Need new confstr variables

[Garrett D'Amore]

The following variables are needed, along with support in getconf, and macros in unistd.h:

_CS_POSIX_V7_ILP32_OFF32_CFLAGS _CS_POSIX_V7_ILP32_OFF32_LDFLAGS _CS_POSIX_V7_ILP32_OFF32_LIBS _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS _CS_POSIX_V7_ILP32_OFFBIG_LIBS _CS_POSIX_V7_LP64_OFF64_CFLAGS _CS_POSIX_V7_LP64_OFF64_LDFLAGS _CS_POSIX_V7_LP64_OFF64_LIBS _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_LIBS _CS_POSIX_V7_THREADS_CFLAGS _CS_POSIX_V7_THREADS_LDFLAGS _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS

[Garrett D'Amore]

fixes #92 Need new confstr variables fixes #45 Clean up standards(5), etc, eliminate legacy standards

→ <<cset ce6d82876658>>