#! /bin/sh
-# From configure.ac Revision: 4789 .
+# From configure.ac Revision: 4913 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61 for simgrid 3.3-cvs.
#
fi
-
-if test ".$mcsc" = .yes; then
- mcsc=yes
-elif test ".$pthread" = .yes; then
- pthread=yes
-else
- ac_header=windows.h
- as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
- if test `eval echo '${'$as_ac_Header'}'` = yes; then
- windows_context=yes
- else
- { { echo "$as_me:$LINENO: error: no appropriate backend found" >&5
-echo "$as_me: error: no appropriate backend found" >&2;}
- { (exit 1); exit 1; }; }
- fi
-fi
- if test x$windows_context = xyes; then
- IS_WINDOWS_TRUE=
- IS_WINDOWS_FALSE='#'
+if test x$pthread = xyes ; then
+ { echo "$as_me:$LINENO: checking for sem_init in -lpthread" >&5
+echo $ECHO_N "checking for sem_init in -lpthread... $ECHO_C" >&6; }
+if test "${ac_cv_lib_pthread_sem_init+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
else
- IS_WINDOWS_TRUE='#'
- IS_WINDOWS_FALSE=
-fi
-
-
-
-
-{ echo "$as_me:$LINENO: checking what kind of backend should we use" >&5
-echo $ECHO_N "checking what kind of backend should we use... $ECHO_C" >&6; }
-
-
-# Check whether --with-pthread was given.
-if test "${with_pthread+set}" = set; then
- withval=$with_pthread; with_context=pthread
-fi
-
-
-# Check whether --with-pthread was given.
-if test "${with_pthread+set}" = set; then
- withval=$with_pthread; with_context=pthread
-fi
-
-
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
-# Check whether --with-context was given.
-if test "${with_context+set}" = set; then
- withval=$with_context;
+/* 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 sem_init ();
+int
+main ()
+{
+return sem_init ();
+ ;
+ return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_link") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext &&
+ $as_test_x conftest$ac_exeext; then
+ ac_cv_lib_pthread_sem_init=yes
else
- with_context=auto
-fi
-
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
-if test "x$with_context$mcsc" = "xucontextno" ; then
- { { echo "$as_me:$LINENO: error: --with-context=ucontext specified but ucontext unusable. Relaunch configure without this argument." >&5
-echo "$as_me: error: --with-context=ucontext specified but ucontext unusable. Relaunch configure without this argument." >&2;}
- { (exit 77); exit 77; }; }
+ ac_cv_lib_pthread_sem_init=no
fi
-case $with_context in
- ucontext) ;;
- pthread) ;;
- pthreads) ;;
- windows) ;;
- auto) with_context=ucontext;;
- *) { { echo "$as_me:$LINENO: error: --with-context must be either ucontext or pthread" >&5
-echo "$as_me: error: --with-context must be either ucontext or pthread" >&2;}
- { (exit 1); exit 1; }; } ;;
-esac
-
-if test "x$with_context" = "xucontext" ; then
- if test ".$mcsc" = .yes; then
- { echo "$as_me:$LINENO: result: found working ucontext. Great!" >&5
-echo "${ECHO_T}found working ucontext. Great!" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define CONTEXT_UCONTEXT 1
-_ACEOF
-
- else
- if test ".$windows_context" = .yes ; then
- { echo "$as_me:$LINENO: result: use windows context portability layer." >&5
-echo "${ECHO_T}use windows context portability layer." >&6; }
- with_context=windows
- else
- { echo "$as_me:$LINENO: result: no working ucontext found. Try pthreads as a fallback" >&5
-echo "${ECHO_T}no working ucontext found. Try pthreads as a fallback" >&6; }
- with_context=pthread
- fi
- fi
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
fi
-
-if test "x$with_context" = "xpthreads"; then
- with_context=pthread
+{ echo "$as_me:$LINENO: result: $ac_cv_lib_pthread_sem_init" >&5
+echo "${ECHO_T}$ac_cv_lib_pthread_sem_init" >&6; }
+if test $ac_cv_lib_pthread_sem_init = yes; then
+ HAVE_SEM_INIT=yes
+else
+ HAVE_SEM_INIT=no
fi
-if test "x$with_context" = "xpthread"; then
-for ac_header in pthread.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
- { echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-ac_res=`eval echo '${'$as_ac_Header'}'`
- { echo "$as_me:$LINENO: result: $ac_res" >&5
-echo "${ECHO_T}$ac_res" >&6; }
-else
- # Is the header compilable?
