diff options
Diffstat (limited to 'm4/ul.m4')
| -rw-r--r-- | m4/ul.m4 | 30 |
1 files changed, 30 insertions, 0 deletions
@@ -182,6 +182,36 @@ AC_DEFUN([UL_REQUIRES_HAVE], [ fi ]) + +dnl +dnl UL_CONFLICTS_BUILD(NAME, ANOTHER, ANOTHERDESC [VARSUFFIX=$1]) +dnl +dnl - ends with error if $enable_<name> and $build_<another> +dnl are both set to 'yes' +dnl - sets $build_<name> to 'no' if $build_<another> is 'yes' and +dnl $enable_<name> is 'check' or 'no' +dnl +dnl The <havedesc> is description used for warning/error +dnl message (e.g. "function"). +dnl +dnl The default <name> for $build_ and $enable_ could be overwrited by option $3. +dnl +AC_DEFUN([UL_CONFLICTS_BUILD], [ + m4_define([suffix], m4_default([$4],$1)) + + if test "x$[build_]suffix" != xno; then + case $[enable_]suffix:$[build_]$2 in #( + no:*) + [build_]suffix=no ;; + check:yes) + [build_]suffix=no ;; + yes:yes) + AC_MSG_ERROR([$1 selected, but it conflicts with $3]);; + esac + fi +]) + + dnl UL_REQUIRES_BUILD(NAME, BUILDNAME, [VARSUFFIX=$1]) dnl dnl Modifies $build_<name> variable according to $enable_<name> and $have_funcname. |