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Test -lrt for sched_yield

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Apparently, this is needed in some Solaris versions.

Author: Oskari Saarenmaa
This commit is contained in:
Alvaro Herrera 2015-06-30 14:20:38 -03:00
parent 131926a52d
commit ab93f90cd3
2 changed files with 59 additions and 0 deletions
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57
configure vendored
View File

@ -8227,6 +8227,63 @@ if test "$ac_res" != no; then :
fi
# Required for thread_test.c on Solaris
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sched_yield" >&5
$as_echo_n "checking for library containing sched_yield... " >&6; }
if ${ac_cv_search_sched_yield+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char sched_yield ();
int
main ()
{
return sched_yield ();
;
return 0;
}
_ACEOF
for ac_lib in '' rt; do
if test -z "$ac_lib"; then
ac_res="none required"
else
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
if ac_fn_c_try_link "$LINENO"; then :
ac_cv_search_sched_yield=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext
if ${ac_cv_search_sched_yield+:} false; then :
break
fi
done
if ${ac_cv_search_sched_yield+:} false; then :
else
ac_cv_search_sched_yield=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sched_yield" >&5
$as_echo "$ac_cv_search_sched_yield" >&6; }
ac_res=$ac_cv_search_sched_yield
if test "$ac_res" != no; then :
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
fi
# Required for thread_test.c on Solaris 2.5:
# Other ports use it too (HP-UX) so test unconditionally
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname_r" >&5

2
configure.in
View File

@ -974,6 +974,8 @@ AC_SEARCH_LIBS(shm_open, rt)
AC_SEARCH_LIBS(shm_unlink, rt)
# Solaris:
AC_SEARCH_LIBS(fdatasync, [rt posix4])
# Required for thread_test.c on Solaris
AC_SEARCH_LIBS(sched_yield, rt)
# Required for thread_test.c on Solaris 2.5:
# Other ports use it too (HP-UX) so test unconditionally
AC_SEARCH_LIBS(gethostbyname_r, nsl)