[gnome-common] gnome-autogen: warn if $srcdir is undefined

[Marc-Andre Lureau <malureau src gnome org>]

commit 8dd714645952ccaf99ab714e4af2c47718382b9e
Author: Marc-André Lureau <marcandre lureau gmail com>
Date:   Tue Dec 23 03:47:47 2014 +0100

    gnome-autogen: warn if $srcdir is undefined
    
    Not setting $srcdir will lead to broken out-of-tree autogen call, so
    let's ask to set it
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741891

 macros2/gnome-autogen.sh |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/macros2/gnome-autogen.sh b/macros2/gnome-autogen.sh
old mode 100644
new mode 100755
index dace336..e4b7791
--- a/macros2/gnome-autogen.sh
+++ b/macros2/gnome-autogen.sh
@@ -1,8 +1,6 @@
 #!/bin/sh
 # Run this to generate all the initial makefiles, etc.
 
-test "$srcdir" || srcdir=.
-
 # default version requirements ...
 test "$REQUIRED_AUTOMAKE_VERSION" || REQUIRED_AUTOMAKE_VERSION=1.11.2
 test "$REQUIRED_AUTORECONF_VERSION" || REQUIRED_AUTORECONF_VERSION=2.53
@@ -62,6 +60,11 @@ check_deprecated GNOME2_PATH
 check_deprecated USE_GNOME2_MACROS
 check_deprecated PKG_NAME
 
+if [ -z "$srcdir" ]; then
+    printerr "***Warning*** \$srcdir is not defined, out of dir autogen is broken!"
+    srcdir=.
+fi
+
 PKG_NAME=`autoconf --trace "AC_INIT:$1" "$srcdir/configure.ac"`
 
 # Usage: