[folks] build: use AM_MAINTAINER_MODE([enable]) instead of AM_MAINTAINER_MODE

[Raul Gutierrez Segales <raulgs src gnome org>]

commit ac3994d108066822354916df0390b330d2d25b58
Author: Raul Gutierrez Segales <rgs collabora co uk>
Date:   Tue Sep 13 10:26:37 2011 +0100

    build: use AM_MAINTAINER_MODE([enable]) instead of AM_MAINTAINER_MODE
    
    Fixes: https://bugzilla.gnome.org/show_bug.cgi?id=658894

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 23eb97c..cb8d12e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -44,7 +44,7 @@ AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_SRCDIR([configure.ac])
 AM_INIT_AUTOMAKE([1.11 dist-bzip2 no-define
                   no-dist-gzip tar-ustar -Wno-portability])
-AM_MAINTAINER_MODE
+AM_MAINTAINER_MODE([enable])
 
 AC_PROG_CC
 AM_PROG_CC_C_O