diff --git a/Modules/_multiprocessing/multiprocessing.h b/Modules/_multiprocessing/multiprocessing.h
index 57eb7b4..ec5042c 100644
--- a/Modules/_multiprocessing/multiprocessing.h
+++ b/Modules/_multiprocessing/multiprocessing.h
@@ -37,6 +37,17 @@
 #endif
 
 /*
+ * 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
+#endif
+
+/*
  * Make sure Py_ssize_t available
  */