diff --git a/src/flann-1-fixes.patch b/src/flann-1-fixes.patch
index d68f630aea..bbdf800bf4 100644
--- a/src/flann-1-fixes.patch
+++ b/src/flann-1-fixes.patch
@@ -1,12 +1,10 @@
 This file is part of MXE.
 See index.html for further information.
 
-Contains ad hoc patches for cross building.
-
-From fd5ab57afe6608de707ccdf3bc4eefa9a07117cf Mon Sep 17 00:00:00 2001
+From cdd24cfc910a9a171451ad005fbcaa5530590609 Mon Sep 17 00:00:00 2001
 From: MXE
 Date: Sun, 10 Aug 2014 19:35:55 -0700
-Subject: [PATCH 1/2] Disable targets
+Subject: [PATCH 1/3] Disable targets
 
 Disable examples, test, and documentation in the CMakeLists.txt file.
 (The file unfortunately does not provide switches for this purpose.)
@@ -14,10 +12,10 @@ Disable examples, test, and documentation in the CMakeLists.txt file.
 Signed-off-by: Timothy Gu <timothygu99@gmail.com>
 
 diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 350eb8f..6ab370c 100644
+index 3279915..c1f930a 100644
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
-@@ -143,9 +143,9 @@ endif(WIN32)
+@@ -155,9 +155,9 @@ endif(WIN32)
  
  add_subdirectory( cmake )
  add_subdirectory( src )
@@ -34,171 +32,175 @@ index 350eb8f..6ab370c 100644
 1.9.1
 
 
-From 9081c609e07642e9316bd7ba846a619539030e17 Mon Sep 17 00:00:00 2001
-From: MXE
-Date: Sun, 10 Aug 2014 19:43:25 -0700
-Subject: [PATCH 2/2] Use BUILD_SHARED_LIBS to control which kind of libs to
+From 2102cb0509bd4ab569be05472baaef2970129124 Mon Sep 17 00:00:00 2001
+From: Timothy Gu <timothygu99@gmail.com>
+Date: Mon, 11 Aug 2014 10:09:08 -0700
+Subject: [PATCH 2/3] Fix gcc compile flags
+
+Signed-off-by: Timothy Gu <timothygu99@gmail.com>
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c1f930a..02928d3 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -146,12 +146,12 @@ include_directories(${PROJECT_SOURCE_DIR}/src/cpp)
+ # require proper c++
+ #add_definitions( "-Wall -ansi -pedantic" )
+ # HDF5 uses long long which is not ansi
+-if (WIN32)
++if (WIN32 AND NOT CMAKE_COMPILER_IS_GNUCC)
+     # lots of warnings with cl.exe right now, use /W1
+     add_definitions("/W1 -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS /bigobj")
+-else(WIN32)
++else(WIN32 AND NOT CMAKE_COMPILER_IS_GNUCC)
+     add_definitions( "-Wall -Wno-unknown-pragmas -Wno-unused-function" )
+-endif(WIN32)
++endif(WIN32 AND NOT CMAKE_COMPILER_IS_GNUCC)
+ 
+ add_subdirectory( cmake )
+ add_subdirectory( src )
+-- 
+1.9.1
+
+
+From 7f37bdf57f85753e0258be10bc7b1f98535145be Mon Sep 17 00:00:00 2001
+From: Timothy Gu <timothygu99@gmail.com>
+Date: Mon, 11 Aug 2014 09:57:42 -0700
+Subject: [PATCH 3/3] Use BUILD_SHARED_LIBS to control which kind of libs to
  build
 
-Also removes the Linux-only --whole-archive trick.
+Also removes the Linux-only --whole-archive trick, and CUDA libs.
 
