test-msys2.sh: Copy built DLLs into each directory with tests

This works around a Meson bug where a system-wide installed copy of
GLib can incorrectly get used in preference to the just-built copy
(see https://github.com/mesonbuild/meson/issues/12330).

In principle some of these are unnecessary (for example libgio-2.0-0.dll
only needs to be in gio/tests/ and girepository/tests/) but it's simpler
to copy each DLL to each tests directory.

Fixes: c428d6e6 "ci: Build and tar the platform specific documentation"
Resolves: https://gitlab.gnome.org/GNOME/glib/-/issues/3262
Signed-off-by: Simon McVittie <smcv@collabora.com>

.gitlab-ci/test-msys2.sh

@@ -55,6 +55,23 @@ if [[ "$CFLAGS" == *"-coverage"* ]]; then
         --output-file "${DIR}/_coverage/${CI_JOB_NAME}-baseline.lcov"
 fi
 
+# FIXME: Workaround for https://github.com/mesonbuild/meson/issues/12330
+for tests in \
+    gio/tests \
+    girepository/tests \
+    glib/tests \
+    gmodule/tests \
+    gobject/tests \
+    gthread/tests \
+; do
+    cp _build/glib/libglib-2.0-0.dll "_build/$tests/"
+    cp _build/gmodule/libgmodule-2.0-0.dll "_build/$tests/"
+    cp _build/gobject/libgobject-2.0-0.dll "_build/$tests/"
+    cp _build/gthread/libgthread-2.0-0.dll "_build/$tests/"
+    cp _build/gio/libgio-2.0-0.dll "_build/$tests/"
+    cp _build/girepository/libgirepository-2.0-0.dll "_build/$tests/"
+done
+
 meson test -C _build -v --timeout-multiplier "${MESON_TEST_TIMEOUT_MULTIPLIER}"
 meson test -C _build -v --timeout-multiplier "${MESON_TEST_TIMEOUT_MULTIPLIER}" \
     --setup=unstable_tests --suite=failing --suite=flaky || true