configure.in: Add shared library support for the Hurd (*-*-gnu*).

        * configure.in: Add shared library support for the Hurd
        (*-*-gnu*).
        * config/gnu.ml: New file.

From-SVN: r26942

libstdc++/ChangeLog

+1999-05-15  Mark Kettenis  <kettenis@gnu.org>
+
+	* configure.in: Add shared library support for the Hurd
+	(*-*-gnu*).
+	* config/gnu.ml: New file.
+
 1999-05-12  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* configure.in (compiler_name): Don't do the skip-this-dir thing

libstdc++/config/gnu.ml

+# Elf with shared libm, so we can link it into the shared libstdc++.
+
+LIBS    = $(ARLIB) $(ARLINK) $(SHLIB) $(SHLINK)
+SHFLAGS = -Wl,-soname,$(SHLIB)
+SHDEPS  = -lm
+DEPLIBS = ../$(SHLIB)

libstdc++/configure.in

@@ -92,6 +92,7 @@ if [ "${shared}" = "yes" ]; then
     *-*-sunos4*)	frags="${frags} sunos4.ml" ;;
     *-*-aix*)		frags="${frags} aix.ml" ;;
     i[3456]86-*-interix*)	frags="${frags} x86-interix.ml" ;;
+    *-*-gnu*)		frags="${frags} gnu.ml" ;;
   esac
 fi