From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 11 Jul 2018 17:21:08 +0000 (+0200)
Subject: iw: compile with LTO enabled
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=3b329525369e4f30664fcaedd944c672af87c285;p=openwrt%2Fstaging%2Fjow.git

iw: compile with LTO enabled

Reduces .ipk size on MIPS from 34k to 33k

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(backported from ef16a394d2b24a363b50b5b4720cb23fe156c9da)
---

diff --git a/package/network/utils/iw/Makefile b/package/network/utils/iw/Makefile
index a11768268c..ef39ee6724 100644
--- a/package/network/utils/iw/Makefile
+++ b/package/network/utils/iw/Makefile
@@ -47,7 +47,8 @@ TARGET_CPPFLAGS:= \
 	-I$(STAGING_DIR)/usr/include/libnl-tiny \
 	$(TARGET_CPPFLAGS) \
 	-DCONFIG_LIBNL20 \
-	-D_GNU_SOURCE
+	-D_GNU_SOURCE \
+	-flto
 
 ifeq ($(BUILD_VARIANT),full)
   TARGET_CPPFLAGS += -DIW_FULL
@@ -56,7 +57,7 @@ endif
 
 MAKE_FLAGS += \
 	CFLAGS="$(TARGET_CPPFLAGS) $(TARGET_CFLAGS) -ffunction-sections -fdata-sections" \
-	LDFLAGS="$(TARGET_LDFLAGS) -Wl,--gc-sections" \
+	LDFLAGS="$(TARGET_LDFLAGS) -Wl,--gc-sections -flto" \
 	NL1FOUND="" NL2FOUND=Y \
 	NLLIBNAME="libnl-tiny" \
 	LIBS="-lm -lnl-tiny" \