From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 22 Jun 2007 15:11:27 +0000 (+0000)
Subject: suppress Sun CC warnings about casting between C++ and extern C function pointers
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/7d10ec93c4b0c4db9d4450bc39c6c127bfab57fe

suppress Sun CC warnings about casting between C++ and extern C function pointers


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/unix/appunix.cpp b/src/unix/appunix.cpp
index 691a8a544e..0bca1979a9 100644
--- a/src/unix/appunix.cpp
+++ b/src/unix/appunix.cpp
@@ -52,13 +52,23 @@ void wxAppConsole::CheckSignal()
     }
 }
 
+// the type of the signal handlers we use is "void(*)(int)" while the real
+// signal handlers are extern "C" and so have incompatible type and at least
+// Sun CC warns about it, so use explicit casts to suppress these warnings as
+// they should be harmless
+extern "C"
+{
+    typedef void (*SignalHandler_t)(int);
+}
+
 bool wxAppConsole::SetSignalHandler(int signal, SignalHandler handler)
 {
-    const bool install = handler != SIG_DFL && handler != SIG_IGN;
+    const bool install = (SignalHandler_t)handler != SIG_DFL &&
+                         (SignalHandler_t)handler != SIG_IGN;
 
     struct sigaction sa;
     memset(&sa, 0, sizeof(sa));
-    sa.sa_handler = &wxAppConsole::HandleSignal;
+    sa.sa_handler = (SignalHandler_t)&wxAppConsole::HandleSignal;
     sa.sa_flags = SA_RESTART;
     int res = sigaction(signal, &sa, 0);
     if ( res != 0 )