Fix ftsynth.h include.  Fixes at least the Linux build.
Pass in paths to X11, fixes build on systems where it is installed
in non-standard locations.
Use check_compiler=yes on Darwin, fixes bootstrap with newer XCode that
includes gcc which is actually clang.
Fix qemu bug 1335444 aka PR pkg/48071.  Patches from Kirill Batuzov,
with minor changes to make them apply to 2.0.0.  Bump PKGREVISION.
Updated emulators/qemu to 2.0.0nb4.
Avoid "error: call of overloaded <func> is ambiguous".  Fixes SunOS.