# hints/aix_3.sh # # On Tue 03 Feb 2004 split off from aix.sh by H.Merijn Brand # AIX 3.x.x hints thanks to Wayne Scott # Notes: # # - shared libperl support is tricky. if ever libperl.a ends up # in /usr/local/lib/* it can override any subsequent builds of # that same perl release. to make sure you know where the shared # libperl.a is coming from do a 'dump -Hv perl' and check all the # library search paths in the loader header. # # it would be nice to warn the user if a libperl.a exists that is # going to override the current build, but that would be complex. # # better yet, a solid fix for this situation should be developed. alignbytes=8 case "$usemymalloc" in '') usemymalloc='n' ;; esac # Intuiting the existence of system calls under AIX is difficult, # at best; the safest technique is to find them empirically. case "$usenm" in '') usenm='undef' esac so="a" # AIX itself uses .o (libc.o) but we prefer compatibility # with the rest of the world and with rest of the scripting # languages (Tcl, Python) and related systems (SWIG). # Stephanie Beals dlext="so" # Take possible hint from the environment. If 32-bit is set in the # environment, we can override it later. If set for 64, the # 'sizeof' test sees a native 64-bit architecture and never looks back. case "$use64bitint$use64bitall$usemorebits" in *$define*) cat >&4 <&4 < # # Tell perl which symbols to export for dynamic linking. cccdlflags='none' # All AIX code is position independent cc_type=xlc # do not export to config.sh case "$cc" in *gcc*) cc_type=gcc ccdlflags='-Xlinker' if [ "X$gccversion" = "X" ]; then # Done too late in Configure if hinted gccversion=`$cc -dumpversion` fi ;; *) ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -v '\.msg\.[A-Za-z_]*\.' | head -1 | awk '{print $1,$2}'` case "$ccversion" in '') ccversion=`lslpp -L | grep 'IBM C and C++ Compilers LUM$'` ;; *.*.*.*.*.*.*) # Ahhrgg, more than one C compiler installed first_cc_path=`which ${cc:-cc}` case "$first_cc_path" in *vac*) cc_type=vac ;; /usr/bin/cc) # Check the symlink if [ -h $first_cc_path ]; then ls -l $first_cc_path > reflect if grep -i vac reflect >/dev/null 2>&1 ; then cc_type=vac fi rm -f reflect fi ;; esac ccversion=`lslpp -L | grep 'C for AIX Compiler$' | grep -i $cc_type | head -1` ;; vac*.*.*.*) cc_type=vac ;; esac ccversion=`echo "$ccversion" | awk '{print $2}'` case "$ccversion" in 3.6.6.0) optimize='none' ;; 4.4.0.0|4.4.0.1|4.4.0.2) cat >&4 <&4 <&4 <&4 < UU/usethreads.cbu <<'EOCBU' case "$usethreads" in $define|true|[yY]*) d_drand48_r='undef' d_endgrent_r='undef' d_endpwent_r='undef' d_getgrent_r='undef' d_getpwent_r='undef' d_random_r='undef' d_setgrent_r='undef' d_setpwent_r='undef' d_srand48_r='undef' d_strerror_r='undef' ccflags="$ccflags -DNEED_PTHREAD_INIT" case "$cc" in *gcc*) ccflags="-D_THREAD_SAFE $ccflags" ;; cc_r) ;; cc|xl[cC]_r) echo >&4 "Switching cc to cc_r because of POSIX threads." # xlc_r has been known to produce buggy code in AIX 4.3.2. # (e.g. pragma/overload core dumps) Let's suspect xlC_r, too. # --jhi@iki.fi cc=cc_r ;; '') cc=cc_r ;; *) cat >&4 < UU/uselargefiles.cbu <<'EOCBU' case "$uselargefiles" in ''|$define|true|[yY]*) # Configure should take care of use64bitint and use64bitall being # defined before uselargefiles.cbu is consulted. if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then # Keep these at the left margin. ccflags_uselargefiles="`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`" ldflags_uselargefiles="`getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`" else # Keep these at the left margin. ccflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_CFLAGS 2>/dev/null`" ldflags_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LDFLAGS 2>/dev/null`" fi if test X"$use64bitint:$quadtype" = X"$define:long" -o X"$use64bitall" = Xdefine; then # Keep this at the left margin. libswanted_uselargefiles="`getconf XBS5_LP64_OFF64_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`" else # Keep this at the left margin. libswanted_uselargefiles="`getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`" fi case "$ccflags_uselargefiles$ldflags_uselargefiles$libs_uselargefiles" in '') ;; *) ccflags="$ccflags $ccflags_uselargefiles" ldflags="$ldflags $ldflags_uselargefiles" libswanted="$libswanted $libswanted_uselargefiles" ;; esac case "$gccversion" in '') ;; *) # Remove xlc-specific -qflags. ccflags="`echo $ccflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`" ldflags="`echo $ldflags | sed -e 's@ -q[^ ]*@ @g' -e 's@^-q[^ ]* @@g'`" # Move xlc-specific -bflags. ccflags="`echo $ccflags | sed -e 's@ -b@ -Wl,-b@g'`" ldflags="`echo ' '$ldflags | sed -e 's@ -b@ -Wl,-b@g'`" lddlflags="`echo ' '$lddlflags | sed -e 's@ -b@ -Wl,-b@g'`" ld='gcc' echo >&4 "(using ccflags $ccflags)" echo >&4 "(using ldflags $ldflags)" echo >&4 "(using lddlflags $lddlflags)" ;; esac ;; esac EOCBU if test $usenativedlopen = 'true' ; then ccflags="$ccflags -DUSE_NATIVE_DLOPEN" case "$cc" in *gcc*) ldflags="$ldflags -Wl,-brtl" ;; *) ldflags="$ldflags -brtl" ;; esac else # If the C++ libraries, libC and libC_r, are available we will # prefer them over the vanilla libc, because the libC contain # loadAndInit() and terminateAndUnload() which work correctly # with C++ statics while libc load() and unload() do not. See # ext/DynaLoader/dl_aix.xs. The C-to-C_r switch is done by # usethreads.cbu, if needed. if test -f /lib/libC.a -a X"`$cc -v 2>&1 | grep gcc`" = X; then # 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 fi # EOF