 Signed-off-by: Timothy Gu <timothygu99@gmail.com>
 
 diff --git a/src/cpp/CMakeLists.txt b/src/cpp/CMakeLists.txt
-index 0e9c544..333fb89 100644
+index 78a204a..7e6e353 100644
 --- a/src/cpp/CMakeLists.txt
 +++ b/src/cpp/CMakeLists.txt
-@@ -8,40 +8,20 @@ file(GLOB_RECURSE C_SOURCES flann.cpp)
+@@ -8,58 +8,17 @@ file(GLOB_RECURSE C_SOURCES flann.cpp)
  file(GLOB_RECURSE CPP_SOURCES flann_cpp.cpp)
  file(GLOB_RECURSE CU_SOURCES *.cu)
  
 -add_library(flann_cpp_s STATIC ${CPP_SOURCES})
--if(CMAKE_COMPILER_IS_GNUCC)
+-if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
 -    set_target_properties(flann_cpp_s PROPERTIES COMPILE_FLAGS -fPIC)
 -endif()
--set_property(TARGET flann_cpp_s PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
+-set_property(TARGET flann_cpp_s PROPERTY COMPILE_DEFINITIONS FLANN_STATIC FLANN_USE_CUDA)
 -
- if (BUILD_CUDA_LIB)
-     if(CMAKE_COMPILER_IS_GNUCC)
- 		set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};-Xcompiler;-fPIC;-arch=sm_13;--compiler-bindir=${NVCC_COMPILER_BINDIR}" )
-     else()
- 	    set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};-arch=sm_13" )
-     endif()
+-if (BUILD_CUDA_LIB)
+-    SET(CUDA_NVCC_FLAGS -DFLANN_USE_CUDA)
+-    if(CMAKE_COMPILER_IS_GNUCC)
+-		set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};-Xcompiler;-fPIC;-arch=sm_13" )
+-        if (NVCC_COMPILER_BINDIR)
+-            set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};--compiler-bindir=${NVCC_COMPILER_BINDIR}")
+-        endif()
+-    else()
+-	    set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS};-arch=sm_13" )
+-    endif()
 -    cuda_add_library(flann_cuda_s STATIC ${CU_SOURCES})
 -    set_property(TARGET flann_cuda_s PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
- endif()
+-endif()
  
 -if(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_COMPILER_IS_GNUCC)
 -    add_library(flann_cpp SHARED "")
 -    set_target_properties(flann_cpp PROPERTIES LINKER_LANGUAGE CXX)
 -    target_link_libraries(flann_cpp -Wl,-whole-archive flann_cpp_s -Wl,-no-whole-archive)
--
-+    add_library(flann_cpp ${CPP_SOURCES})
-     if (BUILD_CUDA_LIB)
++add_library(flann_cpp ${CPP_SOURCES})
+ 
+-    if (BUILD_CUDA_LIB)
 -	    cuda_add_library(flann_cuda SHARED "")
 -        set_target_properties(flann_cuda PROPERTIES LINKER_LANGUAGE CXX)
 -        target_link_libraries(flann_cuda -Wl,-whole-archive flann_cuda_s -Wl,-no-whole-archive)
+-        set_property(TARGET flann_cpp_s PROPERTY COMPILE_DEFINITIONS FLANN_USE_CUDA)
 -    # 	target_link_libraries(flann_cuda cudpp_x86_64)
-+		cuda_add_library(flann_cuda ${CPP_SOURCES})
-     endif()
+-    endif()
 -else()
 -    add_library(flann_cpp SHARED ${CPP_SOURCES})
 -    if (BUILD_CUDA_LIB)
 -		cuda_add_library(flann_cuda SHARED ${CPP_SOURCES})
+-        set_property(TARGET flann_cpp PROPERTY COMPILE_DEFINITIONS FLANN_USE_CUDA)
 -    endif()
 -endif()
- 
+-
+-set_target_properties(flann_cpp PROPERTIES
+-   VERSION ${FLANN_VERSION}
+-   SOVERSION ${FLANN_SOVERSION}
+-   DEFINE_SYMBOL FLANN_EXPORTS
+-) 
+-
+-if (BUILD_CUDA_LIB)
+-    set_target_properties(flann_cuda PROPERTIES
 +if (BUILD_SHARED_LIBS)
- set_target_properties(flann_cpp PROPERTIES
-    VERSION ${FLANN_VERSION}
-    SOVERSION ${FLANN_SOVERSION}
-@@ -55,18 +35,25 @@ if (BUILD_CUDA_LIB)
++    set_target_properties(flann_cpp PROPERTIES
+        VERSION ${FLANN_VERSION}
+        SOVERSION ${FLANN_SOVERSION}
         DEFINE_SYMBOL FLANN_EXPORTS
      ) 
- endif()
 +else()
 +    set_property(TARGET flann_cpp PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
-+    if (BUILD_CUDA_LIB)
-+        set_property(TARGET flann_cuda PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
-+    endif()
-+endif()
- 
- 
- #debug libraries
--add_library(flann_cpp-gd SHARED ${CPP_SOURCES})
-+add_library(flann_cpp-gd ${CPP_SOURCES})
-+if (BUILD_SHARED_LIBS)
- set_target_properties(flann_cpp-gd PROPERTIES 
-     COMPILE_FLAGS ${CMAKE_CXX_FLAGS_DEBUG}
-     DEFINE_SYMBOL FLANN_EXPORTS
- )
--
--add_library(flann_cpp_s-gd STATIC ${CPP_SOURCES})
--set_target_properties(flann_cpp_s-gd PROPERTIES COMPILE_FLAGS ${CMAKE_CXX_FLAGS_DEBUG})
--set_property(TARGET flann_cpp_s-gd PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
-+else()
-+set_target_properties(flann_cpp-gd PROPERTIES COMPILE_FLAGS ${CMAKE_CXX_FLAGS_DEBUG})
-+set_property(TARGET flann_cpp-gd PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
-+endif()
- 
+ endif()
  
