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| author | Max Kellermann <max@duempel.org> | 2013-08-06 23:25:57 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2013-08-06 23:32:21 +0200 |
| commit | 47e16dbee3d43a8fac8e2337df442814ec6d036b (patch) | |
| tree | 011c45b1d151425adaef1168fcf6ba7238d6e82a /m4/mpd_func.m4 | |
| parent | 66f678023f6e18dde9679d0a69565d6a50d09ed4 (diff) | |
configure.ac: add option --enable-eventfd
Remove the runtime check for eventfd(), hard-code the feature once
it's been selected at compile time. The class WakeFD is splitted into
EventFD and EventPipe, using WakeFD as a macro diversion.
Diffstat (limited to 'm4/mpd_func.m4')
| -rw-r--r-- | m4/mpd_func.m4 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/m4/mpd_func.m4 b/m4/mpd_func.m4 new file mode 100644 index 000000000..c4650336b --- /dev/null +++ b/m4/mpd_func.m4 @@ -0,0 +1,12 @@ +dnl MPD_OPTIONAL_FUNC(func, macro) +dnl +dnl Allow the user to enable or disable the use of a function. If the +dnl option is not specified, the function is auto-detected. +AC_DEFUN([MPD_OPTIONAL_FUNC], [ + AC_ARG_ENABLE([$1], + AS_HELP_STRING([--enable-$1], + [use the function "$1()" (default: auto)]), + [test xenable_$1 = xyes && AC_DEFINE([$2], 1, [Define to use $1()])], + [AC_CHECK_FUNC([$1], + [AC_DEFINE([$2], 1, [Define to use $1()])],)]) +]) |