699 lines
21 KiB
Bash
699 lines
21 KiB
Bash
# hints/aix.sh
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# AIX 3 and AIX 4 are split off to aix_3.sh and aix_4.sh
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# early Feb 2004 by H.Merijn Brand
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# please read comments in there for historic questions.
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# many now stripped here
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# Contact dfavor@corridor.com for any of the following:
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#
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# - AIX 43x and above support
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# - gcc + threads support
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# - socks support
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#
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# Notes:
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#
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# - shared libperl support is tricky. if ever libperl.a ends up
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# in /usr/local/lib/* it can override any subsequent builds of
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# that same perl release. to make sure you know where the shared
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# libperl.a is coming from do a 'dump -Hv perl' and check all the
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# library search paths in the loader header.
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#
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# it would be nice to warn the user if a libperl.a exists that is
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# going to override the current build, but that would be complex.
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#
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# better yet, a solid fix for this situation should be developed.
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#
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# Configure finds setrgid and setruid, but they're useless. The man
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# pages state:
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# setrgid: The EPERM error code is always returned.
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# setruid: The EPERM error code is always returned. Processes cannot
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# reset only their real user IDs.
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d_setrgid='undef'
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d_setruid='undef'
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alignbytes=8
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case "$usemymalloc" in
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'') usemymalloc='n' ;;
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esac
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# malloc wrap works, but not in vac-5, see later
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case "$usemallocwrap" in
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'') usemallocwrap='define' ;;
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esac
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# Intuiting the existence of system calls under AIX is difficult,
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# at best; the safest technique is to find them empirically.
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case "$usenativedlopen" in
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'') usenativedlopen='true' ;;
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esac
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so="a"
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# AIX itself uses .o (libc.o) but we prefer compatibility
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# with the rest of the world and with rest of the scripting
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# languages (Tcl, Python) and related systems (SWIG).
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# Stephanie Beals <bealzy@us.ibm.com>
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dlext="so"
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# Take possible hint from the environment. If 32-bit is set in the
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# environment, we can override it later. If set for 64, the
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# 'sizeof' test sees a native 64-bit architecture and never looks back.
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case "$OBJECT_MODE" in
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32) cat >&4 <<EOF
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You have OBJECT_MODE=32 set in the environment.
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I take this as a hint you do not want to
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build for a 64-bit address space. You will be
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given the opportunity to change this later.
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EOF
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;;
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64) cat >&4 <<EOF
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You have OBJECT_MODE=64 set in the environment.
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This forces a full 64-bit build. If that is
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not what you intended, please terminate this
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program, unset it and restart.
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EOF
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;;
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esac
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s=`lslpp -lc bos.adt.libm >/dev/null`
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if [ $? != 0 ]; then
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echo "You cannot build perl without the bos.adt.libm package installed" >&4
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exit
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fi
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# uname -m output is too specific and not appropriate here
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case "$archname" in
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'') archname="$osname" ;;
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esac
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cc=${cc:-cc}
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ccflags="$ccflags -D_ALL_SOURCE -D_ANSI_C_SOURCE -D_POSIX_SOURCE"
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case "$cc" in
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*gcc*|*g++*) ;;
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*) ccflags="$ccflags -qmaxmem=-1 -qnoansialias -qlanglvl=extc99" ;;
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esac
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nm_opt='-B'
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# These functions don't work like Perl expects them to.
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d_setregid='undef'
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d_setreuid='undef'
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# Changes for dynamic linking by Wayne Scott <wscott@ichips.intel.com>
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#
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# Tell perl which symbols to export for dynamic linking.