  
-@@ -90,37 +77,29 @@ if (HDF5_FOUND)
- endif()
+@@ -76,60 +35,39 @@ endif()
  
- if (BUILD_CUDA_LIB)
--    add_library(flann_cuda-gd SHARED ${CPP_SOURCES})
-+    add_library(flann_cuda-gd ${CPP_SOURCES})
-+    if (BUILD_SHARED_LIBS)
-     set_target_properties(flann_cuda-gd PROPERTIES 
-         COMPILE_FLAGS ${CMAKE_CXX_FLAGS_DEBUG}
-         DEFINE_SYMBOL FLANN_EXPORTS
-     )
--
--    add_library(flann_cuda_s-gd STATIC ${CPP_SOURCES})
--    set_target_properties(flann_cuda_s-gd PROPERTIES COMPILE_FLAGS ${CMAKE_CXX_FLAGS_DEBUG})
--    set_property(TARGET flann_cuda_s-gd PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
-+    else()
-+    set_target_properties(flann_cuda-gd PROPERTIES COMPILE_FLAGS ${CMAKE_CXX_FLAGS_DEBUG})
-+    set_property(TARGET flann_cuda-gd PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
-+    endif()
- endif()
  
  if (BUILD_C_BINDINGS)
 -    add_library(flann_s STATIC ${C_SOURCES})
--    if(CMAKE_COMPILER_IS_GNUCC)
+-    if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
 -        set_target_properties(flann_s PROPERTIES COMPILE_FLAGS -fPIC)
 -    endif()
 -    set_property(TARGET flann_s PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
--
++    add_library(flann ${C_SOURCES})
+ 
 -    if(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_COMPILER_IS_GNUCC)
 -        add_library(flann SHARED "")
 -        set_target_properties(flann PROPERTIES LINKER_LANGUAGE CXX)
 -        target_link_libraries(flann -Wl,-whole-archive flann_s -Wl,-no-whole-archive)
-+    add_library(flann ${C_SOURCES})
 +    if (NOT BUILD_SHARED_LIBS)
-+    set_property(TARGET flann PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
++        set_property(TARGET flann PROPERTY COMPILE_DEFINITIONS FLANN_STATIC)
      else()
 -        add_library(flann SHARED ${C_SOURCES})
--    endif()
++        set_target_properties(flann PROPERTIES
++           VERSION ${FLANN_VERSION}
++           SOVERSION ${FLANN_SOVERSION}
++           DEFINE_SYMBOL FLANN_EXPORTS
++        ) 
+     endif()
 -
-     set_target_properties(flann PROPERTIES
-        VERSION ${FLANN_VERSION}
-        SOVERSION ${FLANN_SOVERSION}
-        DEFINE_SYMBOL FLANN_EXPORTS
-     ) 
-+    endif()
- endif()
- 
- 
-@@ -129,13 +108,15 @@ if (BUILD_C_BINDINGS)
-     install (
-         TARGETS flann
-         RUNTIME DESTINATION share/flann/matlab
-+        LIBRARY DESTINATION ${FLANN_LIB_INSTALL_DIR}
-+        ARCHIVE DESTINATION ${FLANN_LIB_INSTALL_DIR}
-     )
+-    set_target_properties(flann PROPERTIES
+-       VERSION ${FLANN_VERSION}
+-       SOVERSION ${FLANN_SOVERSION}
+-       DEFINE_SYMBOL FLANN_EXPORTS
+-    ) 
+-endif()
+-
+-if(WIN32)
+-if (BUILD_C_BINDINGS)
+-    install (
+-        TARGETS flann
+-        RUNTIME DESTINATION share/flann/matlab
+-    )
  endif()
- endif(WIN32)
- 
+-endif(WIN32)
+-
  
