/
configure.in
2043 lines (1900 loc) · 55.5 KB
/
configure.in
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dnl Process this file with autoconf to produce a configure script.
AC_INIT()
AC_PREREQ(2.60)
AC_ARG_WITH(baseruby,
[ --with-baseruby=RUBY use RUBY as baseruby; RUBY is the pathname of ruby],
[
case "$withval" in
*ruby*)
BASERUBY=$withval
;;
*)
AC_MSG_ERROR(need ruby)
;;
esac
],
[
BASERUBY="ruby"
])
test "`$BASERUBY -e 'p 42' 2>/dev/null`" = 42 ||
BASERUBY="echo executable host ruby is required. use --with-baseruby option.; false"
AC_SUBST(BASERUBY)
AC_DEFUN([RUBY_MINGW32],
[case "$host_os" in
cygwin*)
AC_CACHE_CHECK(for mingw32 environment, rb_cv_mingw32,
[AC_TRY_CPP([
#ifndef __MINGW32__
# error
#endif
], rb_cv_mingw32=yes,rb_cv_mingw32=no)
rm -f conftest*])
test "$rb_cv_mingw32" = yes && target_os="mingw32"
;;
esac])
AC_DEFUN([RUBY_CPPOUTFILE],
[AC_CACHE_CHECK(whether ${CPP} accepts -o, rb_cv_cppoutfile,
[cppflags=$CPPFLAGS
CPPFLAGS='-o conftest.i'
AC_TRY_CPP([], rb_cv_cppoutfile=yes, rb_cv_cppoutfile=no)
CPPFLAGS=$cppflags
rm -f conftest*])
if test "$rb_cv_cppoutfile" = yes; then
CPPOUTFILE='-o conftest.i'
elif test "$rb_cv_cppoutfile" = no; then
CPPOUTFILE='> conftest.i'
elif test -n "$rb_cv_cppoutfile"; then
CPPOUTFILE="$rb_cv_cppoutfile"
fi
AC_SUBST(CPPOUTFILE)])
AC_DEFUN([RUBY_PROG_GNU_LD],
[AC_CACHE_CHECK(whether the linker is GNU ld, rb_cv_prog_gnu_ld,
[if `$CC $CFLAGS $CPPFLAGS $LDFLAGS --print-prog-name=ld 2>&1` -v 2>&1 | grep "GNU ld" > /dev/null; then
rb_cv_prog_gnu_ld=yes
else
rb_cv_prog_gnu_ld=no
fi
])
GNU_LD=$rb_cv_prog_gnu_ld
AC_SUBST(GNU_LD)])
unset GREP_OPTIONS
rb_version=`grep RUBY_VERSION $srcdir/version.h`
MAJOR=`expr "$rb_version" : '#define RUBY_VERSION "\([0-9][0-9]*\)\.[0-9][0-9]*\.[0-9][0-9]*"'`
MINOR=`expr "$rb_version" : '#define RUBY_VERSION "[0-9][0-9]*\.\([0-9][0-9]*\)\.[0-9][0-9]*"'`
TEENY=`expr "$rb_version" : '#define RUBY_VERSION "[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\)"'`
if test "$MAJOR" = ""; then
AC_MSG_ERROR(could not determine MAJOR number from version.h)
fi
if test "$MINOR" = ""; then
AC_MSG_ERROR(could not determine MINOR number from version.h)
fi
if test "$TEENY" = ""; then
AC_MSG_ERROR(could not determine TEENY number from version.h)
fi
AC_SUBST(MAJOR)
AC_SUBST(MINOR)
AC_SUBST(TEENY)
dnl checks for alternative programs
AC_ARG_WITH(gcc, [ --without-gcc never use gcc], [
case $withval in
no) : ${CC=cc}
;;
yes) : ${CC=gcc}
;;
*) CC=$withval
;;
esac])
dnl If the user switches compilers, we can't believe the cache
if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
then
AC_MSG_ERROR(cached CC is different -- throw away $cache_file
(it is also a good idea to do 'make clean' before compiling))
fi
if test "$program_prefix" = NONE; then
program_prefix=
fi
AC_CANONICAL_TARGET
target_os=`echo $target_os | sed 's/linux-gnu$/linux/;s/linux-gnu/linux-/'`
ac_install_sh='' # unusable for extension libraries.
