lib: Correctly pass collected AM_LDFLAGS to linker

AM_LDFLAGS is not automatically passed to individual library LDFLAGS
and must be passed in explicitly.

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>

lib/automake.mk

@@ -15,7 +15,8 @@ endif
 
 lib_libopenvswitch_la_LDFLAGS = \
         -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
-        -Wl,--version-script=$(top_builddir)/lib/libopenvswitch.sym
+        -Wl,--version-script=$(top_builddir)/lib/libopenvswitch.sym \
+        $(AM_LDFLAGS)
 
 lib_libopenvswitch_la_SOURCES = \
 	lib/aes128.c \
@@ -295,7 +296,8 @@ CLEANFILES += $(nodist_lib_libopenvswitch_la_SOURCES)
 lib_LTLIBRARIES += lib/libsflow.la
 lib_libsflow_la_LDFLAGS = \
         -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
-        -Wl,--version-script=$(top_builddir)/lib/libsflow.sym
+        -Wl,--version-script=$(top_builddir)/lib/libsflow.sym \
+        $(AM_LDFLAGS)
 lib_libsflow_la_SOURCES = \
 	lib/sflow_api.h \
 	lib/sflow.h \

ofproto/automake.mk

@@ -8,7 +8,8 @@
 lib_LTLIBRARIES += ofproto/libofproto.la
 ofproto_libofproto_la_LDFLAGS = \
         -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
-        -Wl,--version-script=$(top_builddir)/ofproto/libofproto.sym
+        -Wl,--version-script=$(top_builddir)/ofproto/libofproto.sym \
+        $(AM_LDFLAGS)
 ofproto_libofproto_la_SOURCES = \
 	ofproto/bond.c \
 	ofproto/bond.h \

ovsdb/automake.mk

@@ -2,7 +2,8 @@
 lib_LTLIBRARIES += ovsdb/libovsdb.la
 ovsdb_libovsdb_la_LDFLAGS = \
         -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
-        -Wl,--version-script=$(top_builddir)/ovsdb/libovsdb.sym
+        -Wl,--version-script=$(top_builddir)/ovsdb/libovsdb.sym \
+        $(AM_LDFLAGS)
 ovsdb_libovsdb_la_SOURCES = \
 	ovsdb/column.c \
 	ovsdb/column.h \