time_.h from the time module uses restrict in the prototypes, but it doesn't depend on the restrict module. Installed.
--- time 12 Feb 2007 19:49:19 +0100 1.1 +++ time 13 Feb 2007 17:39:37 +0100 @@ -8,6 +8,7 @@ Depends-on: absolute-header extensions +restrict configure.ac: gl_HEADER_TIME_H