c-list: enable unit tests for third_party/c-list

Makefile.am

@@ -1184,6 +1184,13 @@ endif
 
 ###############################################################################
 
+check-local-c-list:
+	./tools/check-c-list.sh
+
+check_local += check-local-c-list
+
+###############################################################################
+
 check-local: $(check_build) $(check_local)
 
 .PHONY: $(check_local)

tools/check-c-list.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/bash
+
+set -e
+
+print_and_exit() {
+	local err="$1"
+	shift
+	printf '%s\n' "$*"
+	exit "$err"
+}
+
+die() {
+	print_and_exit 1 "$@"
+}
+
+command -v meson &>/dev/null || print_and_exit 0 "skip: meson not available"
+command -v ninja &>/dev/null || print_and_exit 0 "skip: ninja not available"
+
+cd ./third_party/c-list/
+
+if [ ! -d "./build/" ] ; then
+	meson ./build/ || die "meson failed"
+	ninja -C ./build/ || die "failed build"
+fi
+
+ninja -C ./build/ test || die "c-list tests failed"