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cccdlflags='none' # All AIX code is position independent
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cc_type=xlc # do not export to config.sh
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case "$cc" in
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*gcc*|*g++*)
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cc_type=gcc
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ccdlflags='-Xlinker'
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if [ "X$gccversion" = "X" ]; then
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# Done too late in Configure if hinted
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gccversion=`$cc -dumpversion`
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fi
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;;
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*) ccversion=`lslpp -ql -Ou vac.C | grep -v '^Path' | head -1 | awk '{print $1,$2}'`
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case "$ccversion" in
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'') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$'` ;;
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*.*.*.*.*.*.*) # Ahhrgg, more than one C compiler installed
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first_cc_path=`which ${cc:-cc}`
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case "$first_cc_path" in
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*vac*)
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cc_type=vac ;;
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/usr/bin/cc) # Check the symlink
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if [ -h $first_cc_path ] ; then
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ls -l $first_cc_path > reflect
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if grep -i vac reflect >/dev/null 2>&1 ; then
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cc_type=vac
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fi
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rm -f reflect
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fi
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;;
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esac
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ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | head -1`
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;;
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vac*.*.*.*)
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cc_type=vac
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;;
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esac
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ccversion=`echo "$ccversion" | awk '{print $2}'`
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# Redbooks state AIX-5 only supports vac-5.0.2.0 and up
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case "$ccversion" in
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5*) usemallocwrap='n' ;; # panic in miniperl
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esac
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;;
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esac
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# the required -bE:$installarchlib/CORE/perl.exp is added by
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# libperl.U (Configure) later.
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# The first 3 options would not be needed if dynamic libs. could be linked
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# with the compiler instead of ld.
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# -bI:$(PERL_INC)/perl.exp Read the exported symbols from the perl binary
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# -bE:$(BASEEXT).exp Export these symbols. This file contains only one
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# symbol: boot_$(EXP) can it be auto-generated?
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if test $usenativedlopen = 'true' ; then
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lddlflags="$lddlflags -bhalt:4 -G -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc -lm"
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else
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lddlflags="$lddlflags -bhalt:4 -bM:SRE -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp -bnoentry -lc"
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fi
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case "$use64bitall" in
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$define|true|[yY]*) use64bitint="$define" ;;
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esac
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case "$usemorebits" in
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$define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
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esac
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case $cc_type in
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vac|xlc)
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case "$uselongdouble" in
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$define|true|[yY]*)
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ccflags="$ccflags -qlongdouble"
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libswanted="c128 $libswanted"
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lddlflags=`echo "$lddlflags " | sed -e 's/ -lc / -lc128 -lc /'`
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;;
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esac
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;;
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esac
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case "$cc" in
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*gcc*|*g++*) ;;
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cc*|xlc*) # cc should've been set by line 116 or so if empty.
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if test ! -x /usr/bin/$cc -a -x /usr/vac/bin/$cc; then
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case ":$PATH:" in
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*:/usr/vac/bin:*) ;;
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*) if test ! -x /QOpenSys/usr/bin/$cc; then
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# The /QOpenSys/usr/bin/$cc saves us if we are
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# building natively in OS/400 PASE.
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cat >&4 <<EOF
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***
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*** You either implicitly or explicitly specified an IBM C compiler,
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*** but you do not seem to have one in /usr/bin, but you seem to have
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*** the VAC installed in /usr/vac, but you do not have the /usr/vac/bin
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*** in your PATH. I suggest adding that and retrying Configure.
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***
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EOF
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exit 1
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fi
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;;
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esac
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fi
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;;
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esac
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case "$ldlibpthname" in
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'') ldlibpthname=LIBPATH ;;
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esac
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# This script UU/usethreads.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use threads.
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cat > UU/usethreads.cbu <<'EOCBU'
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case "$usethreads" in
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$define|true|[yY]*)
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d_drand48_r='undef'
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d_endgrent_r='undef'
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d_endpwent_r='undef'
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d_getgrent_r='undef'
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d_getpwent_r='undef'
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d_random_r='undef'
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d_setgrent_r='undef'
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d_setpwent_r='undef'
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d_srand48_r='undef'
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d_srandom_r='undef'
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d_strerror_r='undef'
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ccflags="$ccflags -DNEED_PTHREAD_INIT"
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case "$cc" in
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*gcc*|*g++*)
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ccflags="-D_THREAD_SAFE $ccflags"
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;;
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cc_r)
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;;
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xlc_r)
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;;
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# we do not need the C++ compiler
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xlC_r)
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cc=xlc_r
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;;
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'')
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cc=cc_r
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;;
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*)
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esac
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# Insert pthreads to libswanted, before any libc or libC.
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set `echo X "$libswanted "| sed -e 's/ \([cC]\) / pthreads \1 /'`
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shift
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libswanted="$*"
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# Insert pthreads to lddlflags, before any libc or libC.
