1 # Copyright 2008 Roy Marples <roy (a] marples.name> 2 3 # Setup some good default CFLAGS 4 CFLAGS?= -Os 5 6 # Default to using the C99 standard 7 CSTD?= c99 8 _CSTD_SH= if test -n "${CSTD}"; then echo "-std=${CSTD}"; else echo ""; fi 9 _CSTD!= ${_CSTD_SH} 10 CFLAGS+= ${_CSTD}$(shell ${_CSTD_SH}) 11 12 # Try and use some good cc flags if we're building from git 13 _CCFLAGS= -pedantic -Wall -Wunused -Wimplicit -Wshadow -Wformat=2 \ 14 -Wmissing-declarations -Wno-missing-prototypes -Wwrite-strings \ 15 -Wbad-function-cast -Wnested-externs -Wcomment -Winline \ 16 -Wchar-subscripts -Wcast-align -Wno-format-nonliteral \ 17 -Wdeclaration-after-statement -Wsequence-point -Wextra 18 _CC_FLAGS_SH= if ! test -d .git; then echo ""; else for f in ${_CCFLAGS}; do \ 19 if ${CC} $$f -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \ 20 then printf "%s" "$$f "; fi \ 21 done; fi 22 _CC_FLAGS!= ${_CC_FLAGS_SH} 23 CFLAGS+= ${_CC_FLAGS}$(shell ${_CC_FLAGS_SH}) 24 25 _GGDB_SH= if test "${DEBUG}" = "yes"; then echo "-ggdb -DDEBUG"; else echo ""; fi 26 _GGDB!= ${_GGDB_SH} 27 GGDB= ${_GGDB}$(shell ${_GGDB_SH}) 28 CFLAGS+= ${GGDB} 29
