Update Solaris 2.x hints.

(from Andy Dougherty <doughera@lafayette.edu>)

p4raw-id: //depot/maint-5.004/perl@3286

1 files changed, 68 insertions, 25 deletions

diff --git a/hints/solaris_2.sh b/hints/solaris_2.sh
index bbc4f1f569..cfa71b08fa 100644
--- a/hints/solaris_2.sh
+++ b/hints/solaris_2.sh
@@ -1,6 +1,6 @@
 # hints/solaris_2.sh
-# Last modified:  Wed May 27 13:04:45 EDT 1998
-# Andy Dougherty  <doughera@lafcol.lafayette.edu>
+# Last modified:  Tue Apr 13 13:12:49 EDT 1999
+# Andy Dougherty  <doughera@lafayette.edu>
 # Based on input from lots of folks, especially
 # Dean Roehrich <roehrich@ironwood-fddi.cray.com>
 
@@ -9,8 +9,11 @@
 # way to do that is to invoke Configure with
 # 
 #     sh Configure -Dcc='gcc -B/usr/ccs/bin/'
-# 
- 
+#
+#  (Note that the trailing slash is *required*.)
+#  gcc will occasionally emit warnings about "unused prefix", but
+#  these ought to be harmless.  See below for more details.
+
 # See man vfork.
 usevfork=false
 
@@ -33,10 +36,10 @@ libswanted="$*"
 case "$archname" in
 '')
     if test -f /usr/bin/arch; then
-        archname=`/usr/bin/arch`
+	archname=`/usr/bin/arch`
     	archname="${archname}-${osname}"
     elif test -f /usr/ucb/arch; then
-        archname=`/usr/ucb/arch`
+	archname=`/usr/ucb/arch`
     	archname="${archname}-${osname}"
     fi
     ;;
@@ -136,6 +139,19 @@ rm -f make.vers
 #
 # Watch out in case they have not set $cc.
 
+# Perl compiled with some combinations of GNU as and ld may not
+# be able to perform dynamic loading of extensions.  If you have a
+# problem with dynamic loading, be sure that you are using the Solaris
+# /usr/ccs/bin/as and /usr/ccs/bin/ld.  You can do that with
+#              sh Configure -Dcc='gcc -B/usr/ccs/bin/'
+# (note the trailing slash is required).
+# Combinations that are known to work with the following hints:
+#
+#  gcc-2.7.2, GNU as 2.7, GNU ld 2.7
+#  egcs-1.0.3, GNU as 2.9.1 and GNU ld 2.9.1
+#      --Andy Dougherty  <doughera@lafayette.edu>
+#      Tue Apr 13 17:19:43 EDT 1999
+
 # Get gcc to share its secrets.
 echo 'main() { return 0; }' > try.c
 	# Indent to avoid propagation to config.sh
@@ -145,7 +161,6 @@ if echo "$verbose" | grep '^Reading specs from' >/dev/null 2>&1; then
 	#
 	# Using gcc.
 	#
-	#echo Using gcc
 
 	tmp=`echo "$verbose" | grep '^Reading' |
 		awk '{print $NF}'  | sed 's/specs$/include/'`
@@ -153,48 +168,76 @@ if echo "$verbose" | grep '^Reading specs from' >/dev/null 2>&1; then
 	# Determine if the fixed-includes look like they'll work.
 	# Doesn't work anymore for gcc-2.7.2.
 
-	# See if as(1) is GNU as(1).  GNU as(1) won't work for this job.
+	# See if as(1) is GNU as(1).  GNU as(1) might not work for this job.
 	if echo "$verbose" | grep ' /usr/ccs/bin/as ' >/dev/null 2>&1; then
 	    :
 	else
 	    cat <<END >&2
 
-NOTE: You are using GNU as(1).  GNU as(1) will not build Perl.
-I'm arranging to use /usr/ccs/bin/as by including -B/usr/ccs/bin/
+NOTE: You are using GNU as(1).  GNU as(1) might not build Perl.  If you
+have trouble, you can use /usr/ccs/bin/as by including -B/usr/ccs/bin/
 in your ${cc:-cc} command.  (Note that the trailing "/" is required.)
 