-{ echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; }
-cat >conftest.$ac_ext <<_ACEOF
+ if test ${HAVE_SEM_INIT} = yes ; then
+ { echo "$as_me:$LINENO: checking if sem_init is compilable" >&5
+echo $ECHO_N "checking if sem_init is compilable... $ECHO_C" >&6; }
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-$ac_includes_default
-#include <$ac_header>
+#include <semaphore.h>
+int
+main ()
+{
+sem_t s; sem_init(&s);
+ ;
+ return 0;
+}
_ACEOF
rm -f conftest.$ac_objext
if { (ac_try="$ac_compile"
test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
} && test -s conftest.$ac_objext; then
- ac_header_compiler=yes
+ HAVE_SEM_INIT=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
- ac_header_compiler=no
+ HAVE_SEM_INIT=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6; }
+ if test ${HAVE_SEM_INIT} = yes ; then
-# Is the header present?
-{ echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; }
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SEM_INIT 1
+_ACEOF
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ else
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ fi
+ fi
+ { echo "$as_me:$LINENO: checking for sem_timedwait in -lpthread" >&5
+echo $ECHO_N "checking for sem_timedwait in -lpthread... $ECHO_C" >&6; }
+if test "${ac_cv_lib_pthread_sem_timedwait+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <$ac_header>
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sem_timedwait ();
+int
+main ()
+{
+return sem_timedwait ();
+ ;
+ return 0;
+}
_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
+rm -f conftest.$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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
- (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
+ (eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null && {
- test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
- }; then
- ac_header_preproc=yes
+ } && test -s conftest$ac_exeext &&
+ $as_test_x conftest$ac_exeext; then
+ ac_cv_lib_pthread_sem_timedwait=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
- ac_header_preproc=no
+ ac_cv_lib_pthread_sem_timedwait=no
fi
-rm -f conftest.err conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6; }
-
-# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
- yes:no: )
- { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
- ;;
- no:yes:* )
- { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
- ( cat <<\_ASBOX
-## -------------------------------------------------- ##
-## Report this to simgrid-devel@lists.gforge.inria.fr ##
-## -------------------------------------------------- ##
-_ASBOX
- ) | sed "s/^/$as_me: WARNING: /" >&2
- ;;
-esac
-{ echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_lib_pthread_sem_timedwait" >&5
+echo "${ECHO_T}$ac_cv_lib_pthread_sem_timedwait" >&6; }
+if test $ac_cv_lib_pthread_sem_timedwait = yes; then
+ HAVE_SEM_TIMEDWAIT=yes
else
- eval "$as_ac_Header=\$ac_header_preproc"
+ HAVE_SEM_TIMEDWAIT=no
fi
-ac_res=`eval echo '${'$as_ac_Header'}'`
- { echo "$as_me:$LINENO: result: $ac_res" >&5
-echo "${ECHO_T}$ac_res" >&6; }
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+ if test ${HAVE_SEM_TIMEDWAIT} = yes ; then
+ { echo "$as_me:$LINENO: checking if sem_timedwait is compilable" >&5
+echo $ECHO_N "checking if sem_timedwait is compilable... $ECHO_C" >&6; }
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <semaphore.h>
+int
+main ()
+{
+sem_t *s; const struct timespec * t; sem_timedwait(s, t);
+ ;
+ return 0;
+}
_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+ HAVE_SEM_TIMEDWAIT=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+ HAVE_SEM_TIMEDWAIT=no
fi
-done
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ if test ${HAVE_SEM_TIMEDWAIT} = yes ; then
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SEM_TIMEDWAIT 1
+_ACEOF
-{ echo "$as_me:$LINENO: checking for pthread_create in -lpthread" >&5
-echo $ECHO_N "checking for pthread_create in -lpthread... $ECHO_C" >&6; }
-if test "${ac_cv_lib_pthread_pthread_create+set}" = set; then
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ else
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ fi
+ fi
+
+ { echo "$as_me:$LINENO: checking for pthread_mutex_timedlock in -lpthread" >&5
+echo $ECHO_N "checking for pthread_mutex_timedlock in -lpthread... $ECHO_C" >&6; }
+if test "${ac_cv_lib_pthread_pthread_mutex_timedlock+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ac_check_lib_save_LIBS=$LIBS
#ifdef __cplusplus
extern "C"
#endif
-char pthread_create ();
+char pthread_mutex_timedlock ();
int
main ()
{
-return pthread_create ();
+return pthread_mutex_timedlock ();
;
return 0;
}
test ! -s conftest.err
} && test -s conftest$ac_exeext &&
$as_test_x conftest$ac_exeext; then
- ac_cv_lib_pthread_pthread_create=yes
