From 6f2eb03433bcb2d3c351efed848a1f8554a7ff78 Mon Sep 17 00:00:00 2001
From: Karel Zak
Date: Mon, 20 Feb 2017 14:17:37 +0100
Subject: build-sys: fix --disable-all-programs --enable-schedutils

* add UL_ENABLE_ALIAS(NAME, MASTERNAME) to initialize $enable_<name>
  according to MASTERNAME. Note that we have to use $build_<mastername>,
  the $enable_<mastername> is just AC_ARG_ENABLE() stuff only. The
  $build_ is evaluated and modified by our UL_...() functions.

* add enable-schedutils.conf to have build-system regression test for
  this use-case

Addresses: https://github.com/karelzak/util-linux/issues/415
Signed-off-by: Karel Zak <kzak@redhat.com>
---
 m4/ul.m4 | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'm4')

diff --git a/m4/ul.m4 b/m4/ul.m4
index f8a0dd7cb..ed7227c51 100644
--- a/m4/ul.m4
+++ b/m4/ul.m4
@@ -429,6 +429,21 @@ AC_DEFUN([UL_DEFAULT_ENABLE], [
   fi
 ])
 
+
+dnl UL_ENABLE_ALIAS(NAME, MASTERNAME)
+dnl
+dnl Initializes $enable_<name> variable according to $build_<mastername>.  This
+dnl is usefull for example if you want to use one --enable-mastername option
+dnl for group of programs.
+dnl
+AC_DEFUN([UL_ENABLE_ALIAS], [
+  m4_define([suffix], $1)
+  m4_define([mastersuffix], $2)
+
+  enable_[]suffix=$build_[]mastersuffix
+])
+
+
 dnl UL_NCURSES_CHECK(NAME)
 dnl
 dnl Initializes $have_<name>, NCURSES_LIBS and NCURSES_CFLAGS variables according to
-- 
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