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set `echo X "$lddlflags " | sed -e 's/ \(-l[cC]\) / -lpthreads \1 /'`
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shift
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lddlflags="$*"
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;;
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*)
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case "$cc" in
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xlc)
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;;
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# we do not need the C++ compiler
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xlC)
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cc=xlc
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;;
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*)
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esac
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;;
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esac
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EOCBU
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# This script UU/uselargefiles.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use large files.
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cat > UU/uselargefiles.cbu <<'EOCBU'
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case "$uselargefiles" in
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''|$define|true|[yY]*)
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# Configure should take care of use64bitint and use64bitall being
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# defined before uselargefiles.cbu is consulted.
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if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
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# Keep these at the left margin.
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ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
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ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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else
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# Keep these at the left margin.
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ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`"
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ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`"
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fi
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if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then
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# Keep this at the left margin.
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libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
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else
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# Keep this at the left margin.
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libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
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fi
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case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in
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'') ;;
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*) ccflags="$ccflags $ccflags_uselargefiles"
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ldflags="$ldflags $ldflags_uselargefiles"
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libswanted="$libswanted $libswanted_uselargefiles"
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;;
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esac
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# -bmaxdata:0x80000000
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# - This increases the size of heap memory available to perl.
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# Default is 256 MB, which sounds large but caused a software
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# vendor problems. So this sets heap to 2 GB maximum. Anything
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# higher and you'd want to consider 64 bit perl.
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# - NOTE however, that setting this in 64bit mode will limit your
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# amount of available memory to 2GB, so we set this only in
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# 32bit mode to avoid future problems a la "should be enough
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# for everyone" ...
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#
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case "$use64bitall" in
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$define|true|[yY]*)
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:
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;;
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*)
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ldflags="$ldflags -bmaxdata:0x80000000"
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;;
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esac
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case "$gccversion" in
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'') # Not using gcc.
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# Due to calling $cc without $cflags when linking some
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# binaries we need to hardwire $cc to the right mode.
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# The correct fix would be to have Makefile.SH not set
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# CLDFLAGS from $ldflags ...
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case "$use64bitall" in
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$define|true|[yY]*) cc="$cc -q64" ;;
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*) cc="$cc -q32" ;;
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esac
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# Some 32-bit getconfs will set ccflags to include -qlonglong
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# but that's no longer needed with an explicit -qextc99.
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ccflags="`echo $ccflags | sed -e 's@ -qlonglong@@'`"
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;;
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*) # Remove xlc-specific -qflags.
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ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
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ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`"
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# Move xlc-specific -bflags.
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ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`"
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ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`"
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lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`"
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lddlflags="`echo ' '$lddlflags | sed -e 's@ -G @ -Wl,-G @g'`"
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# Due to calling $cc without $cflags when linking some
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# binaries we need to hardwire $cc to the right mode.
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case "$use64bitall" in
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$define|true|[yY]*)
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cc="$cc -maix64"
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ld="$cc"
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;;
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*)
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cc="$cc -maix32"
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ld="$cc"
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;;
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esac
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echo >&4 "(using ccflags $ccflags)"
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echo >&4 "(using ldflags $ldflags)"
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echo >&4 "(using lddlflags $lddlflags)"
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;;
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esac
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;;
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esac
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EOCBU
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cat > UU/use64bitall.cbu <<'EOCBU'
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# This script UU/use64bitall.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to be maximally 64-bitty.
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case "$use64bitall" in
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$define|true|[yY]*)
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echo " "
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echo "Checking the CPU width of your hardware..." >&4
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$cat >size.c <<EOCP
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#include <stdio.h>
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#include <sys/systemcfg.h>
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int main (void)
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{
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printf ("%d\n", _system_configuration.width);
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return (0);
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}
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EOCP
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set size
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if eval $compile_ok; then
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qacpuwidth=`./size`
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echo "You are running on $qacpuwidth bit hardware."
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else
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dflt="32"
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echo " "
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echo "(I can't seem to compile the test program. Guessing...)"
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rp="What is the width of your CPU (in bits)?"
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. ./myread
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qacpuwidth="$ans"
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fi
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$rm -f size.c size
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case "$qacpuwidth" in
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32*)
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cat >&4 <<EOM
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Bzzzt! At present, you can only perform a
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full 64-bit build on a 64-bit machine.
