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Message-ID:	<3E3C279AF3F9D411BAA00002A529150E5009BD@S0-OTT-X10>
From:	"Mueller, Christof" <chmuelle AT NRCan DOT gc DOT ca>
To:	"'cygwin AT cygwin DOT com'" <cygwin AT cygwin DOT com>
Subject:	problem linking to opengl functions, VTK
Date:	Mon, 28 Jan 2002 15:08:04 -0500
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2653.19)

Hi,

I'm trying to compile VTK examples and seem to have trouble linking with
opengl.

here is what I think should be working, but didn't:

( g++ -v -g -O2 -o ./Cone.exe Cone.cxx -I/usr/opt/VTK/VTK/Graphics
-I/usr/opt/VTK/VTK/Filtering -I/usr/opt/VTK/VTK/Common -I/usr/opt/VTK/VTK
-I/usr/opt/VTK/VTK/Rendering -L/usr/opt/VTK/VTK/bin/ -lvtkGraphics
-lvtkFiltering -lvtkRendering -lvtkCommon -lopengl32 ) > & log

here is the first part of my log file:

Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/specs
gcc version 2.95.3-5 (cygwin special)
 /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/cpp0.exe -lang-c++ -v
-I/usr/opt/VTK/VTK/Graphics -I/usr/opt/VTK/VTK/Filtering
-I/usr/opt/VTK/VTK/Common -I/usr/opt/VTK/VTK -I/usr/opt/VTK/VTK/Rendering
-D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -D__cplusplus -D_X86_=1
-D_X86_=1 -Asystem(winnt) -D__EXCEPTIONS -D__OPTIMIZE__ -g -Acpu(i386)
-Amachine(i386) -Di386 -D__i386 -D__i386__ -Di686 -Dpentiumpro -D__i686
-D__i686__ -D__pentiumpro -D__pentiumpro__
-D__stdcall=__attribute__((__stdcall__))
-D__cdecl=__attribute__((__cdecl__)) -D_stdcall=__attribute__((__stdcall__))
-D_cdecl=__attribute__((__cdecl__)) -D__declspec(x)=__attribute__((x))
-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -isystem
/usr/local/include -idirafter /usr/include -idirafter /usr/include/w32api
-isystem /usr/include/g++-3 -isystem /usr/include/g++ Cone.cxx
/cygdrive/c/WINDOWS/TEMP/ccwPAh1I.ii
GNU CPP version 2.95.3-5 (cygwin special) (80386, BSD syntax)
#include "..." search starts here:
#include <...> search starts here:
 /usr/opt/VTK/VTK/Graphics
 /usr/opt/VTK/VTK/Filtering
 /usr/opt/VTK/VTK/Common
 /usr/opt/VTK/VTK
 /usr/opt/VTK/VTK/Rendering
 /usr/local/include
 /usr/include/g++-3
 /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/include
 /usr/include
 /usr/include/w32api
End of search list.
The following default directories have been omitted from the search path:
End of omitted list.
 /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/cc1plus.exe
/cygdrive/c/WINDOWS/TEMP/ccwPAh1I.ii -quiet -dumpbase Cone.cc -g -O2
-version -o /cygdrive/c/WINDOWS/TEMP/cchHXRaz.s
GNU C++ version 2.95.3-5 (cygwin special) (i686-pc-cygwin) compiled by GNU C
version 2.95.3-5 (cygwin special).
 
/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/../../../../i686-pc-cygwin/bin/as.e
xe -o /cygdrive/c/WINDOWS/TEMP/ccvpwH00.o
/cygdrive/c/WINDOWS/TEMP/cchHXRaz.s
 /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/collect2.exe -Bdynamic
--dll-search-prefix=cyg -o ./Cone.exe /usr/lib/crt0.o
-L/usr/opt/VTK/VTK/bin/ -L/usr/local/lib -L/usr/lib -L/usr/lib/w32api
-L/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5
/cygdrive/c/WINDOWS/TEMP/ccvpwH00.o -lvtkGraphics -lvtkFiltering
-lvtkRendering -lvtkCommon -lopengl32 -lstdc++ -lgcc -lcygwin -luser32
-lkernel32 -ladvapi32 -lshell32 -lgcc
/usr/opt/VTK/VTK/bin//libvtkRendering.a(vtkOpenGLActor.o): In function
`vtkOpenGLActor::Render(vtkRenderer *, vtkMapper *)':
/usr/opt/VTK/VTK/Rendering/vtkOpenGLActor.cxx:88: undefined reference to
`glGetIntegerv'
/usr/opt/VTK/VTK/Rendering/vtkOpenGLActor.cxx:95: undefined reference to
`glDepthMask'
/usr/opt/VTK/VTK/Rendering/vtkOpenGLActor.cxx:122: undefined reference to
`glMatrixMode'
/usr/opt/VTK/VTK/Rendering/vtkOpenGLActor.cxx:123: undefined reference to
`glPushMatrix'
/usr/opt/VTK/VTK/Rendering/vtkOpenGLActor.cxx:124: undefined reference to
`glMultMatrixd'


and when I look there I see [/usr/opt/VTK/VTK/Rendering/vtkOpenGLActor.cxx]:

	#include <math.h>


	#include "vtkOpenGLRenderer.h"
	#include "vtkOpenGLActor.h"
	#ifdef __APPLE__
	#include <OpenGL/gl.h>
	#else
	#include <GL/gl.h>
	#endif
	#include "vtkObjectFactory.h"

	#ifndef VTK_IMPLEMENT_MESA_CXX
	
//-------------------------------------------------------------------------
	vtkOpenGLActor* vtkOpenGLActor::New()
	{
	 ............

I know that there was quite some discussion going on about these opengl
linking problems, and I've read the /usr./doc/opengl stuff. I also went
through the mail archive, but everything I tried failed, duh.

I would really appreciate any help with this,

		Cheers,
						Christof








  
  


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