configure.ac: use AC_PROG_SED
It looks like AC_PROG_SED was added in 2.59b, and wasn't in the
original 2.59 in the original 2.59. Presumably that's why, though
it could've been an oversight.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Matt Turner <mattst88@gmail.com>
diff --git a/configure.ac b/configure.ac
index bc3a831..e2302de 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,8 +38,8 @@
AC_PROG_CXX
AC_CHECK_PROGS([MAKE], [gmake make])
AC_CHECK_PROGS([PYTHON2], [python2 python])
+AC_PROG_SED
AC_PATH_PROG([MKDEP], [makedepend])
-AC_PATH_PROG([SED], [sed])
if test "x$MKDEP" = "x"; then
AC_MSG_ERROR([makedepend is required to build Mesa])