3.79
* Handle case of empty static pattern rule prerequisites. * Fix linenumbers in error messages for rule definitions.
* Some final cleanups, and release 3.79.
* Added the test suite to the main distribution.
* Ignore attempt to change a file into itself. * Define COFLAGS to avoid unknown variable warning. * Fix some usec problems on UnixWare. * Don't remove .INTERMEDIATE targets specified on the command line.
* Fix PR/1394. * Apply changes from Paul Eggert. * Many other cleanups (index/rindex --> strchr/strrchr, etc.)