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-rw-r--r--m4/mpd_auto.m415
1 files changed, 15 insertions, 0 deletions
diff --git a/m4/mpd_auto.m4 b/m4/mpd_auto.m4
index a35c9cf1b..3f233938f 100644
--- a/m4/mpd_auto.m4
+++ b/m4/mpd_auto.m4
@@ -21,6 +21,21 @@ AC_DEFUN([MPD_AUTO_DISABLED], [
fi
])
+dnl Check whether a prerequisite for a feature was found. This is
+dnl very similar to MPD_AUTO_RESULT, but does not finalize the
+dnl detection; it assumes that more checks will follow.
+AC_DEFUN([MPD_AUTO_PRE], [
+ name="$1"
+ var="enable_$1"
+ found="found_$name"
+ feature="$2"
+ msg="$3"
+
+ if eval "test x`echo '$'$var` != xno" && eval "test x`echo '$'$found` = xno"; then
+ MPD_AUTO_DISABLED([$name], [$feature], [$msg])
+ fi
+])
+
AC_DEFUN([MPD_AUTO_RESULT], [
name="$1"
var="enable_$1"