[gtk+/wip/meson: 141/181] meson: gtk: set GTK_PRINT_BACKENDS define properly

[Emmanuele Bassi <ebassi src gnome org>]

commit d39e8f597aa790969ad382e98d9016c85ddded63
Author: Tim-Philipp Müller <tim centricular com>
Date:   Wed Mar 22 18:15:17 2017 +0000

    meson: gtk: set GTK_PRINT_BACKENDS define properly

 config.h.meson                    |    2 ++
 gtk/meson.build                   |    1 -
 modules/printbackends/meson.build |    2 ++
 3 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/config.h.meson b/config.h.meson
index 0e8b63f..65d7e09 100644
--- a/config.h.meson
+++ b/config.h.meson
@@ -315,3 +315,5 @@
 #mesondefine GTK_DATADIR
 
 #mesondefine GTK_LIBDIR
+
+#mesondefine GTK_PRINT_BACKENDS
diff --git a/gtk/meson.build b/gtk/meson.build
index 85fe62a..55c921a 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -768,7 +768,6 @@ gtk_cargs = [
   '-DGTK_SYSCONFDIR="' + get_option('prefix') + '/etc"',
   '-DGTK_DATADIR="' + get_option('datadir') + '"',
   '-DGTK_DATA_PREFIX="'+ get_option('prefix') + '"',
-  '-DGTK_PRINT_BACKENDS="null"', # FIXME
 ]
 
 gtk_sources += [
diff --git a/modules/printbackends/meson.build b/modules/printbackends/meson.build
index 80c9469..c9f9706 100644
--- a/modules/printbackends/meson.build
+++ b/modules/printbackends/meson.build
@@ -111,6 +111,8 @@ printbackends_install_dir = join_paths(get_option('libdir'), printbackends_subdi
 
 message('Print backends: ' + ' '.join(print_backends))
 
+cdata.set_quoted('GTK_PRINT_BACKENDS', ','.join(print_backends))
+
 foreach print_backend : print_backends
   subdir(print_backend)
 endforeach