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/gsm/Makefile.am b/src/gsm/Makefile.am
index b72a8d4..0544e0a 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -21,7 +21,7 @@
milenage/aes-encblock.c milenage/aes-internal.c \
milenage/aes-internal-enc.c milenage/milenage.c gan.c
-libosmogsm_la_LDFLAGS = -Wl,--version-script=$(srcdir)/libosmogsm.map -version-info $(LIBVERSION)
+libosmogsm_la_LDFLAGS = $(LTLDFLAGS_OSMOGSM) -version-info $(LIBVERSION)
libosmogsm_la_LIBADD = $(top_builddir)/src/libosmocore.la
EXTRA_DIST = libosmogsm.map