25 lines
743 B
Diff
25 lines
743 B
Diff
diff -Nrup a/main.c b/main.c
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--- a/main.c 2013-10-09 00:22:40.000000000 -0400
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+++ b/main.c 2014-02-03 17:18:04.238609236 -0500
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@@ -1987,6 +1987,20 @@ main (int argc, char **argv, char **envp
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}
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#endif
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+#ifdef PIPE_BUF
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+ if (job_slots > PIPE_BUF)
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+#elif defined _POSIX_PIPE_BUF
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+ if (job_slots > _POSIX_PIPE_BUF)
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+#else
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+ if (job_slots > 512)
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+#endif
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+ {
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+ O (error, NILF,
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+ _("More parallel jobs (-jN) than this platform can handle requested."));
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+ O (error, NILF, _("Resetting to single job (-j1) mode."));
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+ job_slots = 1;
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+ }
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+
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#ifdef MAKE_JOBSERVER
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/* If we have >1 slot but no jobserver-fds, then we're a top-level make.
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Set up the pipe and install the fds option for our children. */
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