ltcf-c.sh: Add support for --no-undefined under GNU/Linux.

	* ltcf-c.sh: Add support for --no-undefined under GNU/Linux.
	* ltcf-cxx.sh: Likewise.

From-SVN: r39477

ChangeLog

 2001-02-05  Mark Mitchell  <mark@codesourcery.com>
 
+	* ltcf-c.sh: Add support for --no-undefined under GNU/Linux.
+	* ltcf-cxx.sh: Likewise.
+
 	* config.if: Assume enable_libstdcxx_v3 is defined.
 
 2001-02-04  Mark Mitchell  <mark@codesourcery.com>

ltcf-c.sh

@@ -207,8 +207,9 @@ EOF
 
   *)
     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
-      archive_cmds='$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 $lib'
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${allow_undefined_flag} ${wl}-soname $wl$soname -o $lib'
+      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${allow_undefined_flag} ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      no_undefined_flag='${wl}--no-undefined'
     else
       ld_shlibs=no
     fi

ltcf-cxx.sh

@@ -73,8 +73,9 @@ if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (ev
       egrep 'GNU ld' > /dev/null; then
     with_gnu_ld=yes
 
-    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
-    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${allow_undefined_flag} ${wl}-soname $wl$soname -o $lib'
+    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${allow_undefined_flag} ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+    no_undefined_flag='${wl}--no-undefined'
 
     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
     export_dynamic_flag_spec='${wl}--export-dynamic'