ifelse(currently,disabled, [
dnl checks for fat-binary
AC_ARG_ENABLE(fat-binary,
[ --enable-fat-binary=ARCHS
build an Apple/NeXT Multi Architecture Binary (MAB);
ARCHS is a comma-delimited list of architectures for
which to build; if ARCHS is omitted, then the package
will be built for all architectures supported by the
platform ("ppc" for MacOS/X and Darwin; "ppc,i386"
for Rhapsody; "m68k,i386,sparc" for OpenStep;
"m68k,i386,sparc,hppa" for NextStep); if this option
is disabled or omitted entirely, then the package
will be built only for the target platform],
[fat_binary=$enableval], [fat_binary=no])
if test "$fat_binary" != no; then
AC_MSG_CHECKING([target architectures])
# Respect TARGET_ARCHS setting from environment if available.
if test -z "$TARGET_ARCHS"; then
# Respect ARCH given to --enable-fat-binary if present.
if test "$fat_binary" != yes; then
TARGET_ARCHS=`echo "$fat_binary" | tr ',' ' '`
else
# Choose a default set of architectures based upon platform.
case "$target_os" in
darwin*)
TARGET_ARCHS="ppc"
;;
rhapsody*)
TARGET_ARCHS="ppc i386"
;;
openstep*)
TARGET_ARCHS="m68k i386 sparc"
;;
nextstep*)
TARGET_ARCHS="m68k i386 sparc hppa"
;;
*)
TARGET_ARCHS=`arch`
esac
fi
fi
AC_MSG_RESULT([$TARGET_ARCHS])
# /usr/lib/arch_tool -archify_list $TARGET_ARCHS
ARCH_FLAG=
for archs in $TARGET_ARCHS
do
ARCH_FLAG="$ARCH_FLAG -arch $archs"
done
AC_DEFINE(NEXT_FAT_BINARY)
fi
], [fat_binary=no])
case $target_cpu in
i?86) frame_address=yes;;
*) frame_address=no;;
esac
AC_ARG_ENABLE(frame-address,
[ --enable-frame-address use GCC __builtin_frame_address(). ],
[frame_address=$enableval])
if test $frame_address = yes; then
AC_DEFINE(USE_BUILTIN_FRAME_ADDRESS)
fi
AC_ARG_PROGRAM
dnl Checks for programs.
: ${CFLAGS=} ${cflags='${optflags} ${debugflags} ${warnflags}'}
: ${CXXFLAGS=} ${cxxflags='${optflags} ${debugflags} ${warnflags}'}
if test x"${build}" != x"${host}"; then
AC_CHECK_TOOL(CC, gcc)
fi
AC_PROG_CC
AC_PROG_CXX
AC_PROG_GCC_TRADITIONAL
test $ac_cv_prog_cc_g = yes && : ${debugflags=-g}
if test "$GCC" = yes; then
linker_flag=-Wl,
: ${optflags=-O2} ${warnflags="-Wall -Wno-parentheses"}
else
linker_flag=
fi
CFLAGS="${CFLAGS} `eval echo $cflags`"
CXXFLAGS="${CXXFLAGS} `eval echo $cxxflags`"
RUBY_PROG_GNU_LD
RUBY_CPPOUTFILE
: ${OUTFLAG='-o '}
: ${COUTFLAG=${OUTFLAG}}
AC_SUBST(OUTFLAG)
AC_SUBST(COUTFLAG)
RUBY_MINGW32
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(AR, ar)
if test -z "$AR"; then
AC_CHECK_PROGS(AR, aal, ar)
fi
AC_CHECK_TOOL(AS, as)
ASFLAGS=$ASFLAGS
AC_SUBST(ASFLAGS)
case "$target_os" in
cygwin*|mingw*)
AC_CHECK_TOOL(NM, nm)
AC_CHECK_TOOL(WINDRES, windres)
AC_CHECK_TOOL(DLLWRAP, dllwrap)
target_cpu=`echo $target_cpu | sed s/i.86/i386/`
case "$target_os" in
mingw*)
test "$rb_cv_msvcrt" = "" && unset rb_cv_msvcrt
AC_CHECK_TOOL(OBJDUMP, objdump)
AC_CACHE_CHECK(for mingw32 runtime DLL, rb_cv_msvcrt, [
AC_TRY_LINK([#include <stdio.h>],
[FILE* volatile f = stdin; return 0;],
[rb_cv_msvcrt=`$OBJDUMP -p conftest$ac_exeext |
tr A-Z a-z |
sed -n '/^[[ ]]*dll name: \(msvc.*\)\.dll$/{s//\1/p;q;}'`],
[rb_cv_msvcrt=msvcrt])
test "$rb_cv_msvcrt" = "" && rb_cv_msvcrt=msvcrt])
esac
: ${enable_shared=yes}
;;
aix*)
AC_CHECK_TOOL(NM, nm, /usr/ccs/bin/nm, /usr/ccs/bin:$PATH)
;;
