From a0bb490056396233363c8822903fead429f7ef5b Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 10 Mar 2017 01:53:51 -0500
Subject: Define _XOPEN_SOURCE for Cygwin/Newlib (Issue 315)

---
 ossig.h | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'ossig.h')

diff --git a/ossig.h b/ossig.h
index 94395a02..2e39ea2b 100644
--- a/ossig.h
+++ b/ossig.h
@@ -33,7 +33,7 @@ extern "C" {
 //!   external "C++" linkage.
 //! \sa SignalHandler, SignalHandlerFn
 extern "C" {
-	inline void NullSignalHandler(int unused) {CRYPTOPP_UNUSED(unused);}
+    inline void NullSignalHandler(int unused) {CRYPTOPP_UNUSED(unused);}
 };
 
 //! Signal handler for Linux and Unix compatibles
@@ -82,13 +82,9 @@ struct SignalHandler
             // Don't step on another's handler if Overwrite=false
             if (m_old.sa_handler != 0 && !O) break;
 
-#if defined __CYGWIN__
-            // http://github.com/weidai11/cryptopp/issues/315
-            memset(&new_handler, 0x00, sizeof(new_handler));
-#else
+            // Cygwin/Newlib requires -D_XOPEN_SOURCE=700
             ret = sigemptyset (&new_handler.sa_mask);
             if (ret != 0) break; // Failed
-#endif
 
             new_handler.sa_handler = (pfn ? pfn : &NullSignalHandler);
             new_handler.sa_flags = (pfn ? flags : 0);
-- 
cgit v1.2.1