> should be
included).
=item C<comm>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the comm program. After Configure runs,
the value is reset to a plain C<comm> and is not useful.
=item C<compress>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=back
=head2 C
=over
=item C<CONFIGDOTSH>
From F<Oldsyms.U>:
This is set to C<true> in F<config.sh> so that a shell script
sourcing F<config.sh> can tell if it has been sourced already.
=item C<contains>
From F<contains.U>:
This variable holds the command to do a grep with a proper return
status. On most sane systems it is simply C<grep>. On insane systems
it is a grep followed by a cat followed by a test. This variable
is primarily for the use of other Configure units.
=item C<cp>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the cp program. After Configure runs,
the value is reset to a plain C<cp> and is not useful.
=item C<cpio>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<cpp>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the cpp program. After Configure runs,
the value is reset to a plain C<cpp> and is not useful.
=item C<cpp_stuff>
From F<cpp_stuff.U>:
This variable contains an identification of the catenation mechanism
used by the C preprocessor.
=item C<cppccsymbols>
From F<Cppsym.U>:
The variable contains the symbols defined by the C compiler
when it calls cpp. The symbols defined by the cc alone or cpp
alone are not in this list, see ccsymbols and cppsymbols.
The list is a space-separated list of symbol=value tokens.
=item C<cppflags>
From F<ccflags.U>:
This variable holds the flags that will be passed to the C pre-
processor. It is up to the Makefile to use it.
=item C<cpplast>
From F<cppstdin.U>:
This variable has the same functionality as cppminus, only it applies
to cpprun and not cppstdin.
=item C<cppminus>
From F<cppstdin.U>:
This variable contains the second part of the string which will invoke
the C preprocessor on the standard input and produce to standard
output. This variable will have the value C<-> if cppstdin needs
a minus to specify standard input, otherwise the value is "".
=item C<cpprun>
From F<cppstdin.U>:
This variable contains the command which will invoke a C preprocessor
on standard input and put the output to stdout. It is guaranteed not
to be a wrapper and may be a null string if no preprocessor can be
made directly available. This preprocessor might be different from the
one used by the C compiler. Don't forget to append cpplast after the
preprocessor options.
=item C<cppstdin>
From F<cppstdin.U>:
This variable contains the command which will invoke the C
preprocessor on standard input and put the output to stdout.
It is primarily used by other Configure units that ask about
preprocessor symbols.
=item C<cppsymbols>
From F<Cppsym.U>:
The variable contains the symbols defined by the C preprocessor
alone. The symbols defined by cc or by cc when it calls cpp are
not in this list, see ccsymbols and cppccsymbols.
The list is a space-separated list of symbol=value tokens.
=item C<crosscompile>
From F<crosscompile.U>:
This variable conditionally defines the C<CROSSCOMPILE> symbol
which signifies that the build process is be a cross-compilation.
This is normally set by hints files or from Configure command line.
=item C<cryptlib>
From F<d_crypt.U>:
This variable holds -lcrypt or the path to a F<libcrypt.a> archive if
the crypt() function is not defined in the standard C library. It is
up to the Makefile to use this.
=item C<csh>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the csh program. After Configure runs,
the value is reset to a plain C<csh> and is not useful.
=back
=head2 d
=over
=item C<d_access>
From F<d_access.U>:
This variable conditionally defines C<HAS_ACCESS> if the access() system
call is available to check for access permissions using real IDs.
=item C<d_accessx>
From F<d_accessx.U>:
This variable conditionally defines the C<HAS_ACCESSX> symbol, which
indicates to the C program that the accessx() routine is available.
=item C<d_alarm>
From F<d_alarm.U>:
This variable conditionally defines the C<HAS_ALARM> symbol, which
indicates to the C program that the alarm() routine is available.
=item C<d_archlib>
From F<archlib.U>:
This variable conditionally defines C<ARCHLIB> to hold the pathname
of architecture-dependent library files for $package. If
$archlib is the same as $privlib, then this is set to undef.
=item C<d_atolf>
From F<atolf.U>:
This variable conditionally defines the C<HAS_ATOLF> symbol, which
indicates to the C program that the atolf() routine is available.
=item C<d_atoll>
From F<atoll.U>:
This variable conditionally defines the C<HAS_ATOLL> symbol, which
indicates to the C program that the atoll() routine is available.
=item C<d_attribut>
From F<d_attribut.U>:
This variable conditionally defines C<HASATTRIBUTE>, which
indicates the C compiler can check for function attributes,
such as printf formats.
=item C<d_bcmp>
From F<d_bcmp.U>:
This variable conditionally defines the C<HAS_BCMP> symbol if
the bcmp() routine is available to compare strings.
=item C<d_bcopy>
From F<d_bcopy.U>:
This variable conditionally defines the C<HAS_BCOPY> symbol if
the bcopy() routine is available to copy strings.
=item C<d_bincompat5005>
From F<bincompat5005.U>:
This variable conditionally defines BINCOMPAT5005 so that F<embed.h>
can take special action if this version of Perl should be
binary-compatible with Perl 5.005. This is impossible for builds
that use features like threads and multiplicity it is always $undef
for those versions.
=item C<d_bsd>
From F<Guess.U>:
This symbol conditionally defines the symbol C<BSD> when running on a
C<BSD> system.
=item C<d_bsdgetpgrp>
From F<d_getpgrp.U>:
This variable conditionally defines C<USE_BSD_GETPGRP> if
getpgrp needs one arguments whereas C<USG> one needs none.
=item C<d_bsdsetpgrp>
From F<d_setpgrp.U>:
This variable conditionally defines C<USE_BSD_SETPGRP> if
setpgrp needs two arguments whereas C<USG> one needs none.
See also d_setpgid for a C<POSIX> interface.
=item C<d_bzero>
From F<d_bzero.U>:
This variable conditionally defines the C<HAS_BZERO> symbol if
the bzero() routine is available to set memory to 0.
=item C<d_casti32>
From F<d_casti32.U>:
This variable conditionally defines CASTI32, which indicates
whether the C compiler can cast large floats to 32-bit ints.
=item C<d_castneg>
From F<d_castneg.U>:
This variable conditionally defines C<CASTNEG>, which indicates
wether the C compiler can cast negative float to unsigned.
=item C<d_charvspr>
From F<d_vprintf.U>:
This variable conditionally defines C<CHARVSPRINTF> if this system
has vsprintf returning type (char*). The trend seems to be to
declare it as "int vsprintf()".
=item C<d_chown>
From F<d_chown.U>:
This variable conditionally defines the C<HAS_CHOWN> symbol, which
indicates to the C program that the chown() routine is available.
=item C<d_chroot>
From F<d_chroot.U>:
This variable conditionally defines the C<HAS_CHROOT> symbol, which
indicates to the C program that the chroot() routine is available.
=item C<d_chsize>
From F<d_chsize.U>:
This variable conditionally defines the C<CHSIZE> symbol, which
indicates to the C program that the chsize() routine is available
to truncate files. You might need a -lx to get this routine.
=item C<d_closedir>
From F<d_closedir.U>:
This variable conditionally defines C<HAS_CLOSEDIR> if closedir() is
available.
=item C<d_const>
From F<d_const.U>:
This variable conditionally defines the C<HASCONST> symbol, which
indicates to the C program that this C compiler knows about the
const type.
=item C<d_crypt>
From F<d_crypt.U>:
This variable conditionally defines the C<CRYPT> symbol, which
indicates to the C program that the crypt() routine is available
to encrypt passwords and the like.
=item C<d_csh>
From F<d_csh.U>:
This variable conditionally defines the C<CSH> symbol, which
indicates to the C program that the C-shell exists.
=item C<d_cuserid>
From F<d_cuserid.U>:
This variable conditionally defines the C<HAS_CUSERID> symbol, which
indicates to the C program that the cuserid() routine is available
to get character login names.
=item C<d_dbl_dig>
From F<d_dbl_dig.U>:
This variable conditionally defines d_dbl_dig if this system's
header files provide C<DBL_DIG>, which is the number of significant
digits in a double precision number.