 END
-	    cc="${cc:-cc} -B/usr/ccs/bin/"
+	   # Apparently not needed, at least for as 2.7 and later.
+	   # cc="${cc:-cc} -B/usr/ccs/bin/"
 	fi
 
-	# See if ld(1) is GNU ld(1).  GNU ld(1) won't work for this job.
+	# See if ld(1) is GNU ld(1).  GNU ld(1) might not work for this job.
 	# Recompute $verbose since we may have just changed $cc.
-	verbose=`${cc:-cc} -v -o try try.c 2>&1`
+	verbose=`${cc:-cc} -v -o try try.c 2>&1 | grep ld 2>&1`
+
 	if echo "$verbose" | grep ' /usr/ccs/bin/ld ' >/dev/null 2>&1; then
-	    :
+	   # Ok, gcc directly calls the Solaris /usr/ccs/bin/ld.
+	   :
+       elif echo "$verbose" | grep "ld: Software Generation Utilities" >/dev/null 2>&1; then
+	   # Hmm.  gcc doesn't call /usr/ccs/bin/ld directly, but it
+	   # does appear to be using it eventually.  egcs-1.0.3's ld
+	   # wrapper does this.
+	   # All Solaris versions of ld I've seen contain the magic
+	   # string used in the grep.
+	   :
 	else
-	    cat <<END >&2
-
-NOTE: You are using GNU ld(1).  GNU ld(1) will not build Perl.
-I'm arranging to use /usr/ccs/bin/ld by including -B/usr/ccs/bin/
+	   # No evidence yet of /usr/ccs/bin/ld.  Some versions
+	   # of egcs's ld wrapper call /usr/ccs/bin/ld in turn but
+	   # apparently don't reveal that unless you pass in -V.
+	   # (This may all depend on local configurations too.)
+
+	   myld=`echo $verbose| grep ld | awk '/\/ld/ {print $1}'`
+	   # This assumes that gcc's output will not change, and that
+	   # /full/path/to/ld will be the first word of the output.
+	   # Thus myld is something like opt/gnu/sparc-sun-solaris2.5/bin/ld
+
+	   if $myld -V 2>&1 | grep "ld: Software Generation Utilities" >/dev/null 2>&1; then
+	       # Ok, /usr/ccs/bin/ld eventually does get called.
+	       :
+	   else
+	       cat <<END >&2
+
+NOTE: You are using GNU ld(1).  GNU ld(1) might not build Perl.  If you
+have trouble, you can use /usr/ccs/bin/ld by including -B/usr/ccs/bin/
 in your ${cc:-cc} command.  (Note that the trailing "/" is required.)
 
+I will try to use GNU ld by passing in the -Wl,-E flag, but if that
+doesn't work, you should use -B/usr/ccs/bin/ instead.
+
 END
-	    cc="${cc:-cc} -B/usr/ccs/bin/"
+	       ccdlflags="$ccdlflags -Wl,-E"
+	       lddlflags="$lddlflags -W,l-E -G"
+	   fi
 	fi
 
 else
 	#
 	# Not using gcc.
 	#
-	#echo Not using gcc
 
-	# See if as(1) is GNU as(1).  GNU as(1) won't work for this job.
+	# See if as(1) is GNU as(1).  GNU might not work for this job.
 	case `as --version < /dev/null 2>&1` in
 	*GNU*)
 		cat <<END >&2
 
-NOTE: You are using GNU as(1).  GNU as(1) will not build Perl.
+NOTE: You are using GNU as(1).  GNU as(1) might not build Perl.
 You must arrange to use /usr/ccs/bin/as, perhaps by adding /usr/ccs/bin
 to the beginning of your PATH.
 
@@ -202,7 +245,7 @@ END
 		;;
 	esac
 
-	# See if ld(1) is GNU ld(1).  GNU ld(1) won't work for this job.
+	# See if ld(1) is GNU ld(1).  GNU ld(1) might not work for this job.
 	# ld --version doesn't properly report itself as a GNU tool,
 	# as of ld version 2.6, so we need to be more strict. TWP 9/5/96
 	gnu_ld=false
@@ -222,8 +265,8 @@ END
 	if $gnu_ld ; then
 		cat <<END >&2
 
-NOTE: You are apparently using GNU ld(1).  GNU ld(1) will not build Perl.
-You must arrange to use /usr/ccs/bin/ld, perhaps by adding /usr/ccs/bin
+NOTE: You are apparently using GNU ld(1).  GNU ld(1) might not build Perl.
+You should arrange to use /usr/ccs/bin/ld, perhaps by adding /usr/ccs/bin
 to the beginning of your PATH.
 
 END