Failed building kdebase-workspace-4.5.5_1 cannot find the library liblzma.la

[Troy]

>> Anytime I've ever upgraded the system, I built the kernel and the world.   I have 419 .la files in /usr/local/lib. I don't think I want to try that idea.  Are you saying if I rebuilt the kernel/world it would not fix this properly?
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> Rebuilding src/ will have absolutely no effect, since it's not the problem.
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> Somewhere along the lines (by virtue of the reference to the lzma.la file), archivers/xz was installed on the system.  Then src/ was upgraded to a point in time where xz was in the base system, rendering the port as IGNORE.
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> At a rough guess, a ports upgrade after that fact found the now-defunct archivers/xz and most likely removed it WITHOUT also rebuilding all ports that depend on liblzma.so -- resulting in a system where some ports are using the src/ library, some are _perhaps_ using the old one from the port (check /usr/local/lib/compat/pkg -- it may be in there), but worse, a number of installed ports have references to liblzma.la in their own .la files.
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> What you could try doing is grepping for liblzma.la in all of those .la files, making a note of which ones are affected, then use pkg_info -W<name-of-file>  to determine which ports they belong to and forcibly rebuild them.
>
> -aDe

That worked. It was ImageMagick-6.6.7.10 that was the culprit.  Once I 
re-built it, I was able to rebuild kdebase-workspace-4.5.5._1