diff --git a/configure.ac b/configure.ac
index 4a33ac022..92dc5c9b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -448,6 +448,9 @@ AC_ARG_WITH(os-name,         AS_HELP_STRING([--with-os-name=OSNAME], [Name of OS
 AC_ARG_WITH(os-vendor,       AS_HELP_STRING([--with-os-vendor=OSVENDOR], [Name of OS vendor]),
 				[ OSVENDOR="$withval" ],
 				[ OSVENDOR="" ])
+AC_ARG_WITH(builderstring,   AS_HELP_STRING([--with-builderstring=BUILDERSTRING], [Additional builder string]),
+				[ BUILDERSTRING="$withval" ]
+				[ ])
 AC_ARG_WITH(mesa-source,     AS_HELP_STRING([--with-mesa-source=MESA_SOURCE], [Path to Mesa source tree]),
                                 [ MESA_SOURCE="$withval" ],
                                 [ MESA_SOURCE="" ])
@@ -934,6 +937,8 @@ AC_DEFINE_UNQUOTED(XORG_MAN_VERSION, ["$VENDOR_MAN_VERSION"], [Vendor man versio
 AC_DEFINE_UNQUOTED(BUILDERADDR, ["$BUILDERADDR"], [Builder address])
 AC_DEFINE_UNQUOTED(OSNAME, ["$OSNAME"], [Operating System Name])
 AC_DEFINE_UNQUOTED(OSVENDOR, ["$OSVENDOR"], [Operating System Vendor])
+AC_DEFINE_UNQUOTED(BUILDERSTRING, ["$BUILDERSTRING"], [Builder string])
+
 AC_SUBST([VENDOR_STRING])
 AC_SUBST([VENDOR_STRING_SHORT])
 AC_SUBST([VENDOR_RELEASE])
diff --git a/include/dix-config.h.in b/include/dix-config.h.in
index 1a9fdc516..458e3a11a 100644
--- a/include/dix-config.h.in
+++ b/include/dix-config.h.in
@@ -15,6 +15,9 @@
 /* Operating System Vendor */
 #undef OSVENDOR
 
+/* Builder string */
+#undef BUILDERSTRING
+
 /* Default font path */
 #undef COMPILEDDEFAULTFONTPATH