diff --git a/CMakeLists.txt b/CMakeLists.txt
index ecb4a5be7..48fe7145c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,6 +37,16 @@ function( add_pk3 PK3_NAME PK3_DIR )
 		DEPENDS ${ZDOOM_OUTPUT_DIR}/${PK3_NAME} )
 endfunction( add_pk3 )
 
+# Macro for building libraries without debugging information
+macro( make_release_only )
+	set( CMAKE_C_FLAGS_DEBUG ${CMAKE_C_FLAGS_RELEASE} )
+	set( CMAKE_C_FLAGS_MINSIZEREL ${CMAKE_C_FLAGS_RELEASE} )
+	set( CMAKE_C_FLAGS_RELWITHDEBINFO ${CMAKE_C_FLAGS_RELEASE} )
+	set( CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_RELEASE} )
+	set( CMAKE_CXX_FLAGS_MINSIZEREL ${CMAKE_CXX_FLAGS_RELEASE} )
+	set( CMAKE_CXX_FLAGS_RELWITHDEBINFO ${CMAKE_CXX_FLAGS_RELEASE} )
+endmacro( make_release_only )
+
 IF( NOT CMAKE_BUILD_TYPE )
 	SET( CMAKE_BUILD_TYPE Debug CACHE STRING
 		"Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
diff --git a/bzip2/CMakeLists.txt b/bzip2/CMakeLists.txt
index 6006f491c..5f35eb346 100644
--- a/bzip2/CMakeLists.txt
+++ b/bzip2/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required( VERSION 2.4 )
 
+make_release_only()
+
 if( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" )
 	set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -fomit-frame-pointer" )
 endif( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" )
diff --git a/dumb/CMakeLists.txt b/dumb/CMakeLists.txt
index ee50c4a0a..178de53a9 100644
--- a/dumb/CMakeLists.txt
+++ b/dumb/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required( VERSION 2.4 )
 
+make_release_only()
+
 include( CheckFunctionExists )
 
 # DUMB is much slower in a Debug build than a Release build, so we force a Release
diff --git a/game-music-emu/CMakeLists.txt b/game-music-emu/CMakeLists.txt
index 5c4a03043..f880023ab 100644
--- a/game-music-emu/CMakeLists.txt
+++ b/game-music-emu/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required( VERSION 2.4 )
 include( CheckCXXCompilerFlag )
 
+make_release_only()
+
 # I don't plan on debugging this, so make it a release build.
 if( NOT CMAKE_BUILD_TYPE MATCHES "Release" )
 	set( CMAKE_BUILD_TYPE "RelWithDebInfo" )
diff --git a/jpeg-6b/CMakeLists.txt b/jpeg-6b/CMakeLists.txt
index 5c8b5972e..21096465e 100644
--- a/jpeg-6b/CMakeLists.txt
+++ b/jpeg-6b/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required( VERSION 2.4 )
 
+make_release_only()
+
 if( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" )
 	set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -fomit-frame-pointer" )
 endif( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" )
diff --git a/lzma/CMakeLists.txt b/lzma/CMakeLists.txt
index 7582712fe..019383d42 100644
--- a/lzma/CMakeLists.txt
+++ b/lzma/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required( VERSION 2.4 )
 
+make_release_only()
+
 if( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" )
 	set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -fomit-frame-pointer" )
 endif( "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" )
diff --git a/zlib/CMakeLists.txt b/zlib/CMakeLists.txt
index 7ac44940a..43795934d 100644
--- a/zlib/CMakeLists.txt
+++ b/zlib/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 2.4.4)
 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
 
+make_release_only()
+
 project(zlib C)
 
 set(VERSION "1.2.7")