re PR libobjc/30445 (Fix for FIXME in gcc-4_2-branch/libobjc/Makefile.in)

	PR libobjc/30445
	* configure.ac (extra_ldflags_libobjc): Define appropriately for
	Cygwin and MinGW hosts.
	* Makefile.am (libobjc_s.a): Remove dead pre-libtool target.
	(libobjc.dll): Likewise.
	* configure: Regenerate.

From-SVN: r157662

libobjc/ChangeLog

+2010-03-23  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+	PR libobjc/30445
+	* configure.ac (extra_ldflags_libobjc): Define appropriately for
+	Cygwin and MinGW hosts.
+	* Makefile.am (libobjc_s.a): Remove dead pre-libtool target.
+	(libobjc.dll): Likewise.
+	* configure: Regenerate.
+
 2009-12-05  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	* configure: Regenerate.

libobjc/Makefile.in

@@ -291,35 +291,6 @@ libobjc_gc$(libsuffix).la: $(OBJS_GC)
 		-version-info $(LIBOBJC_GC_VERSION) $(extra_ldflags_libobjc) \
 		$(LTLDFLAGS)
 
-#
-# FIXME -- The following part does not fit in the libtool context. 
-# Libtool is supposed to [going to] be able to create a win 32 DLL 
-# without extra code but since I don't have a win machine to test 
-# if it already works, I leave the old code here.
-#
-libobjc_s.a: libobjc.la
-	mv libobjc.a libobjc_s.a
-
-# Create a relocatable DLL
-libobjc.dll: libobjc_s.a libobjc_entry.o
-	$(CC) -mdll -Wl,--base-file -Wl,libobjc.base \
-		-o libobjc.dll libobjc_s.a libobjc_entry.o -lkernel32
-	$(DLLTOOL) --dllname libobjc.dll --def $(srcdir)/libobjc.def \
-		--base-file libobjc.base --output-exp libobjc.exp
-	$(GCC_FOR_TARGET) -mdll -Wl,--base-file libobjc.base libobjc.exp \
-		-o libobjc.dll libobjc_s.a libobjc_entry.o -lkernel32
-	$(DLLTOOL) --dllname libobjc.dll --def $(srcdir)/libobjc.def \
-		--base-file libobjc.base --output-exp libobjc.exp
-	$(GCC_FOR_TARGET) libobjc.exp -mdll \
-		-o libobjc.dll libobjc_s.a libobjc_entry.o -lkernel32
-	$(DLLTOOL) --dllname libobjc.dll --def $(srcdir)/libobjc.def \
-		--output-lib libobjc.a
-#
-#
-#
-#
-#
-
 info:
 dvi:
 pdf:

libobjc/configure

@@ -3321,6 +3321,10 @@ case "${host}" in
     # Darwin needs -single_module when linking libobjc
     extra_ldflags_libobjc=-Wl,-single_module
     ;;
+  *-cygwin*|*-mingw*)
+    # Tell libtool to build DLLs on Windows
+    extra_ldflags_libobjc='-no-undefined -bindir $(bindir)'
+    ;;
 esac
 
 
@@ -10562,7 +10566,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10565 "configure"
+#line 10569 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10668,7 +10672,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10671 "configure"
+#line 10675 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11242,7 +11246,7 @@ if test "${enable_sjlj_exceptions+set}" = set; then :
   enableval=$enable_sjlj_exceptions; :
 else
   cat > conftest.$ac_ext << EOF
-#line 11245 "configure"
+#line 11249 "configure"
 @interface Frob
 @end
 @implementation Frob

libobjc/configure.ac

@@ -161,6 +161,10 @@ case "${host}" in
     # Darwin needs -single_module when linking libobjc
     extra_ldflags_libobjc=-Wl,-single_module
     ;;
+  *-cygwin*|*-mingw*)
+    # Tell libtool to build DLLs on Windows
+    extra_ldflags_libobjc='-no-undefined -bindir $(bindir)'
+    ;;
 esac
 AC_SUBST(extra_ldflags_libobjc)