db966da330
The bug that resulted in creating huge DLLs that took inordinate amounts of
memory and time to link with g++ 4.5 has been fixed in 4.7, so don't export
everything when using it, as this results in even smaller DLLs.
The situation with 4.6 is unknown, so leave behaviour with it unchanged.
See 49d2c0adc3
317 lines
10 KiB
C
317 lines
10 KiB
C
/*
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* Name: wx/dlimpexp.h
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* Purpose: Macros for declaring DLL-imported/exported functions
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* Author: Vadim Zeitlin
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* Modified by:
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* Created: 16.10.2003 (extracted from wx/defs.h)
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* Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
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* Licence: wxWindows licence
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*/
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/*
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This is a C file, not C++ one, do not use C++ comments here!
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*/
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#ifndef _WX_DLIMPEXP_H_
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#define _WX_DLIMPEXP_H_
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#if defined(HAVE_VISIBILITY)
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# define WXEXPORT __attribute__ ((visibility("default")))
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# define WXIMPORT __attribute__ ((visibility("default")))
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#elif defined(__WINDOWS__)
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/*
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__declspec works in BC++ 5 and later as well as VC++.
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*/
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# if defined(__VISUALC__) || defined(__BORLANDC__)
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# define WXEXPORT __declspec(dllexport)
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# define WXIMPORT __declspec(dllimport)
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/*
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While gcc also supports __declspec(dllexport), it created unusably huge
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DLL files in gcc 4.[56] (while taking horribly long amounts of time),
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see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43601. Because of this
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we rely on binutils auto export/import support which seems to work
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quite well for 4.5+. However the problem was fixed in 4.7 and later and
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not exporting everything creates smaller DLLs (~8% size difference), so
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do use the explicit attributes again for the newer versions.
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*/
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# elif defined(__GNUC__) && \
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(!wxCHECK_GCC_VERSION(4, 5) || wxCHECK_GCC_VERSION(4, 7))
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/*
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__declspec could be used here too but let's use the native
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__attribute__ instead for clarity.
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*/
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# define WXEXPORT __attribute__((dllexport))
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# define WXIMPORT __attribute__((dllimport))
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# endif
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#elif defined(__CYGWIN__)
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# define WXEXPORT __declspec(dllexport)
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# define WXIMPORT __declspec(dllimport)
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#endif
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/* for other platforms/compilers we don't anything */
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#ifndef WXEXPORT
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# define WXEXPORT
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# define WXIMPORT
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#endif
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/*
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We support building wxWidgets as a set of several libraries but we don't
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support arbitrary combinations of libs/DLLs: either we build all of them as
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DLLs (in which case WXMAKINGDLL is defined) or none (it isn't).
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However we have a problem because we need separate WXDLLIMPEXP versions for
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different libraries as, for example, wxString class should be dllexported
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when compiled in wxBase and dllimported otherwise, so we do define separate
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WXMAKING/USINGDLL_XYZ constants for each component XYZ.
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*/
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#ifdef WXMAKINGDLL
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# if wxUSE_BASE
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# define WXMAKINGDLL_BASE
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# endif
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# define WXMAKINGDLL_NET
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# define WXMAKINGDLL_CORE
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# define WXMAKINGDLL_ADV
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# define WXMAKINGDLL_QA
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# define WXMAKINGDLL_HTML
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# define WXMAKINGDLL_GL
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# define WXMAKINGDLL_XML
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# define WXMAKINGDLL_XRC
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# define WXMAKINGDLL_AUI
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# define WXMAKINGDLL_PROPGRID
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# define WXMAKINGDLL_RIBBON
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# define WXMAKINGDLL_RICHTEXT
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# define WXMAKINGDLL_MEDIA
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# define WXMAKINGDLL_STC
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# define WXMAKINGDLL_WEBVIEW
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#endif /* WXMAKINGDLL */
