initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/msw/gccpriv.h

@@ -0,0 +1,137 @@
+/*
+ Name:        wx/msw/gccpriv.h
+ Purpose:     MinGW/Cygwin definitions
+ Author:      Vadim Zeitlin
+ Modified by:
+ Created:
+ Copyright:   (c) Vadim Zeitlin
+ Licence:     wxWindows Licence
+*/
+
+/* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
+
+#ifndef _WX_MSW_GCCPRIV_H_
+#define _WX_MSW_GCCPRIV_H_
+
+#if defined(__MINGW32__) && !defined(__GNUWIN32__)
+    #define __GNUWIN32__
+#endif
+
+#if defined(__MINGW32__)
+    /*
+        Include the header defining __MINGW32_{MAJ,MIN}OR_VERSION but check
+        that UNICODE or _UNICODE is already defined, as _mingw.h relies on them
+        being set and we'd get weird compilation errors later if it is included
+        without them being defined, better give a clearer error right now.
+     */
+    #if !defined(UNICODE)
+        #error "UNICODE must be defined before including this header."
+    #endif
+
+    /*
+        MinGW 5.3.0 (and presumably later) predefines _WIN32_WINNT and WINVER
+        in sdkddkver.h included from _mingw.h to very low (Windows 2000!)
+        values. We really want to predefine them ourselves instead, so do it
+        before including _mingw.h.
+     */
+    #include "wx/msw/winver.h"
+
+    #include <_mingw.h>
+
+    /*
+        MinGW-w64 project provides compilers for both Win32 and Win64 but only
+        defines the same __MINGW32__ symbol for the former as MinGW32 toolchain
+        which is quite different (notably doesn't provide many SDK headers that
+        MinGW-w64 does include). So we define a separate symbol which, unlike
+        the predefined __MINGW64__, can be used to detect this toolchain in
+        both 32 and 64 bit builds.
+
+        And define __MINGW32_TOOLCHAIN__ for consistency and also because it's
+        convenient as we often want to have some workarounds only for the (old)
+        MinGW32 but not (newer) MinGW-w64, which still predefines __MINGW32__.
+     */
+    #ifdef __MINGW64_VERSION_MAJOR
+        #ifndef __MINGW64_TOOLCHAIN__
+            #define __MINGW64_TOOLCHAIN__
+        #endif
+    #else
+        #ifndef __MINGW32_TOOLCHAIN__
+            #define __MINGW32_TOOLCHAIN__
+        #endif
+    #endif
+
+    #define wxCHECK_MINGW32_VERSION( major, minor ) \
+ ( ( ( __MINGW32_MAJOR_VERSION > (major) ) \
+      || ( __MINGW32_MAJOR_VERSION == (major) && __MINGW32_MINOR_VERSION >= (minor) ) ) )
+#else
+    #define wxCHECK_MINGW32_VERSION( major, minor ) (0)
+#endif
+
+/* check for MinGW/Cygwin w32api version ( releases >= 0.5, only ) */
+#include <w32api.h>
+
+#if defined(__W32API_MAJOR_VERSION) && defined(__W32API_MINOR_VERSION)
+    #define wxCHECK_W32API_VERSION( major, minor ) \
+ ( ( ( __W32API_MAJOR_VERSION > (major) ) \
+      || ( __W32API_MAJOR_VERSION == (major) && __W32API_MINOR_VERSION >= (minor) ) ) )
+#else
+    #define wxCHECK_W32API_VERSION( major, minor ) (0)
+#endif
+
+/* Cygwin 1.0 */
+#if defined(__CYGWIN__) && ((__GNUC__==2) && (__GNUC_MINOR__==9))
+    #define __CYGWIN10__
+#endif
+
+/*
+    Traditional MinGW (but not MinGW-w64 nor TDM-GCC) omits many POSIX
+    functions from their headers when compiled with __STRICT_ANSI__ defined.
+    Unfortunately this means that they are not available when using -std=c++98
+    (not very common) or -std=c++11 (much more so), but we still need them even
+    in this case. As the intention behind using -std=c++11 is probably to get
+    the new C++11 features and not disable the use of POSIX functions, we just
+    manually declare the functions we need in this case if necessary.
+ */
+#ifdef __MINGW32_TOOLCHAIN__
+    /*
+        The macro below is used in wx/wxcrtbase.h included from C regex library
+        code, so make sure it compiles in non-C++ code too.
+     */
+    #ifdef __cplusplus
+        #define wxEXTERNC extern "C"
+    #else
+        #define wxEXTERNC
+    #endif
+
+    /*
+        This macro is somewhat unusual as it takes the list of parameters
+        inside parentheses and includes semicolon inside it as putting the
+        semicolon outside wouldn't do the right thing when this macro is empty.
+     */
+    #define wxDECL_FOR_MINGW32_ALWAYS(rettype, func, params) \
+        wxEXTERNC _CRTIMP rettype __cdecl __MINGW_NOTHROW func params ;
+
+    #ifdef __STRICT_ANSI__
+        #define wxNEEDS_STRICT_ANSI_WORKAROUNDS
+
+        #define wxDECL_FOR_STRICT_MINGW32(rettype, func, params) \
+            wxDECL_FOR_MINGW32_ALWAYS(rettype, func, params)
+
+        /*
+            There is a bug resulting in a compilation error in MinGW standard
+            math.h header, see https://sourceforge.net/p/mingw/bugs/2250/, work
+            around it here because math.h is also included from several other
+            standard headers (e.g. <algorithm>) and we don't want to duplicate this
+            hack everywhere this happens.
+         */
+        wxDECL_FOR_STRICT_MINGW32(double, _hypot, (double, double))
+    #else
+        #define wxDECL_FOR_STRICT_MINGW32(rettype, func, params)
+    #endif
+#else
+    #define wxDECL_FOR_MINGW32_ALWAYS(rettype, func, params)
+    #define wxDECL_FOR_STRICT_MINGW32(rettype, func, params)
+#endif
+
+#endif
+  /* _WX_MSW_GCCPRIV_H_ */