[vala/wip/meson: 80/85] meson: Compile everything with stricter cflags

[Rico Tzschichholz <ricotz src gnome org>]

commit 2a1e10b5069b3f64e082681b59453b2ffb660ebd
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Sep 7 17:57:31 2020 +0200

    meson: Compile everything with stricter cflags

 meson.build | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/meson.build b/meson.build
index d065482b1..f5eaa1784 100644
--- a/meson.build
+++ b/meson.build
@@ -122,6 +122,11 @@ test_cflags = [
 ]
 supported_test_cflags = cc.get_supported_arguments(test_cflags)
 
+# https://github.com/mesonbuild/meson/issues/3407
+if valac.version().version_compare('>= @0@'.format(vala_version))
+       add_project_arguments(supported_test_cflags, language: 'c')
+endif
+
 add_project_arguments([
                '-Wno-discarded-qualifiers',
                '-Wno-incompatible-pointer-types',