----- Original Message ----- From: "Igor Pechtchanski" <[EMAIL PROTECTED]> To: "Mikael Åsberg" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Wednesday, February 19, 2003 10:09 PM Subject: Re: MESA
> On Wed, 19 Feb 2003, Mikael Åsberg wrote: > > > ----- Original Message ----- > > From: "Igor Pechtchanski" <[EMAIL PROTECTED]> > > > > > On Wed, 19 Feb 2003, Mikael sberg wrote: > > > > > > > ----- Original Message ----- > > > > From: "Igor Pechtchanski" <[EMAIL PROTECTED]> > > > > > > > > > On Wed, 19 Feb 2003, Mikael sberg wrote: > > > > > > > > > > > ----- Original Message ----- > > > > > > From: "Igor Pechtchanski" <[EMAIL PROTECTED]> > > > > > > [snip] > > > > > > > > > > > > > Try "gcc -Wall -o test test.c -L/usr/local/lib -lGL -lGLU -lglut", > > > > > > > or something like that... > > > > > > > Igor > > > > > > > > > > > > Thanks for the quick reply, here's what I tried: > > > > > > $ gcc -Wall -o test test.c -L/usr/local/lib/GL -lGL -lGLU -lglut > > > > > ^^^ > > > > > > > > /usr/lib/gcc-lib/i686-pc-cygwin/3.2/../../../../i686-pc-cygwin/bin/ld: > > > > > > cannot find -lGL > > > > > > collect2: ld returned 1 exit status > > > > > > > > > > > > This is confusing to me, because I recalling reading that one should > > > > link > > > > > > to -lGL etc. Any ideas? > > > > > > > > > > It works better if, after a -L, you specify a directory that actually > > > > > contains the relevant libraries (such as /usr/local/lib). > > > > > Igor > > > > > > > > I just found that mistake, lol, and when I issued the following: > > > > $ gcc -Wall -o test test.c -L/usr/local/lib -lGL -lGLU -lglut > > > > > > > > I get a massive amount of linking errors: > > > > [snip] > > > > collect2: ld returned 1 exit status > > > > Very long, sorry =( > > > > > > You are most likely missing some X library (judging by the names of the > > > symbols). Make sure you installed all the libraries MESA/glut require. > > > Check the order of the '-l' flags, too -- it matters. You'll probably > > > find some useful info in a README that came with MESA or OpenGL. > > > Igor > > > > Someone using linux said I should try linking with these > > x-libraries: -lXi -lXmu -lm -lXext -lX11, so I issued: > > $ gcc -Wall -o test > > test.c -L/usr/local/lib -lGL -lGLU -lglut -L/usr/X11R6/lib -lXi > > -lXmu -lm -lXext -lX11 > > > > That yields a great number of errors (listed last). > > > > When I installed cygwin, I made sure I installed the X libraries. Maybe I am > > specifying the path wrong, or I should use other names, or I haven't > > installed what I need (if I haven't done that, I wouldn't know what more to > > install =(). > > > > Here are the errors: > > /usr/local/lib/libglut.a(glut_event.o)(.text+0xef7): In function `processEventsAndTimeouts': > > /home/Administrator/Mesa-5.0/src-glut/glut_event.c:388: undefined reference to `_glXWaitX' > > [snip] > > collect2: ld returned 1 exit status > > Looks like library order to me (I don't know OpenGL, so I wouldn't be able > to provide the exact gcc command that will work). Try using "nm" on the > three GL libraries, and find out which defines the missing symbols. Put > that one last. Repeat until linked successfully... :-) > At this point I probably should let the OpenGL maintainer take over, > anyway. Good luck. > Igor > -- > http://cs.nyu.edu/~pechtcha/ > |\ _,,,---,,_ [EMAIL PROTECTED] > ZZZzz /,`.-'`' -. ;-;;,_ [EMAIL PROTECTED] > |,4- ) )-,_. ,\ ( `'-' Igor Pechtchanski > '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! > > Oh, boy, virtual memory! Now I'm gonna make myself a really *big* RAMdisk! > -- /usr/games/fortune > > /usr/local/lib contains: libGL.a libGLU.a libOSMesa.a libglut.a libGL.la libGLU.la libOSMesa.la libglut.la The first undefined reference is: /usr/local/lib/libglut.a(glut_event.o)(.text+0xef7): In function `processEventsAndTimeouts': /home/Administrator/Mesa-5.0/src-glut/glut_event.c:388: undefined reference to ` _glXWaitX' so I tried: nm /usr/local/lib/libGL.a | grep _glXWaitX, and it is in libGL.a. So the ordering of the libraries is wrong? Tried changing, but haven't found somethint that works yet. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
