[glibmm] gmmproc: Discard unused m4 sections

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 02f7016cc4cc96e2f85654a4fe80bd80c63b275e
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Wed May 25 12:46:49 2016 +0200

    gmmproc: Discard unused m4 sections
    
    tools/m4/base.m4: At the end of the _END macro, discard all remaining sections.
    m4_divert(-1) + m4_undivert() was probably meant to do just that, but it does
    nothing. m4_divert(-1) + m4_undivert, without parentheses, discards all
    remaining sections. Bug #756593

 tools/m4/base.m4 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tools/m4/base.m4 b/tools/m4/base.m4
index 24deb01..bd7d0e1 100644
--- a/tools/m4/base.m4
+++ b/tools/m4/base.m4
@@ -355,7 +355,7 @@ _IMPORT(SECTION_SRC_GENERATED)
 _DEPRECATE_IFDEF_CLASS_END
 
 m4_divert(-1)
-m4_undivert()
+m4_undivert
 ')
 
 define(`_NAMESPACE',`dnl