[Mingw-users] GLUT Problem Solved

[Chris S. <csh...@qu...>]

Hi,

I've managed to fix the compile problem I was having with GLUT. I found 
the following email which suggests that there is a problem with the 
latest version of GLUT (3.7.6) and the libraries included with MinGW.

> I was mentioning earlier the oddity of having the glut libraries
> libglut.a, libglut32.a, but not the header glut.h, in the mingw package.
> I think it would be not only painless, but also really nice if you could
> just add the header to the package!
> 
> I was curious why I needed to do a certain hack on the latest glut.h
> (specifically, to remove some prototypes that the linker expects and
> dies when it doesn"t find them in libglut32.a).
> Eventually, I realized that libglut.a and libglut32.a currently supplied
> with mingw belong to an older version, i.e. 3.6 (latest stable) instead
> of 3.7.6 (late beta). That version works with mingw, without needing any
> patch.
> 
> So I suggest to include glut.h from glut-3.6:
>   http://www.opengl.org/developers/documentation/glut/
>   http://www.opengl.org/developers/documentation/glut/glutdlls36.zip
> into:
>   /mingw/include/GL/
> 
> 
> The nicest part is that it works unmodified with mingw, and even with
> cygwin if -DWIN32 is passed to the cygwin-gcc cmd line.
> 
> As a side note (related to the first _M_IX86 message in its thread),
> this is a version that does include <windows.h>, unlike the newer ones.
> At least it"s good that it *works*.
> 
> 
> My tests show that the executables run well with GLUT32.DLL from 3.6
> to 3.7.6. To test it yourself, you should find plenty of test programs.
> But if you are in a hurry, you can get a very basic one from here:
>   http://www.cs.toronto.edu/~cosmin/test/teapot.c
> In case you wonder about the cmd line:
>   gcc -oteapot teapot.c -lglut32 -lglu32 -lopengl32
> 
> 
> Best regards,
> Cosmin

Cheers,

Chris

Chris Share wrote:
> Thanks!
> 
> Just to be clear about this, what you're saying means the problem is 
> that libglut32.a does not "match" glut32.dll--is that correct?
> 
> Cheers,
> 
> Chris
> 
> Michael Gerdau wrote:
> 
>>> I tried the following:
>>>
>>> c:\programming\c++\g++> g++ Test.cpp -o Test.exe -lglut32
>>> C:\DOCUME~1\CHRIS~1.LAP\LOCALS~1\Temp/ccaecaaa.o(.text+0x11c):Test.cpp: 
>>> undefined reference to `__glutInitWithExit@12'
>>> C:\DOCUME~1\CHRIS~1.LAP\LOCALS~1\Temp/ccaecaaa.o(.text+0x13d):Test.cpp: 
>>> undefined reference to `__glutCreateWindowWithExit@8'
>>> C:\DOCUME~1\CHRIS~1.LAP\LOCALS~1\Temp/ccaecaaa.o(.text+0x15d):Test.cpp: 
>>> undefined reference to `__glutCreateMenuWithExit@8'
>>> collect2: ld returned 1 exit status
>>> Process g++ exited with code 1
>>>
>>> However the output was the same.
>>>
>>> Any other ideas?
>>
>>
>>
>> In your previous post you had the problem thet libglut32.a had not
>> been found by the linker. The above output shows that this problem
>> is solved by the change of name (-llibglut32 -> -lglut32).
>>
>> However now you get honest undefined references which in turn means
>> the library does not provide the functions you are using (from the
>> linker point of view).
>>
>> I don't know libglut32.a but I'd suspect either the corresponding
>> header use the wrong declarations or the (import?) library does
>> use the wrong naming (e.g. one too many leading '_', stdcall when
>> it shouldn't or whatever).
>>
>> Googleing for 'libglut32\.a' does provide this URL:
>> http://www.cygwin.com/ml/cygwin/1998-12/msg00530.html
>>
>> HTH, best,
>> Michael
> 
> 
> 
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