=item C<d_difftime>
From F<d_difftime.U>:
This variable conditionally defines the C<HAS_DIFFTIME> symbol, which
indicates to the C program that the difftime() routine is available.
=item C<d_dirnamlen>
From F<i_dirent.U>:
This variable conditionally defines C<DIRNAMLEN>, which indicates
to the C program that the length of directory entry names is
provided by a d_namelen field.
=item C<d_dlerror>
From F<d_dlerror.U>:
This variable conditionally defines the C<HAS_DLERROR> symbol, which
indicates to the C program that the dlerror() routine is available.
=item C<d_dlopen>
From F<d_dlopen.U>:
This variable conditionally defines the C<HAS_DLOPEN> symbol, which
indicates to the C program that the dlopen() routine is available.
=item C<d_dlsymun>
From F<d_dlsymun.U>:
This variable conditionally defines C<DLSYM_NEEDS_UNDERSCORE>, which
indicates that we need to prepend an underscore to the symbol
name before calling dlsym().
=item C<d_dosuid>
From F<d_dosuid.U>:
This variable conditionally defines the symbol C<DOSUID>, which
tells the C program that it should insert setuid emulation code
on hosts which have setuid #! scripts disabled.
=item C<d_drand48proto>
From F<d_drand48proto.U>:
This variable conditionally defines the HAS_DRAND48_PROTO symbol,
which indicates to the C program that the system provides
a prototype for the drand48() function. Otherwise, it is
up to the program to supply one.
=item C<d_dup2>
From F<d_dup2.U>:
This variable conditionally defines HAS_DUP2 if dup2() is
available to duplicate file descriptors.
=item C<d_eaccess>
From F<d_eaccess.U>:
This variable conditionally defines the C<HAS_EACCESS> symbol, which
indicates to the C program that the eaccess() routine is available.
=item C<d_endgrent>
From F<d_endgrent.U>:
This variable conditionally defines the C<HAS_ENDGRENT> symbol, which
indicates to the C program that the endgrent() routine is available
for sequential access of the group database.
=item C<d_endhent>
From F<d_endhent.U>:
This variable conditionally defines C<HAS_ENDHOSTENT> if endhostent() is
available to close whatever was being used for host queries.
=item C<d_endnent>
From F<d_endnent.U>:
This variable conditionally defines C<HAS_ENDNETENT> if endnetent() is
available to close whatever was being used for network queries.
=item C<d_endpent>
From F<d_endpent.U>:
This variable conditionally defines C<HAS_ENDPROTOENT> if endprotoent() is
available to close whatever was being used for protocol queries.
=item C<d_endpwent>
From F<d_endpwent.U>:
This variable conditionally defines the C<HAS_ENDPWENT> symbol, which
indicates to the C program that the endpwent() routine is available
for sequential access of the passwd database.
=item C<d_endsent>
From F<d_endsent.U>:
This variable conditionally defines C<HAS_ENDSERVENT> if endservent() is
available to close whatever was being used for service queries.
=item C<d_endspent>
From F<d_endspent.U>:
This variable conditionally defines C<HAS_ENDSPENT> if endspent() is
available to finalize the scan of SysV shadow password entries.
=item C<d_eofnblk>
From F<nblock_io.U>:
This variable conditionally defines C<EOF_NONBLOCK> if C<EOF> can be seen
when reading from a non-blocking F<I/O> source.
=item C<d_eunice>
From F<Guess.U>:
This variable conditionally defines the symbols C<EUNICE> and C<VAX>, which
alerts the C program that it must deal with ideosyncracies of C<VMS>.
=item C<d_fchmod>
From F<d_fchmod.U>:
This variable conditionally defines the C<HAS_FCHMOD> symbol, which
indicates to the C program that the fchmod() routine is available
to change mode of opened files.
=item C<d_fchown>
From F<d_fchown.U>:
This variable conditionally defines the C<HAS_FCHOWN> symbol, which
indicates to the C program that the fchown() routine is available
to change ownership of opened files.
=item C<d_fcntl>
From F<d_fcntl.U>:
This variable conditionally defines the C<HAS_FCNTL> symbol, and indicates
whether the fcntl() function exists
=item C<d_fd_macros>
From F<d_fd_set.U>:
This variable contains the eventual value of the C<HAS_FD_MACROS> symbol,
which indicates if your C compiler knows about the macros which
manipulate an fd_set.
=item C<d_fd_set>
From F<d_fd_set.U>:
This variable contains the eventual value of the C<HAS_FD_SET> symbol,
which indicates if your C compiler knows about the fd_set typedef.
=item C<d_fds_bits>
From F<d_fd_set.U>:
This variable contains the eventual value of the C<HAS_FDS_BITS> symbol,
which indicates if your fd_set typedef contains the fds_bits member.
If you have an fd_set typedef, but the dweebs who installed it did
a half-fast job and neglected to provide the macros to manipulate
an fd_set, C<HAS_FDS_BITS> will let us know how to fix the gaffe.
=item C<d_fgetpos>
From F<d_fgetpos.U>:
This variable conditionally defines C<HAS_FGETPOS> if fgetpos() is
available to get the file position indicator.
=item C<d_flexfnam>
From F<d_flexfnam.U>:
This variable conditionally defines the C<FLEXFILENAMES> symbol, which
indicates that the system supports filenames longer than 14 characters.
=item C<d_flock>
From F<d_flock.U>:
This variable conditionally defines C<HAS_FLOCK> if flock() is
available to do file locking.
=item C<d_fork>
From F<d_fork.U>:
This variable conditionally defines the C<HAS_FORK> symbol, which
indicates to the C program that the fork() routine is available.
=item C<d_fpathconf>
From F<d_pathconf.U>:
This variable conditionally defines the C<HAS_FPATHCONF> symbol, which
indicates to the C program that the pathconf() routine is available
to determine file-system related limits and options associated
with a given open file descriptor.
=item C<d_fpos64_t>
From F<d_fpos64_t.U>:
This symbol will be defined if the C compiler supports fpos64_t.
=item C<d_fs_data_s>
From F<d_fs_data_s.U>:
This variable conditionally defines the C<HAS_STRUCT_FS_DATA> symbol,
which indicates that the struct fs_data is supported.
=item C<d_fseeko>
From F<d_fseeko.U>:
This variable conditionally defines the C<HAS_FSEEKO> symbol, which
indicates to the C program that the fseeko() routine is available.
=item C<d_fsetpos>
From F<d_fsetpos.U>:
This variable conditionally defines C<HAS_FSETPOS> if fsetpos() is
available to set the file position indicator.
=item C<d_fstatfs>
From F<d_fstatfs.U>:
This variable conditionally defines the C<HAS_FSTATFS> symbol, which
indicates to the C program that the fstatfs() routine is available.
=item C<d_fstatvfs>
From F<d_statvfs.U>:
This variable conditionally defines the C<HAS_FSTATVFS> symbol, which
indicates to the C program that the fstatvfs() routine is available.
=item C<d_ftello>
From F<d_ftello.U>:
This variable conditionally defines the C<HAS_FTELLO> symbol, which
indicates to the C program that the ftello() routine is available.
=item C<d_ftime>
From F<d_ftime.U>:
This variable conditionally defines the C<HAS_FTIME> symbol, which indicates
that the ftime() routine exists. The ftime() routine is basically
a sub-second accuracy clock.
=item C<d_Gconvert>
From F<d_gconvert.U>:
This variable holds what Gconvert is defined as to convert
floating point numbers into strings. It could be C<gconvert>
or a more C<complex> macro emulating gconvert with gcvt() or sprintf.
Possible values are:
d_Gconvert=C<gconvert((x),(n),(t),(b))>
d_Gconvert=C<gcvt((x),(n),(b))>
d_Gconvert=C<sprintf((b),F<%F<.>*g>,(n),(x))>
=item C<d_getcwd>
From F<d_getcwd.U>:
This variable conditionally defines the C<HAS_GETCWD> symbol, which
indicates to the C program that the getcwd() routine is available
to get the current working directory.
=item C<d_getfsstat>
From F<d_getfsstat.U>:
This variable conditionally defines the C<HAS_GETFSSTAT> symbol, which
indicates to the C program that the getfsstat() routine is available.
