rules.mk: remove redundant target flags

We're patching the GCC specs [1], [2] to implicitly add
$STAGING_DIR/usr/lib to the linker and $STAGING_DIR/usr/include to the
CPP flags. There is no need to globally pass these as -I and -L flags
respectively.

1. https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=toolchain/gcc/final/Makefile#l86
2. https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=scripts/patch-specs.sh#l37

Ref: https://patchwork.ozlabs.org/project/openwrt/patch/20200820060637.533293-1-a.heider@gmail.com/#2511505
Suggested-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Petr Štetiar <ynezz@true.cz>

diff --git a/rules.mk b/rules.mk
index 671c8bdad8398452448e850341afef0545413e6b..adb103d81f2f9b82425071e780721659e35ffaeb 100644 (file)
--- a/rules.mk
+++ b/rules.mk
@@ -174,8 +174,6 @@ TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(
 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
-TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include
-TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)