hiuxmpp*)
# by TOYODA Eizi <toyoda@npd.kishou.go.jp>
AC_DEFINE(__HIUX_MPP__)
;;
esac
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_INSTALL
# checks for UNIX variants that set C preprocessor variables
AC_USE_SYSTEM_EXTENSIONS
AC_SUBST(RM, ['rm -f'])
AC_SUBST(CP, ['cp'])
if $as_mkdir_p; then
MAKEDIRS='mkdir -p'
else
MAKEDIRS='install -d'
fi
AC_SUBST(MAKEDIRS)
dnl check for large file stuff
mv confdefs.h confdefs1.h
: > confdefs.h
AC_SYS_LARGEFILE
mv confdefs.h largefile.h
mv confdefs1.h confdefs.h
cat largefile.h >> confdefs.h
case "$target_os" in
mingw*)
ac_cv_type_off_t=yes
ac_cv_sizeof_off_t=8
;;
esac
AC_CHECK_TYPES([long long, off_t])
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 0)
AC_CHECK_SIZEOF(__int64, 0)
AC_CHECK_SIZEOF(off_t, 0)
AC_CHECK_SIZEOF(void*, 4)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)
AC_CHECK_SIZEOF(time_t, 0)
dnl RUBY_REPLACE_TYPE [typename] [default type] [macro type] [included]
AC_DEFUN([RUBY_REPLACE_TYPE], [dnl
AC_CHECK_TYPE([$1],
[AC_DEFINE_UNQUOTED(rb_[$1], [$1])],
[AC_DEFINE_UNQUOTED(rb_[$1], [$2])],
[$4])
AC_CACHE_CHECK([for convertible type of [$1]], rb_cv_[$1]_convertible, [
u= t=
AC_COMPILE_IFELSE(
[AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT]
[$4], [(rb_[$1])-1 > 0])],
[u=U])
if test x"$t" = x; then
AC_COMPILE_IFELSE(
[AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT]
[$4], [sizeof(rb_[$1]) > sizeof(long)])],
[t=LL])
fi
if test x"$t" = x; then
AC_COMPILE_IFELSE(
[AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT]
[$4], [sizeof(rb_[$1]) == sizeof(long)])],
[t=LONG])
fi
if test x"$t" = x; then
t=INT
fi
rb_cv_[$1]_convertible=${u}${t}])
AC_DEFINE_UNQUOTED([$3]2NUM[(v)], [${rb_cv_[$1]_convertible}2NUM(v)])
AC_DEFINE_UNQUOTED(NUM2[$3][(v)], [NUM2${rb_cv_[$1]_convertible}(v)])
])
RUBY_REPLACE_TYPE(pid_t, int, PIDT)
RUBY_REPLACE_TYPE(uid_t, int, UIDT)
RUBY_REPLACE_TYPE(gid_t, int, GIDT)
AC_CACHE_CHECK(for prototypes, rb_cv_have_prototypes,
[AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],
rb_cv_have_prototypes=yes,
rb_cv_have_prototypes=no)])
if test "$rb_cv_have_prototypes" = yes; then
AC_DEFINE(HAVE_PROTOTYPES)
fi
AC_CACHE_CHECK(token paste string, rb_cv_tokenpaste,
[AC_TRY_COMPILE([#define paste(a,b) a##b],
[int xy = 1; return paste(x,y);],
rb_cv_tokenpaste=ansi,
rb_cv_tokenpaste=knr)])
if test "$rb_cv_tokenpaste" = ansi; then
AC_DEFINE(TOKEN_PASTE(x,y),[x##y])
else
AC_DEFINE(TOKEN_PASTE(x,y),[x/**/y])
fi
AC_CACHE_CHECK(stringization, rb_cv_stringization, [
rb_cv_stringization=no
for string in "#expr" '"expr"'; do
AC_COMPILE_IFELSE([
AC_LANG_BOOL_COMPILE_TRY([
#define STRINGIZE0(expr) $string
#define STRINGIZE(expr) STRINGIZE0(expr)
#undef real_test_for_stringization
#define test_for_stringization -.real_test_for_stringization.-
const char stringized[[]] = STRINGIZE(test_for_stringization);
], [sizeof(stringized) == 32])],
[rb_cv_stringization="$string"; break],
[rb_cv_stringization=no])
done]
)
AC_DEFINE(STRINGIZE(expr),STRINGIZE0(expr))
if test x"$rb_cv_stringization" != xno -a "$rb_cv_stringization" != "#expr"; then
AC_DEFINE_UNQUOTED(STRINGIZE0(expr),$rb_cv_stringization)
AC_DEFINE(OLD_FASHIONED_STRINGIZATION,1)
fi
AC_CACHE_CHECK([string literal concatenation],
rb_cv_string_literal_concatenation, [
