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README.MinGW
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README.MinGW
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Compiling GNUstep on MinGW
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==========================
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MinGW is a collection of header files and import libraries that allow
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one to use GCC and produce native Windows32 programs that do not rely
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on any 3rd-party DLLs. GNUstep has only partially been ported to MinGW
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so expect some problems when trying to compile. Also, there are still
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subtle problems with running GNU tools on Windows, so any problems you
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may encounter may just as easly have to do with the compilation tools
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you are using as with GNUstep.
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MinGW on Cygwin
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---------------
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This is the only configuration I've tested so far. This method
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uses the Cygwin tools to help out with the configuration and
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compilation of the libraries. It's always good to get the very latest
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version of Cygwin and MinGW. These instructions were performed with
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Cygwin DLL 1.1.4 and MingW gcc 2.95.2-1. If you have more experience
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with MinGW than me, please help improve these instructions!
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I assume you have installed Cygwin and MinGW, and dowloaded and
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unpacked the GNUstep core package. You also need to download a version
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of the Objective-C runtime that compiles as a shared library
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(DLL). See the GNUstep-HOWTO file for more information on where to get
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various files.
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1. First, start up a Cygwin BASH shell and make sure the MinGW tools
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are in your path:
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export PATH=//c/gcc-2.95.2-1/bin:$PATH
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(Put in whatever path you have for the mingw tools).
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2. The default location for GNUstep on Unix systems in /usr/GNUstep, but
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there is no default for Windows machines, so you need to set that up
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first with the GNUSTEP_SYSTEM_ROOT environment variable. To put it in
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a similar location, you might try:
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export GNUSTEP_SYSTEM_ROOT=//c/cygwin/usr/GNUstep/System
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But you can put it anywhere you like (as long as you specify the full
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path with the disk label so MinGW can find it). You can also specify this
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with configure, using the --prefix=//c/cygwin/usr/GNUstep/System option.
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3. For various reasons, we need to configure and build each
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sub-package separately. So first, go to the 'make' subdirectory of the
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core package and configure:
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cd make
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./configure --target=i386-mingw32
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4. Now build the Makefile package. For some reason, the make that comes
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with MinGW doesn't like the way GNUstep makefiles are setup (or perhaps
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it's that MingW make doesn't work with bash), so use Cygwin's make:
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/usr/bin/make target=i386-mingw32
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/usr/bin/make target=i386-mingw32 install
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5. Now source the GNUstep.sh file so the rest of the packages will
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compile correctly:
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. $GNUSTEP_SYSTEM_ROOT/Makefiles/GNUstep.sh
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6. Now you can compile the Objective-C runtime DLL (unless you already
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have one installed):
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cd location_of_the_libobjc_library
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/usr/bin/make target=i386-mingw32
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/usr/bin/make target=i386-mingw32 install
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7. Now we can configure and make the base library.
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cd location_of_the_core_package/base
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./configure --target=i386-mingw32
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/usr/bin/make target=i386-mingw32
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/usr/bin/make target=i386-mingw32 install
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Note that the base library is not completely ported to run on MinGW yet.
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In particular, the gstep-base DLL doesn't seem to be set up correctly.
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To compile the gstep-base as a static library, use:
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/usr/bin/make shared=no
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If you get tired of typing "target=i386-mingw32" all the time, then before
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you exec the GNUstep.sh script, just set the GNUSTEP_HOST:
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export GNUSTEP_HOST=i586-pc-mingw32
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. $GNUSTEP_SYSTEM_ROOT/Makefiles/GNUstep.sh
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Native MinGW
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------------
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(Information provided by Craig Miskell)
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So far, this configuration only works when compiling the Makefile package
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(gstep-make). It should, in the future work on the libraries. First, you
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need to get a port of sh (probably zsh) for Windows
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(ftp://ftp.blarg.net/users/amol/).
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1. Make sure $HOST_CC or $CC is set to MinGW's gcc. The default seems to be
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wrong.
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2. Now configure. You may need to set the installation directory, because
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the default installation dir is for Unix machines:
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./configure --prefix=/usr/GNUstep/System
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(Make sure the drive is specified correctly in the path).
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3. Then make and install
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make
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make install
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4. Now source the GNUstep.sh file so the rest of the packages will
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compile correctly:
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. $GNUSTEP_SYSTEM_ROOT/Makefiles/GNUstep.sh
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