Sign in to follow this  

OpenGL X11 app

This topic is 4201 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

I've struggled a lot over the last few days trying to build glxgears.c and at this point I'd just like to know if people out there have some good documentation on getting an X11 OpenGL context working. # gcc -I/usr/X11R6/include -L/usr/X11R6/lib glxgears.c glxgears.c:501:2: warning: no newline at end of file /var/tmp//ccuhcfJ3.o(.text+0x74): In function `gear': : undefined reference to `glShadeModel' /var/tmp//ccuhcfJ3.o(.text+0x91): In function `gear': : undefined reference to `glNormal3f' /var/tmp//ccuhcfJ3.o(.text+0x9e): In function `gear': : undefined reference to `glBegin' /var/tmp//ccuhcfJ3.o(.text+0xf5): In function `gear': : undefined reference to `sin' /var/tmp//ccuhcfJ3.o(.text+0x11a): In function `gear': : undefined reference to `cos' /var/tmp//ccuhcfJ3.o(.text+0x12c): In function `gear': : undefined reference to `glVertex3f' /var/tmp//ccuhcfJ3.o(.text+0x159): In function `gear': : undefined reference to `sin' /var/tmp//ccuhcfJ3.o(.text+0x17e): In function `gear': : undefined reference to `cos' ... (this keeps going for some time) ... /var/tmp//ccuhcfJ3.o(.text+0x1bdb): In function `main': : undefined reference to `XCloseDisplay' Exit 1

Share this post


Link to post
Share on other sites
Guest Anonymous Poster
I did get fewer errors this time. I'll post the glxgears source if you think it's a problem with the code I downloaded.

