Make disabling regenerating source files provided in Mesa distfiles that

require python/bison a configure flag instead of the previous way of
testing whether python was found (which shouldn't be the case in
xenocara even with ports packages installed).

This is required when timestamps change on files causing targets to be
invoked that will break if python and bison aren't available and found
in path by the configure script.

0 files changed, 0 insertions, 0 deletions