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| author | Bruce Momjian <bruce@momjian.us> | 2001-12-20 21:23:05 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2001-12-20 21:23:05 +0000 |
| commit | 8799d84603d607f614198d7967ee6cff0d274ff4 (patch) | |
| tree | 11883d415291e68f3b940b7b0fec47aba6d97cbb /config | |
| parent | 960f6a5fdf9aafea93585cd7a4cef5044aebe078 (diff) | |
| download | postgresql-8799d84603d607f614198d7967ee6cff0d274ff4.tar.gz | |
Add memcmp() test and new memcmp.c file, for SunOS. Tested by Tatsuo.
Diffstat (limited to 'config')
| -rw-r--r-- | config/c-library.m4 | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/config/c-library.m4 b/config/c-library.m4 index 6558f29f62..3232b09d59 100644 --- a/config/c-library.m4 +++ b/config/c-library.m4 @@ -1,5 +1,5 @@ # Macros that test various C library quirks -# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.9 2001/09/07 19:52:53 momjian Exp $ +# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.10 2001/12/20 21:23:05 momjian Exp $ # PGAC_VAR_INT_TIMEZONE @@ -36,6 +36,30 @@ if test x"$pgac_cv_func_gettimeofday_1arg" = xyes ; then fi])# PGAC_FUNC_GETTIMEOFDAY_1ARG +# PGAC_FUNC_MEMCMP +# ----------- +# Check if memcmp() properly handles negative bytes and returns +/-. +# SunOS does not. +# AC_FUNC_MEMCMP +AC_DEFUN(PGAC_FUNC_MEMCMP, +[AC_CACHE_CHECK(for 8-bit clean memcmp, pgac_cv_func_memcmp_clean, +[AC_TRY_RUN([ +main() +{ + char c0 = 0x40, c1 = 0x80, c2 = 0x81; + exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1); +} +], pgac_cv_func_memcmp_clean=yes, pgac_cv_func_memcmp_clean=no, +pgac_cv_func_memcmp_clean=no)]) +if test $pgac_cv_func_memcmp_clean = no ; then + MEMCMP=memcmp.o +else + MEMCMP= +fi +AC_SUBST(MEMCMP)dnl +]) + + # PGAC_UNION_SEMUN # ---------------- # Check if `union semun' exists. Define HAVE_UNION_SEMUN if so. |