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EOM
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exit 1
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;;
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esac
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qacflags="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
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qaldflags="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
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# See jhi's comments above regarding this re-eval. I've
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# seen similar weirdness in the form of:
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#
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# 1506-173 (W) Option lm is not valid. Enter xlc for list of valid options.
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#
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# error messages from 'cc -E' invocation. Again, the offending
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# string is simply not detectable by any means. Since it doesn't
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# do any harm, I didn't pursue it. -- sh
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qaldflags="`echo $qaldflags`"
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qalibs="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
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# -q32 and -b32 may have been set by uselargefiles or user.
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# Remove them.
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ccflags="`echo $ccflags | sed -e 's@-q32@@'`"
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ldflags="`echo $ldflags | sed -e 's@-b32@@'`"
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case "$cc" in
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*gcc*|*g++*)
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ccflags="`echo $ccflags | sed -e 's@-q64@-maix64@'`"
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ccflags_uselargefiles="`echo $ccflags_uselargefiles | sed -e 's@-q64@-maix64@'`"
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qacflags="`echo $qacflags | sed -e 's@-q64@-maix64@'`"
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;;
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esac
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# Tell archiver to use large format. Unless we remove 'ar'
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# from 'trylist', the Configure script will just reset it to 'ar'
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# immediately prior to writing config.sh. This took me hours
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# to figure out.
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trylist="`echo $trylist | sed -e 's@^ar @@' -e 's@ ar @ @g' -e 's@ ar$@@'`"
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ar="ar -X64"
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nm_opt="-X64 $nm_opt"
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case "$qacflags$qaldflags$qalibs" in
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'') ;;
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*) ccflags="$ccflags $qacflags"
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ldflags="$ldflags"
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lddlflags="$qaldflags $lddlflags"
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libswanted="$libswanted $qalibs"
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;;
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esac
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case "$ccflags" in
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*-DUSE_64_BIT_ALL*) ;;
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*) ccflags="$ccflags -DUSE_64_BIT_ALL";;
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esac
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case "$archname64" in
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''|64*) archname64=64all ;;
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esac
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longsize="8"
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qacflags=''
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qaldflags=''
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qalibs=''
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qacpuwidth=''
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;;
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esac
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EOCBU
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if test $usenativedlopen = 'true' ; then
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ccflags="$ccflags -DUSE_NATIVE_DLOPEN"
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# -brtl Enables a binary to use run time linking
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# -bdynamic When used with -brtl, tells linker to search for
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# ".so"-suffix libraries as well as ".a" suffix
|
|
# libraries. AIX allows both .so and .a libraries to
|
|
# contain dynamic shared objects.
|
|
case "$cc" in
|
|
*gcc*|*g++*) ldflags="$ldflags -Wl,-brtl -Wl,-bdynamic" ;;
|
|
*) ldflags="$ldflags -brtl -bdynamic" ;;
|
|
esac
|
|
elif test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then
|
|
# If the C++ libraries, libC and libC_r, are available we will
|
|
# prefer them over the vanilla libc, because the libC contain
|
|
# loadAndInit() and terminateAndUnload() which work correctly
|
|
# with C++ statics while libc load() and unload() do not. See
|
|
# ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by
|
|
# usethreads.cbu, if needed.
|
|
|
|
# Cify libswanted.
|
|
set `echo X "$libswanted "| sed -e 's/ c / C c /'`
|
|
shift
|
|
libswanted="$*"
|
|
# Cify lddlflags.
|
|
set `echo X "$lddlflags "| sed -e 's/ -lc / -lC -lc /'`
|
|
shift
|
|
lddlflags="$*"
|
|
fi
|
|
|
|
case "$PASE" in
|
|
define)
|
|
case "$prefix" in
|
|
'') prefix=/QOpenSys/perl ;;
