diff --git a/3rdparty/qtiocompressor/CMakeLists.txt b/3rdparty/qtiocompressor/CMakeLists.txt
deleted file mode 100644
index 2767969e4..000000000
--- a/3rdparty/qtiocompressor/CMakeLists.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-set(qtiocompressor_SRCS
-    qtiocompressor.cpp
-)
-
-set(qtiocompressor_MOC_HDRS
-    qtiocompressor.h
-)
-
-QT4_WRAP_CPP(qtiocompressor_MOC_SRCS ${qtiocompressor_MOC_HDRS})
-
-include_directories(
-    ${ZLIB_INCLUDE_DIR}
-)
-
-add_library(qtiocompressor OBJECT
-    ${qtiocompressor_SRCS}
-    ${qtiocompressor_MOC_SRCS}
-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d11fbce31..855b4bc2c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.8)
+cmake_minimum_required(VERSION 2.6)
 project(mmapper)
 
 find_package(Qt4 REQUIRED)
@@ -14,14 +14,15 @@ find_path(QTIOCOMPRESSOR_INCLUDE_DIRS qtiocompressor.h PATH_SUFFIXES QtSolutions
 find_library(QTIOCOMPRESSOR_LIBRARIES QtSolutions_IOCompressor-2.3)
 if (QTIOCOMPRESSOR_INCLUDE_DIRS AND QTIOCOMPRESSOR_LIBRARIES)
     message(STATUS "Found QtIOCompressor: ${QTIOCOMPRESSOR_LIBRARIES}")
-    set(QTIOCOMPRESSOR_INTERNAL "")
+    set(qtiocompressor_SRCS "")
+    set(qtiocompressor_MOC_HDRS "")
 else()
     message(STATUS "QtIOCompressor not found; using bundled copy.")
     find_package(ZLIB REQUIRED)
-    add_subdirectory(3rdparty/qtiocompressor)
     set(QTIOCOMPRESSOR_INCLUDE_DIRS ${PROJECT_SOURCE_DIR}/3rdparty/qtiocompressor)
     set(QTIOCOMPRESSOR_LIBRARIES "")
-    set(QTIOCOMPRESSOR_INTERNAL $<TARGET_OBJECTS:qtiocompressor>)
+    set(qtiocompressor_SRCS     ${PROJECT_SOURCE_DIR}/3rdparty/qtiocompressor/qtiocompressor.cpp)
+    set(qtiocompressor_MOC_HDRS ${PROJECT_SOURCE_DIR}/3rdparty/qtiocompressor/qtiocompressor.h)
 endif()
 
 # Version
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index af9fd1dca..fe1722e3c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -150,7 +150,7 @@ include_directories(
     ${QTIOCOMPRESSOR_INCLUDE_DIRS}
 )
 
-QT4_WRAP_CPP(mmapper_MOC_SRCS ${mmapper_MOC_HDRS})
+QT4_WRAP_CPP(mmapper_MOC_SRCS ${mmapper_MOC_HDRS} ${qtiocompressor_MOC_HDRS})
 QT4_WRAP_UI(mmapper_UIS_H ${mmapper_UIS})
 QT4_ADD_RESOURCES(mmapper_RCC_SRCS ${mmapper_RCS})
 
@@ -165,7 +165,7 @@ add_executable(mmapper ${EXECUTABLE_FLAGS}
     ${mmapper_UIS_H}
     ${mmapper_RCC_SRCS}
     ${mmapper_WINRC}
-    ${QTIOCOMPRESSOR_INTERNAL}
+    ${qtiocompressor_SRCS}
 )
 
 target_link_libraries(mmapper