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build: add -Wno-error=unused-result to target cflags 

Many glibc functions have __warn_unused_result__ in so many different
core functions, and failing the build for all of those simply does not
make any sense

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Backport of r47440

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@47607 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2015-11-23 14:03:03 +00:00
parent 38af2ad2e2
commit 86605d34c4
1 changed files with 1 additions and 1 deletions
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2
rules.mk
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@ -143,7 +143,7 @@ ifndef DUMP
-include $(TOOLCHAIN_DIR)/info.mk -include $(TOOLCHAIN_DIR)/info.mk
export GCC_HONOUR_COPTS:=0 export GCC_HONOUR_COPTS:=0
TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-) TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable) TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable) -Wno-error=unused-result
TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH) TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)