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# Copyright (c) 2008-2015 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/master/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.
# Setup some good default CFLAGS
CFLAGS?= -O2 -g
# Default to using the C99 standard
CSTD?= c99
ifneq (${CSTD},)
CFLAGS+= -std=${CSTD}
endif
# Try and use some good cc flags if we're building from git
# We don't use -pedantic as it will warn about our perfectly valid
# use of %m in our logger.
_CCFLAGS= -Wall -Wextra -Wimplicit -Wshadow -Wformat=2 \
-Wmissing-prototypes -Wmissing-declarations \
-Wmissing-noreturn -Wmissing-format-attribute \
-Wnested-externs \
-Winline -Wwrite-strings -Wcast-align -Wcast-qual \
-Wpointer-arith \
-Wdeclaration-after-statement -Wsequence-point \
-Werror=implicit-function-declaration
# We should be using -Wredundant-decls, but our library hidden proto stuff
# gives loads of warnings. I don't fully understand it (the hidden proto,
# not the warning) so we just silence the warning.
_CC_FLAGS_SH= for f in ${_CCFLAGS}; do \
if echo "int main(void) { return 0;} " | \
${CC} $$f -S -xc -o /dev/null - ; \
then printf "%s" "$$f "; fi \
done;
_CC_FLAGS:= $(shell ${_CC_FLAGS_SH})
CFLAGS+= ${_CC_FLAGS}
include ${MK}/debug.mk
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