X-pop3-spooler: POP3MAIL 2.1.0 b 3 961213 -bs- Delivered-To: pcg AT goof DOT com Message-ID: <19980129153001.29794@cerebro.laendle> Date: Thu, 29 Jan 1998 15:30:01 +0100 From: Marc Lehmann To: "Kerber, Ulrich" Cc: beastium Subject: Re: pgcc compiler/linker problems References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.88 In-Reply-To: ; from Kerber, Ulrich on Thu, Jan 29, 1998 at 08:37:31AM +0100 X-Operating-System: Linux version 2.1.82 (root AT cerebro) (gcc version pgcc-2.91.05 980122 (gcc-2.8.0 release)) Status: RO Content-Length: 2089 Lines: 49 On Thu, Jan 29, 1998 at 08:37:31AM +0100, Kerber, Ulrich wrote: > Hi there, > while reading about a pentium optimized compiler, I decided to download > and to use this nice > featured compiler! > After successfully installing the several tar-files, I started a > test-compiling: > There were no problems while creating the objectcode in generell but if > linking starts, I receive the following error messages: > > (Error-Messages while linking (shared) libraries) > > gcc main.o -o t1 -L/usr/local/qt-1.31/lib -lqt -lm linking c++ programs with gcc (pgcc) is tricky (i.e. don't try it), link your c++ programs with g++ (pg++) instead. > gcc -O6 -mcpu=pentium -o SceneViewer SceneViewer.o SoSceneViewer.o > SvManipList.o > -L${OIVHOME}/lib -L${OGLHOME}/lib libwidget.a -lInventorXt -lInventor > -limage -lMesaGLU -lMesaGL > -L/usr/X11R6/lib -lXm -lXt -lXext -lX11 -lm -ldl > SoSceneViewer.o: In function `SoSceneViewer type_info function': > SoSceneViewer.o(.text+0x8af0): undefined reference to `SoXtComponent > type_info function' > SoSceneViewer.o(.text+0x8af6): undefined reference to `SoXtComponent > type_info node' you have compiled a program with rtti (a c++ language feature), while you haven't compiled a library with it.. either compile your libraries, or compile you programs with "-fno-rtti" to disable rtti. in gcc-2.7.2, rtti was disabled by default (due to some problems), so all files compiled with g++-2.7.2 miss type_info nodes (which 2.7.2 didn't create anyway). pgcc (egcs, gcc-2.8.0) does enable rtti by default (as well as exceptions). > What does it mean; what to do?? please let me know wether this solves your problems! -----==- | ----==-- _ | ---==---(_)__ __ ____ __ Marc Lehmann +-- --==---/ / _ \/ // /\ \/ / pcg AT goof DOT com |e| -=====/_/_//_/\_,_/ /_/\_\ --+ The choice of a GNU generation | |