rules_mk: use gcc versions for external toolchain

When using the OpenWrt toolchain as an external toolchain the build
failed due to missing LTO support. By choosing the GCC wrappers of
the tools this commit makes sure that the LTO-enabled executables
are being used.

Signed-off-by: Vincent Wiemann <vincent.wiemann@ironai.com>
[ wrap the commit description to 72 char ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit 2555ffb4536e2727465e9a0d426ad3c4f1ef003a)

diff --git a/rules.mk b/rules.mk
index 9c694e17ceb351f5e83284f69614f764c1587ddc..631e07af00560504836e841f5b7b18ab330451a9 100644 (file)
--- a/rules.mk
+++ b/rules.mk
@@ -245,20 +245,13 @@ HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGIN
 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
 
-ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
-  TARGET_AR:=$(TARGET_CROSS)gcc-ar
-  TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
-  TARGET_NM:=$(TARGET_CROSS)gcc-nm
-else
-  TARGET_AR:=$(TARGET_CROSS)ar
-  TARGET_RANLIB:=$(TARGET_CROSS)ranlib
-  TARGET_NM:=$(TARGET_CROSS)nm
-endif
-
 BUILD_KEY=$(TOPDIR)/key-build
 
 FAKEROOT:=$(STAGING_DIR_HOST)/bin/fakeroot
 
+TARGET_AR:=$(TARGET_CROSS)gcc-ar
+TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
+TARGET_NM:=$(TARGET_CROSS)gcc-nm
 TARGET_CC:=$(TARGET_CROSS)gcc
 TARGET_CXX:=$(TARGET_CROSS)g++
 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh