wxWidgets/include/wx/build.h
Nathan Ridge ad21cc332a Relax the ABI compatibility requirements for GCC.
Allow a library and an application to differ in __GXX_ABI_VERSION
within the range 1002-1008. The ABI changes made in this range
do not affect wxWidgets.
2015-06-19 01:44:55 -04:00

129 lines
5.1 KiB
C

///////////////////////////////////////////////////////////////////////////////
// Name: wx/build.h
// Purpose: Runtime build options checking
// Author: Vadim Zeitlin, Vaclav Slavik
// Modified by:
// Created: 07.05.02
// Copyright: (c) 2002 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_BUILD_H_
#define _WX_BUILD_H_
#include "wx/version.h"
// NB: This file contains macros for checking binary compatibility of libraries
// in multilib builds, plugins and user components.
// The WX_BUILD_OPTIONS_SIGNATURE macro expands into string that should
// uniquely identify binary compatible builds: i.e. if two builds of the
// library are binary compatible, their signature string should be the
// same; if two builds are binary incompatible, their signatures should
// be different.
//
// Therefore, wxUSE_XXX flags that affect binary compatibility (vtables,
// function signatures) should be accounted for here. So should compilers
// and compiler versions (but note that binary compatible compiler versions
// such as gcc-2.95.2 and gcc-2.95.3 should have same signature!).
// ----------------------------------------------------------------------------
// WX_BUILD_OPTIONS_SIGNATURE
// ----------------------------------------------------------------------------
#define __WX_BO_STRINGIZE(x) __WX_BO_STRINGIZE0(x)
#define __WX_BO_STRINGIZE0(x) #x
#if (wxMINOR_VERSION % 2) == 0
#define __WX_BO_VERSION(x,y,z) \
__WX_BO_STRINGIZE(x) "." __WX_BO_STRINGIZE(y)
#else
#define __WX_BO_VERSION(x,y,z) \
__WX_BO_STRINGIZE(x) "." __WX_BO_STRINGIZE(y) "." __WX_BO_STRINGIZE(z)
#endif
#if wxUSE_UNICODE_UTF8
#define __WX_BO_UNICODE "UTF-8"
#elif wxUSE_UNICODE_WCHAR
#define __WX_BO_UNICODE "wchar_t"
#else
#define __WX_BO_UNICODE "ANSI"
#endif
// GCC and Intel C++ share same C++ ABI (and possibly others in the future),
// check if compiler versions are compatible:
#if defined(__GXX_ABI_VERSION)
// The changes between ABI versions 1002 through 1008 (documented at
// https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Dialect-Options.html
// under -fabi-version) don't affect wxWidgets, so we allow a library
// and an application to differ within that range.
#if ((__GXX_ABI_VERSION >= 1002) && (__GXX_ABI_VERSION <= 1008))
#define wxGXX_EFFECTIVE_ABI_VERSION 1002
#else
#define wxGXX_EFFECTIVE_ABI_VERSION __GXX_ABI_VERSION
#endif
#define __WX_BO_COMPILER \
",compiler with C++ ABI " __WX_BO_STRINGIZE(wxGXX_EFFECTIVE_ABI_VERSION)
#elif defined(__GNUG__)
#define __WX_BO_COMPILER ",GCC " \
__WX_BO_STRINGIZE(__GNUC__) "." __WX_BO_STRINGIZE(__GNUC_MINOR__)
#elif defined(__VISUALC__)
#define __WX_BO_COMPILER ",Visual C++ " __WX_BO_STRINGIZE(_MSC_VER)
#elif defined(__INTEL_COMPILER)
// Notice that this must come after MSVC check as ICC under Windows is
// ABI-compatible with the corresponding version of the MSVC and we want to
// allow using it compile the application code using MSVC-built DLLs.
#define __WX_BO_COMPILER ",Intel C++"
#elif defined(__BORLANDC__)
#define __WX_BO_COMPILER ",Borland C++"
#else
#define __WX_BO_COMPILER
#endif
// WXWIN_COMPATIBILITY macros affect presence of virtual functions
#if WXWIN_COMPATIBILITY_2_8
#define __WX_BO_WXWIN_COMPAT_2_8 ",compatible with 2.8"
#else
#define __WX_BO_WXWIN_COMPAT_2_8
#endif
#if WXWIN_COMPATIBILITY_3_0
#define __WX_BO_WXWIN_COMPAT_3_0 ",compatible with 3.0"
#else
#define __WX_BO_WXWIN_COMPAT_3_0
#endif
// deriving wxWin containers from STL ones changes them completely:
#if wxUSE_STD_CONTAINERS
#define __WX_BO_STL ",STL containers"
#else
#define __WX_BO_STL ",wx containers"
#endif
// This macro is passed as argument to wxAppConsole::CheckBuildOptions()
#define WX_BUILD_OPTIONS_SIGNATURE \
__WX_BO_VERSION(wxMAJOR_VERSION, wxMINOR_VERSION, wxRELEASE_NUMBER) \
" (" __WX_BO_UNICODE \
__WX_BO_COMPILER \
__WX_BO_STL \
__WX_BO_WXWIN_COMPAT_2_8 __WX_BO_WXWIN_COMPAT_3_0 \
")"
// ----------------------------------------------------------------------------
// WX_CHECK_BUILD_OPTIONS
// ----------------------------------------------------------------------------
// Use this macro to check build options. Adding it to a file in DLL will
// ensure that the DLL checks build options in same way wxIMPLEMENT_APP() does.
#define WX_CHECK_BUILD_OPTIONS(libName) \
static struct wxBuildOptionsChecker \
{ \
wxBuildOptionsChecker() \
{ \
wxAppConsole::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, \
libName); \
} \
} gs_buildOptionsCheck;
#endif // _WX_BUILD_H_