The pkgsrc framework automatically sets the --host option (among other things) on configure, which causes ac_tool_prefix to be set to something like x86_64-sun-solaris2.11. The problem is that in this case (and others), there is no x86_64-sun-solaris2.11-freetype-config, only freetype-config. That causes a lot of dependencies to be left unfound, which isn’t ideal. I notice that the check for gcc falls back to gcc, so it’s possible there’s a bug in autoconf itself.
Would anyone care to offer an opinion as to the proper solution to this problem? I could create a bunch of symlinks, but that doesn’t seem like the best way to solve this (though it might be the quickest).