diff --git a/Modules/_multiprocessing/multiprocessing.h b/Modules/_multiprocessing/multiprocessing.h
index f6ab994..f8750d2 100644
--- a/Modules/_multiprocessing/multiprocessing.h
+++ b/Modules/_multiprocessing/multiprocessing.h
@@ -45,13 +45,18 @@
  * Issue 3110 - Solaris does not define SEM_VALUE_MAX
  */
 #ifndef SEM_VALUE_MAX
-#  ifdef _SEM_VALUE_MAX
-#    define SEM_VALUE_MAX _SEM_VALUE_MAX
-#  else
-#    define SEM_VALUE_MAX INT_MAX
-#  endif
+	#if defined(HAVE_SYSCONF) && defined(_SC_SEM_VALUE_MAX)
+		# define SEM_VALUE_MAX sysconf(_SC_SEM_VALUE_MAX)
+	#elif defined(_SEM_VALUE_MAX)
+		# define SEM_VALUE_MAX _SEM_VALUE_MAX
+	#elif definef(_POSIX_SEM_VALUE_MAX)
+		# define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
+	#else
+		# define SEM_VALUE_MAX INT_MAX
+	#endif
 #endif
 
+
 /*
  * Make sure Py_ssize_t available
  */