  install (
--    TARGETS flann_cpp flann_cpp_s flann_cpp-gd flann_cpp_s-gd
-+    TARGETS flann_cpp flann_cpp-gd
+-    TARGETS flann_cpp flann_cpp_s
++    TARGETS flann_cpp
      RUNTIME DESTINATION bin
      LIBRARY DESTINATION ${FLANN_LIB_INSTALL_DIR}
      ARCHIVE DESTINATION ${FLANN_LIB_INSTALL_DIR}
-@@ -143,7 +124,7 @@ install (
+ )
   
- if (BUILD_CUDA_LIB)
-     install (
--        TARGETS flann_cuda flann_cuda_s flann_cuda-gd flann_cuda_s-gd
-+        TARGETS flann_cuda flann_cuda-gd
-         RUNTIME DESTINATION bin
-         LIBRARY DESTINATION ${FLANN_LIB_INSTALL_DIR}
-         ARCHIVE DESTINATION ${FLANN_LIB_INSTALL_DIR}
-@@ -152,7 +133,7 @@ endif()
- 
+-if (BUILD_CUDA_LIB)
+-    install (
+-        TARGETS flann_cuda flann_cuda_s
+-        RUNTIME DESTINATION bin
+-        LIBRARY DESTINATION ${FLANN_LIB_INSTALL_DIR}
+-        ARCHIVE DESTINATION ${FLANN_LIB_INSTALL_DIR}
+-    )
+-endif()
+-
  if (BUILD_C_BINDINGS)
      install (
 -        TARGETS flann flann_s
@@ -206,11 +208,16 @@ index 0e9c544..333fb89 100644
          RUNTIME DESTINATION bin
          LIBRARY DESTINATION ${FLANN_LIB_INSTALL_DIR}
          ARCHIVE DESTINATION ${FLANN_LIB_INSTALL_DIR}
-@@ -164,3 +145,4 @@ install (
-     DESTINATION include
-     FILES_MATCHING PATTERN "*.h" PATTERN "*.hpp"
- )
-+
+     )
++    if (WIN32 AND BUILD_SHARED_LIBS)
++        install (
++            TARGETS flann
++            RUNTIME DESTINATION share/flann/matlab
++        )
++    endif(WIN32 AND BUILD_SHARED_LIBS)
+ endif()
+ 
+ install (
 -- 
 1.9.1
 
diff --git a/src/flann.mk b/src/flann.mk
index c4e62fb8a0..af31d7337e 100644
--- a/src/flann.mk
+++ b/src/flann.mk
@@ -3,8 +3,8 @@
 
 PKG             := flann
 $(PKG)_IGNORE   :=
-$(PKG)_VERSION  := 1.7.1
-$(PKG)_CHECKSUM := 61b9858620528919ea60a2a4b085ccc2b3c2d138
+$(PKG)_VERSION  := 1.8.4
+$(PKG)_CHECKSUM := e03d9d458757f70f6af1d330ff453e3621550a4f
 $(PKG)_SUBDIR   := flann-$($(PKG)_VERSION)-src
 $(PKG)_FILE     := flann-$($(PKG)_VERSION)-src.zip
 $(PKG)_URL      := http://people.cs.ubc.ca/~mariusm/uploads/FLANN/$($(PKG)_FILE)
@@ -26,6 +26,7 @@ define $(PKG)_BUILD
         -DCMAKE_BUILD_TYPE=Release \
         -DBUILD_CUDA_LIB=OFF \
         -DBUILD_MATLAB_BINDINGS=OFF \
-        -DBUILD_PYTHON_BINDINGS=OFF
+        -DBUILD_PYTHON_BINDINGS=OFF  \
+        -DUSE_OPENMP=OFF
     $(MAKE) -C '$(1)' -j '$(JOBS)' install VERBOSE=1
 endef