From c43f2e55492aead6d2b5f483771cba0ac9e1bdab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20Rasc=C3=A3o?= <luis.rascao@gmail.com>
Date: Tue, 7 Jun 2016 23:33:38 +0100
Subject: Revert 'Treat port env vars as expandable only if they self
 reference'

Regression introduced in b816c69e343c8fd757c59fe8703eeda597f4da0a.
---
 src/rebar_port_compiler.erl | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/rebar_port_compiler.erl b/src/rebar_port_compiler.erl
index 7af45eb..57253e0 100644
--- a/src/rebar_port_compiler.erl
+++ b/src/rebar_port_compiler.erl
@@ -495,10 +495,9 @@ expand_command(TmplName, Env, InFiles, OutFile) ->
 
 %%
 %% Given a string, determine if it is expandable
-%% A string is defined as expandable if it contains itself
-%%  (eg. CFLAGS = -m64 $CFLAGS)
+%%
 is_expandable(InStr) ->
-    case re:run(InStr,"\\\$"++InStr,[{capture,none}]) of
+    case re:run(InStr,"\\\$",[{capture,none}]) of
         match -> true;
         nomatch -> false
     end.
-- 
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