[Python-Dev] pyconfig.h macro usage (original) (raw)

Skip Montanaro skip at pobox.com
Wed Jan 7 18:27:53 EST 2004

After Zacks message about configure.in cruft, I zapped the SIZEOF_CHAR macro and noticed it was never used in any .c files. So that got me to thinking (dangerous, I know)... What about:

for macro in `egrep '#undef [_A-Z]' pyconfig.h.in \
              | awk '{print $2}' \
              | sort`
do
    echo -n "$macro:   "
    find . -name '*.[ch]' \
    | egrep -v pyconfig \
    | xargs egrep $macro \
    | wc -l
done \
| sort -n -k 2,2

Turns out there are quite a few macros defined in pyconfig.h that are unused:

HAVE_DUP2                       SIZEOF_FLOAT
HAVE_GETPID                     SIZEOF_UINTPTR_T
HAVE_LIBDL                      SIZEOF_WCHAR_T
HAVE_LIBDLD                     SYS_SELECT_WITH_SYS_TIME
HAVE_LIBIEEE                    TM_IN_SYS_TIME
HAVE_LIBRESOLV                  WITH_DL_DLD
HAVE_PTHREAD_INIT               WITH_DYLD
HAVE_STDARG_H                   WITH_LIBINTL
HAVE_STRDUP                     _FILE_OFFSET_BITS
HAVE_STRPTIME                   _LARGEFILE_SOURCE
HAVE_ST_BLOCKS                  _MINIX
HAVE_SYS_SOCKET_H               _NETBSD_SOURCE
HAVE_TERMIOS_H                  _OSF_SOURCE
HAVE_TIMEGM                     _POSIX_1_SOURCE
HAVE_TM_ZONE                    _POSIX_C_SOURCE
HAVE_TRUNCATE                   _POSIX_SOURCE
HAVE_UCS4_TCL                   _REENTRANT
RETSIGTYPE                      __BSD_VISIBLE
SIZEOF_DOUBLE                   __EXTENSIONS__

Any votes for getting rid of them?

Skip

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