Add various miscellaneous generated files to the gitignore file

[tools/e2fsprogs.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 4ede01c..f69a193 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -945,6 +945,25 @@ AC_CHECK_HEADERS(m4_flatten([
        sys/un.h
        sys/wait.h
 ]))
+dnl Check where to find a dd(1) that supports iflag=fullblock
+dnl and oflag=append
+AC_MSG_CHECKING([for a dd(1) program that supports iflag=fullblock])
+DD=
+for i in dd gdd ; do
+       if "$i" if=/dev/null of=/dev/null count=1 bs=10k 2>/dev/null iflag=fullblock oflag=append ; then
+               DD=$i
+               break
+       fi
+done
+if test -n "$DD" ; then
+       AC_MSG_RESULT([$DD])
+else
+       AC_MSG_RESULT([not found, using dd])
+       DD=dd
+       AC_MSG_WARN([No GNU-compatible dd(1) program found, expect some self-test failures.])
+fi
+AC_SUBST([DD])
+
 AC_CHECK_HEADERS(net/if.h,,,
 [[
 #if HAVE_SYS_TYPES_H