problem linking with glu and win32ada

problem linking with glu and win32ada

[Christian Gottschalk]

Hi,

I'm using the following:
GNAT GPL 2007-2
Windows 2000
win32ada

When with'ing win32.glu, I get a Linker error:
i:\progra~1\gnat\2007\lib\win32ada/libwin32ada.a(win32-glu.o):win32-glu.adb:(.text+0x7b):
undefined reference to `gluErrorString@4'

objdump tells me that there is indeed a call to gluErrorString in
libwin32ada. Just how do i get it to resolve the name? -glu32 is given
in the linker options for both my project and win32ada.

Ciao,
     Christian

Re: problem linking with glu and win32ada

[Gautier]

It looks like a pragma Import(C,...) that should be a pragma Import(Stdcall,...).
The better is to use the GL, GLU & GLUT bindings from GLOBE_3D there:
   http://www.mysunrise.ch/users/gdm/g3d.htm
You even don't need win32ada for that :-).
Gautier

Christian Gottschalk wrote:
> Hi,
> 
> I'm using the following:
> GNAT GPL 2007-2
> Windows 2000
> win32ada
> 
> When with'ing win32.glu, I get a Linker error:
> i:\progra~1\gnat\2007\lib\win32ada/libwin32ada.a(win32-glu.o):win32-glu.adb:(.text+0x7b): 
> 
> undefined reference to `gluErrorString@4'
> 
> objdump tells me that there is indeed a call to gluErrorString in
> libwin32ada. Just how do i get it to resolve the name? -glu32 is given
> in the linker options for both my project and win32ada.
> 
> Ciao,
>     Christian
______________________________________________________________
Gautier         -- http://www.mysunrise.ch/users/gdm/index.htm
Ada programming -- http://www.mysunrise.ch/users/gdm/gsoft.htm

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Re: problem linking with glu and win32ada

[Pascal Obry]

Gautier a �crit :
> It looks like a pragma Import(C,...) that should be a pragma 
> Import(Stdcall,...).

Nope otherwise the missing symbols won't have the @4 suffix.

Pascal.

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Re: problem linking with glu and win32ada

[Christian Gottschalk]

Also sprach Gautier:
> It looks like a pragma Import(C,...) that should be a pragma Import(Stdcall,...).

Well ... it is. Actually, copying the unit (and renaming it) works fine.
The problem appears only when using Win32.glu (and hence libwin32ada.a).

> The better is to use the GL, GLU & GLUT bindings from GLOBE_3D there:
>    http://www.mysunrise.ch/users/gdm/g3d.htm
> You even don't need win32ada for that :-).

I'll look into that, although it was rather thought as
Win32-API-excercise :)

Ciao,
     Christian

Re: problem linking with glu and win32ada

[Christian Gottschalk]

Update: This isn't limited to GLU. The problem occurs with other
packages where a function of the form whatever@42 (as reported by
objdump) is involved, e.g. oleauto and rpcndr, but not winbase.

This can't be right.

Ciao,
      Christian