Cave into to gcc49's paranoia...

lib/libvcc/vcc_compile.c

@@ -534,7 +534,7 @@ vcc_file_source(const struct vcp * const vcp, struct vsb *sb, const char *fn)
 	if (VFIL_searchpath(vcp->vcl_path, NULL, &f, fn, &fnp) || f == NULL) {
 		VSB_printf(sb, "Cannot read file '%s' (%s)\n",
 		    fnp != NULL ? fnp : fn, strerror(errno));
-		REPLACE(fnp, NULL);
+		free(fnp);
 		return (NULL);
 	}
 	sp = vcc_new_source(f, NULL, fnp);

lib/libvcc/vcc_vmod.c

@@ -136,12 +136,13 @@ vcc_ParseImport(struct vcc *tl)
 		    fnpx != NULL ? fnpx : fn);
 		VSB_printf(tl->sb, "\tdlerror: %s\n", dlerror());
 		vcc_ErrWhere(tl, mod);
-		REPLACE(fnpx, NULL);
+		free(fnpx);
 		return;
 	}
 
+	AN(fnpx);
 	fnp = TlDup(tl, fnpx);
-	REPLACE(fnpx, NULL);
+	free(fnpx);
 
 	bprintf(buf, "Vmod_%.*s_Data", PF(mod));
 	vmd = dlsym(hdl, buf);