688566c535
Avoids issues with missing prototypes causing truncation of pointers. Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
45 lines
1.6 KiB
Makefile
45 lines
1.6 KiB
Makefile
# Copyright (c) 2008-2015 The OpenRC Authors.
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# See the Authors file at the top-level directory of this distribution and
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# https://github.com/OpenRC/openrc/blob/master/AUTHORS
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#
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# This file is part of OpenRC. It is subject to the license terms in
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# the LICENSE file found in the top-level directory of this
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# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
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# This file may not be copied, modified, propagated, or distributed
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# except according to the terms contained in the LICENSE file.
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# Setup some good default CFLAGS
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CFLAGS?= -O2 -g
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# Default to using the C99 standard
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CSTD?= c99
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ifneq (${CSTD},)
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CFLAGS+= -std=${CSTD}
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endif
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# Try and use some good cc flags if we're building from git
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# We don't use -pedantic as it will warn about our perfectly valid
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# use of %m in our logger.
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_CCFLAGS= -Wall -Wextra -Wimplicit -Wshadow -Wformat=2 \
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-Wmissing-prototypes -Wmissing-declarations \
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-Wmissing-noreturn -Wmissing-format-attribute \
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-Wnested-externs \
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-Winline -Wwrite-strings -Wcast-align -Wcast-qual \
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-Wpointer-arith \
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-Wdeclaration-after-statement -Wsequence-point \
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-Werror=implicit-function-declaration
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# We should be using -Wredundant-decls, but our library hidden proto stuff
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# gives loads of warnings. I don't fully understand it (the hidden proto,
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# not the warning) so we just silence the warning.
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_CC_FLAGS_SH= for f in ${_CCFLAGS}; do \
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if echo "int main(void) { return 0;} " | \
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${CC} $$f -S -xc -o /dev/null - ; \
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then printf "%s" "$$f "; fi \
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done;
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_CC_FLAGS:= $(shell ${_CC_FLAGS_SH})
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CFLAGS+= ${_CC_FLAGS}
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include ${MK}/debug.mk
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