Mercurial > gnulib
changeset 3217:ede7fd2ace64
Remove my copy of AC_FUNC_MEMCMP, now that
the version in autoconf has been updated.
(jm_FUNC_MEMCMP): Adjust.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Fri, 16 Mar 2001 23:40:10 +0000 |
| parents | 503d135c2b59 |
| children | 9d9590786ca6 |
| files | m4/memcmp.m4 |
| diffstat | 1 files changed, 3 insertions(+), 42 deletions(-) [+] |
line wrap: on
line diff
--- a/m4/memcmp.m4 Fri Mar 16 17:01:17 2001 +0000 +++ b/m4/memcmp.m4 Fri Mar 16 23:40:10 2001 +0000 @@ -1,47 +1,8 @@ -#serial 5 - -dnl A replacement for autoconf's AC_FUNC_MEMCMP that detects -dnl the losing memcmp on some x86 Next systems. -AC_DEFUN(jm_AC_FUNC_MEMCMP, -[AC_CACHE_CHECK([for working memcmp], jm_cv_func_memcmp_working, -[AC_TRY_RUN( -[int -main () -{ - /* Some versions of memcmp are not 8-bit clean. */ - char c0 = 0x40, c1 = 0x80, c2 = 0x81; - if (memcmp(&c0, &c2, 1) >= 0 || memcmp(&c1, &c2, 1) >= 0) - exit (1); - - /* The Next x86 OpenStep bug shows up only when comparing 16 bytes - or more and with at least one buffer not starting on a 4-byte boundary. - William Lewis provided this test program. */ - { - char foo[21]; - char bar[21]; - int i; - for (i = 0; i < 4; i++) - { - char *a = foo + i; - char *b = bar + i; - strcpy (a, "--------01111111"); - strcpy (b, "--------10000000"); - if (memcmp (a, b, 16) >= 0) - exit (1); - } - exit (0); - } -}], - jm_cv_func_memcmp_working=yes, - jm_cv_func_memcmp_working=no, - jm_cv_func_memcmp_working=no)]) -test $jm_cv_func_memcmp_working = no \ - && AC_LIBOBJ(memcmp) -]) +#serial 6 AC_DEFUN(jm_FUNC_MEMCMP, -[AC_REQUIRE([jm_AC_FUNC_MEMCMP])dnl - if test $jm_cv_func_memcmp_working = no; then +[AC_REQUIRE([AC_FUNC_MEMCMP])dnl + if test $ac_cv_func_memcmp_working = no; then AC_DEFINE_UNQUOTED(memcmp, rpl_memcmp, [Define to rpl_memcmp if the replacement function should be used.]) fi