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/*
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WXDLLIMPEXP_CORE maps to export declaration when building the DLL, to import
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declaration if using it or to nothing at all if we don't use wxWin as DLL
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*/
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#ifdef WXMAKINGDLL_BASE
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# define WXDLLIMPEXP_BASE WXEXPORT
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# define WXDLLIMPEXP_DATA_BASE(type) WXEXPORT type
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# if defined(HAVE_VISIBILITY)
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# define WXDLLIMPEXP_INLINE_BASE WXEXPORT
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# else
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# define WXDLLIMPEXP_INLINE_BASE
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# endif
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_BASE WXIMPORT
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# define WXDLLIMPEXP_DATA_BASE(type) WXIMPORT type
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# if defined(HAVE_VISIBILITY)
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# define WXDLLIMPEXP_INLINE_BASE WXIMPORT
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# else
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# define WXDLLIMPEXP_INLINE_BASE
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# endif
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_BASE
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# define WXDLLIMPEXP_DATA_BASE(type) type
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# define WXDLLIMPEXP_INLINE_BASE
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#endif
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#ifdef WXMAKINGDLL_NET
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# define WXDLLIMPEXP_NET WXEXPORT
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# define WXDLLIMPEXP_DATA_NET(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_NET WXIMPORT
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# define WXDLLIMPEXP_DATA_NET(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_NET
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# define WXDLLIMPEXP_DATA_NET(type) type
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#endif
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#ifdef WXMAKINGDLL_CORE
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# define WXDLLIMPEXP_CORE WXEXPORT
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# define WXDLLIMPEXP_DATA_CORE(type) WXEXPORT type
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# if defined(HAVE_VISIBILITY)
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# define WXDLLIMPEXP_INLINE_CORE WXEXPORT
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# else
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# define WXDLLIMPEXP_INLINE_CORE
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# endif
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_CORE WXIMPORT
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# define WXDLLIMPEXP_DATA_CORE(type) WXIMPORT type
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# if defined(HAVE_VISIBILITY)
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# define WXDLLIMPEXP_INLINE_CORE WXIMPORT
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# else
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# define WXDLLIMPEXP_INLINE_CORE
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# endif
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_CORE
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# define WXDLLIMPEXP_DATA_CORE(type) type
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# define WXDLLIMPEXP_INLINE_CORE
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#endif
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#ifdef WXMAKINGDLL_ADV
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# define WXDLLIMPEXP_ADV WXEXPORT
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# define WXDLLIMPEXP_DATA_ADV(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_ADV WXIMPORT
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# define WXDLLIMPEXP_DATA_ADV(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_ADV
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# define WXDLLIMPEXP_DATA_ADV(type) type
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#endif
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#ifdef WXMAKINGDLL_QA
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# define WXDLLIMPEXP_QA WXEXPORT
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# define WXDLLIMPEXP_DATA_QA(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_QA WXIMPORT
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# define WXDLLIMPEXP_DATA_QA(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_QA
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# define WXDLLIMPEXP_DATA_QA(type) type
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#endif
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#ifdef WXMAKINGDLL_HTML
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# define WXDLLIMPEXP_HTML WXEXPORT
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# define WXDLLIMPEXP_DATA_HTML(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_HTML WXIMPORT
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# define WXDLLIMPEXP_DATA_HTML(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_HTML
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# define WXDLLIMPEXP_DATA_HTML(type) type
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#endif
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#ifdef WXMAKINGDLL_GL
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# define WXDLLIMPEXP_GL WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_GL WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_GL
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#endif
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#ifdef WXMAKINGDLL_XML
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# define WXDLLIMPEXP_XML WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_XML WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_XML
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#endif
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#ifdef WXMAKINGDLL_XRC
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# define WXDLLIMPEXP_XRC WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_XRC WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_XRC
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#endif
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#ifdef WXMAKINGDLL_AUI
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# define WXDLLIMPEXP_AUI WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_AUI WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_AUI
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#endif
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#ifdef WXMAKINGDLL_PROPGRID
