Darwin specific update for Configure and Makefile.shared.

Makefile.shared

diff --git a/Makefile.shared b/Makefile.shared
index 9e9b28e..1b14dd1 100644
--- a/Makefile.shared
+++ b/Makefile.shared
@@ -202,6 +202,7 @@
 	SHLIB_SUFFIX=.dylib; \
 	ALLSYMSFLAGS='-all_load'; \
 	NOALLSYMSFLAGS=''; \
+	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS)"; \
 	if [ -n "$(LIBVERSION)" ]; then \
 		SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 	fi; \
@@ -215,6 +216,7 @@
 	SHLIB_SUFFIX=.dylib; \
 	ALLSYMSFLAGS='-all_load'; \
 	NOALLSYMSFLAGS=''; \
+	SHAREDFLAGS="$(CFLAGS) $(SHARED_LDFLAGS)"; \
 	if [ -n "$(LIBVERSION)" ]; then \
 		SHAREDFLAGS="$$SHAREDFLAGS -current_version $(LIBVERSION)"; \
 	fi; \