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* README.win32: More editing. * build-dll: Use gcc, not ld to link. * glib.h: On native Win32 use _unlink(). * gscanner.c: Use corrent NATIVE_WIN32 feature test macro, not _MSC_VER. * gstring.c: Include <io.h> on Win32 for _read prototype. * gutils.c: Remove old IO channel code (was in #if 0). * makefile.cygwin: Don't need to link with kernel32 and msvcrt explicitly, they are included anyway.
90 lines
4.9 KiB
Plaintext
90 lines
4.9 KiB
Plaintext
For more information about the port or GLib, GTk+ and the GIMP to
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native Windows, and pre-built binary packages, see
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http://www.iki.fi/tml/gimp/win32/ . "Native" means that we use the
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Win32 API only, and not any POSIX emulation layer except that provided
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by the Microsoft runtime C library. Additionally, a pthreads emulation
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library is used.
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To build GLib on Win32, you can use either the Microsoft compiler and
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tools, or gcc. Both the compiler from MSVC 5.0 and from MSVC 6.0 have
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been used successfully. With gcc I mean egcs-1.1.2 (as distributed by
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Mumit Khan), running under cygwin-b20.1.
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If you build with gcc, note that the produced executables and DLLs do
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*not* require the cygwin dll (gcc -mno-cygwin). That's the whole point
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of this porting effort, more or less.
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The egcs support was added quite recently, but seems to
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work. Debugging with gdb works. I prefer to use the msvcrt runtime and
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not the default crtdll. This can be achieved by applying the following
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diff to the specs file, which typically is installed as
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C:/cygnus/cygwin-b20/H-i586-cygwin32/lib/gcc-lib/i586-cygwin32/egcs-2.91.66/specs.
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Sorry for the illegibility of this diff, but the specs file is like
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that... This diff replaces -lcrtdll with -lmsvcrt, replaces crt1 with
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crt2, and defines __MSVCRT__.
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--- specs.ORIG Sun Apr 25 00:40:40 1999
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+++ specs Sun Apr 25 00:48:04 1999
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@@ -23 +23 @@
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-%{pg:-lgmon} %{!mno-cygwin:-lcygwin} %{mno-cygwin:-lmingw32 -lmoldname -lcrtdll} %{mwindows:-luser32 -lgdi32 -lcomdlg32} -lkernel32 -ladvapi32 -lshell32
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+%{pg:-lgmon} %{!mno-cygwin:-lcygwin} %{mno-cygwin:-lmingw32 -lmoldname -lmsvcrt} %{mwindows:-luser32 -lgdi32 -lcomdlg32} -lkernel32 -ladvapi32 -lshell32
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@@ -29 +29 @@
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-%{mdll: %{!mno-cygwin:dllcrt0%O%s} %{mno-cygwin:dllcrt1%O%s}} %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:crt1%O%s} %{pg:gcrt0%O%s}}
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+%{mdll: %{!mno-cygwin:dllcrt0%O%s} %{mno-cygwin:dllcrt2%O%s}} %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:crt2%O%s} %{pg:gcrt0%O%s}}
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@@ -38 +38 @@
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--Di386 -D_WIN32 -DWINNT -D_X86_=1 -D__STDC__=1 -D__stdcall=__attribute__((__stdcall__)) -D__cdecl=__attribute__((__cdecl__)) -D__declspec(x)=__attribute__((x)) -Asystem(winnt) -Acpu(i386) -Amachine(i386)
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+-Di386 -D_WIN32 %{mno-cygwin:-D__MSVCRT__ } -DWINNT -D_X86_=1 -D__STDC__=1 -D__stdcall=__attribute__((__stdcall__)) -D__cdecl=__attribute__((__cdecl__)) -D__declspec(x)=__attribute__((x)) -Asystem(winnt) -Acpu(i386) -Amachine(i386)
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Note: If you build with gcc, you should also fix the definition of
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_dev_t in the header mingw32/sys/types.h to correspond to what it
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actually is used by msvcrt.dll. It should be unsigned int, not
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short. Otherwise stat() calls will fail.
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Before building you must get the pthreads library for Win32 from
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http://sourceware.cygnus.com/pthreads-win32/. The pthreads-win32
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snapshot from 1999-04-07 is the one that should be used. Edit the
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location of the pthreads library and include files in makefile.msc.
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If using the Microsoft toolchain, build with `nmake -f
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makefile.msc`. Install with `nmake -f makefile.msc install`. If using
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egcs, build using `make -f makefile.cygwin`.
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To test the GLib functions, go to the tests subdirectory and enter
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`nmake -f makefile.msc check`.
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If you would want to use the cygwin tools to generate executables that
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*do* use the cygwin runtime, the normal Unix configuration method
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should work as if on Unix (knock on wood).
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With a little work, it might be possible to use the ./configure
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mechanism also with a "mingw32" configuration.
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The following preprocessor macros are used for conditional compilation
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related to Win32:
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- WIN32 is defined when compiling for the Win32 platform, regardless
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if using the X11 or Win32 windowing API (in the case of GLib, this
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dimension isn't significant), regardless whether using a more or
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less complete POSIX emulation runtime layer (like Cygwin) or not.
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- NATIVE_WIN32 is defined when compiling for Win32, *and* without
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any POSIX emulation, other that to the extent provided by the
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bundled Microsoft C library and the pthreads-win32 library. For
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instance, pathnames are in the native Windows syntax.
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The Win32 port uses the combination with both of those on.
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Additionally, there are the compiler-specific macros:
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- _MSC_VER is defined when using the Microsoft compiler
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- __GNUC__ is defined when using GCC (i.e. egcs)
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Some of the usage of these macros was a bit mixed up, and had to be
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straightened out when adding the gcc support. In particular, I used to
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check for _MSC_VER in some places where I really wanted to check for
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the Microsoft C library, and those checks has now been changed to
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NATIVE_WIN32.
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The pthreads for Win32 package that the thread support uses isn't
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quite ready yet, and thus threads really should not be relied upon.
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