[gtk/ci-install-build: 2/2] ci: Test building against installed GTK

[Matthias Clasen <matthiasc src gnome org>]

commit a4c4efb0154b6881999ce7882d1b414d27e22302
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jun 8 17:39:34 2021 -0400

    ci: Test building against installed GTK
    
    This is meant to ensure that we e.g. install the
    right header files, and so on.

 .gitlab-ci.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f195a3374f..cd12451f92 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -79,12 +79,17 @@ fedora-x86_64:
   script:
     - .gitlab-ci/show-info-linux.sh
     - meson subprojects update
-    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
+    - mkdir _install
+    - meson --prefix=${CI_PROJECT_DIR}/_install
+            ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
             _build
     - ninja -C _build
     - .gitlab-ci/run-tests.sh _build x11
     - .gitlab-ci/run-tests.sh _build wayland
     - .gitlab-ci/run-tests.sh _build broadway
+    - ninja -C _build install
+    - PKG_CONFIG_PATH=${CI_PROJECT_DIR}/_install/lib64/pkgconfig:$PKG_CONFIG_PATH meson setup _build_hello 
examples/hello
+    - ninja -C _build_hello
 
 release-build:
   extends: .build-fedora-default