Fixed mac compatibility.

README.md

@@ -80,7 +80,7 @@ The latest version of Spreed WebRTC can be found on GitHub:
 
   - [NodeJS](http://nodejs.org/) >= 0.10.0
   - [JSHint](http://www.jshint.com/) >= 2.0.0
-  - [Sass](http://sass-lang.com/) >= 3.4.0
+  - [Sass](http://sass-lang.com/) >= 3.3.0
   - [Compass](http://compass-style.org/)
   - [autoprefixer](https://www.npmjs.org/package/autoprefixer) 1.1
   - [Babel](http://babel.pocoo.org/)

configure.ac

@@ -135,7 +135,7 @@ AC_SUBST(COMPASS)
 
 if test x"${SASS}" != x"" ; then
     AC_MSG_CHECKING([for compass support in sass])
-    tempfile=`mktemp`
+    tempfile=`mktemp -t XXXXXXblah`
     cd src/styles
     $SASS --compass $tempfile > /dev/null 2> /dev/null
     sass_compass=$?