hi folks.
in a test that didn't change the contents of the tree, but did change the timestamps, we're hitting cases where gengtype-lex.c is newer than gengtype-lex.l, and the build tries to write the updated .c file back into the (possibly r/o) source tree. to work around this and to follow our general process for these files, i've deleted the .c file so we always build it now. this may cause failures with update builds as the old source is missing and .depend will reference it. clean the objdirs if you see this, it should clear up. .mrg.
