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redoconf: posix.rc: fix abort when timespec is not available.

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Now we define HAS_POSIX=1 if it works, and to blank otherwise, to be
consistent with other rc scripts, but it doesn't abort if we can't find
timespec.

Meanwhile, slightly clarify the error message in rc.sh.

Reported-by: Nathaniel Filardo <nwfilardo@gmail.com>
This commit is contained in:
Avery Pennarun 2019-02-23 21:00:26 -05:00
commit 017997c035
3 changed files with 10 additions and 4 deletions
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10
docs/cookbook/c/rc/posix.rc.od
View file

@ -8,9 +8,13 @@ struct timespec x;
'
x=
rc_replaceln HAS_POSIX 1
if ! rc_compile cc link "$prog"; then
x="-D_XOPEN_SOURCE=500"
rc_appendln CPPFLAGS "$x"
rc_compile cc link "$prog"
x="-D_XOPEN_SOURCE=500"
rc_appendln CPPFLAGS "$x"
if ! rc_compile cc link "$prog"; then
rc_undo
rc_replaceln HAS_POSIX ""
fi
fi
rc_save