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-rw-r--r--Modules/_multiprocessing/multiprocessing.h15
1 files changed, 10 insertions, 5 deletions
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
*/