gcc -lX11 -lGL -lm glxgears.c
glxgears.c:36:22: X11/Xlib.h: No such file or directory
glxgears.c:37:24: X11/keysym.h: No such file or directory
glxgears.c:38:19: GL/gl.h: No such file or directory
glxgears.c:39:20: GL/glx.h: No such file or directory
glxgears.c:83: error: syntax error before "view_rotx"
glxgears.c:83: warning: data definition has no type or storage class
glxgears.c:84: error: syntax error before "gear1"
glxgears.c:84: warning: data definition has no type or storage class
glxgears.c:85: error: syntax error before "angle"
glxgears.c:85: warning: data definition has no type or storage class
glxgears.c:100: error: syntax error before "inner_radius"
glxgears.c: In function `gear':
glxgears.c:103: error: syntax error before "i"
glxgears.c:108: error: `r0' undeclared (first use in this function)
glxgears.c:108: error: (Each undeclared identifier is reported only once
glxgears.c:108: error: for each function it appears in.)
glxgears.c:108: error: `inner_radius' undeclared (first use in this function)
glxgears.c:109: error: `r1' undeclared (first use in this function)
glxgears.c:109: error: `outer_radius' undeclared (first use in this function)
glxgears.c:109: error: `tooth_depth' undeclared (first use in this function)
glxgears.c:110: error: `r2' undeclared (first use in this function)
glxgears.c:112: error: `da' undeclared (first use in this function)
glxgears.c:112: error: `teeth' undeclared (first use in this function)
glxgears.c:114: error: `GL_FLAT' undeclared (first use in this function)
glxgears.c:119: error: `GL_QUAD_STRIP' undeclared (first use in this function)
glxgears.c:120: error: `i' undeclared (first use in this function)
glxgears.c:122: error: `width' undeclared (first use in this function)
glxgears.c:133: error: `GL_QUADS' undeclared (first use in this function)
glxgears.c:185: error: `u' undeclared (first use in this function)
glxgears.c:186: error: `v' undeclared (first use in this function)
glxgears.c:187: error: `len' undeclared (first use in this function)
glxgears.c:213: error: `GL_SMOOTH' undeclared (first use in this function)
glxgears.c: In function `draw':
glxgears.c:230: error: `GL_COLOR_BUFFER_BIT' undeclared (first use in this function)
glxgears.c:230: error: `GL_DEPTH_BUFFER_BIT' undeclared (first use in this function)
glxgears.c: In function `reshape':
glxgears.c:263: error: syntax error before "h"
glxgears.c:265: error: `GLint' undeclared (first use in this function)
glxgears.c:265: error: syntax error before "width"
glxgears.c:266: error: `GL_PROJECTION' undeclared (first use in this function)
glxgears.c:268: error: `h' undeclared (first use in this function)
glxgears.c:269: error: `GL_MODELVIEW' undeclared (first use in this function)
glxgears.c: In function `init':
glxgears.c:278: error: syntax error before "pos"
glxgears.c: At top level:
glxgears.c:279: error: syntax error before "red"
glxgears.c:279: warning: data definition has no type or storage class
glxgears.c:280: error: syntax error before "green"
glxgears.c:280: warning: data definition has no type or storage class
glxgears.c:281: error: syntax error before "blue"
glxgears.c:281: warning: data definition has no type or storage class
glxgears.c:283: warning: parameter names (without types) in function declaration
glxgears.c:283: warning: data definition has no type or storage class
glxgears.c:284: warning: parameter names (without types) in function declaration
glxgears.c:284: warning: data definition has no type or storage class
glxgears.c:285: warning: parameter names (without types) in function declaration
glxgears.c:285: warning: data definition has no type or storage class
glxgears.c:286: warning: parameter names (without types) in function declaration
glxgears.c:286: warning: data definition has no type or storage class
glxgears.c:287: warning: parameter names (without types) in function declaration
glxgears.c:287: warning: data definition has no type or storage class
glxgears.c:290: error: initializer element is not constant
glxgears.c:290: warning: data definition has no type or storage class
glxgears.c:291: warning: parameter names (without types) in function declaration
glxgears.c:291: warning: data definition has no type or storage class
glxgears.c:292: warning: parameter names (without types) in function declaration
glxgears.c:292: warning: data definition has no type or storage class
glxgears.c:293: error: syntax error before numeric constant
glxgears.c:294: warning: data definition has no type or storage class
glxgears.c:296: error: initializer element is not constant
glxgears.c:296: warning: data definition has no type or storage class
glxgears.c:297: warning: parameter names (without types) in function declaration
glxgears.c:297: warning: data definition has no type or storage class
glxgears.c:298: warning: parameter names (without types) in function declaration
glxgears.c:298: warning: data definition has no type or storage class
glxgears.c:299: error: syntax error before numeric constant
glxgears.c:300: warning: data definition has no type or storage class
glxgears.c:302: error: initializer element is not constant
glxgears.c:302: warning: data definition has no type or storage class
glxgears.c:303: warning: parameter names (without types) in function declaration
glxgears.c:303: warning: data definition has no type or storage class
glxgears.c:304: warning: parameter names (without types) in function declaration
glxgears.c:304: warning: data definition has no type or storage class
glxgears.c:305: error: syntax error before numeric constant
glxgears.c:306: warning: data definition has no type or storage class
glxgears.c:308: warning: parameter names (without types) in function declaration
glxgears.c:308: warning: data definition has no type or storage class
glxgears.c:309: error: syntax error before '}' token
Exit 1

Share this post


Link to post
Share on other sites
gcc -I/usr/X11R6/include -lX11 -lGL -lm glxgears.c
glxgears.c:501:2: warning: no newline at end of file
/usr/bin/ld: cannot find -lX11
Exit 1

Share this post


Link to post
Share on other sites
This got me farther, but now I think I have another problem on my hands. I take it I need libm.so.3?

gcc -I/usr/X11R6/include -L/usr/X11R6/lib -lGL -lm glxgears.c
glxgears.c:501:2: warning: no newline at end of file
/usr/bin/ld: warning: libm.so.3, needed by /usr/X11R6/lib/libGL.so, not found (t ry using -rpath or -rpath-link)

Share this post


Link to post
Share on other sites
Ok it looks like it works, I just need to fix my compat5x libs I think. Funny thing is that the stock glxgears works fine but mine complains about libs. oh well. Running under FreeBSD 6.1 with an NVidia card nvidia-driver-1.0.8178

Share this post


Link to post
Share on other sites
Sign in to follow this