John Wicket wrote:
> yea, that is probably what I need. Can you post in a step-by-step way.
Here is a set of instructions for what I had to do to get FreeGLUT
working with GHCi.
<RANT>
Just a little warning: my instructions could be wrong in some places.
Normally, in order to verify my instructions, I would uninstall
everything, start from scratch, follow my instructions step by step,
and verify that they work.
Unfortunately:
* I have low confidence in the accuracy of the following instructions.
* I have only one machine.
* I went through lots of frustration to get freeglut to work with GHCi.
* I am not willing to risk breaking my current installation.
* I do not know of any easy way to preserve my current installation
and still start over from scratch to test my instuctions.
</RANT>
If my instructions are wrong, then please let me know, and I might
attempt to fix it. Although I just don't understand why freeglut, the
Haskell GLUT library, and GHCi won't work together in the first place.
Here's what I would have to do if I were starting from scratch:
7-Zip
http://www.7-zip.org/
This is an open source file archiver for Windows that can handle
*.gz and *.bz2 files. Download the Windows version and install it.
GHC 6.6.1
http://haskell.org/ghc/download_ghc_661.html#windows
This is the version of GHC that I'm using. Download and install it.
MinGW/MSYS
Download all three files, then install them in the order I have
listed them. Note: MinGW and MSYS need to "live" in different
directories.
http://sourceforge.net/project/showfiles.php?group_id=2435
Automated MinGW installer MinGW-5.1.3.exe
** When you run the installer, it will download several more
files for you.
MSYS: Minimal System MSYS-1.0.10.exe
http://sourceforge.net/project/showfiles.php?group_id=2435&package_id=67879
MSYS Supplementary Tools msysDTK-1.0.1.exe
** Scroll down to find "Current Release: msysDTK-1.0.1" and
expand this tab. Select "msysDTK-1.0.1.exe"
zlib-1.2.3
http://www.zlib.net/
The links for "zlib source code" are about halfway down the page.
After downloading, the process (IIRC) is
1. Unzip the source code.
2. Start MSYS and cd to the source-code directory.
3. Execute "./configure"
4. Execute "make"
5. Execute "make install"
I don't remember having any problems with zlib.
cURL-7.16.4
http://curl.haxx.se/download.html
Note: It appears that cURL just had a minor revision on Sept 13. I
guess you can just try the latest version and see of things work.
IIRC, the process is exactly the same as the zlib install process,
and I didn't have any problems here either.
darcs-1.0.9
http://darcs.net/darcs-1.0.9.tar.gz
Dependencies that you'll need: cURL and zlib :-)
Your darcs installation will have some holes, for example it won't
support SSL because we didn't satisfy the SSL dependency.
IIRC, the process here is
1. Unzip the source code.
2. Start MSYS and cd to the source-code directory.
3. Execute "autoconf"
4. Execute "./configure"
5. Execute "make"
6. Execute "make install"
Freeglut-2.4.0
http://freeglut.sourceforge.net/index.php#download
Here's where the hackery starts.
1. Download the Freeglut source code and unzip it.
2. Start MSYS and cd to the source-code directory.
3. Execute "./configure"
4. Download this custom makefile and put in in the "./src" directory.
http://hpaste.org/2841
5. Download this custom def file and put in in the "./src" directory.
http://hpaste.org/2842
6. Cd to the "./src" directory and then execute "make".
7. Copy the "freeglut.dll" to GHC's bin directory (ghc-6.6.1/bin).
8. Copy the *.h files from "freeglut-2.4.0/include/GL"
to "ghc-6.6.1/include/mingw/GL".
Note that "glut.h" will be overwritten.
GLUT-2.1.1
You need to use darcs to download GLUT-2.1.1.
1. Start MSYS, create a directory for the GLUT source code,
and cd to it.
2. Execute "darcs get http://darcs.haskell.org/libraries/GLUT/";
and wait a while.
3. Cd to your new source directory.
4. Execute "autoreconf" and wait a while.
5. Modify "GLUT.cabal" as follows:
Locate the line start starts with "build-depends:" and remove
the dependencies "array" and "containers"
5. Execute "runghc Setup.hs configure" and wait.
6. Modify "GLUT-2.1.1/Graphics/UI/GLUT/Extensions.hs" as follows:
Look at the last two lines:
foreign import ccall unsafe "hs_GLUT_getProcAddress" hs_GLUT_getProcAddress
:: CString -> IO (FunPtr a)
Change "hs_GLUT_getProcAddress" to "glutGetProcAddress"
7. Modify "GLUT-2.1.1/cbits/HsGLUT.c" as follows:
Look for "void* hs_GLUT_getProcAddress(char *procName)" and
remove the whole function.
8. Execute "runghc Setup.hs build" and wait.
9. Execute "ghc-pkc unregister GLUT". This unregisters the existing
GLUT haskell library. Also, search through GHC's directories,
locate any glut library files (*.a, *.o, *.hi) that are in there
and remove them. You are deleting the existing GLUT that came
with GHC 6.6.1 in order to replace it with Freeglut.
10. Execute "runghc Setup.hs install".
11. In GHC's directory, there is a file named "package.conf". This
file contains one extremely long line. You need to find an
editor that will let you insert some text into this line without
introducing any line breaks. Emacs can do this.
You need to locate the text << pkgName = "GLUT" >> and then you
need to locate << hsLibraries = ["HSGLUT-2.1.1"] >> to the right
of there. The very next thing to the right of "hsLibraries"
should be << extraLibraries = [] >>. You need to change it to
<< extraLibraries = ["freeglut"] >>.
12. At this point, you should be able to start GHCi, load an example
that depends on freeglut, and run it from GHCi, without getting
any crashes or weird errors.
13. If you want to /compile/ with GHCi, then you'll need to copy the
freeglut.dll file into the same directory as your newly-compiled
program.exe file. I haven't tried static linking yet; that
would require recompiling freeglut as a static library instead
of a DLL.
Good Luck!
-- Ron
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