AC_COMPILE_IFELSE([
AC_LANG_BOOL_COMPILE_TRY([
const char concatenated_literal[[]] = "literals" "to"
"be" "concatenated.";
], [sizeof(concatenated_literal) == 26])],
[rb_cv_string_literal_concatenation=yes],
[rb_cv_string_literal_concatenation=no])]
)
if test "$rb_cv_string_literal_concatenation" = no; then
AC_DEFINE(NO_STRING_LITERAL_CONCATENATION,1)
fi
AC_CACHE_CHECK(for variable length prototypes and stdarg.h, rb_cv_stdarg,
[AC_TRY_COMPILE([
#include <stdarg.h>
int foo(int x, ...) {
va_list va;
va_start(va, x);
va_arg(va, int);
va_arg(va, char *);
va_arg(va, double);
return 0;
}
], [return foo(10, "", 3.14);],
rb_cv_stdarg=yes,
rb_cv_stdarg=no)])
if test "$rb_cv_stdarg" = yes; then
AC_DEFINE(HAVE_STDARG_PROTOTYPES)
fi
AC_CACHE_CHECK(for variable length macro, rb_cv_va_args_macro,
[AC_TRY_COMPILE([@%:@define FOO(a, ...) foo(a, @%:@@%:@__VA_ARGS__)],
[FOO(1);FOO(1,2);FOO(1,2,3);],
rb_cv_va_args_macro=yes,
rb_cv_va_args_macro=no)])
if test "$rb_cv_va_args_macro" = yes; then
AC_DEFINE(HAVE_VA_ARGS_MACRO)
fi
AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
m4_ifval([$2], dnl
[AS_VAR_PUSHDEF([attrib],[$2])], dnl
[AS_VAR_PUSHDEF([attrib],[FUNC_]AS_TR_CPP($1))] dnl
)dnl
m4_ifval([$3], dnl
[AS_VAR_PUSHDEF([rbcv],[$3])], dnl
[AS_VAR_PUSHDEF([rbcv],[rb_cv_func_][$1])]dnl
)dnl
AC_CACHE_CHECK(for [$1] function attribute, rbcv,
[rbcv=x
if test "${ac_c_werror_flag+set}"; then
rb_c_werror_flag="$ac_c_werror_flag"
else
unset rb_c_werror_flag
fi
ac_c_werror_flag=yes
for mac in "__attribute__ (($1)) x" "x __attribute__ (($1))" "__declspec($1) x" x; do
AC_TRY_COMPILE(
[#define ]attrib[(x) $mac
]attrib[(void conftest_attribute_check(void));], [],
[rbcv="$mac"; break])
done
if test "${rb_c_werror_flag+set}"; then
ac_c_werror_flag="$rb_c_werror_flag"
else
unset ac_c_werror_flag
fi
])
AC_DEFINE_UNQUOTED(attrib[(x)], $rbcv)
AS_VAR_POPDEF([attrib])
AS_VAR_POPDEF([rbcv])
])
RUBY_FUNC_ATTRIBUTE(noreturn, NORETURN)
RUBY_FUNC_ATTRIBUTE(deprecated, DEPRECATED)
RUBY_FUNC_ATTRIBUTE(noinline, NOINLINE)
RUBY_FUNC_ATTRIBUTE(stdcall)
RUBY_FUNC_ATTRIBUTE(cdecl)
RUBY_FUNC_ATTRIBUTE(fastcall)
AC_CACHE_CHECK([for RUBY_EXTERN], rb_cv_ruby_extern,
[rb_cv_ruby_extern=no
for mac in "__attribute__((dllimport))" "__declspec(dllimport)"; do
AC_TRY_COMPILE(
[extern $mac void conftest(void);],
[rb_cv_ruby_extern="extern $mac"; break])
done])
test "x$rb_cv_ruby_extern" = xno || AC_DEFINE_UNQUOTED(RUBY_EXTERN, $rb_cv_ruby_extern)
XCFLAGS="$XCFLAGS -DRUBY_EXPORT"
dnl Check whether we need to define sys_nerr locally
AC_CHECK_DECLS([sys_nerr], [], [], [$ac_includes_default
#include <errno.h>])
case "$target_os" in
freebsd*)
AC_CACHE_CHECK([whether pthread should be enabled by default],
rb_cv_enable_pthread_default,
[AC_TRY_CPP([
#include <osreldate.h>
#if __FreeBSD_version < 502102
#error pthread should be disabled on this platform
#endif
],
rb_cv_enable_pthread_default=yes,
rb_cv_enable_pthread_default=no)])
enable_pthread_default=$rb_cv_enable_pthread_default
;;
mingw*)
enable_pthread_default=no
;;
*)
enable_pthread_default=yes
;;
esac
AC_ARG_ENABLE(pthread,
[ --enable-pthread use pthread library.],
[enable_pthread=$enableval], [enable_pthread=$enable_pthread_default])
dnl Checks for libraries.