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# define WXDLLIMPEXP_PROPGRID WXEXPORT
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# define WXDLLIMPEXP_DATA_PROPGRID(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_PROPGRID WXIMPORT
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# define WXDLLIMPEXP_DATA_PROPGRID(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_PROPGRID
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# define WXDLLIMPEXP_DATA_PROPGRID(type) type
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#endif
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#ifdef WXMAKINGDLL_RIBBON
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# define WXDLLIMPEXP_RIBBON WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_RIBBON WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_RIBBON
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#endif
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#ifdef WXMAKINGDLL_RICHTEXT
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# define WXDLLIMPEXP_RICHTEXT WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_RICHTEXT WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_RICHTEXT
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#endif
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#ifdef WXMAKINGDLL_MEDIA
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# define WXDLLIMPEXP_MEDIA WXEXPORT
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_MEDIA WXIMPORT
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_MEDIA
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#endif
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#ifdef WXMAKINGDLL_STC
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# define WXDLLIMPEXP_STC WXEXPORT
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# define WXDLLIMPEXP_DATA_STC(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_STC WXIMPORT
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# define WXDLLIMPEXP_DATA_STC(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_STC
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# define WXDLLIMPEXP_DATA_STC(type) type
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#endif
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#ifdef WXMAKINGDLL_WEBVIEW
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# define WXDLLIMPEXP_WEBVIEW WXEXPORT
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# define WXDLLIMPEXP_DATA_WEBVIEW(type) WXEXPORT type
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#elif defined(WXUSINGDLL)
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# define WXDLLIMPEXP_WEBVIEW WXIMPORT
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# define WXDLLIMPEXP_DATA_WEBVIEW(type) WXIMPORT type
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#else /* not making nor using DLL */
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# define WXDLLIMPEXP_WEBVIEW
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# define WXDLLIMPEXP_DATA_WEBVIEW(type) type
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#endif
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/*
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GCC warns about using __attribute__ (and also __declspec in mingw32 case) on
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forward declarations while MSVC complains about forward declarations without
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__declspec for the classes later declared with it, so we need a separate set
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of macros for forward declarations to hide this difference:
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*/
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#if defined(HAVE_VISIBILITY) || (defined(__WINDOWS__) && defined(__GNUC__))
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#define WXDLLIMPEXP_FWD_BASE
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#define WXDLLIMPEXP_FWD_NET
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#define WXDLLIMPEXP_FWD_CORE
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#define WXDLLIMPEXP_FWD_ADV
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#define WXDLLIMPEXP_FWD_QA
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#define WXDLLIMPEXP_FWD_HTML
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#define WXDLLIMPEXP_FWD_GL
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#define WXDLLIMPEXP_FWD_XML
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#define WXDLLIMPEXP_FWD_XRC
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#define WXDLLIMPEXP_FWD_AUI
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#define WXDLLIMPEXP_FWD_PROPGRID
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#define WXDLLIMPEXP_FWD_RIBBON
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#define WXDLLIMPEXP_FWD_RICHTEXT
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#define WXDLLIMPEXP_FWD_MEDIA
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#define WXDLLIMPEXP_FWD_STC
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#define WXDLLIMPEXP_FWD_WEBVIEW
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#else
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#define WXDLLIMPEXP_FWD_BASE WXDLLIMPEXP_BASE
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#define WXDLLIMPEXP_FWD_NET WXDLLIMPEXP_NET
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#define WXDLLIMPEXP_FWD_CORE WXDLLIMPEXP_CORE
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#define WXDLLIMPEXP_FWD_ADV WXDLLIMPEXP_ADV
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#define WXDLLIMPEXP_FWD_QA WXDLLIMPEXP_QA
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#define WXDLLIMPEXP_FWD_HTML WXDLLIMPEXP_HTML
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#define WXDLLIMPEXP_FWD_GL WXDLLIMPEXP_GL
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#define WXDLLIMPEXP_FWD_XML WXDLLIMPEXP_XML
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#define WXDLLIMPEXP_FWD_XRC WXDLLIMPEXP_XRC
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#define WXDLLIMPEXP_FWD_AUI WXDLLIMPEXP_AUI
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#define WXDLLIMPEXP_FWD_PROPGRID WXDLLIMPEXP_PROPGRID
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#define WXDLLIMPEXP_FWD_RIBBON WXDLLIMPEXP_RIBBON
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#define WXDLLIMPEXP_FWD_RICHTEXT WXDLLIMPEXP_RICHTEXT
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#define WXDLLIMPEXP_FWD_MEDIA WXDLLIMPEXP_MEDIA
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#define WXDLLIMPEXP_FWD_STC WXDLLIMPEXP_STC
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#define WXDLLIMPEXP_FWD_WEBVIEW WXDLLIMPEXP_WEBVIEW
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#endif
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/* for backwards compatibility, define suffix-less versions too */
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#define WXDLLEXPORT WXDLLIMPEXP_CORE
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#define WXDLLEXPORT_DATA WXDLLIMPEXP_DATA_CORE
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#endif /* _WX_DLIMPEXP_H_ */
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