[gtk/glib-build-fix] meson: Try to limit the damage

[Matthias Clasen <matthiasc src gnome org>]

commit 15982ab6d255ac4e4634139fb75bf66c7dd8cc78
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 31 14:20:11 2020 -0400

    meson: Try to limit the damage
    
    Try to teach meson not to build our subprojects with
    -Werror, since that is just insane, and exposes us
    to random build failures in subprojects.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3b60fa5119..b9fad8ede1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ stages:
 
 # Common variables
 variables:
-  COMMON_MESON_FLAGS: "--fatal-meson-warnings --werror"
+  COMMON_MESON_FLAGS: "--fatal-meson-warnings -Dgtk:werror=true"
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true -Dvulkan=yes"
   FEATURE_FLAGS: "-Dcloudproviders=true"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3