diff --git a/CHANGES.txt b/CHANGES.txt
index 310a6e24..571ba07d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -24,6 +24,7 @@ RC1 -> RC2
 - Fixed separator between library dependencies in C++ makefiles
 - Added missing os.copyfile() function
 - Bug: Sometimes takes a long time to complete on Linux
+- Enabled Lua popen support on Linux and Mac OS X
 
 
 -----
diff --git a/premake4.lua b/premake4.lua
index 71851e95..1fb3f403 100644
--- a/premake4.lua
+++ b/premake4.lua
@@ -72,7 +72,11 @@ end
 			defines     { "_CRT_SECURE_NO_WARNINGS" }
 
 		configuration "linux"
-			links       { "m" } 
+			defines     { "LUA_USE_LINUX" }
+			links       { "m", "dl" } 
+			
+		configuration "macosx"
+			defines     { "LUA_USE_MACOSX" }