If $BUILDDIR is $SRCDIR/build and dup-src is used, don't copy "build"
If $BUILDDIR is $SRCDIR/build and dup-src is used, don't copy "build"

Also, skip any '.git' directory.

dabrahams/0compile,0install/0compile,gfxmonk/0compile,0install/0compile,dabrahams/0compile,0install/0compile,timbertson/0compile,gfxmonk/0compile,timbertson/0compile