tiff doesn't build on leopard

[Michael Staggs]

I'm trying to build wine, but can't get past tiff.  It fails with the  
following:

libtool: link: creating tiffsplit
if /usr/bin/gcc-4.0 -DHAVE_CONFIG_H -I. -I. -I../libtiff -I../libtiff - 
I../libtiff  -I/opt/local/include -I/opt/local/include -I/opt/local/ 
include -O2 -Wall -W   -O2 -Wall -W -MT tiffgt-tiffgt.o -MD -MP -MF  
".deps/tiffgt-tiffgt.Tpo" -c -o tiffgt-tiffgt.o `test -f 'tiffgt.c' ||  
echo './'`tiffgt.c; \
	then mv -f ".deps/tiffgt-tiffgt.Tpo" ".deps/tiffgt-tiffgt.Po"; else  
rm -f ".deps/tiffgt-tiffgt.Tpo"; exit 1; fi
tiffgt.c: In function 'raster_keys':
tiffgt.c:303: warning: unused parameter 'x'
tiffgt.c:303: warning: unused parameter 'y'
tiffgt.c: In function 'raster_special':
tiffgt.c:348: warning: unused parameter 'x'
tiffgt.c:348: warning: unused parameter 'y'
/bin/sh ../libtool --tag=CC --mode=link /usr/bin/gcc-4.0  -O2 -Wall - 
W  -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -o tiffgt   
tiffgt-tiffgt.o ../libtiff/libtiff.la ../port/libport.la -L/usr/X11/ 
lib -framework GLUT -lobjc -framework OpenGL -ljpeg -lz -lc
libtool: link: /usr/bin/gcc-4.0 -O2 -Wall -W -o .libs/tiffgt tiffgt- 
tiffgt.o  -L/opt/local/lib ../libtiff/.libs/libtiff.dylib ../ 
port/.libs/libport.a -L/usr/X11/lib -framework GLUT -lobjc -framework  
OpenGL /opt/local/lib/libjpeg.dylib -lz -lc
ld: cycle in dylib re-exports with /usr/X11/lib/libGL.dylib
collect2: ld returned 1 exit status
make[1]: *** [tiffgt] Error 1
make: *** [all-recursive] Error 1

Warning: the following items did not execute (for tiff):  
org.macports.activate org.macports.build org.macports.destroot  
org.macports.install
Error: Status 1 encountered during processing.