[template-glib] build: Fix macOS versioning

[Christian Hergert <chergert src gnome org>]

commit 527b17d5444e7304241f8669c8978ed8947e3fd8
Author: Tom Schoonjans <Tom Schoonjans diamond ac uk>
Date:   Wed Mar 13 16:11:33 2019 +0000

    build: Fix macOS versioning

 meson.build     | 2 ++
 src/meson.build | 9 +++++----
 2 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index 2c5ac1c..dd8bd8d 100644
--- a/meson.build
+++ b/meson.build
@@ -26,6 +26,8 @@ current = template_glib_version_minor * 100 + template_glib_version_micro - temp
 revision = template_glib_interface_age
 libversion = '@0@.@1@.@2@'.format(soversion, current, revision)
 
+darwin_versions = [current + 1, '@0@.@1@'.format(current + 1, revision)]
+
 config_h = configuration_data()
 config_h.set_quoted('GETTEXT_PACKAGE', 'libtemplate_glib')
 config_h.set_quoted('LOCALEDIR', join_paths(get_option('prefix'), get_option('localedir')))
diff --git a/src/meson.build b/src/meson.build
index 5adef72..b3eb57a 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -145,10 +145,11 @@ libtemplate_glib = library(
   'template_glib-' + apiversion,
   libtemplate_glib_sources,
 
-  dependencies: libtemplate_glib_deps,
-     soversion: soversion,
-       version: libversion,
-       install: true,
+   dependencies: libtemplate_glib_deps,
+      soversion: soversion,
+        version: libversion,
+darwin_versions: darwin_versions,
+        install: true,
 )
 
 libtemplate_glib_dep = declare_dependency(