[shotwell] Only use version.h where we use the git macro

[Jens Georg <jensgeorg src gnome org>]

commit 029453bbbd4f5104ae4c397d7791f83a109bc36a
Author: Jens Georg <mail jensge org>
Date:   Mon Oct 8 20:56:01 2018 +0200

    Only use version.h where we use the git macro

 meson.build        | 2 +-
 src/Resources.vala | 1 -
 src/meson.build    | 1 +
 vapi/version.vapi  | 3 +++
 4 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index 13446b52..db99fd62 100644
--- a/meson.build
+++ b/meson.build
@@ -21,7 +21,7 @@ shotwell_plugin_dir = join_paths(get_option('libdir'), 'shotwell', 'plugins', 'b
 
 add_global_arguments(['-DHAVE_CONFIG_H=1'],
                      ['-include'], ['config.h'],
-                     ['-include'], ['version.h'], language : 'c')
+                     language : 'c')
 add_global_arguments(['--target-glib=2.40',
                       '--vapidir=@0@'.format(join_paths(meson.current_source_dir(),
                         'vapi')),
diff --git a/src/Resources.vala b/src/Resources.vala
index 821819ff..62b9a9d8 100644
--- a/src/Resources.vala
+++ b/src/Resources.vala
@@ -10,7 +10,6 @@ extern const string _VERSION;
 extern const string GETTEXT_PACKAGE;
 extern const string _LIB;
 extern const string _LIBEXECDIR;
-extern const string? _GIT_VERSION;
 
 namespace Resources {
     public const string APP_TITLE = "Shotwell";
diff --git a/src/meson.build b/src/meson.build
index 45ac436b..20308e49 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -246,6 +246,7 @@ executable('shotwell',
                         '--pkg', 'libraw',
                         '--pkg', 'libexif',
                         '--pkg', 'misc',
+                        '--pkg', 'version',
                         '--gresources',
                         join_paths(meson.source_root(), 'data',
                           'org.gnome.Shotwell.gresource.xml')
diff --git a/vapi/version.vapi b/vapi/version.vapi
new file mode 100644
index 00000000..06974c84
--- /dev/null
+++ b/vapi/version.vapi
@@ -0,0 +1,3 @@
+[CCode (cheader_filename="version.h")]
+extern const string? _GIT_VERSION;
+