Merge branch 'branch-1.13.2' into maint

[platform/upstream/automake.git] / m4 / vala.m4

diff --git a/m4/vala.m4 b/m4/vala.m4
index 7155176..c0104f1 100644 (file)
--- a/m4/vala.m4
+++ b/m4/vala.m4
@@ -1,14 +1,20 @@
 # Autoconf support for the Vala compiler
 
-# Copyright (C) 2008-2012 Free Software Foundation, Inc.
+# Copyright (C) 2008-2013 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# Check whether the Vala compiler exists in $PATH. If it is found, the
-# variable VALAC is set. Optionally a minimum release number of the
-# compiler can be requested.
+# Check whether the Vala compiler exists in $PATH.  If it is found, the
+# variable VALAC is set pointing to its absolute path.  Otherwise, it is
+# simply set to 'valac'.
+# Optionally a minimum release number of the compiler can be requested.
+# If the ACTION-IF-FOUND parameter is given, it will be run if a proper
+# Vala compiler is found.
+# Similarly, if the ACTION-IF-FOUND is given, it will be run if no proper
+# Vala compiler is found.  It defaults to simply print a warning about the
+# situation, but otherwise proceeding with the configuration.
 #
 # AM_PROG_VALAC([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 # --------------------------------------------------------------------------