From b3512f494e820cffe2b8c74d4d03dc1cbb0cd718 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mislav=20Marohni=C4=87?= <mislav.marohnic@gmail.com>
Date: Tue, 28 Oct 2014 15:24:39 +0100
Subject: [PATCH] Avoid endless recursion when rbx is installed over existing
 one

When installing rbx over an existing location, the `gems/bin` directory
will already be a symlink to `bin/` and an attempt to recreate this will
end up in recursion that keeps growing a binstub file until the disk is full.
---
 bin/ruby-build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/ruby-build b/bin/ruby-build
index 94029023..1332ba6d 100755
--- a/bin/ruby-build
+++ b/bin/ruby-build
@@ -644,7 +644,7 @@ fix_rbx_gem_binstubs() {
   local bindir="${prefix}/bin"
   local file binstub
   # Symlink Rubinius' `gems/bin/` into `bin/`
-  if [ -d "$gemdir" ]; then
+  if [ -d "$gemdir" ] && [ ! -L "$gemdir" ]; then
     for file in "$gemdir"/*; do
       binstub="${bindir}/${file##*/}"
       rm -f "$binstub"