From b7e19b4953f6f9c3377781342e517c78ebf27bce Mon Sep 17 00:00:00 2001
From: Paul Mucur <mudge@mudge.name>
Date: Tue, 16 Aug 2011 22:26:57 +0100
Subject: [PATCH] Solaris doesn't support readlink so use greadlink if
 available instead.

Taken from Ryan Tomayko's "GNU is killing Solaris", c.f. http://tomayko.com/writings/gnu-is-killing-solaris
---
 libexec/rbenv      | 6 +++++-
 libexec/rbenv-init | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/libexec/rbenv b/libexec/rbenv
index 87181d7b..ec8adb2a 100755
--- a/libexec/rbenv
+++ b/libexec/rbenv
@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 set -e
 
+resolve_link() {
+  $(type -p greadlink readlink | head -1) $1
+}
+
 abs_dirname() {
   local cwd="$(pwd)"
   local path="$1"
@@ -8,7 +12,7 @@ abs_dirname() {
   while [ -n "$path" ]; do
     cd "${path%/*}"
     local name="${path##*/}"
-    path="$(readlink "$name" || true)"
+    path="$(resolve_link "$name" || true)"
   done
 
   pwd
diff --git a/libexec/rbenv-init b/libexec/rbenv-init
index 392edf40..3e670372 100755
--- a/libexec/rbenv-init
+++ b/libexec/rbenv-init
@@ -12,6 +12,10 @@ if [ -z "$shell" ]; then
   shell="$(basename "$SHELL")"
 fi
 
+resolve_link() {
+  $(type -p greadlink readlink | head -1) $1
+}
+
 abs_dirname() {
   local cwd="$(pwd)"
   local path="$1"
@@ -19,7 +23,7 @@ abs_dirname() {
   while [ -n "$path" ]; do
     cd "${path%/*}"
     local name="${path##*/}"
-    path="$(readlink "$name" || true)"
+    path="$(resolve_link "$name" || true)"
   done
 
   pwd