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# Copyright 2008 Roy Marples <roy@marples.name>
# Setup some good default CFLAGS
CFLAGS?= -O2
# Default to using the C99 standard
CSTD?= c99
_CSTD_SH= if test -n "${CSTD}"; then echo "-std=${CSTD}"; else echo ""; fi
_CSTD!= ${_CSTD_SH}
CFLAGS+= ${_CSTD}$(shell ${_CSTD_SH})
# Try and use some good cc flags
_CC_FLAGS= -pedantic -Wall -Wunused -Wimplicit -Wshadow -Wformat=2 \
-Wmissing-declarations -Wno-missing-prototypes -Wwrite-strings \
-Wbad-function-cast -Wnested-externs -Wcomment -Winline \
-Wchar-subscripts -Wcast-align -Wno-format-nonliteral \
-Wdeclaration-after-statement -Wsequence-point -Wextra
_CC_FLAGS_SH= for f in ${_CC_FLAGS}; do \
if ${CC} $$f -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
then printf "%s" "$$f "; fi \
done
_CC_FLAGS!= ${_CC_FLAGS_SH}
CFLAGS+= ${_CC_FLAGS}$(shell ${CC_FLAGS_SH})
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