dnl --allow-shlib-undefined flag defined. This causes a stackload of
dnl warnings when building modules.
if test "$ac_cv_prog_gnu_ld" = "yes"; then
- ac_cv_gnu_ld_version=`$CC -Wl,-v /dev/null 2>/dev/null | head -1`
+ ac_cv_gnu_ld_version=`$CC -Wl,-v /dev/null 2>&1 < /dev/null | grep "GNU ld"`
AC_MSG_CHECKING(GNU ld release date)
changequote(,)dnl
ac_cv_gnu_ld_date=`echo $ac_cv_gnu_ld_version | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
AC_DEFINE(HAVE_STAT_DOS_FLAGS, 1, [whether there is DOS flags support in the stat struct])
fi
+AC_CACHE_CHECK([whether we can compile with __attribute__((destructor))],
+ samba_cv_function_attribute_destructor,
+ [
+ AC_COMPILE_IFELSE(
+ [
+ __attribute__((destructor))
+ static void cleanup(void) { }
+ ],
+ samba_cv_function_attribute_destructor=yes)
+ ])
+
+if test x"$samba_cv_function_attribute_destructor" = xyes ; then
+ AC_DEFINE(HAVE_FUNCTION_ATTRIBUTE_DESTRUCTOR, 1,
+ [whether we can compile with __attribute__((destructor))])
+fi
+
#####################################
# needed for SRV lookups
AC_CHECK_LIB(resolv, dn_expand)
#################################################
# check for sendfile support
-with_sendfile_support=yes
-AC_MSG_CHECKING(whether to check to support sendfile)
+AC_MSG_CHECKING(whether sendfile support should be built in)
AC_ARG_WITH(sendfile-support,
-[AS_HELP_STRING([--with-sendfile-support], [Check for sendfile support (default=yes)])],
+[AS_HELP_STRING([--with-sendfile-support], [Whether sendfile support should be built in (default=auto)])],
[ case "$withval" in
- yes)
-
- AC_MSG_RESULT(yes);
+ yes|no)
+ AC_MSG_RESULT($withval);
+ with_sendfile_support=$withval
+ ;;
+ *)
+ AC_MSG_RESULT(yes)
+ with_sendfile_support=auto
+ ;;
+ esac ],
+)
- case "$host_os" in
+if test x$with_sendfile_support != xno ; then
+ case "$host_os" in
*linux* | gnu* | k*bsd*-gnu | kopensolaris*-gnu)
AC_CACHE_CHECK([for linux sendfile64 support],samba_cv_HAVE_SENDFILE64,[
AC_TRY_LINK([#include <sys/sendfile.h>],
;;
*)
;;
- esac
- ;;
- *)
- AC_MSG_RESULT(no)
- ;;
- esac ],
- AC_MSG_RESULT(yes)
-)
+ esac
+fi
+
+if test x$with_sendfile_support = xyes -a x"$samba_cv_HAVE_SENDFILE" != xyes ; then
+ AC_MSG_ERROR(sendfile support requested but sendfile not available )
+fi
############################################
# See if we have the Linux readahead syscall.