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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
- CFLAGS="$1"
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([], [[return 0;]])],
- [mc_check_one_cflag=yes],
- [mc_check_one_cflag=no])
- CFLAGS=$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:
- 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])
- 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()
- ])
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