Always include <unistd.h> so we get the vfork prototype.
Noticed by <wada@faraday.ee.ibaraki.ac.jp>.
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gnu/dist/libio/iopopen.c
vendored
4
gnu/dist/libio/iopopen.c
vendored
@ -34,9 +34,7 @@
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#ifdef __STDC__
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#include <stdlib.h>
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#endif
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#ifdef _LIBC
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# include <unistd.h>
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#endif
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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