solaris 64-bit and gcc

To: perl5-porters@perl.org
Message-Id: <200003011759.RAA03938@tempest.npl.co.uk>

p4raw-id: //depot/cfgperl@5410

diff --git a/hints/solaris_2.sh b/hints/solaris_2.sh
index 954af6a..2599fe1 100644 (file)
--- a/hints/solaris_2.sh
+++ b/hints/solaris_2.sh
@@ -370,7 +370,7 @@ case "$use64bitall" in
 "$define"|true|[yY]*)
            libc='/usr/lib/sparcv9/libc.so'
            if test ! -f $libc; then
-               cat <<EOM
+               cat >&4 <<EOM
 
 I do not see the 64-bit libc, $libc.
 Cannot continue, aborting.
@@ -381,11 +381,27 @@ EOM
            loclibpth="$loclibpth /usr/lib/sparcv9"
            case "$cc -v 2>/dev/null" in
            *gcc*)
-               # I don't know what are the flags to make gcc sparcv9-aware,
-               # I'm just guessing. --jhi
-               ccflags="$ccflags -mv9"
-               ldflags="$ldflags -mv9"
-               lddlflags="$lddlflags -G -mv9"
+               echo 'main() { return 0; }' > try.c
+               if ${cc:-cc} -mcpu=v9 -m64 -S try.c 2>&1 | grep -e \
+                   '-m64 is not supported by this configuration'; then
+                   cat >&4 <<EOM
+
+Full 64-bit build not supported by this configuration.
+Cannot continue, aborting.
+
+EOM
+                   exit 1
+               fi
+               ccflags="$ccflags -mcpu=v9 -m64"
+               if test X`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null` != X; then
+                   ccflags="$ccflags -Wa,`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
+               fi
+               # no changes to ld flags, as (according to man ld):
+               #
+               # There is no specific option that tells ld to link 64-bit
+               # objects; the class of the first object that gets processed
+               # by ld determines whether it is to perform a 32-bit or a
+               # 64-bit link edit.
                ;;
            *)
                ccflags="$ccflags `getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"