Fix compilation of _testembed.c without threads
diff --git a/Modules/_testembed.c b/Modules/_testembed.c
index 0df5ede..51b439f 100644
--- a/Modules/_testembed.c
+++ b/Modules/_testembed.c
@@ -17,7 +17,9 @@
int main(int argc, char *argv[])
{
PyThreadState *mainstate, *substate;
+#ifdef WITH_THREAD
PyGILState_STATE gilstate;
+#endif
int i, j;
for (i=0; i<3; i++) {
@@ -28,10 +30,12 @@
Py_Initialize();
mainstate = PyThreadState_Get();
+#ifdef WITH_THREAD
PyEval_InitThreads();
PyEval_ReleaseThread(mainstate);
gilstate = PyGILState_Ensure();
+#endif
print_subinterp();
PyThreadState_Swap(NULL);
@@ -43,7 +47,9 @@
PyThreadState_Swap(mainstate);
print_subinterp();
+#ifdef WITH_THREAD
PyGILState_Release(gilstate);
+#endif
PyEval_RestoreThread(mainstate);
Py_Finalize();