teach libtool about export_dynamic_flag_spec for ELF-based archs.

devel/glib/patches/patch-ah

@@ -1,5 +1,5 @@
 --- ltconfig.orig	Fri Feb  4 13:30:02 2000
-+++ ltconfig	Tue Oct 24 18:48:01 2000
++++ ltconfig	Fri Jan 12 05:12:36 2001
 @@ -1105,6 +1105,9 @@
      with_gnu_ld=no
    fi
@@ -10,7 +10,7 @@
  
  esac
  
-@@ -1396,10 +1399,18 @@
+@@ -1396,10 +1399,21 @@
      ;;
  
    openbsd*)
@@ -19,19 +19,22 @@
      hardcode_direct=yes
      hardcode_shlibpath_var=no
 +    case "$host_os" in
-+      openbsd2.[01234567])
++      openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
 +	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'
 +	hardcode_libdir_flag_spec='-R$libdir'
 +      ;;
 +      *)
 +	archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $linkopts'
 +	hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
++	 if [ "`/usr/bin/file /usr/lib/libc.so.* | grep ELF`" != "" ]; then
++	   export_dynamic_flag_spec='${wl}-E'
++	 fi
 +      ;;
 +    esac
      ;;
  
    os2*)
-@@ -1997,13 +2008,10 @@
+@@ -1997,13 +2011,10 @@
  
  openbsd*)
    version_type=sunos