[openexr,openimageio,suitesparse,theia] updates for non-win32 (#6371)

* [openexr,openimageio,suitesparse,theia] updates for non-win32

* [theia] use only valid cmake symbols

* [suitesparse] Fix build

* [lapack] still not properly integrating with other ports

* [lapack] intercept cmake module calls and substitute them with our defs

* [suitesparse,clapack] fixes for proper integration

* [ceres,clapack] bump CONTROL

* [suitesparse] remove unnecessary defs

* [clapack] improve wrapper logic

* [WIN32] remove wrong symbol

* [clapack] fix wrapper integration

* [Accelerate] use best framework when available

* [clapack] separate config from wrapper

* [clapack] fix paths and filenames

* [mlpack,armadillo,clapack] improve library handling

* [mlpack] remove unnecessary cmake option

* [clp,coinutils,osi,liblemon] dependencies of openmvg, improve compatibility with non-win32

* [openmvg] fix for case-sensitive filesystems

* [clp,coinutils,osi] simplify CMakeLists removing many unnecessary steps

* [sophus] Force rebuild

* [theia] fixes for linux, part1

* [io2d] remove broken sintax

* [fontconfig] bump version to remove CI cached failure

* [theia] fixes for linux, part2

* [theia] remove unnecessary empty folders and comments from portfile

* [theia] use correct build type removing forced vars in cmakelists.txt

* [openmvg] add missing suitesparse target detection

* [sophus] fix Suitesparse dependency

* [sophus,openmvg] use suitesparse lowercase for module compatibility on case-sensitive filesystems

