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>
This commit is contained in:
Vincent Wiemann 2020-12-28 16:00:13 +01:00 committed by Christian Marangi
parent 0f301b0b1d
commit 2555ffb453
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@ -243,20 +243,13 @@ HOST_CXXFLAGS:=
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