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From: "Sisyphus" <sisyphus1 AT optusnet DOT com DOT au>
To: "cygwin" <cygwin AT cygwin DOT com>
Subject: resolving _glGetString AT 4 by linking to _glGetString
Date: Sun, 11 Jul 2010 13:44:10 +1000
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Hi,

When building the perl extension OpenGL-0.62 on Cygwin-1.7.5,  gcc-4.3.4 I 
get the warning:

Warning: resolving _glGetString AT 4 by linking to _glGetString
Use --enable-stdcall-fixup to disable these warnings
Use --disable-stdcall-fixup to disable these fixups

That's exactly what needs to be done, and everything goes fine.
On Cygwin-1.5.25,  gcc-3.4.4, however, running the same procedure I simply 
get the errors:

glversion.o:glversion.c:(.text+0xc5): undefined reference to 
`_glGetString AT 4'
glversion.o:glversion.c:(.text+0xd7): undefined reference to 
`_glGetString AT 4'
glversion.o:glversion.c:(.text+0xe9): undefined reference to 
`_glGetString AT 4'
glversion.o:glversion.c:(.text+0xfb): undefined reference to 
`_glGetString AT 4'

How do I get gcc-3.4.4 to apply those fixups that gcc-4.3.4 applied ?

The actual commands being run in order to build glversion are:

gcc -DWIN32 -DHAVE_FREEGLUT -c glversion.c
followed by
g++ -o glversion glversion.o -L../FreeGLUT -lfreeglut 
/cygdrive/c/WINDOWS/system32/opengl32.dll

I tried inserting '--enable-stdcall-fixup' into the second of those 
commands, but it didn't have any effect.

Cheers,
Rob







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