[Buildroot] [PATCH] portmap: fix static linking

[ANDY KENNEDY]

Portmap builds and links, however, does not get built correctly when
BR2_PREFER_STATIC_LIB is selected.  There are no dynamic libraries in
rootfs.tar, however, portmap gets linked dynamically without regards to
the PREFER_STATIC_LIB tags.  LDFLAGS was not being passed into the build of
portmap.

Signed-off-by:  Andy Kennedy <andy.kennedy at adtran.com>
---
diff -Naur a/package/portmap/portmap.mk b/package/portmap/portmap.mk
--- a/package/portmap/portmap.mk	2014-02-27 14:51:23.000000000 -0600
+++ b/package/portmap/portmap.mk	2014-09-08 16:39:13.715370478 -0500
@@ -15,8 +15,7 @@
 endif
 
 define PORTMAP_BUILD_CMDS
-	CFLAGS="$(TARGET_CFLAGS)" \
-	$(MAKE) CC="$(TARGET_CC)" -C $(@D) $(PORTMAP_FLAGS)
+	$(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D) $(PORTMAP_FLAGS)
 endef