f68d811d9b
- gcc(1) fails to build usr.bin/dtc - lack of WITH_GNUCXX=1 causes cc1plus(1) calls to fail - u-boot fails to build with clang (hard-coded gcc(1) calls) Implement the proper incantation of WITH_/WITHOUT_ knobs to get arm snapshot builds working again. Since the cc(1) binary is no longer expected to be clang(1), remove the chroot(8) post-install cc(1) overwrite. MFC After: 3 days X-MFC-With: r264518,r264697,r264698 Tested on: stable/10@r264677 RPI-B Sponsored by: The FreeBSD Foundation