Re: [Freeglut-developer] cannot link freeglut.lib using cygwin

[Martin P. <li...@ma...>]

Hi Steve,

Yes, if it provides its own GLUT headers then that would likely be the 
problem. The freeglut library uses stdcall calling convention without 
decorated names, but it sounds like the headers you have are declaring 
them with a different calling convention (i.e. cdecl).

The freeglut import library should be used with the freeglut headers. Is 
there a way you can force this, i.e. by changing the order of your 
include paths so that the freeglut include directory is searched before 
other directories?

Regards,
Martin

On 27/04/2012 23:34, Stephen Jeffrey wrote:
> Hi Martin,
>
> The problem appears to be due to some difference between the your 
> header files and those distributed with the CUDA library.  Below I 
> have shown the output of various tests: (i) object code compiled using 
> the header files provided by Martin and also CUDA; (ii) using C code 
> compared to C++; and (iii) contents of library provided by Martin and 
> also CUDA. If I compile and link using your header file and 
> library, the function names are mangled in both my object code and the 
> glut library. In this case everything works i.e the code links and can 
> be executed. Not sure why the CUDA supplied glut is different.
>
> cheers
> steve
>
> test_CUDA.obj (C code using glut header files provided with CUDA)
> ------------
> 00000000 N .debug$S
> 00000000 i .drectve
> 00000000 t .text
> 00aa766f a @comp.id
> 00000001 a @feat.00
>          U _glutInit
> 00000000 T _my_function
>
> test_CUDA.cc (C++ code using glut header files provided with CUDA)
> ------------
> 00000000 N .debug$S
> 00000000 i .drectve
> 00000000 t .text
> 00000000 T ?my_function@@YAXHPAPAD@Z
> 00ab766f a @comp.id
> 00000001 a @feat.00
>          U _glutInit
>
> test_Martin.c (C code using glut header files provided by Martin)
> -------------
> 00000000 N .debug$S
> 00000000 i .drectve
> 00000000 t .text
> 00aa766f a @comp.id
> 00000001 a @feat.00
>          U __imp____glutInitWithExit@12
>          U _exit
> 00000020 t _glutInit_ATEXIT_HACK@8
> 00000000 T _my_function
>
> test_Martin.cc  (C++ code using glut header files provided by Martin)
> --------------
> 00000000 N .debug$S
> 00000000 i .drectve
> 00000000 t .text
> 00000000 T ?my_function@@YAXHPAPAD@Z
> 00ab766f a @comp.id
> 00000001 a @feat.00
>          U __imp____glutInitWithExit@12
>          U _exit
> 00000020 t _glutInit_ATEXIT_HACK@8
>
> CUDA freeglut.lib
> -----------------
> 00000000 T ___glutInitWithExit@12
> 00000000 I __imp____glutInitWithExit@12
> 00000000 I __imp__glutInit@8
> 00000000 T _glutInit@8
>
> Martin's freeglut.lib
> ---------------------
> 00000000 T ___glutInitWithExit@12
> 00000000 I __imp____glutInitWithExit@12
> 00000000 I __imp__glutInit@8
> 00000000 T _glutInit@8