diff --git a/extern/EtcLib/CMakeLists.txt b/extern/EtcLib/CMakeLists.txt
index b584b88..044b92b 100644
--- a/extern/EtcLib/CMakeLists.txt
+++ b/extern/EtcLib/CMakeLists.txt
@@ -21,4 +21,4 @@ file(GLOB SOURCES
 	${PROJECT_SOURCE_DIR}/EtcCodec/*.h
 	${PROJECT_SOURCE_DIR}/Etc/*.cpp
 	${PROJECT_SOURCE_DIR}/EtcCodec/*.cpp)
-ADD_LIBRARY(EtcLib ${SOURCES})
+ADD_LIBRARY(EtcLib STATIC ${SOURCES})
diff --git a/src/bc7/CMakeLists.txt b/src/bc7/CMakeLists.txt
index 2eb01c0..ab952f0 100644
--- a/src/bc7/CMakeLists.txt
+++ b/src/bc7/CMakeLists.txt
@@ -23,6 +23,8 @@ SET(BC7_SRCS
 
 ADD_LIBRARY(bc7 STATIC ${BC7_SRCS})
 
+TARGET_LINK_LIBRARIES(bc7 nvmath)
+
 IF(NOT WIN32)
     IF(CMAKE_COMPILER_IS_GNUCXX)
         SET_TARGET_PROPERTIES(bc7 PROPERTIES COMPILE_FLAGS -fPIC)
diff --git a/src/nvtt/tools/CMakeLists.txt b/src/nvtt/tools/CMakeLists.txt
index 5459bd1..6161a43 100644
--- a/src/nvtt/tools/CMakeLists.txt
+++ b/src/nvtt/tools/CMakeLists.txt
@@ -17,7 +17,7 @@ TARGET_LINK_LIBRARIES(nvassemble nvcore nvimage nvtt bc6h nvmath)
 ADD_EXECUTABLE(nvzoom resize.cpp cmdline.h)
 TARGET_LINK_LIBRARIES(nvzoom nvcore nvimage nvtt bc6h nvmath)
 
-SET(TOOLS nvcompress nvdecompress nvddsinfo nvassemble nvzoom)
+SET(TOOLS nvcompress nvdecompress nvddsinfo nvimgdiff nvassemble nvzoom)
 
 IF(GLEW_FOUND AND GLUT_FOUND AND OPENGL_FOUND)
     INCLUDE_DIRECTORIES(${GLEW_INCLUDE_PATH} ${GLUT_INCLUDE_DIR} ${OPENGL_INCLUDE_DIR})