=item C<d_getgrent>
From F<d_getgrent.U>:
This variable conditionally defines the C<HAS_GETGRENT> symbol, which
indicates to the C program that the getgrent() routine is available
for sequential access of the group database.
=item C<d_getgrps>
From F<d_getgrps.U>:
This variable conditionally defines the C<HAS_GETGROUPS> symbol, which
indicates to the C program that the getgroups() routine is available
to get the list of process groups.
=item C<d_gethbyaddr>
From F<d_gethbyad.U>:
This variable conditionally defines the C<HAS_GETHOSTBYADDR> symbol, which
indicates to the C program that the gethostbyaddr() routine is available
to look up hosts by their C<IP> addresses.
=item C<d_gethbyname>
From F<d_gethbynm.U>:
This variable conditionally defines the C<HAS_GETHOSTBYNAME> symbol, which
indicates to the C program that the gethostbyname() routine is available
to look up host names in some data base or other.
=item C<d_gethent>
From F<d_gethent.U>:
This variable conditionally defines C<HAS_GETHOSTENT> if gethostent() is
available to look up host names in some data base or another.
=item C<d_gethname>
From F<d_gethname.U>:
This variable conditionally defines the C<HAS_GETHOSTNAME> symbol, which
indicates to the C program that the gethostname() routine may be
used to derive the host name.
=item C<d_gethostprotos>
From F<d_gethostprotos.U>:
This variable conditionally defines the C<HAS_GETHOST_PROTOS> symbol,
which indicates to the C program that <netdb.h> supplies
prototypes for the various gethost*() functions.
See also F<netdbtype.U> for probing for various netdb types.
=item C<d_getlogin>
From F<d_getlogin.U>:
This variable conditionally defines the C<HAS_GETLOGIN> symbol, which
indicates to the C program that the getlogin() routine is available
to get the login name.
=item C<d_getmnt>
From F<d_getmnt.U>:
This variable conditionally defines the C<HAS_GETMNT> symbol, which
indicates to the C program that the getmnt() routine is available
to retrieve one or more mount info blocks by filename.
=item C<d_getmntent>
From F<d_getmntent.U>:
This variable conditionally defines the C<HAS_GETMNTENT> symbol, which
indicates to the C program that the getmntent() routine is available
to iterate through mounted files to get their mount info.
=item C<d_getnbyaddr>
From F<d_getnbyad.U>:
This variable conditionally defines the C<HAS_GETNETBYADDR> symbol, which
indicates to the C program that the getnetbyaddr() routine is available
to look up networks by their C<IP> addresses.
=item C<d_getnbyname>
From F<d_getnbynm.U>:
This variable conditionally defines the C<HAS_GETNETBYNAME> symbol, which
indicates to the C program that the getnetbyname() routine is available
to look up networks by their names.
=item C<d_getnent>
From F<d_getnent.U>:
This variable conditionally defines C<HAS_GETNETENT> if getnetent() is
available to look up network names in some data base or another.
=item C<d_getnetprotos>
From F<d_getnetprotos.U>:
This variable conditionally defines the C<HAS_GETNET_PROTOS> symbol,
which indicates to the C program that <netdb.h> supplies
prototypes for the various getnet*() functions.
See also F<netdbtype.U> for probing for various netdb types.
=item C<d_getpbyname>
From F<d_getprotby.U>:
This variable conditionally defines the C<HAS_GETPROTOBYNAME>
symbol, which indicates to the C program that the
getprotobyname() routine is available to look up protocols
by their name.
=item C<d_getpbynumber>
From F<d_getprotby.U>:
This variable conditionally defines the C<HAS_GETPROTOBYNUMBER>
symbol, which indicates to the C program that the
getprotobynumber() routine is available to look up protocols
by their number.
=item C<d_getpent>
From F<d_getpent.U>:
This variable conditionally defines C<HAS_GETPROTOENT> if getprotoent() is
available to look up protocols in some data base or another.
=item C<d_getpgid>
From F<d_getpgid.U>:
This variable conditionally defines the C<HAS_GETPGID> symbol, which
indicates to the C program that the getpgid(pid) function
is available to get the process group id.
=item C<d_getpgrp2>
From F<d_getpgrp2.U>:
This variable conditionally defines the HAS_GETPGRP2 symbol, which
indicates to the C program that the getpgrp2() (as in F<DG/C<UX>>) routine
is available to get the current process group.
=item C<d_getpgrp>
From F<d_getpgrp.U>:
This variable conditionally defines C<HAS_GETPGRP> if getpgrp() is
available to get the current process group.
=item C<d_getppid>
From F<d_getppid.U>:
This variable conditionally defines the C<HAS_GETPPID> symbol, which
indicates to the C program that the getppid() routine is available
to get the parent process C<ID>.
=item C<d_getprior>
From F<d_getprior.U>:
This variable conditionally defines C<HAS_GETPRIORITY> if getpriority()
is available to get a process's priority.
=item C<d_getprotoprotos>
From F<d_getprotoprotos.U>:
This variable conditionally defines the C<HAS_GETPROTO_PROTOS> symbol,
which indicates to the C program that <netdb.h> supplies
prototypes for the various getproto*() functions.
See also F<netdbtype.U> for probing for various netdb types.
=item C<d_getpwent>
From F<d_getpwent.U>:
This variable conditionally defines the C<HAS_GETPWENT> symbol, which
indicates to the C program that the getpwent() routine is available
for sequential access of the passwd database.
=item C<d_getsbyname>
From F<d_getsrvby.U>:
This variable conditionally defines the C<HAS_GETSERVBYNAME>
symbol, which indicates to the C program that the
getservbyname() routine is available to look up services
by their name.
=item C<d_getsbyport>
From F<d_getsrvby.U>:
This variable conditionally defines the C<HAS_GETSERVBYPORT>
symbol, which indicates to the C program that the
getservbyport() routine is available to look up services
by their port.
=item C<d_getsent>
From F<d_getsent.U>:
This variable conditionally defines C<HAS_GETSERVENT> if getservent() is
available to look up network services in some data base or another.
=item C<d_getservprotos>
From F<d_getservprotos.U>:
This variable conditionally defines the C<HAS_GETSERV_PROTOS> symbol,
which indicates to the C program that <netdb.h> supplies
prototypes for the various getserv*() functions.
See also F<netdbtype.U> for probing for various netdb types.
=item C<d_getspent>
From F<d_getspent.U>:
This variable conditionally defines C<HAS_GETSPENT> if getspent() is
available to retrieve SysV shadow password entries sequentially.
=item C<d_getspnam>
From F<d_getspnam.U>:
This variable conditionally defines C<HAS_GETSPNAM> if getspnam() is
available to retrieve SysV shadow password entries by name.
=item C<d_gettimeod>
From F<d_ftime.U>:
This variable conditionally defines the C<HAS_GETTIMEOFDAY> symbol, which
indicates that the gettimeofday() system call exists (to obtain a
sub-second accuracy clock). You should probably include <sys/resource.h>.
=item C<d_gnulibc>
From F<d_gnulibc.U>:
Defined if we're dealing with the C<GNU> C Library.
=item C<d_grpasswd>
From F<i_grp.U>:
This variable conditionally defines C<GRPASSWD>, which indicates
that struct group in <grp.h> contains gr_passwd.
=item C<d_hasmntopt>
From F<d_hasmntopt.U>:
This variable conditionally defines the C<HAS_HASMNTOPT> symbol, which
indicates to the C program that the hasmntopt() routine is available
to query the mount options of file systems.
=item C<d_htonl>
From F<d_htonl.U>:
This variable conditionally defines C<HAS_HTONL> if htonl() and its
friends are available to do network order byte swapping.
=item C<d_iconv>
From F<d_iconv.U>:
This variable conditionally defines the C<HAS_ICONV> symbol, which
indicates to the C program that the iconv() routine is available.
=item C<d_index>
From F<d_strchr.U>:
This variable conditionally defines C<HAS_INDEX> if index() and
rindex() are available for string searching.
=item C<d_inetaton>
From F<d_inetaton.U>:
This variable conditionally defines the C<HAS_INET_ATON> symbol, which
indicates to the C program that the inet_aton() function is available
to parse C<IP> address C<dotted-quad> strings.
