--- /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_run(struct manifest *m)
+{
+ if (safe_mode)
+ return "Safe mode enabled";
+ return NULL;
+}
+
+static bool compile(struct manifest *m,
+ bool keep,
+ struct ccan_file *cfile,
+ char **output)
+{
+ cfile->compiled = maybe_temp_file(m, ".o", keep, cfile->fullname);
+ return compile_object(m, cfile->fullname, ccan_dir, "",
+ cfile->compiled, output);
+}
+
+static void do_compile_test_helpers(struct manifest *m,
+ bool keep,
+ unsigned int *timeleft,
+ struct score *score)
+{
+ struct ccan_file *i;
+ bool errors = false, warnings = false;
+
+ if (list_empty(&m->other_test_c_files))
+ score->total = 0;
+ else
+ score->total = 2;
+
+ list_for_each(&m->other_test_c_files, i, list) {
+ char *cmdout;
+
+ if (!compile(m, keep, i, &cmdout)) {
+ errors = true;
+ score->error = "Failed to compile helper C files";
+ score_file_error(score, i, 0, cmdout);
+ } else if (!streq(cmdout, "")) {
+ warnings = true;
+ score->error = "Helper C files gave warnings";
+ score_file_error(score, i, 0, cmdout);
+ }
+ }
+
+ if (!errors) {
+ score->pass = true;
+ score->score = score->total - warnings;
+ }
+}
+
+struct ccanlint tests_helpers_compile = {
+ .key = "tests_helpers_compile",
+ .name = "Module test helper objects compile",
+ .check = do_compile_test_helpers,
+ .can_run = can_run,
+ .needs = "depends_build tests_exist"
+};
+
+REGISTER_TEST(tests_helpers_compile);