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-rw-r--r--m4/mpd_func.m413
1 files changed, 13 insertions, 0 deletions
diff --git a/m4/mpd_func.m4 b/m4/mpd_func.m4
index d12d27062..5f2bf8f3d 100644
--- a/m4/mpd_func.m4
+++ b/m4/mpd_func.m4
@@ -10,3 +10,16 @@ AC_DEFUN([MPD_OPTIONAL_FUNC], [
[AC_CHECK_FUNC([$2],
[AC_DEFINE([$3], 1, [Define to use $1])],)])
])
+
+dnl MPD_OPTIONAL_FUNC_NODEF(name, func)
+dnl
+dnl Allow the user to enable or disable the use of a function.
+dnl Works similar to MPD_OPTIONAL_FUNC, however MPD_OPTIONAL_FUNC_NODEF
+dnl does not invoke AC_DEFINE when function is enabled. Shell variable
+dnl enable_$name is set to "yes" instead.
+AC_DEFUN([MPD_OPTIONAL_FUNC_NODEF], [
+ AC_ARG_ENABLE([$1],
+ AS_HELP_STRING([--enable-$1],
+ [use the function "$1" (default: auto)]),,
+ [AC_CHECK_FUNC([$2], [enable_$1=yes],)])
+])