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common: New function gnupg_usleep.

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* configure.ac (HAVE_NANOSLEEP): Test for nanosleep.
* common/sysutils.c: Always include time.h.
(gnupg_usleep): New.
--

This function has been compiled from nPth and Libassuan.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-10-31 12:20:33 +01:00
parent 3b6b8fe32a
commit ad491ceec6
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3 changed files with 56 additions and 1 deletions
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10
configure.ac
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@ -1387,6 +1387,16 @@ AC_CHECK_FUNCS([memicmp stpcpy strsep strlwr strtoul memmove stricmp strtol \
flockfile funlockfile getpwnam getpwuid \
getenv inet_pton strpbrk])
# On some systems (e.g. Solaris) nanosleep requires linking to librl.
# Given that we use nanosleep only as an optimization over a select
# based wait function we want it only if it is available in libc.
_save_libs="$LIBS"
AC_SEARCH_LIBS([nanosleep], [],
[AC_DEFINE(HAVE_NANOSLEEP,1,
[Define to 1 if you have the `nanosleep' function in libc.])])
LIBS="$_save_libs"
# See whether libc supports the Linux inotify interface
case "${host}" in
*-*-linux*)