+2008-10-02 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ Implement parallel Autotest test execution: testsuite --jobs.
+ * lib/autotest/general.m4 (AT_JOB_FIFO_FD): New macro.
+ (AT_INIT): <at_jobs>: New variable.
+ Accept -j, -jN, --jobs[=N], document them in --help output.
+ Implement parallel driver loop using a FIFO, enabled with --jobs
+ and if mkfifo works; otherwise, fall back to sequential loop.
+ (AT_SETUP): Store, do not output summary progress line if
+ parallel.
+ * tests/autotest.at (parallel test execution, parallel truth)
+ (parallel fallacy, parallel skip): New tests.
+ * doc/autoconf.texi (testsuite Invocation): Document -j, --jobs,
+ the mkfifo requirement, and that --errexit may cause concurrent
+ jobs to finish.
+ * NEWS: Update.
+
2008-09-20 Eric Blake <ebb9@byu.net>
Fix sample isinf definition.