From 728cf780b1a3fa457b34c40e90ea698ec6b0595e Mon Sep 17 00:00:00 2001
From: Eli Barzilay <eli@barzilay.org>
Date: Wed, 2 Feb 2011 16:09:06 -0500
Subject: [PATCH] Avoid compiling plot if the source directory is missing
 (cherry picked from commit e91f243b641016468b2f8a98376193f26aae2302)

---
 src/racket/configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/racket/configure.ac b/src/racket/configure.ac
index 8b5b0978cc..2488891852 100644
--- a/src/racket/configure.ac
+++ b/src/racket/configure.ac
@@ -1259,7 +1259,7 @@ fi
 makefiles="$makefiles foreign/Makefile"
 ac_configure_args="$ac_configure_args$SUB_CONFIGURE_EXTRAS"
 
-if test "${enable_plot}" = "yes" ; then
+if test -d "${srcdir}/plot" && test "${enable_plot}" = "yes" ; then
   makefiles="$makefiles
              plot/Makefile"
   MAKE_PLOT=plot