mc/m4.include/mc-cflags.m4

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dnl @synopsis MC_CHECK_CFLAGS
dnl
dnl Check flags supported by compilator
dnl
dnl @author Slava Zanko <slavazanko@gmail.com>
dnl @version 2009-10-29
dnl @license GPL
dnl @copyright Free Software Foundation, Inc.
AC_DEFUN([MC_CHECK_ONE_CFLAG],[
AC_MSG_CHECKING([if gcc accepts $1])
safe_CFLAGS=$CFLAGS
CFLAGS="$1"
AC_TRY_COMPILE(, [
return 0;
],
[
mc_check_one_cflag=yes
],
[
mc_check_one_cflag=no
])
CFLAGS=$safe_CFLAGS
AC_MSG_RESULT([$mc_check_one_cflag])
if test x$mc_check_one_cflag = xyes; then
mc_configured_cflags="$mc_configured_cflags $1"
fi
])
AC_DEFUN([MC_CHECK_CFLAGS],[
mc_configured_cflags=""
dnl Sorted -f options:
dnl AC_MSG_CHECKING([CC is $CC])
case "$CC" in
gcc*)
MC_CHECK_ONE_CFLAG([-fdiagnostics-show-option])
dnl MC_CHECK_ONE_CFLAG([-fno-stack-protector])
;;
*)
;;
esac
dnl Sorted -W options:
dnl MC_CHECK_ONE_CFLAG([-Wbad-function-cast])
MC_CHECK_ONE_CFLAG([-Wcomment])
MC_CHECK_ONE_CFLAG([-Wdeclaration-after-statement])
MC_CHECK_ONE_CFLAG([-Wfloat-equal])
MC_CHECK_ONE_CFLAG([-Wformat])
MC_CHECK_ONE_CFLAG([-Wformat-security])
MC_CHECK_ONE_CFLAG([-Wimplicit])
MC_CHECK_ONE_CFLAG([-Wignored-qualifiers])
MC_CHECK_ONE_CFLAG([-Wmissing-braces])
MC_CHECK_ONE_CFLAG([-Wmissing-declarations])
MC_CHECK_ONE_CFLAG([-Wmissing-parameter-type])
MC_CHECK_ONE_CFLAG([-Wmissing-prototypes])
MC_CHECK_ONE_CFLAG([-Wnested-externs])
MC_CHECK_ONE_CFLAG([-Wno-long-long])
MC_CHECK_ONE_CFLAG([-Wno-unreachable-code])
MC_CHECK_ONE_CFLAG([-Wparentheses])
MC_CHECK_ONE_CFLAG([-Wpointer-sign])
MC_CHECK_ONE_CFLAG([-Wreturn-type])
MC_CHECK_ONE_CFLAG([-Wsequence-point])
MC_CHECK_ONE_CFLAG([-Wshadow])
MC_CHECK_ONE_CFLAG([-Wsign-compare])
dnl MC_CHECK_ONE_CFLAG([-Wstrict-aliasing])
MC_CHECK_ONE_CFLAG([-Wswitch])
MC_CHECK_ONE_CFLAG([-Wtype-limits])
MC_CHECK_ONE_CFLAG([-Wuninitialized])
dnl MC_CHECK_ONE_CFLAG([-Wunused-but-set-variable])
MC_CHECK_ONE_CFLAG([-Wunused-function])
MC_CHECK_ONE_CFLAG([-Wunused-label])
MC_CHECK_ONE_CFLAG([-Wunused-parameter])
MC_CHECK_ONE_CFLAG([-Wunused-result])
MC_CHECK_ONE_CFLAG([-Wunused-value])
MC_CHECK_ONE_CFLAG([-Wunused-variable])
MC_CHECK_ONE_CFLAG([-Wwrite-strings])
])