char *run_command(const void *ctx, const char *fmt, ...);
char *temp_file(const void *ctx, const char *extension);
-/* From compile.c. */
-/* Compile multiple object files into a single. Returns errmsg if fails. */
-char *link_objects(const void *ctx, const char *outfile, const char *objs);
+/* From compile.c.
+ *
+ * These all compile into a temporary dir, and return the filename.
+ * On failure they return NULL, and errmsg is set to compiler output.
+ */
+/* Compile multiple object files into a single. */
+char *link_objects(const void *ctx, const char *objs, char **errmsg);
/* Compile a single C file to an object file. Returns errmsg if fails. */
-char *compile_object(const void *ctx, const char *outfile, const char *cfile);
-/* Compile and link single C file, with object files.
- * Returns name of result, or NULL (and fills in errmsg). */
+char *compile_object(const void *ctx, const char *cfile, char **errmsg);
+/* Compile and link single C file, with object files, libs, etc. */
char *compile_and_link(const void *ctx, const char *cfile, const char *objs,
const char *extra_cflags, const char *libs,
char **errmsg);