* [suitesparse] fixes for case-sensitive filesystems

* [openmvg] use correct Eigen3 name for case-sensitive filesystems

* [sophus] trigger rebuild

* [shogun] use modern vcpkg style

* [shogun] add missing cmake system processor symbol

1 files changed, 405 insertions, 0 deletions

diff --git a/ports/theia/fix-external-dependencies.patch b/ports/theia/fix-external-dependencies.patch
new file mode 100644
index 000000000..7a4b00961
--- /dev/null
+++ b/ports/theia/fix-external-dependencies.patch
@@ -0,0 +1,405 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 9c1b150..5810156 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -129,70 +129,27 @@ endif ()
+ 
+ # GFlags. The namespace patch is borrow from Ceres Solver (see license in
+ # FindGflags.cmake)
++message("-- Check for Google Flags")
+ find_package(Gflags REQUIRED)
+-if (GFLAGS_FOUND)
+-  message("-- Found Google Flags: ${GFLAGS_INCLUDE_DIRS} in namespace: ${GFLAGS_NAMESPACE}")
+-  add_definitions(-DTHEIA_GFLAGS_NAMESPACE=${GFLAGS_NAMESPACE})
+-else (GFLAGS_FOUND)
+-  message(FATAL_ERROR "Can't find Google FLAGS.")
+-endif (GFLAGS_FOUND)
+ 
+ # Google Logging
+ message("-- Check for Google Log")
+ find_package(Glog REQUIRED)
+-if (GLOG_FOUND)
+-  message("-- Found Google Logging: ${GLOG_INCLUDE_DIRS}")
+-else (GLOG_FOUND)
+-  message(FATAL_ERROR "Can't find Google Logging. Please set GLOG_INCLUDE_DIR & "
+-    "GLOG_LIBRARY")
+-endif (GLOG_FOUND)
++
++# Flann
++message("-- Check for Flann")
++find_package(Flann REQUIRED)
+ 
+ # Ceres
+ message("-- Check for Ceres")
+ find_package(Ceres REQUIRED SuiteSparse)
+-if (CERES_FOUND)
+-  message("-- Found Ceres: ${CERES_INCLUDE_DIRS}")
+-else (CERES_FOUND)
+-  message(FATAL_ERROR "Can't find Ceres. Please set CERES_INCLUDE_DIR & "
+-    "CERES_LIBRARY")
+-endif (CERES_FOUND)
+ 
+ # OpenImageIO
+ message("-- Check for OpenImageIO")
+ find_package(OpenImageIO REQUIRED)
+-if (OPENIMAGEIO_FOUND)
+-  message("-- Found OpenImageIO: ${OPENIMAGEIO_INCLUDE_DIRS}")
+-else (OPENIMAGEIO_FOUND)
+-  message(FATAL_ERROR "Can't find OpenImageIO. Please set OPENIMAGEIO_INCLUDE_DIR & "
+-    "OPENIMAGEIO_LIBRARY")
+-endif (OPENIMAGEIO_FOUND)
+ 
+ # Suitesparse
+ find_package(SuiteSparse REQUIRED)
+-if (SUITESPARSE_FOUND)
+-  # On Ubuntu the system install of SuiteSparse (v3.4.0) up to at least
+-  # Ubuntu 13.10 cannot be used to link shared libraries.
+-  if (BUILD_SHARED_LIBS AND
+-      SUITESPARSE_IS_BROKEN_SHARED_LINKING_UBUNTU_SYSTEM_VERSION)
+-    message(FATAL_ERROR "You are attempting to build Theia as a shared "
+-      "library on Ubuntu using a system package install of SuiteSparse "
+-      "3.4.0. This package is broken and does not support the "
+-      "construction of shared libraries (you can still build Theia as "
+-      "a static library).  If you wish to build a shared version of Theia "
+-      "you should uninstall the system install of SuiteSparse "
+-      "(libsuitesparse-dev) and perform a source install of SuiteSparse "
+-      "(we recommend that you use the latest version), "
+-      "see http://theia-solver.org/building.html for more information.")
+-  endif (BUILD_SHARED_LIBS AND
+-    SUITESPARSE_IS_BROKEN_SHARED_LINKING_UBUNTU_SYSTEM_VERSION)
+-  message("-- Found SuiteSparse ${SUITESPARSE_VERSION}")
+-  add_definitions(-DTHEIA_SUITESPARSE_VERSION="${SUITESPARSE_VERSION}")
+-else (SUITESPARSE_FOUND)
+-  # Disable use of SuiteSparse if it cannot be found and continue.
+-  message(FATAL ERROR "Can't find SuiteSparse. This library is required "
+-    "for bundle adjustment and for solving convex optimization problems. "
+-    "Please set SUITESPARSE_INCLUDE_DIR & SUITESPARSE_LIBRARY")
+-endif (SUITESPARSE_FOUND)
+ 
+ include_directories(
+   include
+@@ -225,24 +182,19 @@ include_directories(
+   libraries/spectra
+   ${akaze_SOURCE_DIR}
+   ${akaze_INCLUDE_DIR}
+-  ${cereal_SOURCE_DIR}
+-  ${cereal_SOURCE_DIR}/include
+-  ${flann_SOURCE_DIR}
+-  ${flann_SOURCE_DIR}/src/cpp
+-  ${gtest_SOURCE_DIR}/include
+-  ${gtest_SOURCE_DIR}
+   ${optimo_SOURCE_DIR}
+   ${statx_SOURCE_DIR}
+   ${stlplus3_SOURCE_DIR}
+   ${vlfeat_SOURCE_DIR}
+-  ${visual_sfm_SOURCE_DIR})