=item C<d_int64_t>
From F<d_int64_t.U>:
This symbol will be defined if the C compiler supports int64_t.
=item C<d_isascii>
From F<d_isascii.U>:
This variable conditionally defines the C<HAS_ISASCII> constant,
which indicates to the C program that isascii() is available.
=item C<d_killpg>
From F<d_killpg.U>:
This variable conditionally defines the C<HAS_KILLPG> symbol, which
indicates to the C program that the killpg() routine is available
to kill process groups.
=item C<d_lchown>
From F<d_lchown.U>:
This variable conditionally defines the C<HAS_LCHOWN> symbol, which
indicates to the C program that the lchown() routine is available
to operate on a symbolic link (instead of following the link).
=item C<d_ldbl_dig>
From F<d_ldbl_dig.U>:
This variable conditionally defines d_ldbl_dig if this system's
header files provide C<LDBL_DIG>, which is the number of significant
digits in a long double precision number.
=item C<d_link>
From F<d_link.U>:
This variable conditionally defines C<HAS_LINK> if link() is
available to create hard links.
=item C<d_locconv>
From F<d_locconv.U>:
This variable conditionally defines C<HAS_LOCALECONV> if localeconv() is
available for numeric and monetary formatting conventions.
=item C<d_lockf>
From F<d_lockf.U>:
This variable conditionally defines C<HAS_LOCKF> if lockf() is
available to do file locking.
=item C<d_longdbl>
From F<d_longdbl.U>:
This variable conditionally defines C<HAS_LONG_DOUBLE> if
the long double type is supported.
=item C<d_longlong>
From F<d_longlong.U>:
This variable conditionally defines C<HAS_LONG_LONG> if
the long long type is supported.
=item C<d_lseekproto>
From F<d_lseekproto.U>:
This variable conditionally defines the C<HAS_LSEEK_PROTO> symbol,
which indicates to the C program that the system provides
a prototype for the lseek() function. Otherwise, it is
up to the program to supply one.
=item C<d_lstat>
From F<d_lstat.U>:
This variable conditionally defines C<HAS_LSTAT> if lstat() is
available to do file stats on symbolic links.
=item C<d_madvise>
From F<d_madvise.U>:
This variable conditionally defines C<HAS_MADVISE> if madvise() is
available to map a file into memory.
=item C<d_mblen>
From F<d_mblen.U>:
This variable conditionally defines the C<HAS_MBLEN> symbol, which
indicates to the C program that the mblen() routine is available
to find the number of bytes in a multibye character.
=item C<d_mbstowcs>
From F<d_mbstowcs.U>:
This variable conditionally defines the C<HAS_MBSTOWCS> symbol, which
indicates to the C program that the mbstowcs() routine is available
to convert a multibyte string into a wide character string.
=item C<d_mbtowc>
From F<d_mbtowc.U>:
This variable conditionally defines the C<HAS_MBTOWC> symbol, which
indicates to the C program that the mbtowc() routine is available
to convert multibyte to a wide character.
=item C<d_memchr>
From F<d_memchr.U>:
This variable conditionally defines the C<HAS_MEMCHR> symbol, which
indicates to the C program that the memchr() routine is available
to locate characters within a C string.
=item C<d_memcmp>
From F<d_memcmp.U>:
This variable conditionally defines the C<HAS_MEMCMP> symbol, which
indicates to the C program that the memcmp() routine is available
to compare blocks of memory.
=item C<d_memcpy>
From F<d_memcpy.U>:
This variable conditionally defines the C<HAS_MEMCPY> symbol, which
indicates to the C program that the memcpy() routine is available
to copy blocks of memory.
=item C<d_memmove>
From F<d_memmove.U>:
This variable conditionally defines the C<HAS_MEMMOVE> symbol, which
indicates to the C program that the memmove() routine is available
to copy potentatially overlapping blocks of memory.
=item C<d_memset>
From F<d_memset.U>:
This variable conditionally defines the C<HAS_MEMSET> symbol, which
indicates to the C program that the memset() routine is available
to set blocks of memory.
=item C<d_mkdir>
From F<d_mkdir.U>:
This variable conditionally defines the C<HAS_MKDIR> symbol, which
indicates to the C program that the mkdir() routine is available
to create F<directories.>.
=item C<d_mkdtemp>
From F<d_mkdtemp.U>:
This variable conditionally defines the C<HAS_MKDTEMP> symbol, which
indicates to the C program that the mkdtemp() routine is available
to exclusively create a uniquely named temporary directory.
=item C<d_mkfifo>
From F<d_mkfifo.U>:
This variable conditionally defines the C<HAS_MKFIFO> symbol, which
indicates to the C program that the mkfifo() routine is available.
=item C<d_mkstemp>
From F<d_mkstemp.U>:
This variable conditionally defines the C<HAS_MKSTEMP> symbol, which
indicates to the C program that the mkstemp() routine is available
to exclusively create and open a uniquely named temporary file.
=item C<d_mkstemps>
From F<d_mkstemps.U>:
This variable conditionally defines the C<HAS_MKSTEMPS> symbol, which
indicates to the C program that the mkstemps() routine is available
to exclusively create and open a uniquely named (with a suffix)
temporary file.
=item C<d_mktime>
From F<d_mktime.U>:
This variable conditionally defines the C<HAS_MKTIME> symbol, which
indicates to the C program that the mktime() routine is available.
=item C<d_mmap>
From F<d_mmap.U>:
This variable conditionally defines C<HAS_MMAP> if mmap() is
available to map a file into memory.
=item C<d_mprotect>
From F<d_mprotect.U>:
This variable conditionally defines C<HAS_MPROTECT> if mprotect() is
available to modify the access protection of a memory mapped file.
=item C<d_msg>
From F<d_msg.U>:
This variable conditionally defines the C<HAS_MSG> symbol, which
indicates that the entire msg*(2) library is present.
=item C<d_msg_ctrunc>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_MSG_CTRUNC> symbol,
which indicates that the C<MSG_CTRUNC> is available. #ifdef is
not enough because it may be an enum, glibc has been known to do this.
=item C<d_msg_dontroute>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_MSG_DONTROUTE> symbol,
which indicates that the C<MSG_DONTROUTE> is available. #ifdef is
not enough because it may be an enum, glibc has been known to do this.
=item C<d_msg_oob>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_MSG_OOB> symbol,
which indicates that the C<MSG_OOB> is available. #ifdef is
not enough because it may be an enum, glibc has been known to do this.
=item C<d_msg_peek>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_MSG_PEEK> symbol,
which indicates that the C<MSG_PEEK> is available. #ifdef is
not enough because it may be an enum, glibc has been known to do this.
=item C<d_msg_proxy>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_MSG_PROXY> symbol,
which indicates that the C<MSG_PROXY> is available. #ifdef is
not enough because it may be an enum, glibc has been known to do this.
=item C<d_msgctl>
From F<d_msgctl.U>:
This variable conditionally defines the C<HAS_MSGCTL> symbol, which
indicates to the C program that the msgctl() routine is available.
=item C<d_msgget>
From F<d_msgget.U>:
This variable conditionally defines the C<HAS_MSGGET> symbol, which
indicates to the C program that the msgget() routine is available.
=item C<d_msgrcv>
From F<d_msgrcv.U>:
This variable conditionally defines the C<HAS_MSGRCV> symbol, which
indicates to the C program that the msgrcv() routine is available.
=item C<d_msgsnd>
From F<d_msgsnd.U>:
This variable conditionally defines the C<HAS_MSGSND> symbol, which
indicates to the C program that the msgsnd() routine is available.
=item C<d_msync>
From F<d_msync.U>:
This variable conditionally defines C<HAS_MSYNC> if msync() is
available to synchronize a mapped file.
=item C<d_munmap>
From F<d_munmap.U>:
This variable conditionally defines C<HAS_MUNMAP> if munmap() is
available to unmap a region mapped by mmap().
=item C<d_mymalloc>
From F<mallocsrc.U>:
This variable conditionally defines C<MYMALLOC> in case other parts
of the source want to take special action if C<MYMALLOC> is used.
