VMS POSIX (not to be confused with native VMS...)
STDC_HEADERS	1
RANDOM_MISSING	1
STRCASE_MISSING	1
NO_TOKEN_PASTING 1
MAKE_ALLOCA_C
MAKE_VMS-Posix
MAKE_CC
#define DEFAULT_FILETYPE ".awk"
#define getopt gnu_getopt
#define opterr gnu_opterr
#define regcomp gnu_regcomp
#define regexec gnu_regexec
#define regfree gnu_regfree
#define regerror gnu_regerror