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dnl @synopsis mc_CHECK_CFLAGS
dnl
dnl Check flags supported by C compiler
dnl
dnl @author Slava Zanko <slavazanko@gmail.com>
dnl @version 2013-01-16
dnl @license GPL
dnl @copyright Free Software Foundation, Inc.
AC_DEFUN([mc_CHECK_ONE_CFLAG],[
AC_MSG_CHECKING([whether ${CC} accepts $1])
safe_CFLAGS=$CFLAGS
case "$CC" in
clang*)
CFLAGS="-Werror $1"
;;
*)
CFLAGS="$1"
;;
esac
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [[return 0;]])],
[mc_check_one_cflag=yes],
[mc_check_one_cflag=no])
CFLAGS=$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],[
AC_LANG_PUSH(C)
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:
mc_CHECK_ONE_CFLAG([-Wassign-enum])
mc_CHECK_ONE_CFLAG([-Wbad-function-cast])
mc_CHECK_ONE_CFLAG([-Wcomment])
mc_CHECK_ONE_CFLAG([-Wconditional-uninitialized])
mc_CHECK_ONE_CFLAG([-Wdeclaration-after-statement])
mc_CHECK_ONE_CFLAG([-Wfloat-conversion])
mc_CHECK_ONE_CFLAG([-Wfloat-equal])
mc_CHECK_ONE_CFLAG([-Wformat])
mc_CHECK_ONE_CFLAG([-Wformat-security])
mc_CHECK_ONE_CFLAG([-Wformat-signedness])
mc_CHECK_ONE_CFLAG([-Wimplicit])
mc_CHECK_ONE_CFLAG([-Wimplicit-fallthrough])
mc_CHECK_ONE_CFLAG([-Wignored-qualifiers])
mc_CHECK_ONE_CFLAG([-Wlogical-not-parentheses])
mc_CHECK_ONE_CFLAG([-Wmaybe-uninitialized])
mc_CHECK_ONE_CFLAG([-Wmissing-braces])
mc_CHECK_ONE_CFLAG([-Wmissing-declarations])
mc_CHECK_ONE_CFLAG([-Wmissing-field-initializers])
mc_CHECK_ONE_CFLAG([-Wmissing-format-attribute])
mc_CHECK_ONE_CFLAG([-Wmissing-parameter-type])
mc_CHECK_ONE_CFLAG([-Wmissing-prototypes])
mc_CHECK_ONE_CFLAG([-Wmissing-variable-declarations])
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-arith])
mc_CHECK_ONE_CFLAG([-Wpointer-sign])
mc_CHECK_ONE_CFLAG([-Wredundant-decls])
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([-Wstrict-prototypes])
mc_CHECK_ONE_CFLAG([-Wswitch])
mc_CHECK_ONE_CFLAG([-Wswitch-default])
mc_CHECK_ONE_CFLAG([-Wtype-limits])
mc_CHECK_ONE_CFLAG([-Wundef])
mc_CHECK_ONE_CFLAG([-Wuninitialized])
mc_CHECK_ONE_CFLAG([-Wunreachable-code])
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])
AC_LANG_POP()
])
|