This may include different sorts of profiling or error detection.
=item C<d_nice>
From F<d_nice.U>:
This variable conditionally defines the C<HAS_NICE> symbol, which
indicates to the C program that the nice() routine is available.
=item C<d_nv_preserves_uv>
From F<perlxv.U>:
This variable indicates whether a variable of type nvtype
can preserve all the bits a variable of type uvtype.
=item C<d_off64_t>
From F<d_off64_t.U>:
This symbol will be defined if the C compiler supports off64_t.
=item C<d_old_pthread_create_joinable>
From F<d_pthrattrj.U>:
This variable conditionally defines pthread_create_joinable.
undef if F<pthread.h> defines C<PTHREAD_CREATE_JOINABLE>.
=item C<d_oldpthreads>
From F<usethreads.U>:
This variable conditionally defines the C<OLD_PTHREADS_API> symbol,
and indicates that Perl should be built to use the old
draft C<POSIX> threads C<API>. This is only potentially meaningful if
usethreads is set.
=item C<d_oldsock>
From F<d_socket.U>:
This variable conditionally defines the C<OLDSOCKET> symbol, which
indicates that the C<BSD> socket interface is based on 4.1c and not 4.2.
=item C<d_open3>
From F<d_open3.U>:
This variable conditionally defines the HAS_OPEN3 manifest constant,
which indicates to the C program that the 3 argument version of
the open(2) function is available.
=item C<d_pathconf>
From F<d_pathconf.U>:
This variable conditionally defines the C<HAS_PATHCONF> symbol, which
indicates to the C program that the pathconf() routine is available
to determine file-system related limits and options associated
with a given filename.
=item C<d_pause>
From F<d_pause.U>:
This variable conditionally defines the C<HAS_PAUSE> symbol, which
indicates to the C program that the pause() routine is available
to suspend a process until a signal is received.
=item C<d_phostname>
From F<d_gethname.U>:
This variable conditionally defines the C<HAS_PHOSTNAME> symbol, which
contains the shell command which, when fed to popen(), may be
used to derive the host name.
=item C<d_pipe>
From F<d_pipe.U>:
This variable conditionally defines the C<HAS_PIPE> symbol, which
indicates to the C program that the pipe() routine is available
to create an inter-process channel.
=item C<d_poll>
From F<d_poll.U>:
This variable conditionally defines the C<HAS_POLL> symbol, which
indicates to the C program that the poll() routine is available
to poll active file descriptors.
=item C<d_portable>
From F<d_portable.U>:
This variable conditionally defines the C<PORTABLE> symbol, which
indicates to the C program that it should not assume that it is
running on the machine it was compiled on.
=item C<d_PRId64>
From F<quadfio.U>:
This variable conditionally defines the PERL_PRId64 symbol, which
indiciates that stdio has a symbol to print 64-bit decimal numbers.
=item C<d_PRIeldbl>
From F<longdblfio.U>:
This variable conditionally defines the PERL_PRIfldlbl symbol, which
indiciates that stdio has a symbol to print long doubles.
=item C<d_PRIEldbl>
From F<longdblfio.U>:
This variable conditionally defines the PERL_PRIfldlbl symbol, which
indiciates that stdio has a symbol to print long doubles.
=item C<d_PRIfldbl>
From F<longdblfio.U>:
This variable conditionally defines the PERL_PRIfldlbl symbol, which
indiciates that stdio has a symbol to print long doubles.
=item C<d_PRIFldbl>
From F<longdblfio.U>:
This variable conditionally defines the PERL_PRIfldlbl symbol, which
indiciates that stdio has a symbol to print long doubles.
=item C<d_PRIgldbl>
From F<longdblfio.U>:
This variable conditionally defines the PERL_PRIfldlbl symbol, which
indiciates that stdio has a symbol to print long doubles.
=item C<d_PRIGldbl>
From F<longdblfio.U>:
This variable conditionally defines the PERL_PRIfldlbl symbol, which
indiciates that stdio has a symbol to print long doubles.
=item C<d_PRIi64>
From F<quadfio.U>:
This variable conditionally defines the PERL_PRIi64 symbol, which
indiciates that stdio has a symbol to print 64-bit decimal numbers.
=item C<d_PRIo64>
From F<quadfio.U>:
This variable conditionally defines the PERL_PRIo64 symbol, which
indiciates that stdio has a symbol to print 64-bit octal numbers.
=item C<d_PRIu64>
From F<quadfio.U>:
This variable conditionally defines the PERL_PRIu64 symbol, which
indiciates that stdio has a symbol to print 64-bit unsigned decimal
numbers.
=item C<d_PRIx64>
From F<quadfio.U>:
This variable conditionally defines the PERL_PRIx64 symbol, which
indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
=item C<d_PRIX64>
From F<quadfio.U>:
This variable conditionally defines the PERL_PRIX64 symbol, which
indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
=item C<d_pthread_yield>
From F<d_pthread_y.U>:
This variable conditionally defines the C<HAS_PTHREAD_YIELD>
symbol if the pthread_yield routine is available to yield
the execution of the current thread.
=item C<d_pwage>
From F<i_pwd.U>:
This variable conditionally defines C<PWAGE>, which indicates
that struct passwd contains pw_age.
=item C<d_pwchange>
From F<i_pwd.U>:
This variable conditionally defines C<PWCHANGE>, which indicates
that struct passwd contains pw_change.
=item C<d_pwclass>
From F<i_pwd.U>:
This variable conditionally defines C<PWCLASS>, which indicates
that struct passwd contains pw_class.
=item C<d_pwcomment>
From F<i_pwd.U>:
This variable conditionally defines C<PWCOMMENT>, which indicates
that struct passwd contains pw_comment.
=item C<d_pwexpire>
From F<i_pwd.U>:
This variable conditionally defines C<PWEXPIRE>, which indicates
that struct passwd contains pw_expire.
=item C<d_pwgecos>
From F<i_pwd.U>:
This variable conditionally defines C<PWGECOS>, which indicates
that struct passwd contains pw_gecos.
=item C<d_pwpasswd>
From F<i_pwd.U>:
This variable conditionally defines C<PWPASSWD>, which indicates
that struct passwd contains pw_passwd.
=item C<d_pwquota>
From F<i_pwd.U>:
This variable conditionally defines C<PWQUOTA>, which indicates
that struct passwd contains pw_quota.
=item C<d_qgcvt>
From F<d_qgcvt.U>:
This variable conditionally defines the C<HAS_QGCVT> symbol, which
indicates to the C program that the qgcvt() routine is available.
=item C<d_quad>
From F<quadtype.U>:
This variable, if defined, tells that there's a 64-bit integer type,
quadtype.
=item C<d_readdir>
From F<d_readdir.U>:
This variable conditionally defines C<HAS_READDIR> if readdir() is
available to read directory entries.
=item C<d_readlink>
From F<d_readlink.U>:
This variable conditionally defines the C<HAS_READLINK> symbol, which
indicates to the C program that the readlink() routine is available
to read the value of a symbolic link.
=item C<d_rename>
From F<d_rename.U>:
This variable conditionally defines the C<HAS_RENAME> symbol, which
indicates to the C program that the rename() routine is available
to rename files.
=item C<d_rewinddir>
From F<d_readdir.U>:
This variable conditionally defines C<HAS_REWINDDIR> if rewinddir() is
available.
=item C<d_rmdir>
From F<d_rmdir.U>:
This variable conditionally defines C<HAS_RMDIR> if rmdir() is
available to remove directories.
=item C<d_safebcpy>
From F<d_safebcpy.U>:
This variable conditionally defines the C<HAS_SAFE_BCOPY> symbol if
the bcopy() routine can do overlapping copies.
=item C<d_safemcpy>
From F<d_safemcpy.U>:
This variable conditionally defines the C<HAS_SAFE_MEMCPY> symbol if
the memcpy() routine can do overlapping copies.
=item C<d_sanemcmp>
From F<d_sanemcmp.U>:
This variable conditionally defines the C<HAS_SANE_MEMCMP> symbol if
the memcpy() routine is available and can be used to compare relative
magnitudes of chars with their high bits set.
