make portability
PASS C99 syntax with -Wall -Wextra -Werror -Wformat=2 -pedantic
PASS GCC -fanalyzer for every production translation unit
PASS sh -n install.sh
PASS xmllint --nonet --noout smf/o6h-memory-guard.xml
NOTE tests/api-sketch are local declarations, not native illumos headers or ABI validation.
NOTE clang, clang-tidy, cppcheck, scan-build and shellcheck were not installed.