diff --git a/README.md b/README.md
index 8c7ae0a1b7..5bae63defd 100644
--- a/README.md
+++ b/README.md
@@ -13,21 +13,22 @@ Prerequisites
 -------------
 
 - Linux or Mac OS X
-- boost, if using gcc 4.8 or earlier to compile on Linux
+- boost
 - CMake 2.8
 - GCC dependencies: GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+
+- bison version 3.0.2 or later
 - Apple Universal Interfaces (tested with version 3.1 - see below)
 - An ancient Mac and/or an emulator.
 
 For Ubuntu Linux, the following should help a bit:
 
-    sudo apt-get install cmake libgmp-dev libmpfr-dev libmpc-dev
+    sudo apt-get install cmake libgmp-dev libmpfr-dev libmpc-dev libboost-all-dev bison
 
 On a Mac, get the homebrew package manager and:
 
-    brew install cmake gmp mpfr libmpc
+    brew install cmake gmp mpfr libmpc boost bison
 
-You can also run Retro68 on a PowerMac G4 or G5 running Mac OS 10.4 (Tiger).
+In theory, you can also run Retro68 on a PowerMac G4 or G5 running Mac OS 10.4 (Tiger).
 In that case, get the tigerbrew package manager and
 
     brew install gcc cmake
diff --git a/ResourceFiles/CMakeLists.txt b/ResourceFiles/CMakeLists.txt
index 40c984a2df..27eb239a8c 100644
--- a/ResourceFiles/CMakeLists.txt
+++ b/ResourceFiles/CMakeLists.txt
@@ -18,7 +18,7 @@
 cmake_minimum_required(VERSION 2.8)
 set(CMAKE_CXX_FLAGS "--std=c++0x -Wall -Werror=return-type")
 
-find_package(Boost COMPONENTS filesystem system)
+find_package(Boost COMPONENTS filesystem system REQUIRED)
 
 add_library(ResourceFiles
 	ResourceFork.h ResourceFork.cc
diff --git a/Rez/CMakeLists.txt b/Rez/CMakeLists.txt
index e256d59161..9e2a7a73c7 100644
--- a/Rez/CMakeLists.txt
+++ b/Rez/CMakeLists.txt
@@ -21,9 +21,11 @@ set(CMAKE_CXX_FLAGS "--std=c++11 -Wall")
 
 find_package(Boost COMPONENTS wave filesystem system thread regex program_options)
 
-if(Boost_FOUND)
+set(CMAKE_PROGRAM_PATH $CMAKE_PROGRAM_PATH "/usr/local/opt/bison/bin")
+find_package(BISON 3.0.2)
+
+if(Boost_FOUND AND BISON_FOUND)
 
-find_package(BISON REQUIRED)
 
 include_directories(. ${CMAKE_CURRENT_BINARY_DIR})
 
@@ -68,4 +70,6 @@ install(TARGETS Rez RUNTIME DESTINATION bin)
 
 add_subdirectory(Test)
 
-endif(Boost_FOUND)
+else(Boost_FOUND AND BISON_FOUND)
+	message(WARNING "Rez compiler will not be built; both boost and Bison 3.0.2 are required")
+endif(Boost_FOUND AND BISON_FOUND)