case "$target_os" in
nextstep*) ;;
openstep*) ;;
rhapsody*) ;;
darwin*) LIBS="-lobjc $LIBS"
CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE"
AC_TRY_CPP([#include <AvailabilityMacros.h>
#if MAC_OS_X_VERSION_MAX_ALLOWED <= 1040
#error pre OS X 10.4
[!<===== pre OS X 10.4 =====>]
#endif
],
[
test "x$target_cpu" = xppc && ac_cv_header_ucontext_h=no
],
[
AC_DEFINE(BROKEN_SETREUID, 1)
AC_DEFINE(BROKEN_SETREGID, 1)
])
;;
hpux*) LIBS="-lm $LIBS"
ac_cv_c_inline=no;;
human*) ac_cv_func_getpgrp_void=yes
ac_cv_func_setitimer=no
;;
beos*) ac_cv_func_link=no;;
cygwin*) ;;
mingw*) LIBS="-lshell32 -lws2_32 $LIBS"
ac_cv_header_a_out_h=no
ac_cv_header_pwd_h=no
ac_cv_header_utime_h=no
ac_cv_header_sys_ioctl_h=no
ac_cv_header_sys_param_h=no
ac_cv_header_sys_resource_h=no
ac_cv_header_sys_select_h=no
ac_cv_header_sys_time_h=no
ac_cv_header_sys_times_h=no
ac_cv_func_times=yes
ac_cv_func_waitpid=yes
ac_cv_func_fsync=yes
ac_cv_func_snprintf=yes
ac_cv_func_vsnprintf=yes
ac_cv_func_seekdir=yes
ac_cv_func_telldir=yes
ac_cv_func_isinf=yes
ac_cv_func_isnan=yes
ac_cv_func_finite=yes
ac_cv_func_link=yes
ac_cv_func_truncate=yes
ac_cv_func_fseeko=yes
ac_cv_func_ftello=yes
ac_cv_lib_crypt_crypt=no
ac_cv_func_getpgrp_void=no
ac_cv_func_setpgrp_void=yes
ac_cv_func_memcmp_working=yes
ac_cv_lib_dl_dlopen=no
rb_cv_binary_elf=no
rb_cv_negative_time_t=no
ac_cv_func_fcntl=yes
;;
os2-emx*) LIBS="-lm $LIBS"
ac_cv_lib_dir_opendir=no;;
msdosdjgpp*) LIBS="-lm $LIBS"
ac_cv_func_getpgrp_void=yes
ac_cv_func_setitimer=no
ac_cv_sizeof_rlim_t=4
ac_cv_func_fork=no
ac_cv_func_setrlimit=no
;;
bsdi*) LIBS="-lm $LIBS"
AC_DEFINE(BROKEN_SETREUID, 1)
AC_DEFINE(BROKEN_SETREGID, 1)
ac_cv_sizeof_rlim_t=8;;
freebsd*) LIBS="-lm $LIBS"
AC_CACHE_CHECK([whether -lxpg4 has to be linked],
rb_cv_lib_xpg4_needed,
[AC_TRY_CPP([
#include <osreldate.h>
#if __FreeBSD_version < 400020 || \
(__FreeBSD_version >= 500000 && __FreeBSD_version < 500005)
#error needs libxpg4
#endif
],
rb_cv_lib_xpg4_needed=no,
rb_cv_lib_xpg4_needed=yes,
rb_cv_lib_xpg4_needed=yes)])
if test "$rb_cv_lib_xpg4_needed" = yes; then
AC_CHECK_LIB(xpg4, setlocale)
fi
;;
dragonfly*) LIBS="-lm $LIBS"
;;
bow) ac_cv_func_setitimer=no
;;
superux*) ac_cv_func_setitimer=no
;;
*) LIBS="-lm $LIBS";;
esac
AC_CHECK_LIB(crypt, crypt)
AC_CHECK_LIB(dl, dlopen) # Dynamic linking for SunOS/Solaris and SYSV
AC_CHECK_LIB(dld, shl_load) # Dynamic linking for HP-UX
AC_CHECK_LIB(socket, socketpair) # SunOS/Solaris
AC_CHECK_LIB(rt, clock_gettime) # GNU/Linux
case "$target_cpu" in
alpha*) case "$target_os"::"$GCC" in
*::yes) CFLAGS="-mieee $CFLAGS" ;; # gcc
osf*) CFLAGS="-ieee $CFLAGS" ;; # ccc
esac ;;
esac
dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(stdlib.h string.h unistd.h limits.h sys/file.h sys/ioctl.h sys/syscall.h\
fcntl.h sys/fcntl.h sys/select.h sys/time.h sys/times.h sys/param.h\
syscall.h pwd.h grp.h a.out.h utime.h memory.h direct.h sys/resource.h \
sys/mkdev.h sys/utime.h xti.h netinet/in_systm.h float.h ieeefp.h pthread.h \
ucontext.h intrinsics.h langinfo.h locale.h sys/sendfile.h time.h)
dnl Check additional types.
