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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 5a56c25458
commit c085e072ff
2 changed files with 90 additions and 0 deletions
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88
configure vendored
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@ -8512,6 +8512,94 @@ if test "$ac_res" != no; then
fi
# Required for thread_test.c on Solaris
{ $as_echo "$as_me:$LINENO: checking for library containing sched_yield" >&5
$as_echo_n "checking for library containing sched_yield... " >&6; }
if test "${ac_cv_search_sched_yield+set}" = set; then
$as_echo_n "(cached) " >&6
else
ac_func_search_save_LIBS=$LIBS
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char sched_yield ();
int
main ()
{
return sched_yield ();
;
return 0;
}
_ACEOF
for ac_lib in '' rt; do
if test -z "$ac_lib"; then
ac_res="none required"
else
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
$as_echo "$ac_try_echo") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && {
test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
} && test -s conftest$ac_exeext && {
test "$cross_compiling" = yes ||
$as_test_x conftest$ac_exeext
}; then
ac_cv_search_sched_yield=$ac_res
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
fi
rm -rf conftest.dSYM
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
conftest$ac_exeext
if test "${ac_cv_search_sched_yield+set}" = set; then
break
fi
done
if test "${ac_cv_search_sched_yield+set}" = set; then
:
else
ac_cv_search_sched_yield=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:$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:$LINENO: checking for library containing gethostbyname_r" >&5

2
configure.in
View File

@ -892,6 +892,8 @@ AC_SEARCH_LIBS(getopt_long, [getopt gnugetopt])
AC_SEARCH_LIBS(crypt, crypt)
# 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)