Thanks very much, that worked.
The updated command line is:
echo 'static void *foo; int main() { foo = (void *)glGetIntegerv; }' | g++ -xc++ - -I/usr/X11R6/include -includeGL/gl.h -L/usr/X11R6/lib -lGL -Wl,-dylib_file,/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
Abe
On Oct 29, 2007, at 4:06 AM, Martin Costabel wrote: Abe Stephens wrote: Hi, I'm encountering a linking problem whenever I attempt to link to X11's libGL in Leopard. Here is a concise example:
echo 'static void *foo; int main() { foo = (void *)glGetIntegerv; }' | g++ -xc++ - -I/usr/X11R6/include -includeGL/gl.h -L/usr/X11R6/lib -lGL
ld: cycle in dylib re-exports with /usr/X11R6/lib/libGL.dylib
collect2: ld returned 1 exit status
Does anyone have some advice on how to fix this?
This is a new feature (AKA bug) in /usr/bin/ld, coupled with the fact that Apple rather stupidly chose the same name "libGL.dylib" for two linked but different libraries in /usr/X11/lib and in the OpenGL framework. A fix is described here: < http://wiki.finkproject.org/index.php/Fink:Packaging:Preparing_for_10.5#OpenGL_Bug> Please file a bug on bugreport.apple.com. -- Martin
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