[libgdamm] Link to the glibmm-2.52 version of glibmm_generate_extra_defs.

[Murray Cumming <murrayc src gnome org>]

commit 728302e4ba0d8f9e55b965c1776484c924746d8b
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Nov 15 21:21:36 2016 +0100

    Link to the glibmm-2.52 version of glibmm_generate_extra_defs.

 tools/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tools/Makefile.am b/tools/Makefile.am
index 43bc610..d6af7d7 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -23,7 +23,7 @@ dist_noinst_DATA = $(addprefix m4/,$(files_codegen_m4))
 noinst_PROGRAMS  = extra_defs_gen/generate_extra_defs
 
 extra_defs_gen_generate_extra_defs_SOURCES = extra_defs_gen/generate_defs_gda.cc
-extra_defs_gen_generate_extra_defs_LDADD   = $(LIBGDAMM_LIBS) -lglibmm_generate_extra_defs-2.4
+extra_defs_gen_generate_extra_defs_LDADD   = $(LIBGDAMM_LIBS) -lglibmm_generate_extra_defs-2.52
 extra_defs_gen_generate_extra_defs_LDFLAGS = -no-undefined -avoid-version
 
 AM_CPPFLAGS = -I$(top_builddir) $(LIBGDAMM_CFLAGS)