2000-11-07 Eric Christopher <echristo@redhat.com>

[pf3gnuchains/gcc-fork.git] / ltcf-c.sh

diff --git a/ltcf-c.sh b/ltcf-c.sh
index ba1f70e..6bccb11 100644 (file)
--- a/ltcf-c.sh
+++ b/ltcf-c.sh
@@ -1,7 +1,5 @@
 #### This script is meant to be sourced by ltconfig.
 
-# $Id: ltcf-c.sh,v 1.1.2.9 2000/07/24 05:28:14 oliva Exp $
-
 # ltcf-c.sh - Create a C compiler specific configuration
 #
 # Copyright (C) 1996-2000 Free Software Foundation, Inc.
@@ -92,7 +90,7 @@ EOF
       allow_undefined_flag=unsupported
       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
       # support --undefined.  This deserves some investigation.  FIXME
-      archive_cmds='$CC -nostart $libobjs $deplibs $linker_flags ${wl}-soname $wl$soname -o $lib'
+      archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
     else
       ld_shlibs=no
     fi
@@ -193,8 +191,8 @@ EOF
 
 EOF
     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
-      archive_cmds='$CC -shared $libobjs $deplibs $linker_flags ${wl}-soname $wl$soname -o $lib'
-      archive_expsym_cmds='$CC -shared $libobjs $deplibs $linker_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
     else
       ld_shlibs=no
     fi
@@ -219,8 +217,8 @@ EOF
 
   if test "$ld_shlibs" = yes; then
     runpath_var=LD_RUN_PATH
-    hardcode_libdir_flag_spec="$wlarc"'--rpath '"$wlarc"'$libdir'
-    export_dynamic_flag_spec="$wlarc"'--export-dynamic'
+    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
     case $host_os in
     cygwin* | mingw*)
       # dlltool doesn't understand --whole-archive et. al.
@@ -279,13 +277,13 @@ else
       hardcode_direct=yes
     fi
     allow_undefined_flag=' ${wl}-berok'
-    archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
-    archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
-    case "$host_os" in aix4.[01]|aix4.[01].*)
-      # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
-      always_export_symbols=yes ;;
-    esac
-   ;;
+    archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+    # -bexpall does not export symbols beginning with underscore (_)
+    always_export_symbols=yes
+    # Exported symbols can be pulled into shared objects from archives
+    whole_archive_flag_spec=' '
+    build_libtool_need_lc=yes
+    ;;
 
   amigaos*)
     archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
@@ -520,7 +518,7 @@ fi
 
 ## Compiler Characteristics: PIC flags, static flags, etc
 if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
-  echo $ac_n "(cached) $ac_c" 1>&6
+  :
 else
   ac_cv_prog_cc_pic=
   ac_cv_prog_cc_shlib=
@@ -653,29 +651,32 @@ if test "$enable_shared" = yes && test "$with_gcc" = yes; then
     # Test whether the compiler implicitly links with -lc since on some
     # systems, -lgcc has to come before -lc. If gcc already passes -lc
     # to ld, don't add -lc before -lgcc.
-    echo $ac_n "checking whether -lc is implicitly linked in... $ac_c" 1>&6
+    echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
     if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
       echo $ac_n "(cached) $ac_c" 1>&6
       need_lc=$ac_cv_archive_cmds_needs_lc
     else
       $rm conftest*
       echo "static int dummy;" > conftest.$ac_ext
-      if { (eval echo $progname:@LINENO@: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
+      if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
        # Append any warnings to the config.log.
        cat conftest.err 1>&5
        soname=conftest
        lib=conftest
        libobjs=conftest.o
        deplibs=
+       wl=$ac_cv_prog_cc_wl
        compiler_flags=-v
        linker_flags=-v
        verstring=
        output_objdir=.
        libname=conftest
+       save_allow_undefined_flag=$allow_undefined_flag
        allow_undefined_flag=
-       if { (eval echo $progname:@LINENO@: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
+       if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
          need_lc=no
        fi
+       allow_undefined_flag=$save_allow_undefined_flag
       else
        cat conftest.err 1>&5
       fi