=item C<d_sched_yield>
From F<d_pthread_y.U>:
This variable conditionally defines the C<HAS_SCHED_YIELD>
symbol if the sched_yield routine is available to yield
the execution of the current thread.
=item C<d_scm_rights>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_SCM_RIGHTS> symbol,
which indicates that the C<SCM_RIGHTS> is available. #ifdef is
not enough because it may be an enum, glibc has been known to do this.
=item C<d_seekdir>
From F<d_readdir.U>:
This variable conditionally defines C<HAS_SEEKDIR> if seekdir() is
available.
=item C<d_select>
From F<d_select.U>:
This variable conditionally defines C<HAS_SELECT> if select() is
available to select active file descriptors. A <sys/time.h>
inclusion may be necessary for the timeout field.
=item C<d_sem>
From F<d_sem.U>:
This variable conditionally defines the C<HAS_SEM> symbol, which
indicates that the entire sem*(2) library is present.
=item C<d_semctl>
From F<d_semctl.U>:
This variable conditionally defines the C<HAS_SEMCTL> symbol, which
indicates to the C program that the semctl() routine is available.
=item C<d_semctl_semid_ds>
From F<d_union_semun.U>:
This variable conditionally defines C<USE_SEMCTL_SEMID_DS>, which
indicates that struct semid_ds * is to be used for semctl C<IPC_STAT>.
=item C<d_semctl_semun>
From F<d_union_semun.U>:
This variable conditionally defines C<USE_SEMCTL_SEMUN>, which
indicates that union semun is to be used for semctl C<IPC_STAT>.
=item C<d_semget>
From F<d_semget.U>:
This variable conditionally defines the C<HAS_SEMGET> symbol, which
indicates to the C program that the semget() routine is available.
=item C<d_semop>
From F<d_semop.U>:
This variable conditionally defines the C<HAS_SEMOP> symbol, which
indicates to the C program that the semop() routine is available.
=item C<d_setegid>
From F<d_setegid.U>:
This variable conditionally defines the C<HAS_SETEGID> symbol, which
indicates to the C program that the setegid() routine is available
to change the effective gid of the current program.
=item C<d_seteuid>
From F<d_seteuid.U>:
This variable conditionally defines the C<HAS_SETEUID> symbol, which
indicates to the C program that the seteuid() routine is available
to change the effective uid of the current program.
=item C<d_setgrent>
From F<d_setgrent.U>:
This variable conditionally defines the C<HAS_SETGRENT> symbol, which
indicates to the C program that the setgrent() routine is available
for initializing sequential access to the group database.
=item C<d_setgrps>
From F<d_setgrps.U>:
This variable conditionally defines the C<HAS_SETGROUPS> symbol, which
indicates to the C program that the setgroups() routine is available
to set the list of process groups.
=item C<d_sethent>
From F<d_sethent.U>:
This variable conditionally defines C<HAS_SETHOSTENT> if sethostent() is
available.
=item C<d_setlinebuf>
From F<d_setlnbuf.U>:
This variable conditionally defines the C<HAS_SETLINEBUF> symbol, which
indicates to the C program that the setlinebuf() routine is available
to change stderr or stdout from block-buffered or unbuffered to a
line-buffered mode.
=item C<d_setlocale>
From F<d_setlocale.U>:
This variable conditionally defines C<HAS_SETLOCALE> if setlocale() is
available to handle locale-specific ctype implementations.
=item C<d_setnent>
From F<d_setnent.U>:
This variable conditionally defines C<HAS_SETNETENT> if setnetent() is
available.
=item C<d_setpent>
From F<d_setpent.U>:
This variable conditionally defines C<HAS_SETPROTOENT> if setprotoent() is
available.
=item C<d_setpgid>
From F<d_setpgid.U>:
This variable conditionally defines the C<HAS_SETPGID> symbol if the
setpgid(pid, gpid) function is available to set process group C<ID>.
=item C<d_setpgrp2>
From F<d_setpgrp2.U>:
This variable conditionally defines the HAS_SETPGRP2 symbol, which
indicates to the C program that the setpgrp2() (as in F<DG/C<UX>>) routine
is available to set the current process group.
=item C<d_setpgrp>
From F<d_setpgrp.U>:
This variable conditionally defines C<HAS_SETPGRP> if setpgrp() is
available to set the current process group.
=item C<d_setprior>
From F<d_setprior.U>:
This variable conditionally defines C<HAS_SETPRIORITY> if setpriority()
is available to set a process's priority.
=item C<d_setpwent>
From F<d_setpwent.U>:
This variable conditionally defines the C<HAS_SETPWENT> symbol, which
indicates to the C program that the setpwent() routine is available
for initializing sequential access to the passwd database.
=item C<d_setregid>
From F<d_setregid.U>:
This variable conditionally defines C<HAS_SETREGID> if setregid() is
available to change the real and effective gid of the current
process.
=item C<d_setresgid>
From F<d_setregid.U>:
This variable conditionally defines C<HAS_SETRESGID> if setresgid() is
available to change the real, effective and saved gid of the current
process.
=item C<d_setresuid>
From F<d_setreuid.U>:
This variable conditionally defines C<HAS_SETREUID> if setresuid() is
available to change the real, effective and saved uid of the current
process.
=item C<d_setreuid>
From F<d_setreuid.U>:
This variable conditionally defines C<HAS_SETREUID> if setreuid() is
available to change the real and effective uid of the current
process.
=item C<d_setrgid>
From F<d_setrgid.U>:
This variable conditionally defines the C<HAS_SETRGID> symbol, which
indicates to the C program that the setrgid() routine is available
to change the real gid of the current program.
=item C<d_setruid>
From F<d_setruid.U>:
This variable conditionally defines the C<HAS_SETRUID> symbol, which
indicates to the C program that the setruid() routine is available
to change the real uid of the current program.
=item C<d_setsent>
From F<d_setsent.U>:
This variable conditionally defines C<HAS_SETSERVENT> if setservent() is
available.
=item C<d_setsid>
From F<d_setsid.U>:
This variable conditionally defines C<HAS_SETSID> if setsid() is
available to set the process group C<ID>.
=item C<d_setspent>
From F<d_setspent.U>:
This variable conditionally defines C<HAS_SETSPENT> if setspent() is
available to initialize the scan of SysV shadow password entries.
=item C<d_setvbuf>
From F<d_setvbuf.U>:
This variable conditionally defines the C<HAS_SETVBUF> symbol, which
indicates to the C program that the setvbuf() routine is available
to change buffering on an open stdio stream.
=item C<d_sfio>
From F<d_sfio.U>:
This variable conditionally defines the C<USE_SFIO> symbol,
and indicates whether sfio is available (and should be used).
=item C<d_shm>
From F<d_shm.U>:
This variable conditionally defines the C<HAS_SHM> symbol, which
indicates that the entire shm*(2) library is present.
=item C<d_shmat>
From F<d_shmat.U>:
This variable conditionally defines the C<HAS_SHMAT> symbol, which
indicates to the C program that the shmat() routine is available.
=item C<d_shmatprototype>
From F<d_shmat.U>:
This variable conditionally defines the C<HAS_SHMAT_PROTOTYPE>
symbol, which indicates that F<sys/shm.h> has a prototype for
shmat.
=item C<d_shmctl>
From F<d_shmctl.U>:
This variable conditionally defines the C<HAS_SHMCTL> symbol, which
indicates to the C program that the shmctl() routine is available.
=item C<d_shmdt>
From F<d_shmdt.U>:
This variable conditionally defines the C<HAS_SHMDT> symbol, which
indicates to the C program that the shmdt() routine is available.
=item C<d_shmget>
From F<d_shmget.U>:
This variable conditionally defines the C<HAS_SHMGET> symbol, which
indicates to the C program that the shmget() routine is available.
=item C<d_sigaction>
From F<d_sigaction.U>:
This variable conditionally defines the C<HAS_SIGACTION> symbol, which
indicates that the Vr4 sigaction() routine is available.
=item C<d_sigsetjmp>
From F<d_sigsetjmp.U>:
This variable conditionally defines the C<HAS_SIGSETJMP> symbol,
which indicates that the sigsetjmp() routine is available to
call setjmp() and optionally save the process's signal mask.
