[newlib-cygwin] Cygwin: Add missing Linux #define of CPU_SETSIZE

[Corinna Vinschen <corinna at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7b6414d459bb66affe077a062b88ca1e1e392fc4

commit 7b6414d459bb66affe077a062b88ca1e1e392fc4
Author: Mark Geisert <mark@maxrnd.com>
Date:   Sun Dec 22 22:45:54 2019 -0800

    Cygwin: Add missing Linux #define of CPU_SETSIZE
    
    Though our implementation of cpu sets doesn't need it, software from
    Linux environments expects this definition to be present.  It's
    documented on the Linux CPU_SET(3) man page but was left out due to
    oversight.
    
    Addresses https://cygwin.com/ml/cygwin/2019-12/msg00248.html

Diff:
---
 winsup/cygwin/include/sys/cpuset.h | 1 +
 winsup/cygwin/release/3.1.3        | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/winsup/cygwin/include/sys/cpuset.h b/winsup/cygwin/include/sys/cpuset.h
index 1adf48d..5725651 100644
--- a/winsup/cygwin/include/sys/cpuset.h
+++ b/winsup/cygwin/include/sys/cpuset.h
@@ -89,6 +89,7 @@ int __sched_getaffinity_sys (pid_t, size_t, cpu_set_t *);
 #define CPU_XOR(dst, src1, src2)  CPU_XOR_S(sizeof (cpu_set_t), dst, src1, src2)
 #define CPU_EQUAL(src1, src2)     CPU_EQUAL_S(sizeof (cpu_set_t), src1, src2)
 
+#define CPU_SETSIZE               __CPU_SETSIZE
 #endif /* __GNU_VISIBLE */
 
 #ifdef __cplusplus
diff --git a/winsup/cygwin/release/3.1.3 b/winsup/cygwin/release/3.1.3
new file mode 100644
index 0000000..d698b44
--- /dev/null
+++ b/winsup/cygwin/release/3.1.3
@@ -0,0 +1,5 @@
+Bug Fixes
+---------
+
+- Define CPU_SETSIZE, as on Linux.
+  Addresses: https://cygwin.com/ml/cygwin/2019-12/msg00248.html