# see: http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
# -Wall doesn't actually turn on all warnings, so add -Wextra
# but then plenty too many complaints by
-# -Wimplicit-fallthrough=3
-# too many warnings in pcre/study.c & pcre.c
# -Wmissing-field-initializers
# -Wsign-compare
# -Wtype-limits