--- /dev/null
+#include <tools/ccanlint/ccanlint.h>
+#include <tools/tools.h>
+#include <ccan/talloc/talloc.h>
+#include <ccan/str/str.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+#include <string.h>
+#include <ctype.h>
+
+static const char *can_build(struct manifest *m)
+{
+ if (safe_mode)
+ return "Safe mode enabled";
+ return NULL;
+}
+
+static int cleanup_testfile(char *testfile)
+{
+ unlink(testfile);
+ return 0;
+}
+
+static char *objname(const void *ctx, const char *cfile)
+{
+ return talloc_asprintf(ctx, "%.*s.o ", strlen(cfile) - 2, cfile);
+}
+
+static char *compile(struct manifest *m, const char *cfile)
+{
+ char *obj;
+
+ obj = objname(m, cfile);
+ talloc_set_destructor(obj, cleanup_testfile);
+ return run_command(m, "cc " CFLAGS " -c -o %s %s", obj, cfile);
+}
+
+static void *do_compile_test_helpers(struct manifest *m)
+{
+ char *cmdout = NULL;
+ struct ccan_file *i;
+
+ list_for_each(&m->other_test_c_files, i, list) {
+ compile_tests.total_score++;
+ cmdout = compile(m, i->name);
+ if (cmdout)
+ return talloc_asprintf(m,
+ "Failed to compile helper C"
+ " code file %s:\n%s",
+ i->name, cmdout);
+ }
+ return NULL;
+}
+
+static const char *describe_compile_test_helpers(struct manifest *m,
+ void *check_result)
+{
+ return check_result;
+}
+
+struct ccanlint compile_test_helpers = {
+ .name = "Compiling test helper files",
+ .total_score = 1,
+ .check = do_compile_test_helpers,
+ .describe = describe_compile_test_helpers,
+ .can_run = can_build,
+};
+
+REGISTER_TEST(compile_test_helpers, &depends_built);