--- /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 bool add_dep(struct manifest *m, const char *dep, struct score *score)
+{
+ struct stat st;
+ struct manifest *subm;
+ char *dir = talloc_asprintf(m, "%s/%s", ccan_dir, dep);
+
+ /* FIXME: get_manifest has a tendency to exit. */
+ if (stat(dir, &st) != 0) {
+ score->error
+ = talloc_asprintf(m,
+ "Could not stat dependency %s: %s",
+ dir, strerror(errno));
+ return false;
+ }
+ subm = get_manifest(m, dir);
+ list_add_tail(&m->deps, &subm->list);
+ return true;
+}
+
+/* FIXME: check this is still true once we reduce features. */
+static void check_depends_exist(struct manifest *m,
+ bool keep,
+ unsigned int *timeleft, struct score *score)
+{
+ unsigned int i;
+ char **deps;
+ char *updir = talloc_strdup(m, m->dir);
+ bool needs_tap;
+
+ if (strrchr(updir, '/'))
+ *strrchr(updir, '/') = '\0';
+
+ /* We may need libtap for testing, unless we're "tap" */
+ if (streq(m->basename, "tap")) {
+ needs_tap = false;
+ } else if (list_empty(&m->run_tests) && list_empty(&m->api_tests)) {
+ needs_tap = false;
+ } else {
+ needs_tap = true;
+ }
+
+ if (safe_mode)
+ deps = get_safe_ccan_deps(m, m->dir, true);
+ else
+ deps = get_deps(m, m->dir, true,
+ &m->info_file->compiled[COMPILE_NORMAL]);
+
+ for (i = 0; deps[i]; i++) {
+ if (!strstarts(deps[i], "ccan/"))
+ continue;
+
+ if (!add_dep(m, deps[i], score))
+ return;
+
+ if (streq(deps[i], "ccan/tap")) {
+ needs_tap = false;
+ }
+ }
+
+ if (needs_tap && !add_dep(m, "ccan/tap", score)) {
+ return;
+ }
+
+ score->pass = true;
+ score->score = score->total;
+}
+
+struct ccanlint depends_exist = {
+ .key = "depends_exist",
+ .name = "Module's CCAN dependencies can be found",
+ .compulsory = true,
+ .check = check_depends_exist,
+ .needs = "info_exists"
+};
+
+REGISTER_TEST(depends_exist);