[geary/wip/misc-build-fixes: 1/2] Fix messaging menu dep so it actually gets found and built

[Michael Gratton <mjog src gnome org>]

commit cd9ea1328244446f83896ffe76bbd4d5c129756c
Author: Michael Gratton <mike vee net>
Date:   Fri Apr 19 13:19:07 2019 +1000

    Fix messaging menu dep so it actually gets found and built

 meson.build | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 23162d87..dc5dd38a 100644
--- a/meson.build
+++ b/meson.build
@@ -105,9 +105,24 @@ endif
 # Optional dependencies
 appstream_util = find_program('appstream-util', required: false)
 desktop_file_validate = find_program('desktop-file-validate', required: false)
-libmessagingmenu = dependency('libmessaging-menu', version: '>= 12.10', required: false)
+libmessagingmenu_dep = dependency('messaging-menu', version: '>= 12.10', required: false)
 libunity = dependency('unity', version: '>= 5.12.0', required: false)
 
+if libmessagingmenu_dep.found()
+  # The libmessagingmenu dependency above determines if the lib is
+  # present, but since it uses a broken name for its VAPI we have to
+  # find that and the C libs separately.
+  libmessagingmenu = declare_dependency(
+    include_directories: include_directories(
+      libmessagingmenu_dep.get_pkgconfig_variable('includedir')
+    ),
+    dependencies: [
+      valac.find_library('MessagingMenu-1.0', dirs: [ '/usr/share/vala/vapi' ]),
+      cc.find_library('messaging-menu')
+    ],
+  )
+endif
+
 # Ensure SQLite was built correctly
 if not cc.has_header_symbol('sqlite3.h', 'SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER', dependencies: sqlite)
   error('SQLite3 is missing FTS3 tokenizer support. Please compile it with -DSQLITE_ENABLE_FTS3.\n'