++  ${visual_sfm_SOURCE_DIR}
++)
+ 
+ list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
+ include(OptimizeTheiaCompilerFlags)
+ optimizetheiacompilerflags()
+ 
+ add_subdirectory(src/theia)
+-add_subdirectory(applications)
++#add_subdirectory(applications)
+ 
+ if (BUILD_DOCUMENTATION)
+   message("-- Documentation building is enabled")
+@@ -260,7 +212,13 @@ install(FILES ${THEIA_HDRS} DESTINATION include/theia)
+ file(GLOB_RECURSE THEIA_INTERNAL_HDRS ${CMAKE_SOURCE_DIR}/src/theia/*.h)
+ install(DIRECTORY src/theia/ DESTINATION include/theia FILES_MATCHING PATTERN "*.h")
+ 
+-install(DIRECTORY libraries/ DESTINATION include/theia/libraries FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/akaze/ DESTINATION include/theia/libraries/akaze FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/optimo/ DESTINATION include/theia/libraries/optimo FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/spectra/ DESTINATION include/theia/libraries/spectra FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/statx/ DESTINATION include/theia/libraries/statx FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/stlplus3/ DESTINATION include/theia/libraries/stlplus3 FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/visual_sfm/ DESTINATION include/theia/libraries/visual_sfm FILES_MATCHING PATTERN "*.h*")
++install(DIRECTORY libraries/vlfeat/ DESTINATION include/theia/libraries/vlfeat FILES_MATCHING PATTERN "*.h*")
+ 
+ # Add an uninstall target to remove all installed files.
+ configure_file("${CMAKE_SOURCE_DIR}/cmake/uninstall.cmake.in"
+@@ -272,17 +230,10 @@ add_custom_target(uninstall
+ 
+ # Set up install directories. INCLUDE_INSTALL_DIR, LIB_INSTALL_DIR and
+ # CMAKECONFIG_INSTALL_DIR must not be absolute paths.
+-if (WIN32)
+-  set(INCLUDE_INSTALL_DIR Include)
+-  set(LIB_INSTALL_DIR Lib)
+-  set(CMAKECONFIG_INSTALL_DIR CMake)
+-  set(RELATIVE_CMAKECONFIG_INSTALL_DIR CMake)
+-else ()
+-  set(INCLUDE_INSTALL_DIR include)
+-  set(LIB_INSTALL_DIR lib)
+-  set(CMAKECONFIG_INSTALL_DIR share/Theia)
+-  set(RELATIVE_CMAKECONFIG_INSTALL_DIR share/Theia)
+-endif ()
++set(INCLUDE_INSTALL_DIR include)
++set(LIB_INSTALL_DIR lib)
++set(CMAKECONFIG_INSTALL_DIR share/theia)
++set(RELATIVE_CMAKECONFIG_INSTALL_DIR share/theia)
+ 
+ # This "exports" all targets which have been put into the export set
+ # "TheiaExport". This means that CMake generates a file with the given
+@@ -319,9 +270,5 @@ configure_file("${CMAKE_SOURCE_DIR}/cmake/TheiaConfigVersion.cmake.in"
+ # in the public API of Theia and should thus be present in THEIA_INCLUDE_DIRS.
+ install(FILES "${CMAKE_CURRENT_BINARY_DIR}/TheiaConfig.cmake"
+               "${CMAKE_CURRENT_BINARY_DIR}/TheiaConfigVersion.cmake"
+-              "${CMAKE_SOURCE_DIR}/cmake/FindEigen.cmake"
+-              "${CMAKE_SOURCE_DIR}/cmake/FindGlog.cmake"
+-              "${CMAKE_SOURCE_DIR}/cmake/FindGflags.cmake"
+-	      "${CMAKE_SOURCE_DIR}/cmake/FindOpenImageIO.cmake"
+-              "${CMAKE_SOURCE_DIR}/cmake/FindSuiteSparse.cmake"
++              "${CMAKE_SOURCE_DIR}/cmake/FindOpenImageIO.cmake"
+               DESTINATION ${CMAKECONFIG_INSTALL_DIR})
+diff --git a/cmake/TheiaConfig.cmake.in b/cmake/TheiaConfig.cmake.in
+index a3ea187..7e9d912 100644
+--- a/cmake/TheiaConfig.cmake.in
++++ b/cmake/TheiaConfig.cmake.in
+@@ -124,14 +124,7 @@ list(APPEND CERES_INCLUDE_DIR_HINTS @CERES_INCLUDE_DIR@)
+ get_filename_component(THEIA_BUILD_CERES_LIBRARY_DIR @CERES_LIBRARIES@ PATH)
+ list(APPEND CERES_LIBRARY_DIR_HINTS ${THEIA_BUILD_CERES_LIBRARY_DIR})
+ # Search quietly s/t we control the timing of the error message if not found.
+-find_package(Ceres QUIET)
+-if (CERES_FOUND)
+-  message(STATUS "Found required Theia dependency: "
+-    "Ceres in ${CERES_INCLUDE_DIRS}")
+-else (CERES_FOUND)
+-  theia_report_not_found("Missing required Theia "
+-    "dependency: Ceres, please set CERES_INCLUDE_DIR.")
+-endif (CERES_FOUND)
++find_package(Ceres REQUIRED)
+ list(APPEND THEIA_INCLUDE_DIRS ${CERES_INCLUDE_DIRS})
+ 
+ # Glog.
+@@ -140,64 +133,19 @@ list(APPEND GLOG_INCLUDE_DIR_HINTS @GLOG_INCLUDE_DIR@)
+ get_filename_component(THEIA_BUILD_GLOG_LIBRARY_DIR @GLOG_LIBRARY@ PATH)
