diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index 8af8a8f96..d5c510853 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -67,6 +67,7 @@ function(prusaslicer_add_cmake_project projectname)
         ${_gen}
         CMAKE_ARGS
             -DCMAKE_INSTALL_PREFIX:STRING=${DESTDIR}/usr/local
+            -DCMAKE_MODULE_PATH:STRING=${PROJECT_SOURCE_DIR}/../cmake/modules
             -DCMAKE_PREFIX_PATH:STRING=${DESTDIR}/usr/local
             -DCMAKE_DEBUG_POSTFIX:STRING=d
             -DCMAKE_C_COMPILER:STRING=${CMAKE_C_COMPILER}
diff --git a/deps/OpenCSG/CMakeLists.txt.in b/deps/OpenCSG/CMakeLists.txt.in
index 83f3665b6..37da0f789 100644
--- a/deps/OpenCSG/CMakeLists.txt.in
+++ b/deps/OpenCSG/CMakeLists.txt.in
@@ -9,6 +9,8 @@ elseif (MSVC)
 endif()
 
 find_package(OpenGL REQUIRED)
+
+set(GLEW_VERBOSE ON)
 find_package(GLEW 1.13.0 REQUIRED)
 
 set(_srcfiles 
diff --git a/deps/OpenCSG/OpenCSG.cmake b/deps/OpenCSG/OpenCSG.cmake
index fb904d53d..d9de5e152 100644
--- a/deps/OpenCSG/OpenCSG.cmake
+++ b/deps/OpenCSG/OpenCSG.cmake
@@ -6,6 +6,10 @@ prusaslicer_add_cmake_project(OpenCSG
     DEPENDS dep_GLEW
 )
 
+if (TARGET dep_ZLIB)
+    add_dependencies(dep_OpenCSG dep_ZLIB)
+endif()
+
 if (MSVC)
     add_debug_dep(dep_OpenCSG)
 endif ()
\ No newline at end of file
diff --git a/deps/ZLIB/0001-Respect-BUILD_SHARED_LIBS.patch b/deps/ZLIB/0001-Respect-BUILD_SHARED_LIBS.patch
new file mode 100644
index 000000000..e65ec0e65
--- /dev/null
+++ b/deps/ZLIB/0001-Respect-BUILD_SHARED_LIBS.patch
@@ -0,0 +1,51 @@
+From 0c64e33bc2e4e7c011f5a64f5d9c7571a434cc86 Mon Sep 17 00:00:00 2001
+From: tamasmeszaros <meszaros.q@gmail.com>
+Date: Sat, 16 Nov 2019 13:43:17 +0100
+Subject: [PATCH] Respect BUILD_SHARED_LIBS
+
+---
+ CMakeLists.txt | 14 ++++++++------
+ 1 file changed, 8 insertions(+), 6 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0fe939d..01dfea1 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -183,10 +183,12 @@ if(MINGW)
+     set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
+ endif(MINGW)
+ 
+-add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+-add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+-set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
+-set_target_properties(zlib PROPERTIES SOVERSION 1)
++add_library(zlib ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
++if (BUILD_SHARED_LIBS)
++    target_sources(zlib PRIVATE ${ZLIB_DLL_SRCS})
++    set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
++    set_target_properties(zlib PROPERTIES SOVERSION 1)
++endif()
+ 
+ if(NOT CYGWIN)
+     # This property causes shared libraries on Linux to have the full version
+@@ -201,7 +203,7 @@ endif()
+ 
+ if(UNIX)
+     # On unix-like platforms the library is almost always called libz
+-   set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
++   set_target_properties(zlib PROPERTIES OUTPUT_NAME z)
+    if(NOT APPLE)
+      set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
+    endif()
+@@ -211,7 +213,7 @@ elseif(BUILD_SHARED_LIBS AND WIN32)
+ endif()
+ 
+ if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
+-    install(TARGETS zlib zlibstatic
++    install(TARGETS zlib
+         RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
+         ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
+         LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
+-- 
+2.16.2.windows.1
+
diff --git a/deps/ZLIB/ZLIB.cmake b/deps/ZLIB/ZLIB.cmake
new file mode 100644
index 000000000..574f5b134
--- /dev/null
+++ b/deps/ZLIB/ZLIB.cmake
@@ -0,0 +1,10 @@
+prusaslicer_add_cmake_project(ZLIB
+  GIT_REPOSITORY https://github.com/madler/zlib.git
+  GIT_TAG v1.2.11
+  PATCH_COMMAND       ${GIT_EXECUTABLE} checkout -f -- . && git clean -df && 
+                      ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_LIST_DIR}/0001-Respect-BUILD_SHARED_LIBS.patch
+  CMAKE_ARGS
+    -DSKIP_INSTALL_FILES=ON         # Prevent installation of man pages et al.
+    -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+)
+
diff --git a/deps/deps-unix-common.cmake b/deps/deps-unix-common.cmake
index b6e6653cd..ad06ae77f 100644
--- a/deps/deps-unix-common.cmake
+++ b/deps/deps-unix-common.cmake
@@ -7,7 +7,10 @@ else ()
     set(TBB_MINGW_WORKAROUND "")
 endif ()
 
-find_package(ZLIB REQUIRED)
+find_package(ZLIB QUIET)
+if (NOT ZLIB_FOUND)
+    include(ZLIB/ZLIB.cmake)
+endif ()
 