|
|
esac
|
|
cat >&4 <<EOF
|
|
|
|
***
|
|
*** You seem to be compiling in AIX for the OS/400 PASE environment.
|
|
*** I'm not going to use the AIX bind, nsl, and possible util libraries, then.
|
|
*** I'm also not going to install perl as /usr/bin/perl.
|
|
*** Perl will be installed under $prefix.
|
|
*** For instructions how to install this build from AIX to PASE,
|
|
*** see the file README.os400. Accept the "aix" for the question
|
|
*** about "Operating system name".
|
|
***
|
|
EOF
|
|
set `echo " $libswanted " | sed -e 's@ bind @ @' -e 's@ nsl @ @' -e 's@ util @ @'`
|
|
shift
|
|
libswanted="$*"
|
|
installusrbinperl="$undef"
|
|
|
|
# V5R1 doesn't have this (V5R2 does), without knowing
|
|
# which one we have it's safer to be pessimistic.
|
|
# Cwd will work fine even without fchdir(), but if
|
|
# V5R1 tries to use code compiled assuming fchdir(),
|
|
# lots of grief will issue forth from Cwd.
|
|
case "$d_fchdir" in
|
|
'') d_fchdir="$undef" ;;
|
|
esac
|
|
;;
|
|
esac
|
|
|
|
# remove libbsd.a from wanted libraries
|
|
libswanted=`echo " $libswanted " | sed -e 's/ bsd / /'`
|
|
libswanted=`echo " $libswanted " | sed -e 's/ BSD / /'`
|
|
d_flock='undef'
|
|
|
|
# remove libgdbm from wanted libraries
|
|
# The libgdbm < 1.8.3-5 from the AIX Toolbox is not working
|
|
# because two wrong .h are present
|
|
if [ -f "/opt/freeware/include/gdbm/dbm.h" ] ||
|
|
[ -f "/opt/freeware/include/gdbm/ndbm.h" ]; then
|
|
echo "GDBM support disabled because your GDBM package contains extraneous headers - see README.aix."
|
|
libswanted=`echo " $libswanted " | sed -e 's/ gdbm / /'`
|
|
i_gdbm='undef'
|
|
i_gdbmndbm='undef'
|
|
fi
|
|
|
|
# Some releases (and patch levels) of AIX cannot have both
|
|
# long doubles and infinity (infinity plus one equals ... NaNQ!)
|
|
#
|
|
# This deficiency, and others, is apparently a well-documented feature
|
|
# of AIX 128-bit long doubles:
|
|
#
|
|
# http://www-01.ibm.com/support/knowledgecenter/ssw_aix_61/com.ibm.aix.genprogc/128bit_long_double_floating-point_datatype.htm
|
|
#
|
|
# The URL seems to be fragile, it has moved around over the years,
|
|
# but searching AIX docs at ibm.com for "128-bit long double
|
|
# floating-point data type" should surface the latest info.
|
|
#
|
|
# Some salient points:
|
|
#
|
|
# <quote>
|
|
# * The 128-bit implementation differs from the IEEE standard for long double
|
|
# in the following ways:
|
|
# * Supports only round-to-nearest mode. If the application changes
|
|
# the rounding mode, results are undefined.
|
|
# * Does not fully support the IEEE special numbers NaN and INF.
|
|
# * Does not support IEEE status flags for overflow, underflow,
|
|
# and other conditions. These flags have no meaning for the 128-bit
|
|
# long double inplementation.
|
|
# * The 128-bit long double data type does not support the following math
|
|
# APIs: atanhl, cbrtl, copysignl, exp2l, expm1l, fdiml, fmal, fmaxl,
|
|
# fminl, hypotl, ilogbl, llrintl, llroundl, log1pl, log2l, logbl,
|
|
# lrintl, lroundl, nanl, nearbyintl, nextafterl, nexttoward,
|
|
# nexttowardf, nexttowardl, remainderl, remquol, rintl, roundl,
|
|
# scalblnl, scalbnl, tgammal, and truncl.
|
|
# * The representation of 128-bit long double numbers means that the
|
|
# following macros required by standard C in the values.h file do not
|
|
# have clear meaning:
|
|
# * Number of bits in the mantissa (LDBL_MANT_DIG)
|
|
# * Epsilon (LBDL_EPSILON)
|
|
# * Maximum representable finite value (LDBL_MAX)
|
|
# </quote>
|
|
#
|
|
# The missing math functions affect the POSIX extension math interfaces.
|
|
|
|
case "$uselongdouble" in
|
|
$define)
|
|
echo "Checking if your infinity is working with long doubles..." >&4
|
|
cat > inf$$.c <<EOF
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
int main() {
|
|
long double inf = INFINITY;
|
|
long double one = 1.0L;
|
|
printf("%Lg\n", inf + one);
|
|
}
|
|
EOF
|
|
$cc -qlongdouble -o inf$$ inf$$.c -lm
|
|
case `./inf$$` in
|
|
INF) echo "Your infinity is working correctly with long doubles." >&4 ;;
|
|
*) # NaNQ (or anything else than INF)
|
|
echo " "
|
|
echo "Your infinity is broken, I suggest disabling long doubles." >&4
|
|
rp="Disable long doubles?"
