Skip test pthread_cond_init/4-2.c since Emscripten does not support signals.

Author: juj

conformance/interfaces/pthread_cond_init/4-2.c

@@ -237,7 +237,12 @@ int main (int argc, char * argv[])
 	int ret;
 	pthread_t th_work, th_sig1, th_sig2;
 	thestruct arg1, arg2;
-	
+
+#ifdef __EMSCRIPTEN__
+	printf("Test SKIPPED: signals are not supported in Emscripten.\n");
+	exit(0);
+#endif
+
 	output_init();
 
 	#ifdef WITH_SYNCHRO