 ExternalProject_Add(dep_tbb
     EXCLUDE_FROM_ALL 1
diff --git a/deps/deps-windows.cmake b/deps/deps-windows.cmake
index 276129a8d..fc1823dc7 100644
--- a/deps/deps-windows.cmake
+++ b/deps/deps-windows.cmake
@@ -149,36 +149,37 @@ ExternalProject_Add(dep_nlopt
 
 add_debug_dep(dep_nlopt)
 
-ExternalProject_Add(dep_zlib
-    EXCLUDE_FROM_ALL 1
-    URL "https://zlib.net/zlib-1.2.11.tar.xz"
-    URL_HASH SHA256=4ff941449631ace0d4d203e3483be9dbc9da454084111f97ea0a2114e19bf066
-    CMAKE_GENERATOR "${DEP_MSVC_GEN}"
-    CMAKE_GENERATOR_PLATFORM "${DEP_PLATFORM}"
-    CMAKE_ARGS
-        -DSKIP_INSTALL_FILES=ON                                    # Prevent installation of man pages et al.
-        "-DINSTALL_BIN_DIR=${CMAKE_CURRENT_BINARY_DIR}\\fallout"   # I found no better way of preventing zlib from creating & installing DLLs :-/
-        -DCMAKE_POSITION_INDEPENDENT_CODE=ON
-        "-DCMAKE_INSTALL_PREFIX:PATH=${DESTDIR}\\usr\\local"
-    BUILD_COMMAND msbuild /m /P:Configuration=Release INSTALL.vcxproj
-    INSTALL_COMMAND ""
-)
+include(ZLIB/ZLIB.cmake)
+# ExternalProject_Add(dep_zlib
+#     EXCLUDE_FROM_ALL 1
+#     URL "https://zlib.net/zlib-1.2.11.tar.xz"
+#     URL_HASH SHA256=4ff941449631ace0d4d203e3483be9dbc9da454084111f97ea0a2114e19bf066
+#     CMAKE_GENERATOR "${DEP_MSVC_GEN}"
+#     CMAKE_GENERATOR_PLATFORM "${DEP_PLATFORM}"
+#     CMAKE_ARGS
+#         -DSKIP_INSTALL_FILES=ON                                    # Prevent installation of man pages et al.
+#         "-DINSTALL_BIN_DIR=${CMAKE_CURRENT_BINARY_DIR}\\fallout"   # I found no better way of preventing zlib from creating & installing DLLs :-/
+#         -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+#         "-DCMAKE_INSTALL_PREFIX:PATH=${DESTDIR}\\usr\\local"
+#     BUILD_COMMAND msbuild /m /P:Configuration=Release INSTALL.vcxproj
+#     INSTALL_COMMAND ""
+# )
 
-add_debug_dep(dep_zlib)
+add_debug_dep(dep_ZLIB)
 
 # The following steps are unfortunately needed to remove the _static suffix on libraries
-ExternalProject_Add_Step(dep_zlib fix_static
-    DEPENDEES install
-    COMMAND "${CMAKE_COMMAND}" -E rename zlibstatic.lib zlib.lib
-    WORKING_DIRECTORY "${DESTDIR}\\usr\\local\\lib\\"
-)
-if (${DEP_DEBUG})
-    ExternalProject_Add_Step(dep_zlib fix_static_debug
-        DEPENDEES install
-        COMMAND "${CMAKE_COMMAND}" -E rename zlibstaticd.lib zlibd.lib
-        WORKING_DIRECTORY "${DESTDIR}\\usr\\local\\lib\\"
-    )
-endif ()
+# ExternalProject_Add_Step(dep_zlib fix_static
+#     DEPENDEES install
+#     COMMAND "${CMAKE_COMMAND}" -E rename zlibstatic.lib zlib.lib
+#     WORKING_DIRECTORY "${DESTDIR}\\usr\\local\\lib\\"
+# )
+# if (${DEP_DEBUG})
+#     ExternalProject_Add_Step(dep_zlib fix_static_debug
+#         DEPENDEES install
+#         COMMAND "${CMAKE_COMMAND}" -E rename zlibstaticd.lib zlibd.lib
+#         WORKING_DIRECTORY "${DESTDIR}\\usr\\local\\lib\\"
+#     )
+# endif ()
 
 if (${DEPS_BITS} EQUAL 32)
     set(DEP_LIBCURL_TARGET "x86")
@@ -273,7 +274,7 @@ ExternalProject_Add(dep_blosc
     #URL_HASH SHA256=7463a1df566704f212263312717ab2c36b45d45cba6cd0dccebf91b2cc4b4da9
     GIT_REPOSITORY https://github.com/Blosc/c-blosc.git
     GIT_TAG e63775855294b50820ef44d1b157f4de1cc38d3e #v1.17.0
-    DEPENDS dep_zlib
+    DEPENDS dep_ZLIB
     CMAKE_GENERATOR "${DEP_MSVC_GEN}"
     CMAKE_GENERATOR_PLATFORM "${DEP_PLATFORM}"
     CMAKE_ARGS
@@ -300,7 +301,7 @@ ExternalProject_Add(dep_openexr
     EXCLUDE_FROM_ALL 1
     GIT_REPOSITORY https://github.com/openexr/openexr.git
     GIT_TAG eae0e337c9f5117e78114fd05f7a415819df413a #v2.4.0 
-    DEPENDS dep_zlib
+    DEPENDS dep_ZLIB
     CMAKE_GENERATOR "${DEP_MSVC_GEN}"
     CMAKE_GENERATOR_PLATFORM "${DEP_PLATFORM}"
     CMAKE_ARGS