X-Recipient: archive-cygwin AT delorie DOT com X-Spam-Check-By: sourceware.org From: "Phan, Linh H" To: "cygwin AT cygwin DOT com" Date: Tue, 9 Dec 2008 11:07:16 -0800 Subject: RE: OpenGL-1.1.0 link problem (glXMakeCurrent undefined symbols) Message-ID: <79D001DEDB0DEC47A247B110F3E866820A0DF25C@ALTPHYEMBEVSP30.RES.AD.JPL> References: In-Reply-To: Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 X-Source-IP: ums-smtp.jpl.nasa.gov [128.149.137.72] X-Source-Sender: linh DOT h DOT phan AT jpl DOT nasa DOT gov X-AUTH: Authorized X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id mB9J8lWg014888 Hi Andre, > Either you follow the Win32 road ... > Or you follow the X server road. I have been following the X server road (libGL-devel, libGL1, libGLU-devel, libGLU1 and that has been working fine for me) but I guess those are Mesa libraries which does not benefit from hardware acceleration, so when I read your opengl announcement: > These programs can display through the native Windows interface (Win32) > and benefit from hardware and driver acceleration. I wanted the benefit from hardware acceleration, even though I don't care for the Windows interface. Is it possible for me to not use the Windows interface but benefit from the hardware acceleration? Thank you Andre, Linh -----Original Message----- From: cygwin-owner AT cygwin DOT com [mailto:cygwin-owner AT cygwin DOT com] On Behalf Of André Bleau Sent: Tuesday, December 09, 2008 6:06 AM To: cygwin AT cygwin DOT com Subject: Re: OpenGL-1.1.0 link problem (glXMakeCurrent undefined symbols) "Phan, Linh H" wrote: > Hi, Hi Linh, > I'm trying to port OpenInventor code and using the new opengl-1.1.0 and I am getting > undefined _glXMakeCurrent symbols: > /usr/bin/CC -g Main.o ClassDef.o Man.o Reader.o Writer.o BuildIssues.o -lInventor -lstdc++ > -L/usr/X11R6/lib -L/usr/local/lib -limage -ljpeg -liconv -lFL -lfreetype > -lglu32 -lopengl32 -lXm -lXt -lXext -lXi -lX11 -lm -o ivman > /usr/local/lib/libInventor.a(So.o): In function `_ZN19SoOffscreenRendererD2Ev': > /usr/local/src/inventor2/lib/database/src/so/SoOffscreenRenderer.c++:173: undefined reference to > `_glXDestroyGLXPixmap' > /usr/local/src/inventor2/lib/database/src/so/SoOffscreenRenderer.c++:174: undefined reference to > `_glXDestroyContext' > /usr/local/src/inventor2/lib/database/src/so/SoOffscreenRenderer.c++:755: undefined reference to > `_glXMakeCurrent' > ... > I could see it in: > [phan AT phan-xp ...inventor2/lib]$ nm /usr/X11R6/lib/libGL-1.dll.a |grep glXMakeCurrent > 00000000 I __imp__glXMakeCurrentReadSGI > 00000000 T _glXMakeCurrentReadSGI > 00000000 I __imp__glXMakeCurrent > 00000000 T _glXMakeCurrent > What library in the new opengl-1.1.0 can I used to fix this problem? > Thank you, > Linh > Yeurk! The problem here is that you are trying to mix to incompatible things: 1- libraries from the w32api package (-lglu32 -lopengl32) which are about displaying openGL graphics directly through a native Windows interface (Win32) without any X server; 2- some other librairies (-lX...) that are about displaying through an X server. Than cannot work. You must make up your mind: Either you follow the Win32 road and you move your discussion to cygwin at cygwin dot com (as Yaakov suggested). Or you follow the X server road. As OpenInventor is some SGI thing, it is probably the best choice. In that case, you should update all your X11-related packages (-L/usr/X11R6/lib is related to the old version). In particular, you will need the following packages: libGL-devel, libGL1, libGLU-devel, libGLU1, which are about displaying openGL graphics through an X server. In that case, keep the discussion at cygwin-xfree at cygwin dot com. - André Bleau, Cygwin's volunteer OpenGL package maintainer. Please direct any question or comment about the OpenGL package to cygwin at cygwin dot com _________________________________________________________________ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/