diff options
Diffstat (limited to 'm4.include/mc-cflags.m4')
| -rw-r--r-- | m4.include/mc-cflags.m4 | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/m4.include/mc-cflags.m4 b/m4.include/mc-cflags.m4 new file mode 100644 index 0000000..264f5c1 --- /dev/null +++ b/m4.include/mc-cflags.m4 @@ -0,0 +1,90 @@ +dnl @synopsis mc_CHECK_CFLAGS +dnl +dnl Check flags supported by C compiler +dnl +dnl @author Slava Zanko <slavazanko@gmail.com> +dnl @modified by Andrew Borodin <aborodin@vmail.ru> +dnl @version 2021-09-19 +dnl @license GPL +dnl @copyright Free Software Foundation, Inc. + +AC_DEFUN([mc_CHECK_CFLAGS],[ + AC_LANG_PUSH(C) + + mc_configured_cflags="" + +dnl AC_MSG_CHECKING([CC is $CC]) + + dnl https://stackoverflow.com/questions/52557417/how-to-check-support-compile-flag-in-autoconf-for-clang + case "$CC" in + clang*) + EXTRA_OPTION="-Werror" + ;; + *) + EXTRA_OPTION="" + ;; + esac + + dnl Sorted -f options: + case "$CC" in + gcc*) + AX_APPEND_COMPILE_FLAGS([-fdiagnostics-show-option], [mc_configured_cflags]) +dnl AX_APPEND_COMPILE_FLAGS([-fno-stack-protector], [mc_configured_cflags]) + ;; + *) + ;; + esac + + dnl Sorted -W options: + AX_APPEND_COMPILE_FLAGS([-Wassign-enum], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wcomment], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wconditional-uninitialized], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wdeclaration-after-statement], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wfloat-conversion], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wfloat-equal], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wformat], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wformat-security], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wformat-signedness], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wimplicit], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wimplicit-fallthrough], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wignored-qualifiers], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wlogical-not-parentheses], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-braces], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-format-attribute], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-parameter-type], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wmissing-variable-declarations], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wnested-externs], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wno-long-long], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wno-unreachable-code], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wparentheses], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wpointer-arith], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wpointer-sign], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wredundant-decls], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wreturn-type], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wsequence-point], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wshadow], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wsign-compare], [mc_configured_cflags], [$EXTRA_OPTION]) +dnl AX_APPEND_COMPILE_FLAGS([-Wstrict-aliasing], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wswitch], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wswitch-default], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wtype-limits], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wundef], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wuninitialized], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunreachable-code], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-but-set-variable], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-function], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-label], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-parameter], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-result], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-value], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wunused-variable], [mc_configured_cflags], [$EXTRA_OPTION]) + AX_APPEND_COMPILE_FLAGS([-Wwrite-strings], [mc_configured_cflags], [$EXTRA_OPTION]) + + AC_LANG_POP() +]) |