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Diffstat (limited to 'source4/build/m4')
| -rw-r--r-- | source4/build/m4/rewrite.m4 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/source4/build/m4/rewrite.m4 b/source4/build/m4/rewrite.m4 index f0279c69d0..cd39371354 100644 --- a/source4/build/m4/rewrite.m4 +++ b/source4/build/m4/rewrite.m4 @@ -496,6 +496,18 @@ fi ;; esac +AC_CACHE_CHECK([for O_DIRECT flag to open(2)],samba_cv_HAVE_OPEN_O_DIRECT,[ +AC_TRY_COMPILE([ +#include <unistd.h> +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif], +[int fd = open("/dev/null", O_DIRECT);], +samba_cv_HAVE_OPEN_O_DIRECT=yes,samba_cv_HAVE_OPEN_O_DIRECT=no)]) +if test x"$samba_cv_HAVE_OPEN_O_DIRECT" = x"yes"; then + AC_DEFINE(HAVE_OPEN_O_DIRECT,1,[Whether the open(2) accepts O_DIRECT]) +fi + ############################################### # test for where we get crypt() from AC_CHECK_LIB_EXT(crypt, CRYPT_LIBS, crypt) |