diff --git a/include/pangolin/gl/colour.h b/include/pangolin/gl/colour.h
index 92bedf4..8c3e542 100644
--- a/include/pangolin/gl/colour.h
+++ b/include/pangolin/gl/colour.h
@@ -28,6 +28,7 @@
 #pragma once
 
 #include <cmath>
+#include <limits>
 
 #include <stdexcept>
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index ddeb144..ee27d57 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -299,7 +299,9 @@ if(BUILD_PANGOLIN_PYTHON AND BUILD_PANGOLIN_GUI AND BUILD_PANGOLIN_VARS AND NOT
 
   if(pybind11_FOUND)
     set(HAVE_PYTHON 1)
-
+  if (UNIX)
+    set(PYTHON_LIBRARY ${PYTHON_LIBRARY} dl util)
+  endif()
     file(GLOB pypangolin_SRC "python/pypangolin/*.cpp" )
     file(GLOB pypangolin_HDR "python/pypangolin/*.hpp" )
     list(APPEND HEADERS
@@ -382,6 +384,7 @@ endif()
 
 option(BUILD_PANGOLIN_FFMPEG "Build support for ffmpeg video input" ON)
 if(BUILD_PANGOLIN_FFMPEG AND BUILD_PANGOLIN_VIDEO)
+  add_definitions(-DHAVE_FFMPEG_AVPIXELFORMAT)
   find_package(FFMPEG QUIET)
   if(FFMPEG_FOUND)
     set(HAVE_FFMPEG 1)
@@ -464,11 +467,14 @@ endif()
 
 option(BUILD_PANGOLIN_LIBUVC "Build support for libuvc video input" ON)
 if(BUILD_PANGOLIN_LIBUVC AND BUILD_PANGOLIN_VIDEO)
-  find_package(uvc QUIET)
-  if(uvc_FOUND)
+  find_package(libuvc CONFIG QUIET)
+  if(libuvc_FOUND)
     set(HAVE_UVC 1)
-    list(APPEND INTERNAL_INC  ${uvc_INCLUDE_DIRS} )
-    list(APPEND LINK_LIBS ${uvc_LIBRARIES} )
+    if (TARGET LibUVC::UVCShared)
+        list(APPEND LINK_LIBS LibUVC::UVCShared )
+    else()
+        list(APPEND LINK_LIBS LibUVC::UVCStatic )
+    endif()
     list(APPEND HEADERS ${INCDIR}/video/drivers/uvc.h )
     list(APPEND SOURCES video/drivers/uvc.cpp)
     list(APPEND VIDEO_FACTORY_REG RegisterUvcVideoFactory )
@@ -584,11 +590,14 @@ endif()
 
 option(BUILD_PANGOLIN_LIBOPENEXR "Build support for libopenexr image input" ON)
 if(BUILD_PANGOLIN_LIBOPENEXR)
-  find_package(OpenEXR QUIET)
+  find_package(OpenEXR CONFIG QUIET)
   if(OpenEXR_FOUND)
     set(HAVE_OPENEXR 1)
-    list(APPEND INTERNAL_INC ${OpenEXR_INCLUDE_DIR} )
-    list(APPEND LINK_LIBS ${OpenEXR_LIBRARY} )
+    list(APPEND LINK_LIBS OpenEXR::OpenEXR)
+    string(APPEND ExternConfig "
+  include(CMakeFindDependencyMacro)
+  find_dependency(OpenEXR CONFIG)
+")
     message(STATUS "libopenexr Found and Enabled")
   endif()
 endif()
@@ -630,6 +635,13 @@ endif()
 
 set(INSTALL_INCLUDE_DIR "include")
 
+# Required by geometry
+if(NOT BUILD_EXTERN_GLEW)
+    find_package(GLEW REQUIRED)
+endif()
+list(APPEND USER_INC  ${GLEW_INCLUDE_DIR})
+list(APPEND LINK_LIBS ${GLEW_LIBRARY})
+
 add_library(${LIBRARY_NAME} ${SOURCES} ${HEADERS})
 # 'System' includes shield us from warnings in those includes.
 target_include_directories(${LIBRARY_NAME} SYSTEM PUBLIC ${USER_INC} PRIVATE ${INTERNAL_INC})
@@ -692,7 +704,13 @@ CreateMethodCallFile(
 option(BUILD_PYPANGOLIN_MODULE "Python wrapper for Pangolin" ON)
 if(BUILD_PYPANGOLIN_MODULE AND HAVE_PYTHON )
     file(GLOB pypangolin_SRC "python/pypangolin/*.hpp" "python/pypangolin/*.cpp" "python/pypangolin_module.cpp")
-    pybind11_add_module(pypangolin ${pypangolin_SRC})
+    if (BUILD_SHARED_LIBS)
+        set(PYBIND11_MODULE_TYPE SHARED)
+    else()
+        set(PYBIND11_MODULE_TYPE STATIC)
+    endif()
+
+    pybind11_add_module(pypangolin ${PYBIND11_MODULE_TYPE} ${pypangolin_SRC})
     target_link_libraries(pypangolin PRIVATE ${LIBRARY_NAME})
     target_include_directories(pypangolin PRIVATE "${USER_INC}")
 endif()
diff --git a/src/image/image_io_exr.cpp b/src/image/image_io_exr.cpp
index 52c0078..1bd6c55 100644
--- a/src/image/image_io_exr.cpp
+++ b/src/image/image_io_exr.cpp
@@ -4,6 +4,8 @@
 #include <pangolin/image/typed_image.h>
 
 #ifdef HAVE_OPENEXR
+#include <ImfFrameBuffer.h>
+#include <ImfHeader.h>
 #include <ImfChannelList.h>
 #include <ImfInputFile.h>
 #include <ImfOutputFile.h>
@@ -54,12 +56,12 @@ class StdIStream: public Imf::IStream
         return true;
     }
 
-    virtual Imf::Int64 tellg ()
+    virtual uint64_t tellg ()
     {
         return std::streamoff (_is->tellg());
     }
 
-    virtual void seekg (Imf::Int64 pos)
+    virtual void seekg (uint64_t pos)
     {
         _is->seekg (pos);
     }