[pango/wip/meson] fixup! meson: Add a few missing things, minor fixes, TODO

[Emmanuele Bassi <ebassi src gnome org>]

commit d47d65f2ff875cde8eea81100665f5a7c185b689
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri May 19 14:53:58 2017 +0100

    fixup! meson: Add a few missing things, minor fixes, TODO

 meson.build |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/meson.build b/meson.build
index 5bc29f5..c0f943e 100644
--- a/meson.build
+++ b/meson.build
@@ -70,6 +70,7 @@ if cc.get_id() == 'msvc'
     '-we4071', # no function prototype given
     '-we4819', # the file contains a character that cannot be represented in the current code page
   ]
+  test_c_only_flags = []
 elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
   test_c_only_flags = [
     '-Wimplicit-function-declaration',