+ ac_cv_lib_pthread_pthread_mutex_timedlock=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
- ac_cv_lib_pthread_pthread_create=no
+ ac_cv_lib_pthread_pthread_mutex_timedlock=no
fi
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
-{ echo "$as_me:$LINENO: result: $ac_cv_lib_pthread_pthread_create" >&5
-echo "${ECHO_T}$ac_cv_lib_pthread_pthread_create" >&6; }
-if test $ac_cv_lib_pthread_pthread_create = yes; then
- cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBPTHREAD 1
+{ echo "$as_me:$LINENO: result: $ac_cv_lib_pthread_pthread_mutex_timedlock" >&5
+echo "${ECHO_T}$ac_cv_lib_pthread_pthread_mutex_timedlock" >&6; }
+if test $ac_cv_lib_pthread_pthread_mutex_timedlock = yes; then
+ HAVE_MUTEX_TIMEDLOCK=yes
+else
+ HAVE_MUTEX_TIMEDLOCK=no
+fi
+
+ if test ${HAVE_MUTEX_TIMEDLOCK} = yes ; then
+ { echo "$as_me:$LINENO: checking if pthread_mutex_timedlock is compilable" >&5
+echo $ECHO_N "checking if pthread_mutex_timedlock is compilable... $ECHO_C" >&6; }
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <pthread.h>
+int
+main ()
+{
+pthread_mutex_t s; const struct timespec t; sem_timedlock(&s, &t);
+ ;
+ return 0;
+}
_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+ HAVE_MUTEX_TIMEDLOCK=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ HAVE_MUTEX_TIMEDLOCK=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ if test ${HAVE_MUTEX_TIMEDLOCK} = yes ; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MUTEX_TIMEDLOCK 1
+_ACEOF
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ else
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ fi
+ fi
+fi
- LIBS="-lpthread $LIBS"
+if test ".$mcsc" = .yes; then
+ # ucontext found
+ mcsc=yes
+elif test ".$pthread" = .yes; then
+ # ucontext not found, but pthread found
+ pthread=yes
else
- { { echo "$as_me:$LINENO: error: Cannot find pthreads (try --with-context=ucontext if you haven't already tried)." >&5
-echo "$as_me: error: Cannot find pthreads (try --with-context=ucontext if you haven't already tried)." >&2;}
+ ac_header=windows.h
+ as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ windows_context=yes
+ else
+ { { echo "$as_me:$LINENO: error: no appropriate backend found" >&5
+echo "$as_me: error: no appropriate backend found" >&2;}
{ (exit 1); exit 1; }; }
+ fi
+fi
+ if test x$windows_context = xyes; then
+ IS_WINDOWS_TRUE=
+ IS_WINDOWS_FALSE='#'
+else
+ IS_WINDOWS_TRUE='#'
+ IS_WINDOWS_FALSE=
+fi
+
+
+
+
+{ echo "$as_me:$LINENO: checking what kind of backend should we use" >&5
+echo $ECHO_N "checking what kind of backend should we use... $ECHO_C" >&6; }
+
+
+# Check whether --with-pthread was given.
+if test "${with_pthread+set}" = set; then
+ withval=$with_pthread; with_context=pthread
fi
+# Check whether --with-pthread was given.
+if test "${with_pthread+set}" = set; then
+ withval=$with_pthread; with_context=pthread
+fi
+
+
+
+# Check whether --with-context was given.
+if test "${with_context+set}" = set; then
+ withval=$with_context;
+else
+ with_context=auto
+fi
+
+
+if test "x$with_context$mcsc" = "xucontextno" ; then
+ { { echo "$as_me:$LINENO: error: --with-context=ucontext specified but ucontext unusable. Relaunch configure without this argument." >&5
+echo "$as_me: error: --with-context=ucontext specified but ucontext unusable. Relaunch configure without this argument." >&2;}
+ { (exit 77); exit 77; }; }
+fi
+
+case $with_context in
+ ucontext) ;;
+ pthread) ;;
+ pthreads) ;;
+ windows) ;;
+ auto) with_context=ucontext;;
+ *) { { echo "$as_me:$LINENO: error: --with-context must be either ucontext or pthread" >&5
+echo "$as_me: error: --with-context must be either ucontext or pthread" >&2;}
+ { (exit 1); exit 1; }; } ;;
+esac
+
+if test "x$with_context" = "xucontext" ; then
+ if test ".$mcsc" = .yes; then
+ { echo "$as_me:$LINENO: result: found working ucontext. Great!" >&5
+echo "${ECHO_T}found working ucontext. Great!" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define CONTEXT_UCONTEXT 1
+_ACEOF
+
+ else
+ if test ".$windows_context" = .yes ; then
+ { echo "$as_me:$LINENO: result: use windows context portability layer." >&5
+echo "${ECHO_T}use windows context portability layer." >&6; }
+ with_context=windows
+ else
+ { echo "$as_me:$LINENO: result: no working ucontext found. Try pthreads as a fallback" >&5
+echo "${ECHO_T}no working ucontext found. Try pthreads as a fallback" >&6; }
+ with_context=pthread
+ fi
+ fi
+fi
+
+if test "x$with_context" = "xpthread"; then
+ if test x$pthread != xyes ; then # reuse previous checks
+ { { echo "$as_me:$LINENO: error: Cannot find pthreads (try --with-context=ucontext if you haven't already tried)." >&5
+echo "$as_me: error: Cannot find pthreads (try --with-context=ucontext if you haven't already tried)." >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+
cat >>confdefs.h <<\_ACEOF
#define CONTEXT_THREADS 1
_ACEOF
