+#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 char *obj_list(const struct manifest *m, bool link_with_module)
+{
+ char *list;
+ struct ccan_file *i;
+
+ /* We expect to be linked with tap, unless that's us. */
+ if (!streq(m->basename, "tap"))
+ list = talloc_strdup(m, "../tap.o");
+ else
+ list = talloc_strdup(m, "");
+
+ /* Objects from any other C files. */
+ list_for_each(&m->other_test_c_files, i, list)
+ list = talloc_asprintf_append(list, " %s", i->compiled);
+
+ if (link_with_module)
+ list = talloc_asprintf_append(list, " ../%s.o", m->basename);
+
+ /* Other ccan modules. */
+ list_for_each(&m->dep_objs, i, list)
+ list = talloc_asprintf_append(list, " %s", i->name);
+
+ return list;
+}
+
+static char *lib_list(const struct manifest *m)
+{
+ unsigned int i, num;
+ char **libs = get_libs(m, ".", ".", &num, &m->info_file->compiled);
+ char *ret = talloc_strdup(m, "");
+
+ for (i = 0; i < num; i++)
+ ret = talloc_asprintf_append(ret, "-l%s ", libs[i]);
+ return ret;
+}
+
+static char *compile(const void *ctx,
+ struct manifest *m, struct ccan_file *file, bool fail,
+ bool link_with_module)
+{
+ char *errmsg;
+
+ file->compiled = compile_and_link(ctx, file->name,
+ obj_list(m, link_with_module),
+ fail ? "-DFAIL" : "",
+ lib_list(m), &errmsg);
+ if (!file->compiled)
+ return errmsg;
+ talloc_steal(ctx, file->compiled);
+ return NULL;
+}
+
+struct compile_tests_result {
+ struct list_node list;
+ const char *filename;
+ const char *description;
+ const char *output;
+};
+
+static void *do_compile_tests(struct manifest *m)
+{
+ struct list_head *list = talloc(m, struct list_head);
+ char *cmdout;
+ struct ccan_file *i;
+ struct compile_tests_result *res;
+
+ list_head_init(list);
+
+ list_for_each(&m->compile_ok_tests, i, list) {
+ compile_tests.total_score++;
+ cmdout = compile(list, m, i, false, false);
+ if (cmdout) {
+ res = talloc(list, struct compile_tests_result);
+ res->filename = i->name;
+ res->description = "failed to compile";
+ res->output = talloc_steal(res, cmdout);
+ list_add_tail(list, &res->list);
+ }
+ }
+
+ list_for_each(&m->run_tests, i, list) {
+ compile_tests.total_score++;
+ cmdout = compile(m, m, i, false, false);
+ if (cmdout) {
+ res = talloc(list, struct compile_tests_result);
+ res->filename = i->name;
+ res->description = "failed to compile";
+ res->output = talloc_steal(res, cmdout);
+ list_add_tail(list, &res->list);
+ }
+ }
+
+ list_for_each(&m->api_tests, i, list) {
+ compile_tests.total_score++;
+ cmdout = compile(m, m, i, false, true);
+ if (cmdout) {
+ res = talloc(list, struct compile_tests_result);
+ res->filename = i->name;
+ res->description = "failed to compile";
+ res->output = talloc_steal(res, cmdout);
+ list_add_tail(list, &res->list);
+ }
+ }
+
+ list_for_each(&m->compile_fail_tests, i, list) {
+ compile_tests.total_score++;
+ cmdout = compile(list, m, i, false, false);
+ if (cmdout) {
+ res = talloc(list, struct compile_tests_result);
+ res->filename = i->name;
+ res->description = "failed to compile without -DFAIL";
+ res->output = talloc_steal(res, cmdout);
+ list_add_tail(list, &res->list);
+ } else {
+ cmdout = compile(list, m, i, true, false);
+ if (!cmdout) {
+ res = talloc(list, struct compile_tests_result);
+ res->filename = i->name;
+ res->description = "compiled successfully"
+ " with -DFAIL";
+ res->output = "";
+ list_add_tail(list, &res->list);
+ }
+ }
+ }
+
+ if (list_empty(list)) {
+ talloc_free(list);
+ list = NULL;
+ }
+
+ return list;
+}
+
+static unsigned int score_compile_tests(struct manifest *m,
+ void *check_result)
+{
+ struct list_head *list = check_result;
+ struct compile_tests_result *i;
+ unsigned int score = compile_tests.total_score;
+
+ list_for_each(list, i, list)
+ score--;
+ return score;
+}
+
+static const char *describe_compile_tests(struct manifest *m,
+ void *check_result)
+{
+ struct list_head *list = check_result;
+ struct compile_tests_result *i;
+ char *descrip = talloc_strdup(list, "Compilation tests failed:\n");
+
+ list_for_each(list, i, list)
+ descrip = talloc_asprintf_append(descrip, "%s %s\n%s",
+ i->filename, i->description,
+ i->output);
+ return descrip;
+}
+
+struct ccanlint compile_tests = {
+ .name = "Compile tests succeed",
+ .score = score_compile_tests,
+ .check = do_compile_tests,
+ .describe = describe_compile_tests,
+ .can_run = can_build,
+};
+
+REGISTER_TEST(compile_tests, &compile_test_helpers, NULL);