Building OpenGL from source
Carlo Florendo
list-subscriber@hq.astra.ph
Wed Jun 8 03:32:00 GMT 2005
Zieg, Mark wrote:
>However, trying to link against those spat out lots of undefined
>references:
>
> make[1]: Entering directory `/home/ziegm/opengl/teapot'
> g++ teapot.o -L/usr/X11R6/lib -lglut -lGLU -lGL -o teapot
> teapot.o:teapot.cpp:(.text+0xd2): undefined reference to
>`_glClearColor@16'
> teapot.o:teapot.cpp:(.text+0xe1): undefined reference to
>`_glShadeModel@4'
> teapot.o:teapot.cpp:(.text+0x11d): undefined reference to
>`_glMaterialfv@12'
> teapot.o:teapot.cpp:(.text+0x159): undefined reference to
>`_glLightfv@12'
> teapot.o:teapot.cpp:(.text+0x1fe): undefined reference to
>`_glEnable@4'
> teapot.o:teapot.cpp:(.text+0x27c): undefined reference to
>`_gluLookAt@72'
> ...etc
>
>
>
You don't need X11 to compile the app on cygwin, unless the app was
written for X11, in which case, you really have to link against the X11
libraries.
I guess that you need to link correctly with the w32api libraries. Try
these out:
g++ teapot.o /lib/w32api/libopengl32.a /lib/w32api/libglu32.a \
/lib/w32api/libgdi32.a -lm -o teapot
If you want the binary to be native windows (i.e. does not depend on
cygwin), you may want to try adding the -mno-cygwin option on your
invocation to g++.
HTH.
Best Regards,
Carlo
--
Carlo Florendo
Astra Philippines Inc.
www.astra.ph
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