[dia] Enforce supported lib versions

[Zander <zbrown src gnome org>]

commit 2dbbb055c4aa190148b23dacec976259a1ddcccc
Author: Zander Brown <zbrown gnome org>
Date:   Tue May 14 17:57:00 2019 +0100

    Enforce supported lib versions
    
    Except all those places where we override that...

 meson.build | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/meson.build b/meson.build
index 0353491d..601a812c 100644
--- a/meson.build
+++ b/meson.build
@@ -68,6 +68,15 @@ configuration_inc = include_directories('.')
 config_h_in = configure_file(output: 'config.h.in', configuration: conf)
 config_h = vcs_tag(input: config_h_in, output: 'config.h')
 
+gtk_ver = 'GDK_VERSION_2_24'
+glib_ver = 'GLIB_VERSION_2_50'
+add_project_arguments([
+  '-DGDK_VERSION_MIN_REQUIRED=@0@'.format(gtk_ver),
+  '-DGDK_VERSION_MAX_ALLOWED=@0@'.format(gtk_ver),
+  '-DGLIB_VERSION_MIN_REQUIRED=@0@'.format(glib_ver),
+  '-DGLIB_VERSION_MAX_ALLOWED=@0@'.format(glib_ver),
+], language: 'c')
+
 subdir('po')
 subdir('lib')
 subdir('objects')