forked from schacon/perl
/
os390.sh
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/
os390.sh
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# hints/os390.sh
#
# OS/390 hints by David J. Fiander <davidf@mks.com>
#
# OS/390 OpenEdition Release 3 Mon Sep 22 1997 thanks to:
#
# John Goodyear <johngood@us.ibm.com>
# John Pfuntner <pfuntner@vnet.ibm.com>
# Len Johnson <lenjay@ibm.net>
# Bud Huff <BAHUFF@us.oracle.com>
# Peter Prymmer <pvhp@forte.com>
# Andy Dougherty <doughera@lafayette.edu>
# Tim Bunce <Tim.Bunce@ig.co.uk>
#
# as well as the authors of the aix.sh file
#
# To get ANSI C, we need to use c89, and ld doesn't exist
# You can override this with Configure -Dcc=gcc -Dld=ld.
case "$cc" in
'') cc='c99' ;;
esac
case "$ld" in
'') ld='c99' ;;
esac
# -DMAXSIG=39 maximum signal number
# -DOEMVS is used in place of #ifdef __MVS__ in certain places.
# -D_OE_SOCKETS alters system headers.
# -D_XOPEN_SOURCE_EXTENDEDA alters system headers.
# c89 hides most of the useful header stuff, _ALL_SOURCE turns it on again.
# YYDYNAMIC ensures that the OS/390 yacc generated parser is reentrant.
# -DEBCDIC should come from Configure and need not be mentioned here.
# Prepend your favorites with Configure -Dccflags=your_favorites
case "$ccflags" in
'') ccflags='-qlanglvl=extended:extc89:extc99 -qlongname -qxplink -qdll -qfloat=ieee -qhaltonmsg=3296:4108 -DMAXSIG=39 -DOEMVS -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -DYYDYNAMIC -D_POSIX_SOURCE=1' ;;
*) ccflags='$ccflags -qlanglvl=extended:extc89:extc99 -qlongname -qxplink -qdll -qfloat=ieee -qhaltonmsg=3296:4108 -DMAXSIG=39 -DOEMVS -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -DYYDYNAMIC -D_POSIX_SOURCE=1' ;;
esac
# Turning on optimization breaks perl.
# You can override this with Configure -Doptimize='-O' or somesuch.
case "$optimize" in
'') optimize='none' ;;
esac
# To link via definition side decks we need the dll option
# You can override this with Configure -Ucccdlflags or somesuch.
case "$cccdlflags" in
'') cccdlflags='-qxplink -qdll' ;;
esac
case "$so" in
'') so='a' ;;
esac
case "$alignbytes" in
'') alignbytes=8 ;;
esac
case "$usemymalloc" in
'') usemymalloc='n' ;;
esac
# On OS/390, libc.a doesn't really hold anything at all,
# so running nm on it is pretty useless.
# You can override this with Configure -Dusenm.
case "$usenm" in
'') usenm='false' ;;
esac
# Setting ldflags='-Wl,EDIT=NO' will get rid of the symbol
# information at the end of the executable (=> smaller binaries).
# Override this option with -Dldflags='whatever else you wanted'.
case "$ldflags" in
'') ldflags='-qxplink -qdll' ;;
esac
# In order to build with dynamic be sure to specify:
# Configure -Dusedl
# Do not forget to add $archlibexp/CORE to your LIBPATH.
# You might want to override some of this with things like:
# Configure -Dusedl -Ddlext=so -Ddlsrc=dl_dllload.xs.
case "$usedl" in
'')
usedl='n'
case "$dlext" in
'') dlext='none' ;;
esac
;;
define)
case "$useshrplib" in
'') useshrplib='true' ;;
esac
case "$dlsrc" in
'') dlsrc='dl_dllload.xs' ;;
esac
# For performance use 'so' at or beyond v2.8, 'dll' for 2.7 and prior versions
case "`uname -v`x`uname -r`" in
02x0[89].*|02x1[0-9].*|[0-9][3-9]x*)
so='so'
case "$dlext" in
'') dlext='so' ;;
esac
;;
*)
so='dll'
case "$dlext" in
'') dlext='dll' ;;
esac
;;
esac
libperl="libperl.$so"
ccflags="$ccflags -D_SHR_ENVIRON -DPERL_EXTERNAL_GLOB -qexportall -qdll -qxplink"
cccdlflags='-c -qexportall -qxplink -qdll'
# The following will need to be modified for the installed libperl.x.
# The modification to Config.pm is done by the installperl script after the build and test.
ccdlflags="-qxplink -qdll `pwd`/libperl.x"
lddlflags="-qxplink -qdll `pwd`/libperl.x"
;;
esac
# even on static builds using LIBPATH should be OK.
case "$ldlibpthname" in
'') ldlibpthname=LIBPATH ;;
esac
# The following should always be used
d_oldpthreads='define'