=item C<d_socket>
From F<d_socket.U>:
This variable conditionally defines C<HAS_SOCKET>, which indicates
that the C<BSD> socket interface is supported.
=item C<d_socklen_t>
From F<d_socklen_t.U>:
This symbol will be defined if the C compiler supports socklen_t.
=item C<d_sockpair>
From F<d_socket.U>:
This variable conditionally defines the C<HAS_SOCKETPAIR> symbol, which
indicates that the C<BSD> socketpair() is supported.
=item C<d_sqrtl>
From F<d_sqrtl.U>:
This variable conditionally defines the C<HAS_SQRTL> symbol, which
indicates to the C program that the sqrtl() routine is available.
=item C<d_statblks>
From F<d_statblks.U>:
This variable conditionally defines C<USE_STAT_BLOCKS>
if this system has a stat structure declaring
st_blksize and st_blocks.
=item C<d_statfs_f_flags>
From F<d_statfs_f_flags.U>:
This variable conditionally defines the C<HAS_STRUCT_STATFS_F_FLAGS>
symbol, which indicates to struct statfs from has f_flags member.
This kind of struct statfs is coming from F<sys/mount.h> (C<BSD>),
not from F<sys/statfs.h> (C<SYSV>).
=item C<d_statfs_s>
From F<d_statfs_s.U>:
This variable conditionally defines the C<HAS_STRUCT_STATFS> symbol,
which indicates that the struct statfs is supported.
=item C<d_statvfs>
From F<d_statvfs.U>:
This variable conditionally defines the C<HAS_STATVFS> symbol, which
indicates to the C program that the statvfs() routine is available.
=item C<d_stdio_cnt_lval>
From F<d_stdstdio.U>:
This variable conditionally defines C<STDIO_CNT_LVALUE> if the
C<FILE_cnt> macro can be used as an lvalue.
=item C<d_stdio_ptr_lval>
From F<d_stdstdio.U>:
This variable conditionally defines C<STDIO_PTR_LVALUE> if the
C<FILE_ptr> macro can be used as an lvalue.
=item C<d_stdio_stream_array>
From F<stdio_streams.U>:
This variable tells whether there is an array holding
the stdio streams.
=item C<d_stdiobase>
From F<d_stdstdio.U>:
This variable conditionally defines C<USE_STDIO_BASE> if this system
has a C<FILE> structure declaring a usable _base field (or equivalent)
in F<stdio.h>.
=item C<d_stdstdio>
From F<d_stdstdio.U>:
This variable conditionally defines C<USE_STDIO_PTR> if this system
has a C<FILE> structure declaring usable _ptr and _cnt fields (or
equivalent) in F<stdio.h>.
=item C<d_strchr>
From F<d_strchr.U>:
This variable conditionally defines C<HAS_STRCHR> if strchr() and
strrchr() are available for string searching.
=item C<d_strcoll>
From F<d_strcoll.U>:
This variable conditionally defines C<HAS_STRCOLL> if strcoll() is
available to compare strings using collating information.
=item C<d_strctcpy>
From F<d_strctcpy.U>:
This variable conditionally defines the C<USE_STRUCT_COPY> symbol, which
indicates to the C program that this C compiler knows how to copy
structures.
=item C<d_strerrm>
From F<d_strerror.U>:
This variable holds what Strerrr is defined as to translate an error
code condition into an error message string. It could be C<strerror>
or a more C<complex> macro emulating strrror with sys_errlist[], or the
C<unknown> string when both strerror and sys_errlist are missing.
=item C<d_strerror>
From F<d_strerror.U>:
This variable conditionally defines C<HAS_STRERROR> if strerror() is
available to translate error numbers to strings.
=item C<d_strtod>
From F<d_strtod.U>:
This variable conditionally defines the C<HAS_STRTOD> symbol, which
indicates to the C program that the strtod() routine is available
to provide better numeric string conversion than atof().
=item C<d_strtol>
From F<d_strtol.U>:
This variable conditionally defines the C<HAS_STRTOL> symbol, which
indicates to the C program that the strtol() routine is available
to provide better numeric string conversion than atoi() and friends.
=item C<d_strtold>
From F<d_strtold.U>:
This variable conditionally defines the C<HAS_STRTOLD> symbol, which
indicates to the C program that the strtold() routine is available.
=item C<d_strtoll>
From F<d_strtoll.U>:
This variable conditionally defines the C<HAS_STRTOLL> symbol, which
indicates to the C program that the strtoll() routine is available.
=item C<d_strtoul>
From F<d_strtoul.U>:
This variable conditionally defines the C<HAS_STRTOUL> symbol, which
indicates to the C program that the strtoul() routine is available
to provide conversion of strings to unsigned long.
=item C<d_strtoull>
From F<d_strtoull.U>:
This variable conditionally defines the C<HAS_STRTOULL> symbol, which
indicates to the C program that the strtoull() routine is available.
=item C<d_strtouq>
From F<d_strtouq.U>:
This variable conditionally defines the C<HAS_STRTOUQ> symbol, which
indicates to the C program that the strtouq() routine is available.
=item C<d_strxfrm>
From F<d_strxfrm.U>:
This variable conditionally defines C<HAS_STRXFRM> if strxfrm() is
available to transform strings.
=item C<d_suidsafe>
From F<d_dosuid.U>:
This variable conditionally defines C<SETUID_SCRIPTS_ARE_SECURE_NOW>
if setuid scripts can be secure. This test looks in F</dev/fd/>.
=item C<d_symlink>
From F<d_symlink.U>:
This variable conditionally defines the C<HAS_SYMLINK> symbol, which
indicates to the C program that the symlink() routine is available
to create symbolic links.
=item C<d_syscall>
From F<d_syscall.U>:
This variable conditionally defines C<HAS_SYSCALL> if syscall() is
available call arbitrary system calls.
=item C<d_sysconf>
From F<d_sysconf.U>:
This variable conditionally defines the C<HAS_SYSCONF> symbol, which
indicates to the C program that the sysconf() routine is available
to determine system related limits and options.
=item C<d_sysernlst>
From F<d_strerror.U>:
This variable conditionally defines C<HAS_SYS_ERRNOLIST> if sys_errnolist[]
is available to translate error numbers to the symbolic name.
=item C<d_syserrlst>
From F<d_strerror.U>:
This variable conditionally defines C<HAS_SYS_ERRLIST> if sys_errlist[] is
available to translate error numbers to strings.
=item C<d_system>
From F<d_system.U>:
This variable conditionally defines C<HAS_SYSTEM> if system() is
available to issue a shell command.
=item C<d_tcgetpgrp>
From F<d_tcgtpgrp.U>:
This variable conditionally defines the C<HAS_TCGETPGRP> symbol, which
indicates to the C program that the tcgetpgrp() routine is available.
to get foreground process group C<ID>.
=item C<d_tcsetpgrp>
From F<d_tcstpgrp.U>:
This variable conditionally defines the C<HAS_TCSETPGRP> symbol, which
indicates to the C program that the tcsetpgrp() routine is available
to set foreground process group C<ID>.
=item C<d_telldir>
From F<d_readdir.U>:
This variable conditionally defines C<HAS_TELLDIR> if telldir() is
available.
=item C<d_telldirproto>
From F<d_telldirproto.U>:
This variable conditionally defines the C<HAS_TELLDIR_PROTO> symbol,
which indicates to the C program that the system provides
a prototype for the telldir() function. Otherwise, it is
up to the program to supply one.
=item C<d_time>
From F<d_time.U>:
This variable conditionally defines the C<HAS_TIME> symbol, which indicates
that the time() routine exists. The time() routine is normaly
provided on C<UNIX> systems.
=item C<d_times>
From F<d_times.U>:
This variable conditionally defines the C<HAS_TIMES> symbol, which indicates
that the times() routine exists. The times() routine is normaly
provided on C<UNIX> systems. You may have to include <sys/times.h>.
=item C<d_truncate>
From F<d_truncate.U>:
This variable conditionally defines C<HAS_TRUNCATE> if truncate() is
available to truncate files.
