swconfig: Activate LTO compile option

This decreases the size of the swconfig application by 25% on MIPS BE.

old:
16,916 /sbin/swconfig

new:
12,565 /sbin/swconfig

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit e926681387891fe9af89d884ebc3dce4c8c7f450)

diff --git a/package/network/config/swconfig/Makefile b/package/network/config/swconfig/Makefile
index 8b1d6cd64ae5909e877c70cfffb96077b95dd6e7..4d3e572d824a6ad03dbf21922408f80da3ddc541 100644 (file)
--- a/package/network/config/swconfig/Makefile
+++ b/package/network/config/swconfig/Makefile
@@ -23,6 +23,9 @@ define Package/swconfig
   TITLE:=Switch configuration utility
 endef
 
+TARGET_CFLAGS += -flto
+TARGET_LDFLAGS += -flto=jobserver
+
 TARGET_CPPFLAGS := \
        -D_GNU_SOURCE \
        -I$(STAGING_DIR)/usr/include/libnl-tiny \