# Header files to include.
# You can override these with Configure -Ui_time -Ui_systime -Dd_pthread_atfork.
case "$i_time" in
'') i_time='define' ;;
esac
case "$i_systime" in
'') i_systime='define' ;;
esac
case "$d_pthread_atfork" in
'') d_pthread_atfork='undef' ;;
esac
case "$d_pthread_atfork" in
'') d_pthread_atfork='undef' ;;
esac
# (from aix.sh)
# uname -m output is too specific and not appropriate here
# osname should come from Configure
# You can override this with Configure -Darchname='s390' but please don't.
case "$archname" in
'') archname="$osname" ;;
esac
# We have our own cppstdin script. This is not a variable since
# Configure sees the presence of the script file.
# We put system header -D definitions in so that Configure
# can find the shmat() prototype in <sys/shm.h> and various
# other things. Unfortunately, cppflags occurs too late to be of
# value external to the script. This may need to be revisited
# under a compiler other than c89.
case "$usedl" in
define)
echo 'cat >.$$.c; '"$cc"' -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -D_SHR_ENVIRON -E -Wc,"LANGLVL(DOLLARINNAMES)",NOLOC ${1+"$@"} .$$.c | fgrep -v "??="; rm .$$.c' > cppstdin
;;
*)
echo 'cat >.$$.c; '"$cc"' -D_OE_SOCKETS -D_XOPEN_SOURCE_EXTENDED -D_ALL_SOURCE -E -Wc,"LANGLVL(DOLLARINNAMES)",NOLOC ${1+"$@"} .$$.c | fgrep -v "??="; rm .$$.c' > cppstdin
;;
esac
#
# Note that Makefile.SH employs a bare yacc command to generate
# perly.[hc], hence you may wish to:
#
# alias yacc='myyacc'
#
# Then if you would like to use myyacc and skip past the
# following warnings try invoking Configure like so:
#
# sh Configure -Dbyacc=yacc
#
# This trick ought to work even if your yacc is byacc.
#
if test "X$byacc" = "Xbyacc" ; then
if test -e /etc/yyparse.c ; then
: we should be OK - perhaps do a test -r?
else
cat <<EOWARN >&4
Warning. You do not have a copy of yyparse.c, the default
yacc parser template file, in place in /etc.
EOWARN
if test -e /samples/yyparse.c ; then
cat <<EOWARN >&4
There does appear to be a template file in /samples though.
Please run:
cp /samples/yyparse.c /etc
before attempting to Configure the build of $package.
EOWARN
else
cat <<EOWARN >&4
There does not appear to be one in /samples either.
If you feel you can make use of an alternate yacc-like
parser generator then please read the comments in the
hints/os390.sh file carefully.
EOWARN
fi
exit 1
fi
fi
# Most of the time gcvt() seems to work fine but
# sometimes values like 0.1, 0.2, come out as "10", "20",
# a trivial Perl demonstration snippet is 'print 0.1'.
# The -W 0,float(ieee) seems to be the switch breaking gcvt().
# sprintf() seems to get things right(er).
gconvert_preference=sprintf
# Configure gets these wrong for some reason.
d_gethostbyaddr_r='undef'
d_gethostbyname_r='undef'
d_gethostent_r='undef'
# The z/OS C compiler compiler supports the attribute keyword, but in a
# limited manner.
#
# Ideally, Configure's tests should test the attributes as they are expected
# to be used in perl, and, ideally, those tests would fail on z/OS.
# Until then, just tell Configure to ignore the attributes. Currently,
# Configure thinks attributes are supported because it does not recognize
# warning messages like this:
#
# INFORMATIONAL CCN4108 ./proto.h:4534 The use of keyword '__attribute__' is non-portable.
d_attribute_deprecated='undef'
d_attribute_format='undef'
d_attribute_malloc='undef'
d_attribute_nonnull='undef'
d_attribute_noreturn='undef'
d_attribute_pure='undef'
d_attribute_unused='undef'
d_attribute_warn_unused_result='undef'
# nan() is in libm but doesn't work as expected: nan("") or nan("0")
# returns zero, not a nan:
# http://www-01.ibm.com/support/knowledgecenter/SSLTBW_1.12.0/com.ibm.zos.r12.bpxbd00/nan.htm%23nan?lang=en
# contrast with e.g.
# http://www.cplusplus.com/reference/cmath/nan-function/
# (C++ but C99 math agrees)
# XXX: Configure scan for proper behavior
d_nan='undef'
# Configures says this exists, but it doesn't work properly. See
# <54DCE073.4010100@khwilliamson.com>
d_dir_dd_fd='undef'