toolchain-external: drop no longer needed CC_TARGET_<foo>_ variables

Since the introduction of the GCC_TARGET_<foo> variables in
arch/arch.mk in commit bd0640a2139119e2fdb4b384ebf32d1edcb0fdaa
("arch: allow GCC target options to be optionally overwritten") and
the removal of the BR2_GCC_TARGET_CPU_REVISION, the CC_TARGET_<foo>_
variables in pkg-toolchain-external.mk map 1:1 with the corresponding
GCC_TARGET_<foo> variables.

So let's drop the CC_TARGET_<foo>_ variables, and use directly the
GCC_TARGET_<foo> ones.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

toolchain/toolchain-external/pkg-toolchain-external.mk

@@ -151,14 +151,6 @@ TOOLCHAIN_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
 # Definition of the CFLAGS to use with the external toolchain, as well as the
 # common toolchain wrapper build arguments
 #
-CC_TARGET_CPU_ := $(GCC_TARGET_CPU)
-CC_TARGET_ARCH_ := $(GCC_TARGET_ARCH)
-CC_TARGET_ABI_ := $(GCC_TARGET_ABI)
-CC_TARGET_NAN_ := $(GCC_TARGET_NAN)
-CC_TARGET_FP32_MODE_ := $(GCC_TARGET_FP32_MODE)
-CC_TARGET_FPU_ := $(GCC_TARGET_FPU)
-CC_TARGET_FLOAT_ABI_ := $(GCC_TARGET_FLOAT_ABI)
-CC_TARGET_MODE_ := $(GCC_TARGET_MODE)
 
 # march/mtune/floating point mode needs to be passed to the external toolchain
 # to select the right multilib variant
@@ -166,39 +158,39 @@ ifeq ($(BR2_x86_64),y)
 TOOLCHAIN_EXTERNAL_CFLAGS += -m64
 TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_64
 endif
-ifneq ($(CC_TARGET_ARCH_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(CC_TARGET_ARCH_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARCH='"$(CC_TARGET_ARCH_)"'
+ifneq ($(GCC_TARGET_ARCH),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(CC_TARGET_ARCH)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARCH='"$(GCC_TARGET_ARCH)"'
 endif
-ifneq ($(CC_TARGET_CPU_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(CC_TARGET_CPU_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_CPU='"$(CC_TARGET_CPU_)"'
+ifneq ($(GCC_TARGET_CPU),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(GCC_TARGET_CPU)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_CPU='"$(GCC_TARGET_CPU)"'
 endif
-ifneq ($(CC_TARGET_ABI_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(CC_TARGET_ABI_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
+ifneq ($(GCC_TARGET_ABI),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(GCC_TARGET_ABI)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ABI='"$(GCC_TARGET_ABI)"'
 endif
 ifeq ($(BR2_TOOLCHAIN_HAS_MNAN_OPTION),y)
-ifneq ($(CC_TARGET_NAN_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mnan=$(CC_TARGET_NAN_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_NAN='"$(CC_TARGET_NAN_)"'
+ifneq ($(GCC_TARGET_NAN),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mnan=$(GCC_TARGET_NAN)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_NAN='"$(GCC_TARGET_NAN)"'
 endif
 endif
-ifneq ($(CC_TARGET_FP32_MODE_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mfp$(CC_TARGET_FP32_MODE_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FP32_MODE='"$(CC_TARGET_FP32_MODE_)"'
+ifneq ($(GCC_TARGET_FP32_MODE),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mfp$(GCC_TARGET_FP32_MODE)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FP32_MODE='"$(GCC_TARGET_FP32_MODE)"'
 endif
-ifneq ($(CC_TARGET_FPU_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(CC_TARGET_FPU_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FPU='"$(CC_TARGET_FPU_)"'
+ifneq ($(GCC_TARGET_FPU),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(GCC_TARGET_FPU)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FPU='"$(GCC_TARGET_FPU)"'
 endif
-ifneq ($(CC_TARGET_FLOAT_ABI_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(CC_TARGET_FLOAT_ABI_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(CC_TARGET_FLOAT_ABI_)"'
+ifneq ($(GCC_TARGET_FLOAT_ABI),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(GCC_TARGET_FLOAT_ABI)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(GCC_TARGET_FLOAT_ABI)"'
 endif
-ifneq ($(CC_TARGET_MODE_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -m$(CC_TARGET_MODE_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MODE='"$(CC_TARGET_MODE_)"'
+ifneq ($(GCC_TARGET_MODE),)
+TOOLCHAIN_EXTERNAL_CFLAGS += -m$(GCC_TARGET_MODE)
+TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MODE='"$(GCC_TARGET_MODE)"'
 endif
 ifeq ($(BR2_BINFMT_FLAT),y)
 TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt