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# Copyright 2024 Alejandro Colomar <alx@kernel.org>
# SPDX-License-Identifier: LGPL-3.0-only WITH LGPL-3.0-linking-exception
ifndef MAKEFILE_CONFIGURE_BUILD_DEPENDS_CC_INCLUDED
MAKEFILE_CONFIGURE_BUILD_DEPENDS_CC_INCLUDED := 1
include $(MAKEFILEDIR)/configure/build-depends/coreutils.mk
include $(MAKEFILEDIR)/configure/build-depends/grep.mk
include $(MAKEFILEDIR)/configure/build-depends/sed.mk
CC := gcc
CC_VENDOR := \
$(shell \
$(CC) -v 2>&1 \
| $(SED) -n '1p;$$p' \
| $(SED) '/gcc version/s/.*/gcc/' \
| $(SED) '/clang version/s/.*/clang/' \
| $(SED) '/Apple LLVM version/s/.*/clang/' \
| $(GREP) -e '^gcc$$' -e '^clang$$' \
|| $(ECHO) unknown; \
)
COMMON_CFLAGS := \
-O3 \
-flto \
-Wall \
-Wextra \
-Werror \
-Wstrict-prototypes \
-Wdeclaration-after-statement \
-Wno-error=unused-parameter \
-Wno-error=sign-compare \
-Wno-error=format \
-Wno-error=uninitialized
GCC_CFLAGS := -fanalyzer
CLANG_CFLAGS := \
-Weverything \
-Wno-unsafe-buffer-usage
DEFAULT_CFLAGS := $(COMMON_CFLAGS)
ifeq ($(CC_VENDOR),gcc)
DEFAULT_CFLAGS += $(GCC_CFLAGS)
else ifeq ($(CC_VENDOR),clang)
DEFAULT_CFLAGS += $(CLANG_CFLAGS)
endif
EXTRA_CFLAGS :=
CFLAGS := $(DEFAULT_CFLAGS) $(EXTRA_CFLAGS)
endif # include guard
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