Do not use --version-script linker flag on OSX
Add a check to not use --version-script linker flag if compiled on OSX
since it doesn't exist there
diff --git a/src/gb/Makefile.am b/src/gb/Makefile.am
index c137766..04d2108 100644
--- a/src/gb/Makefile.am
+++ b/src/gb/Makefile.am
@@ -11,7 +11,7 @@
if ENABLE_GB
lib_LTLIBRARIES = libosmogb.la
-libosmogb_la_LDFLAGS = -Wl,--version-script=$(srcdir)/libosmogb.map -version-info $(LIBVERSION)
+libosmogb_la_LDFLAGS = $(LTLDFLAGS_OSMOGB) -version-info $(LIBVERSION)
libosmogb_la_LIBADD = \
$(top_builddir)/src/libosmocore.la \
$(top_builddir)/src/vty/libosmovty.la \