From: Andy Dougherty Date: Wed, 14 Apr 1999 17:07:43 +0000 (-0400) Subject: Re: 5.005_03 and gcc, GNU ld under Solaris 2.6 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=e766ed8d577f6250eac8e2117e3abcd03a4bacb9;p=p5sagit%2Fp5-mst-13.2.git Re: 5.005_03 and gcc, GNU ld under Solaris 2.6 To: Hugo van der Sanden Cc: Perl Porters Message-Id: p4raw-id: //depot/cfgperl@3261 --- diff --git a/hints/solaris_2.sh b/hints/solaris_2.sh index ad84669..21e51d1 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 +# Last modified: Tue Apr 13 13:12:49 EDT 1999 +# Andy Dougherty # Based on input from lots of folks, especially # Dean Roehrich @@ -9,7 +9,10 @@ # 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 @@ -140,6 +143,19 @@ cat > UU/cc.cbu <<'EOSH' # # Watch out in case they have not set $cc. +# Perl compiled with some combinations of GNU as and ld may not +# be able to perform dynamic loading of extensions. If you have a +# problem with dynamic loading, be sure that you are using the Solaris +# /usr/ccs/bin/as and /usr/ccs/bin/ld. You can do that with +# sh Configure -Dcc='gcc -B/usr/ccs/bin/' +# (note the trailing slash is required). +# Combinations that are known to work with the following hints: +# +# gcc-2.7.2, GNU as 2.7, GNU ld 2.7 +# egcs-1.0.3, GNU as 2.9.1 and GNU ld 2.9.1 +# --Andy Dougherty +# Tue Apr 13 17:19:43 EDT 1999 + # Get gcc to share its secrets. echo 'main() { return 0; }' > try.c # Indent to avoid propagation to config.sh @@ -149,7 +165,6 @@ if echo "$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/'` @@ -157,67 +172,76 @@ 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 <&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 | 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 - # It's not /usr/ccs/bin/ld - but it might be egcs's ld wrapper, - # which calls /usr/ccs/bin/ld in turn. Passing -V to it will - # make it show its true colors. + # 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. - - # all Solaris versions of ld I've seen contain the magic - # string used in the grep below. - if $myld -V 2>&1 | grep "ld: Software Generation Utilities" >/dev/null 2>&1; then - cat <&2 - -Aha. You're using egcs and /usr/ccs/bin/ld. - -END - - else - cat <&2 + # 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 <&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/ +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/" - fi + 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 <&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. @@ -225,7 +249,7 @@ 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 @@ -245,8 +269,8 @@ END if $gnu_ld ; then cat <&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