+#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 void *check_objs_build(struct manifest *m)
+{
+ char *report = NULL;
+ struct ccan_file *i;
+
+ list_for_each(&m->c_files, i, list) {
+ char *err;
+
+ /* One point for each obj file. */
+ build_objs.total_score++;
+
+ i->compiled = compile_object(m, i->name, &err);
+ if (!i->compiled) {
+ if (report)
+ report = talloc_append_string(report, err);
+ else
+ report = err;
+ }
+ }
+ return report;
+}
+
+static const char *describe_objs_build(struct manifest *m, void *check_result)
+{
+ return check_result;
+}
+
+struct ccanlint build_objs = {
+ .name = "Module object files can be built",
+ .check = check_objs_build,
+ .describe = describe_objs_build,
+ .can_run = can_build,
+};
+
+REGISTER_TEST(build_objs, &depends_exist, NULL);