AC_CHECK_SIZEOF(rlim_t, 0, [
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdio.h>
])
dnl Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_SIZE_T
AC_CHECK_SIZEOF(size_t, 0)
AC_CHECK_SIZEOF(ptrdiff_t, $ac_cv_sizeof_size_t)
AC_STRUCT_ST_BLKSIZE
AC_STRUCT_ST_BLOCKS
AC_STRUCT_ST_RDEV
AC_CHECK_MEMBERS([struct stat.st_atim])
AC_CHECK_MEMBERS([struct stat.st_atimespec])
AC_CHECK_MEMBERS([struct stat.st_atimensec])
AC_CHECK_MEMBERS([struct stat.st_mtim])
AC_CHECK_MEMBERS([struct stat.st_mtimespec])
AC_CHECK_MEMBERS([struct stat.st_mtimensec])
AC_CHECK_MEMBERS([struct stat.st_ctim])
AC_CHECK_MEMBERS([struct stat.st_ctimespec])
AC_CHECK_MEMBERS([struct stat.st_ctimensec])
AC_CHECK_TYPES([struct timespec], [], [], [@%:@ifdef HAVE_TIME_H
@%:@include <time.h>
@%:@endif])
AC_CHECK_TYPE(fd_mask, [AC_DEFINE(HAVE_RB_FD_INIT, 1)])
dnl RUBY_DEFINT TYPENAME, SIZE, [SIGNED-OR-UNSIGNED], [INCLUDES = DEFAULT-INCLUDES]
AC_DEFUN([RUBY_DEFINT], [dnl
AC_CACHE_CHECK([for $1], [rb_cv_type_$1],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])
typedef $1 t; int s = sizeof(t) == 42;])],
[rb_cv_type_$1=yes],
[case m4_bmatch([$2], [^[1-9][0-9]*$], $2, [$ac_cv_sizeof_]AS_TR_SH($2)) in
"1") rb_cv_type_$1="m4_if([$3], [], [signed ], [$3 ])char";;
"$ac_cv_sizeof_short") rb_cv_type_$1="m4_if([$3], [], [], [$3 ])short";;
"$ac_cv_sizeof_int") rb_cv_type_$1="m4_if([$3], [], [], [$3 ])int";;
"$ac_cv_sizeof_long") rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long";;
"$ac_cv_sizeof_long_long") rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long long";;
"$ac_cv_sizeof___int64") rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int64";;
*) rb_cv_type_$1=no;;
esac])])
if test "${rb_cv_type_$1}" != no; then
AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)
test "${rb_cv_type_$1}" = yes || AC_DEFINE_UNQUOTED($1, [$rb_cv_type_$1])
fi
])
RUBY_DEFINT(int8_t, 1)
RUBY_DEFINT(uint8_t, 1, unsigned)
RUBY_DEFINT(int16_t, 2)
RUBY_DEFINT(uint16_t, 2, unsigned)
RUBY_DEFINT(int32_t, 4)
RUBY_DEFINT(uint32_t, 4, unsigned)
RUBY_DEFINT(int64_t, 8)
RUBY_DEFINT(uint64_t, 8, unsigned)
RUBY_DEFINT(int128_t, 16)
RUBY_DEFINT(uint128_t, 16, unsigned)
RUBY_DEFINT(intptr_t, void*)
RUBY_DEFINT(uintptr_t, void*, unsigned)
RUBY_DEFINT(ssize_t, size_t) dnl may differ from int, so not use AC_TYPE_SSIZE_T.
AC_CACHE_CHECK(for stack end address, rb_cv_stack_end_address,
[rb_cv_stack_end_address=no
for addr in __libc_stack_end _SEND; do
AC_TRY_LINK(
[extern void *$addr;],
[if (!$addr) return 1;],
[rb_cv_stack_end_address="$addr"; break])
done])
if test $rb_cv_stack_end_address != no; then
AC_DEFINE_UNQUOTED(STACK_END_ADDRESS, $rb_cv_stack_end_address)
fi
dnl Checks for library functions.
AC_TYPE_GETGROUPS
AC_TYPE_SIGNAL
case "${target_cpu}-${target_os}" in
powerpc-darwin*)
AC_LIBSOURCES(alloca.c)
AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.${ac_objext}])
AC_DEFINE(C_ALLOCA)
AC_DEFINE_UNQUOTED(alloca, alloca)
;;
*)
AC_FUNC_ALLOCA
;;
