sync code with last improvements from OpenBSD

lib/mesa/.gitlab-ci/container/build-piglit.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# shellcheck disable=SC2086 # we want word splitting
+
+set -ex
+
+git clone https://gitlab.freedesktop.org/mesa/piglit.git --single-branch --no-checkout /piglit
+pushd /piglit
+git checkout 591c91865012de4224bea551eac5d2274acf06ad
+
+# TODO: Remove the following patch when piglit commit got past
+# 1cd716180cfb6ef0c1fc54702460ef49e5115791
+git apply $OLDPWD/.gitlab-ci/piglit/build-piglit_backport-s3-migration.diff
+
+patch -p1 <$OLDPWD/.gitlab-ci/piglit/disable-vs_in.diff
+cmake -S . -B . -G Ninja -DCMAKE_BUILD_TYPE=Release $PIGLIT_OPTS $EXTRA_CMAKE_ARGS
+ninja $PIGLIT_BUILD_TARGETS
+# shellcheck disable=SC2038,SC2185 # TODO: rewrite find
+find -name .git -o -name '*ninja*' -o -iname '*cmake*' -o -name '*.[chao]' | xargs rm -rf
+rm -rf target_api
+if [ "$PIGLIT_BUILD_TARGETS" = "piglit_replayer" ]; then
+    # shellcheck disable=SC2038,SC2185 # TODO: rewrite find
+    find ! -regex "^\.$" \
+         ! -regex "^\.\/piglit.*" \
+         ! -regex "^\.\/framework.*" \
+         ! -regex "^\.\/bin$" \
+         ! -regex "^\.\/bin\/replayer\.py" \
+         ! -regex "^\.\/templates.*" \
+         ! -regex "^\.\/tests$" \
+         ! -regex "^\.\/tests\/replay\.py" 2>/dev/null | xargs rm -rf
+fi
+popd