mirror of
https://gitlab.freedesktop.org/libbsd/libbsd.git
synced 2025-01-23 18:42:30 +01:00
25 lines
832 B
Plaintext
25 lines
832 B
Plaintext
|
# Copyright © 2021 Guillem Jover <guillem@hadrons.org>
|
||
|
|
|
||
|
|
# LIBBSD_CHECK_COMPILER_FLAG
|
||
|
|
# -------------------------
|
||
|
|
AC_DEFUN([LIBBSD_CHECK_COMPILER_FLAG], [
|
||
|
|
AS_VAR_PUSHDEF([libbsd_varname_cache], [libbsd_cv_cflags_$1])
|
||
|
|
AC_CACHE_CHECK([whether $CC accepts $1], [libbsd_varname_cache], [
|
||
|
|
m4_define([libbsd_check_flag], m4_bpatsubst([$1], [^-Wno-], [-W]))
|
||
|
|
AS_VAR_COPY([libbsd_save_CFLAGS], [CFLAGS])
|
||
|
|
AS_VAR_SET([CFLAGS], ["-Werror libbsd_check_flag"])
|
||
|
|
AC_COMPILE_IFELSE([
|
||
|
|
AC_LANG_SOURCE([[]])
|
||
|
|
], [
|
||
|
|
AS_VAR_SET([libbsd_varname_cache], [yes])
|
||
|
|
], [
|
||
|
|
AS_VAR_SET([libbsd_varname_cache], [no])
|
||
|
|
])
|
||
|
|
AS_VAR_COPY([CFLAGS], [libbsd_save_CFLAGS])
|
||
|
|
])
|
||
|
|
AS_VAR_IF([libbsd_varname_cache], [yes], [
|
||
|
|
AS_VAR_APPEND([LIBBSD_COMPILER_FLAGS], [" $1"])
|
||
|
|
])
|
||
|
|
AS_VAR_POPDEF([libbsd_varname_cache])
|
||
|
|
])
|