esac
AC_FUNC_MEMCMP
# http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html
# Debian GNU/Linux Etch's libc6.1 2.3.6.ds1-13etch5 has this problem.
# Debian GNU/Linux Lenny's libc6.1 2.7-10 has no problem.
AC_CACHE_CHECK(for broken erfc of glibc-2.3.6 on IA64, rb_broken_glibc_ia64_erfc,
[AC_TRY_RUN([
#include <math.h>
int
main()
{
erfc(10000.0);
return 0;
}
],
rb_broken_glibc_ia64_erfc=no,
rb_broken_glibc_ia64_erfc=yes,
rb_broken_glibc_ia64_erfc=no)])
case $rb_broken_glibc_ia64_erfc in
yes) ac_cv_func_erf=no;;
esac
AC_REPLACE_FUNCS(dup2 memmove strerror strftime\
strchr strstr crypt flock vsnprintf\
isnan finite isinf hypot acosh erf tgamma lgamma_r cbrt \
strlcpy strlcat)
AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot fsync getcwd eaccess\
truncate ftruncate chsize times utimes utimensat fcntl lockf lstat\
link symlink readlink\
setitimer setruid seteuid setreuid setresuid setproctitle socketpair\
setrgid setegid setregid setresgid issetugid pause lchown lchmod\
getpgrp setpgrp getpgid setpgid initgroups getgroups setgroups\
getpriority getrlimit setrlimit sysconf group_member\
dlopen sigprocmask sigaction sigsetjmp _setjmp _longjmp vsnprintf snprintf\
setsid telldir seekdir fchmod cosh sinh tanh log2 round signbit\
setuid setgid daemon select_large_fdset setenv unsetenv\
mktime timegm clock_gettime gettimeofday\
pread sendfile)
AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp,
[AC_TRY_LINK([@%:@include <setjmp.h>
jmp_buf jb; void t(v) int v; {__builtin_longjmp(jb, v);}],
[__builtin_setjmp(jb);],
[ac_cv_func___builtin_setjmp=yes],
[ac_cv_func___builtin_setjmp=no])
])
test x$ac_cv_func__longjmp = xno && ac_cv_func__setjmp=no
AC_MSG_CHECKING(for setjmp type)
AC_ARG_WITH(setjmp-type,
[ --with-setjmp-type select setjmp type], [
case $withval in
__builtin_setjmp) setjmp_prefix=__builtin_;;
_setjmp) setjmp_prefix=_;;
sigsetjmp) setjmp_prefix=sig;;
setjmp) setjmp_prefix=;;
'') unset setjmp_prefix;;
*) AC_MSG_ERROR(invalid setjmp type: $withval);;
esac], [unset setjmp_prefix])
if test ${setjmp_prefix+set}; then
if test "${setjmp_prefix}" && eval test '$ac_cv_func_'${setjmp_prefix}setjmp = no; then
AC_MSG_ERROR(${setjmp_prefix}setjmp is not available)
fi
elif test "$ac_cv_func___builtin_setjmp" = yes; then
setjmp_prefix=__builtin_
elif test "$ac_cv_func__setjmp" = yes; then
setjmp_prefix=_
elif test "$ac_cv_func_sigsetjmp" = yes; then
case $target_os in
solaris*|cygwin*)
setjmp_prefix=;;
*)
setjmp_prefix=sig;;
esac
else
setjmp_prefix=
fi
if test x$setjmp_prefix = xsig; then
setjmp_sigmask=yes
else
unset setjmp_sigmask
fi
AC_MSG_RESULT(${setjmp_prefix}setjmp)
AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp(env${setjmp_sigmask+,0})])
AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp(env,val)])
AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf)
AC_ARG_ENABLE(setreuid,
[ --enable-setreuid use setreuid()/setregid() according to need even if obsolete.],
[use_setreuid=$enableval])
if test "$use_setreuid" = yes; then
AC_DEFINE(USE_SETREUID)
AC_DEFINE(USE_SETREGID)
fi
AC_STRUCT_TIMEZONE
AC_CACHE_CHECK(for struct tm.tm_gmtoff, rb_cv_member_struct_tm_tm_gmtoff,
[AC_TRY_COMPILE([#include <time.h>],
[struct tm t; t.tm_gmtoff = 3600;],
[rb_cv_member_struct_tm_tm_gmtoff=yes],
[rb_cv_member_struct_tm_tm_gmtoff=no])])
if test "$rb_cv_member_struct_tm_tm_gmtoff" = yes; then
AC_DEFINE(HAVE_STRUCT_TM_TM_GMTOFF)
fi
AC_CACHE_CHECK(for external int daylight, rb_cv_have_daylight,
[AC_TRY_LINK([#include <time.h>
int i;],
[i = daylight;],
rb_cv_have_daylight=yes,
rb_cv_have_daylight=no)])
if test "$rb_cv_have_daylight" = yes; then
AC_DEFINE(HAVE_DAYLIGHT)
fi
AC_DEFUN([RUBY_CHECK_VARTYPE], [dnl
