[master] ATF usage and documentation cleaned up

    Merges in rt38619

1 files changed, 37 insertions, 0 deletions

diff --git a/aclocal.m4 b/aclocal.m4
index b85f6aed..21182a7b 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -109,6 +109,43 @@ AC_PREREQ([2.50])dnl
 am_aux_dir=`cd $ac_aux_dir && pwd`
 ])
 
+# AM_COND_IF                                            -*- Autoconf -*-
+
+# 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.
+
+# _AM_COND_IF
+# _AM_COND_ELSE
+# _AM_COND_ENDIF
+# --------------
+# These macros are only used for tracing.
+m4_define([_AM_COND_IF])
+m4_define([_AM_COND_ELSE])
+m4_define([_AM_COND_ENDIF])
+
+# AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
+# ---------------------------------------
+# If the shell condition COND is true, execute IF-TRUE, otherwise execute
+# IF-FALSE.  Allow automake to learn about conditional instantiating macros
+# (the AC_CONFIG_FOOS).
+AC_DEFUN([AM_COND_IF],
+[m4_ifndef([_AM_COND_VALUE_$1],
+	   [m4_fatal([$0: no such condition "$1"])])dnl
+_AM_COND_IF([$1])dnl
+if test -z "$$1_TRUE"; then :
+  m4_n([$2])[]dnl
+m4_ifval([$3],
+[_AM_COND_ELSE([$1])dnl
+else
+  $3
+])dnl
+_AM_COND_ENDIF([$1])dnl
+fi[]dnl
+])
+
 # AM_CONDITIONAL                                            -*- Autoconf -*-
 
 # Copyright (C) 1997-2013 Free Software Foundation, Inc.