=item C<d_tzname>
From F<d_tzname.U>:
This variable conditionally defines C<HAS_TZNAME> if tzname[] is
available to access timezone names.
=item C<d_umask>
From F<d_umask.U>:
This variable conditionally defines the C<HAS_UMASK> symbol, which
indicates to the C program that the umask() routine is available.
to set and get the value of the file creation mask.
=item C<d_uname>
From F<d_gethname.U>:
This variable conditionally defines the C<HAS_UNAME> symbol, which
indicates to the C program that the uname() routine may be
used to derive the host name.
=item C<d_union_semun>
From F<d_union_semun.U>:
This variable conditionally defines C<HAS_UNION_SEMUN> if the
union semun is defined by including <sys/sem.h>.
=item C<d_ustat>
From F<d_ustat.U>:
This variable conditionally defines C<HAS_USTAT> if ustat() is
available to query file system statistics by dev_t.
=item C<d_vendorarch>
From F<vendorarch.U>:
This variable conditionally defined C<PERL_VENDORARCH>.
=item C<d_vendorbin>
From F<vendorbin.U>:
This variable conditionally defines C<PERL_VENDORBIN>.
=item C<d_vendorlib>
From F<vendorlib.U>:
This variable conditionally defines C<PERL_VENDORLIB>.
=item C<d_vfork>
From F<d_vfork.U>:
This variable conditionally defines the C<HAS_VFORK> symbol, which
indicates the vfork() routine is available.
=item C<d_void_closedir>
From F<d_closedir.U>:
This variable conditionally defines C<VOID_CLOSEDIR> if closedir()
does not return a value.
=item C<d_voidsig>
From F<d_voidsig.U>:
This variable conditionally defines C<VOIDSIG> if this system
declares "void (*signal(...))()" in F<signal.h>. The old way was to
declare it as "int (*signal(...))()".
=item C<d_voidtty>
From F<i_sysioctl.U>:
This variable conditionally defines C<USE_IOCNOTTY> to indicate that the
ioctl() call with C<TIOCNOTTY> should be used to void tty association.
Otherwise (on C<USG> probably), it is enough to close the standard file
decriptors and do a setpgrp().
=item C<d_volatile>
From F<d_volatile.U>:
This variable conditionally defines the C<HASVOLATILE> symbol, which
indicates to the C program that this C compiler knows about the
volatile declaration.
=item C<d_vprintf>
From F<d_vprintf.U>:
This variable conditionally defines the C<HAS_VPRINTF> symbol, which
indicates to the C program that the vprintf() routine is available
to printf with a pointer to an argument list.
=item C<d_wait4>
From F<d_wait4.U>:
This variable conditionally defines the HAS_WAIT4 symbol, which
indicates the wait4() routine is available.
=item C<d_waitpid>
From F<d_waitpid.U>:
This variable conditionally defines C<HAS_WAITPID> if waitpid() is
available to wait for child process.
=item C<d_wcstombs>
From F<d_wcstombs.U>:
This variable conditionally defines the C<HAS_WCSTOMBS> symbol, which
indicates to the C program that the wcstombs() routine is available
to convert wide character strings to multibyte strings.
=item C<d_wctomb>
From F<d_wctomb.U>:
This variable conditionally defines the C<HAS_WCTOMB> symbol, which
indicates to the C program that the wctomb() routine is available
to convert a wide character to a multibyte.
=item C<d_xenix>
From F<Guess.U>:
This variable conditionally defines the symbol C<XENIX>, which alerts
the C program that it runs under Xenix.
=item C<date>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the date program. After Configure runs,
the value is reset to a plain C<date> and is not useful.
=item C<db_hashtype>
From F<i_db.U>:
This variable contains the type of the hash structure element
in the <db.h> header file. In older versions of C<DB>, it was
int, while in newer ones it is u_int32_t.
=item C<db_prefixtype>
From F<i_db.U>:
This variable contains the type of the prefix structure element
in the <db.h> header file. In older versions of C<DB>, it was
int, while in newer ones it is size_t.
=item C<defvoidused>
From F<voidflags.U>:
This variable contains the default value of the C<VOIDUSED> symbol (15).
=item C<direntrytype>
From F<i_dirent.U>:
This symbol is set to C<struct direct> or C<struct dirent> depending on
whether dirent is available or not. You should use this pseudo type to
portably declare your directory entries.
=item C<dlext>
From F<dlext.U>:
This variable contains the extension that is to be used for the
dynamically loaded modules that perl generaties.
=item C<dlsrc>
From F<dlsrc.U>:
This variable contains the name of the dynamic loading file that
will be used with the package.
=item C<doublesize>
From F<doublesize.U>:
This variable contains the value of the C<DOUBLESIZE> symbol, which
indicates to the C program how many bytes there are in a double.
=item C<drand01>
From F<randfunc.U>:
Indicates the macro to be used to generate normalized
random numbers. Uses randfunc, often divided by
(double) (((unsigned long) 1 << randbits)) in order to
normalize the result.
In C programs, the macro C<Drand01> is mapped to drand01.
=item C<dynamic_ext>
From F<Extensions.U>:
This variable holds a list of C<XS> extension files we want to
link dynamically into the package. It is used by Makefile.
=back
=head2 e
=over
=item C<eagain>
From F<nblock_io.U>:
This variable bears the symbolic errno code set by read() when no
data is present on the file and non-blocking F<I/O> was enabled (otherwise,
read() blocks naturally).
=item C<ebcdic>
From F<ebcdic.U>:
This variable conditionally defines C<EBCDIC> if this
system uses C<EBCDIC> encoding. Among other things, this
means that the character ranges are not contiguous.
See F<trnl.U>
=item C<echo>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the echo program. After Configure runs,
the value is reset to a plain C<echo> and is not useful.
=item C<egrep>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the egrep program. After Configure runs,
the value is reset to a plain C<egrep> and is not useful.
=item C<emacs>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<eunicefix>
From F<Init.U>:
When running under Eunice this variable contains a command which will
convert a shell script to the proper form of text file for it to be
executable by the shell. On other systems it is a no-op.
=item C<exe_ext>
From F<Unix.U>:
This is an old synonym for _exe.
=item C<expr>
From F<Loc.U>:
This variable is used internally by Configure to determine the
full pathname (if any) of the expr program. After Configure runs,
the value is reset to a plain C<expr> and is not useful.
=item C<extensions>
From F<Extensions.U>:
This variable holds a list of all extension files (both C<XS> and
non-xs linked into the package. It is propagated to F<Config.pm>
and is typically used to test whether a particular extesion
is available.
=back
=head2 f
=over
=item C<fflushall>
From F<fflushall.U>:
This symbol, if defined, tells that to flush
all pending stdio output one must loop through all
the stdio file handles stored in an array and fflush them.
Note that if fflushNULL is defined, fflushall will not
even be probed for and will be left undefined.
=item C<fflushNULL>
From F<fflushall.U>:
This symbol, if defined, tells that fflush(C<NULL>) does flush
all pending stdio output.
=item C<find>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<firstmakefile>
From F<Unix.U>:
This variable defines the first file searched by make. On unix,
it is makefile (then Makefile). On case-insensitive systems,
it might be something else. This is only used to deal with
convoluted make depend tricks.
=item C<flex>
From F<Loc.U>:
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
=item C<fpossize>
From F<fpossize.U>:
This variable contains the size of a fpostype in bytes.
=item C<fpostype>
From F<fpostype.U>:
This variable defines Fpos_t to be something like fpos_t, long,
uint, or whatever type is used to declare file positions in libc.
=item C<freetype>
From F<mallocsrc.U>:
This variable contains the return type of free(). It is usually
void, but occasionally int.
=item C<full_ar>
From F<Loc_ar.U>:
This variable contains the full pathname to C<ar>, whether or
not the user has specified C<portability>. This is only used
in the F<Makefile.SH>.
=item C<full_csh>
From F<d_csh.U>:
This variable contains the full pathname to C<csh>, whether or
not the user has specified C<portability>. This is only used
in the compiled C program, and we assume that all systems which
can share this executable will have the same full pathname to
F<csh.>
=item C<full_sed>