|
|
dflt="y"
|
|
. UU/myread
|
|
case "$ans" in
|
|
[Yy]*)
|
|
echo "Okay, disabling long doubles." >&4
|
|
uselongdouble="$undef"
|
|
ccflags=`echo " $ccflags " | sed -e 's/ -qlongdouble / /'`
|
|
libswanted=`echo " $libswanted " | sed -e 's/ c128/ /'`
|
|
lddlflags=`echo " $lddlflags " | sed -e 's/ -lc128 / /'`
|
|
;;
|
|
*)
|
|
echo "Okay, keeping long doubles enabled." >&4
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
rm -f inf$$.c inf$$
|
|
;;
|
|
esac
|
|
|
|
# Some releases (and patch levels) of AIX have a broken powl().
|
|
pp_cflags=''
|
|
case "$uselongdouble" in
|
|
define)
|
|
echo "Checking if your powl() is broken..." >&4
|
|
cat > powl$$.c <<EOF
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
int main() {
|
|
printf("%Lg\n", powl(-3.0L, 2.0L));
|
|
}
|
|
EOF
|
|
case "$gccversion" in
|
|
'') $cc -qlongdouble -o powl$$ powl$$.c -lm ;;
|
|
*) $cc -o powl$$ powl$$.c -lm ;;
|
|
esac
|
|
case `./powl$$` in
|
|
9) echo "Your powl() is working correctly." >&4 ;;
|
|
*)
|
|
echo "Your powl() is broken, will use a workaround." >&4
|
|
pp_cflags='ccflags="$ccflags -DHAS_AIX_POWL_NEG_BASE_BUG"'
|
|
;;
|
|
esac
|
|
rm -f powl$$.c powl$$
|
|
;;
|
|
esac
|
|
|
|
# Some releases of AIX cc/xlc a broken fmodl(), but -q64 seems to help.
|
|
case "$gccversion" in
|
|
'') case "$uselongdouble" in
|
|
define)
|
|
case "$ccflags" in
|
|
*-q64*) ;;
|
|
*) echo "Checking if your fmodl() is broken..." >&4
|
|
cat > fmodl$$.c <<EOF
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
int main() {
|
|
printf("%ld\n", (long)fmodl(powl(2, 31), (long double)4294967295));
|
|
}
|
|
EOF
|
|
$cc -qlongdouble -o fmodl$$ fmodl$$.c -lm
|
|
case `./fmodl$$` in
|
|
2147483648) echo "Your fmodl() is working correctly." >&4 ;;
|
|
*) echo "Your fmodl() is broken, will try with -q64..." >&4
|
|
$cc -q64 -qlongdouble -o fmodl$$ fmodl$$.c -lm
|
|
case `./fmodl$$` in
|
|
2147483648)
|
|
echo "The -q64 did the trick, will use it." >& 4
|
|
ccflags="`echo $ccflags | sed -e 's@-q32@@g'`"
|
|
ldflags="`echo $ldflags | sed -e 's@-q32@@g'`"
|
|
ccflags="$ccflags -q64"
|
|
ldflags="$ldflags -q64"
|
|
;;
|
|
*) echo "Not even the -q64 worked. I'm disabling long doubles." >&4
|
|
echo "And you should have stern talk with your IBM rep." >&4
|
|
uselongdouble="$undef"
|
|
ccflags=`echo " $ccflags " | sed -e 's/ -qlongdouble / /'`
|
|
libswanted=`echo " $libswanted " | sed -e 's/ c128/ /'`
|
|
lddlflags=`echo " $lddlflags " | sed -e 's/ -lc128 / /'`
|
|
;;
|
|
esac # second fmodl$$
|
|
;;
|
|
esac # first fmodl$$
|
|
;;
|
|
esac # Checking if ...
|
|
;;
|
|
esac # uselongdouble
|
|
rm -f fmodl$$.c fmodl$$
|
|
;;
|
|
esac # not gcc
|
|
|
|
|
|
# EOF
|