Define _XOPEN_SOURCE for Cygwin/Newlib (Issue 315)

1 files changed, 2 insertions, 6 deletions

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);