AC_CACHE_CHECK([for external $1], rb_cv_var_$1,
[rb_cv_var_$1=no
AC_TRY_COMPILE([
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 1
#endif
$2
;
const volatile void *volatile t;],
[t = &(&$1)[0];],
[for t in $3; do
AC_TRY_COMPILE([
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 1
#endif
$2
;
extern $t $1;
const volatile void *volatile t;],
[t = &(&$1)[0];],
[rb_cv_var_$1=$t; break])
done])])
if test "[$rb_cv_var_]$1" != no; then
AC_DEFINE([HAVE_VAR_]m4_toupper($1))
AC_DEFINE_UNQUOTED([TYPEOF_VAR_]m4_toupper($1), $rb_cv_var_$1)
fi])
RUBY_CHECK_VARTYPE(timezone, [@%:@include <time.h>], [long int])
RUBY_CHECK_VARTYPE(altzone, [@%:@include <time.h>], [long int])
if test "$rb_cv_var_timezone" = no; then
AC_CHECK_FUNCS(timezone)
if test "$ac_cv_func_timezone" = yes; then
AC_CACHE_CHECK([whether timezone requires zero arguments], rb_cv_func_timezone_void,
[AC_TRY_COMPILE([@%:@include <time.h>],
[(void)timezone(0, 0);],
[rb_cv_func_timezone_void=no],
[rb_cv_func_timezone_void=yes])]
)
if test $rb_cv_func_timezone_void = yes; then
AC_DEFINE(TIMEZONE_VOID)
fi
fi
fi
AC_CACHE_CHECK(for negative time_t for gmtime(3), rb_cv_negative_time_t,
[AC_TRY_RUN([
#include <time.h>
void
check(tm, y, m, d, h, s)
struct tm *tm;
int y, m, d, h, s;
{
if (!tm ||
tm->tm_year != y ||
tm->tm_mon != m-1 ||
tm->tm_mday != d ||
tm->tm_hour != h ||
tm->tm_sec != s) {
exit(1);
}
}
int
main()
{
time_t t = -1;
struct tm *tm;
check(gmtime(&t), 69, 12, 31, 23, 59);
t = ~(time_t)0 << 31;
check(gmtime(&t), 1, 12, 13, 20, 52);
return 0;
}
],
rb_cv_negative_time_t=yes,
rb_cv_negative_time_t=no,
rb_cv_negative_time_t=yes)])
if test "$rb_cv_negative_time_t" = yes; then
AC_DEFINE(NEGATIVE_TIME_T)
fi
if test "$ac_cv_func_sigprocmask" = yes && test "$ac_cv_func_sigaction" = yes; then
AC_DEFINE(POSIX_SIGNAL)
else
AC_CHECK_FUNCS(sigsetmask)
AC_CACHE_CHECK(for BSD signal semantics, rb_cv_bsd_signal,
[AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
void
sig_handler(dummy)
int dummy;
{
}
int
main()
{
signal(SIGINT, sig_handler);
kill(getpid(), SIGINT);
kill(getpid(), SIGINT);
return 0;
}
],
rb_cv_bsd_signal=yes,
rb_cv_bsd_signal=no,
rb_cv_bsd_signal=$ac_cv_func_sigsetmask)])
if test "$rb_cv_bsd_signal" = yes; then
AC_DEFINE(BSD_SIGNAL)
fi
fi
AC_FUNC_GETPGRP
AC_FUNC_SETPGRP
AC_C_BIGENDIAN
AC_C_CONST
AC_C_CHAR_UNSIGNED
AC_C_INLINE
AC_C_VOLATILE
if test x"$target_cpu" = xia64; then
AC_LIBOBJ([ia64])
AC_CACHE_CHECK(for __libc_ia64_register_backing_store_base,
rb_cv___libc_ia64_register_backing_store_base,
[rb_cv___libc_ia64_register_backing_store_base=no
AC_TRY_LINK(
[extern unsigned long __libc_ia64_register_backing_store_base;],
[unsigned long p = __libc_ia64_register_backing_store_base;
printf("%ld\n", p);],
[rb_cv___libc_ia64_register_backing_store_base=yes])])
if test $rb_cv___libc_ia64_register_backing_store_base = yes; then
AC_DEFINE(HAVE___LIBC_IA64_REGISTER_BACKING_STORE_BASE)
fi
fi
AC_CACHE_CHECK(whether right shift preserve sign bit, rb_cv_rshift_sign,
[AC_TRY_RUN([
int
main()
{
if (-1==(-1>>1))
return 0;
return 1;
}
],
rb_cv_rshift_sign=yes,
rb_cv_rshift_sign=no,
rb_cv_rshift_sign=yes)])
if test "$rb_cv_rshift_sign" = yes; then
AC_DEFINE(RSHIFT(x,y), ((x)>>(int)y))
else
AC_DEFINE(RSHIFT(x,y), (((x)<0) ? ~((~(x))>>y) : (x)>>y))
fi
AC_MSG_CHECKING(read count field in FILE structures)
AC_CACHE_VAL(rb_cv_fcnt,
[for fcnt in dnl
_cnt dnl
__cnt dnl
_r dnl
readCount dnl
_rcount dnl for emx0.9c
; do
AC_TRY_COMPILE([#include <stdio.h>
],
[FILE *f = stdin; f->$fcnt = 0;],
rb_cv_fcnt="$fcnt"; break,
rb_cv_fcnt="not found")
done])
if test "$rb_cv_fcnt" = "not found"; then
AC_MSG_RESULT([not found(OK if using GNU libc)])
else
AC_MSG_RESULT($rb_cv_fcnt)