graphics/cairo libtool problem on 4.X

[Joseph Koshy]

The problem is that graphics/cairo installs a ".la" file
with the following dependency line:

 $ uname -a
 FreeBSD orthanc 4.11-STABLE FreeBSD 4.11-STABLE #2: Wed Oct \
 5 06:05:52 IST 2005 \
 root at orthanc:/home/obj-stable/usr/src/sys/ORTHANC  i386

 $ grep dependency ${PREFIX}/lib/libcairo.la
 dependency_libs=' -pthread -L/usr/X11R6/lib -lXrender -lXext \
 -lX11 -L/usr/local/lib -lpng /usr/X11R6/lib/libfontconfig.la \
 /usr/local/lib/libexpat.la /usr/local/lib/libfreetype.la -lz \
 -lm'

Note the '-pthread' right in front.

This causes the build of DrScheme to fail under 4.X.  Drscheme
comes with its own libtool script.

 $ ...
 /home/ports/lang/drscheme/work/plt/src/lt/libtool --mode=link \
 c++ -rpath /home/tmp/local/lib -L/usr/X11R6/lib   -o mred \
 mrmain.lo ../mzscheme/libmzscheme.la ../mzscheme/libmzgc.la \
 libmred.la -lSM -lICE -lXaw -lXmu -lXt -lX11 -lXext  -lGL \
 -lXrender -Wl,--rpath -Wl,/usr/local/lib -L/usr/X11R6/lib \
 -L/usr/local/lib -lXft -lfreetype -lz -lXrender -lXext -lX11 \
 -lfontconfig   -L/usr/local/lib -lcairo   -lm  -rdynamic
 libtool: link: cannot find the library `'

Looking inside the script, it appears to be treating '-pthread'
to be a library name and failing.

Is there a work-around for this?

--
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