diff --git a/configure.ac b/configure.ac
index 334a1f49..e707a1a9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -117,7 +117,7 @@ CFLAGS="$save_CFLAGS"
 if test x$XSERVER_LIBPCIACCESS = xyes; then
 	PKG_CHECK_MODULES([PCIACCESS], [pciaccess >= 0.10.0])
 else
-	PKG_CHECK_MODULES([PCIACCESS], [pciaccess >= 0.5.0],
+	PKG_CHECK_MODULES([PCIACCESS], [pciaccess >= 0.10.0],
 				       have_libpciaccess=yes,
 				       have_libpciaccess=no)
 fi
@@ -216,6 +216,8 @@ AC_SUBST([moduledir])
 DRIVER_NAME=intel
 AC_SUBST([DRIVER_NAME])
 
+m4_ifndef([XORG_MACROS_VERSION], [AC_FATAL([must install xorg-macros 1.1.3 or later before running autoconf/autogen])])
+XORG_MACROS_VERSION(1.1.3)
 XORG_MANPAGE_SECTIONS
 XORG_RELEASE_VERSION