+ list(APPEND GLOG_LIBRARY_DIR_HINTS ${THEIA_BUILD_GLOG_LIBRARY_DIR})
+ # Search quietly s/t we control the timing of the error message if not found.
+-find_package(Glog QUIET)
+-if (GLOG_FOUND)
+-  message(STATUS "Found required Theia dependency: "
+-    "Glog in ${GLOG_INCLUDE_DIRS}")
+-else (GLOG_FOUND)
+-  theia_report_not_found("Missing required Theia "
+-    "dependency: Glog, please set GLOG_INCLUDE_DIR.")
+-endif (GLOG_FOUND)
++find_package(Glog REQUIRED)
+ list(APPEND THEIA_INCLUDE_DIRS ${GLOG_INCLUDE_DIRS})
+ 
+ # GFlags. The namespace patch is borrow from Ceres Solver (see license in
+ # FindGflags.cmake)
+-find_package(Gflags QUIET)
+-if (GFLAGS_FOUND)
+-  message(STATUS "Found required Theia dependency: Google Flags in "
+-    "${GFLAGS_INCLUDE_DIRS} in namespace: ${GFLAGS_NAMESPACE}")
+-  add_definitions(-DTHEIA_GFLAGS_NAMESPACE=${GFLAGS_NAMESPACE})
+-else (GFLAGS_FOUND)
+-  theia_report_not_found("Missing required Theia dependency: Google Flags, please set "
+-    "GFLAGS_INCLUDE_DIR.")
+-endif (GFLAGS_FOUND)
++find_package(Gflags REQUIRED)
+ list(APPEND THEIA_INCLUDE_DIRS ${GFLAGS_INCLUDE_DIRS})
+ 
+ # OpenImageIO
+-find_package(OpenImageIO QUIET)
+-if (OPENIMAGEIO_FOUND)
+-  message(STATUS "Found Theia dependency: OpenImageIO in ${OPENIMAGEIO_INCLUDE_DIRS}")
+-else (OPENIMAGEIO_FOUND)
+-  theia_report_not_found("Missing required Theia dependency: OpenImageIO. Please set "
+-    "OPENIMAGEIO_INCLUDE_DIR & OPENIMAGEIO_LIBRARY")
+-endif (OPENIMAGEIO_FOUND)
++find_package(OpenImageIO REQUIRED)
+ list(APPEND THEIA_INCLUDE_DIRS ${OPENIMAGEIO_INCLUDE_DIRS})
+ 
+-find_package(SuiteSparse QUIET)
+-if (SUITESPARSE_FOUND)
+-  # On Ubuntu the system install of SuiteSparse (v3.4.0) up to at least
+-  # Ubuntu 13.10 cannot be used to link shared libraries.
+-  if (BUILD_SHARED_LIBS AND
+-      SUITESPARSE_IS_BROKEN_SHARED_LINKING_UBUNTU_SYSTEM_VERSION)
+-    theia_report_not_found("You are attempting to build Theia as a shared "
+-      "library on Ubuntu using a system package install of SuiteSparse "
+-      "3.4.0. This package is broken and does not support the "
+-      "construction of shared libraries (you can still build Theia as "
+-      "a static library).  If you wish to build a shared version of Theia "
+-      "you should uninstall the system install of SuiteSparse "
+-      "(libsuitesparse-dev) and perform a source install of SuiteSparse "
+-      "(we recommend that you use the latest version), "
+-      "see http://theia-solver.org/building.html for more information.")
+-  endif (BUILD_SHARED_LIBS AND
+-    SUITESPARSE_IS_BROKEN_SHARED_LINKING_UBUNTU_SYSTEM_VERSION)
+-  message("-- Found SuiteSparse ${SUITESPARSE_VERSION}")
+-  add_definitions(-DTHEIA_SUITESPARSE_VERSION="${SUITESPARSE_VERSION}")
+-else (SUITESPARSE_FOUND)
+-  # Disable use of SuiteSparse if it cannot be found and continue.
+-  theia_report_not_found("Can't find SuiteSparse. This library is required "
+-    "for bundle adjustment and for solving convex optimization problems. "
+-    "Please set SUITESPARSE_INCLUDE_DIR & SUITESPARSE_LIBRARY")
+-endif (SUITESPARSE_FOUND)
++find_package(SuiteSparse REQUIRED)
+ list(APPEND THEIA_INCLUDE_DIRS ${SUITESPARSE_INCLUDE_DIRS})
+ 
+ # Import exported Theia targets.
+@@ -207,22 +155,24 @@ endif (NOT TARGET theia AND NOT Theia_BINARY_DIR)
+ # Set the expected XX_LIBRARIES variable for FindPackage().
+ set(THEIA_LIBRARIES theia)
+ 
++find_package(cereal REQUIRED)
++list(APPEND THEIA_LIBRARIES cereal)
++
++find_package(Flann REQUIRED)
++list(APPEND THEIA_INCLUDE_DIRS ${FLANN_INCLUDE_DIR})
++list(APPEND THEIA_LIBRARIES ${FLANN_LIBRARY})
++
+ # Add the libraries included with the distribution.
+ set(THEIA_INTERNAL_LIB_PREFIX ${THEIA_INCLUDE_DIR}/theia/libraries)
+ set(THEIA_INTERNAL_LIBS_INCLUDES
+   ${THEIA_INTERNAL_LIB_PREFIX}
+   ${THEIA_INTERNAL_LIB_PREFIX}/akaze
+-  ${THEIA_INTERNAL_LIB_PREFIX}/cereal
+-  ${THEIA_INTERNAL_LIB_PREFIX}/cereal/include
+-  ${THEIA_INTERNAL_LIB_PREFIX}/flann
+-  ${THEIA_INTERNAL_LIB_PREFIX}/gtest
+-  ${THEIA_INTERNAL_LIB_PREFIX}/gtest/include
+   ${THEIA_INTERNAL_LIB_PREFIX}/optimo
+   ${THEIA_INTERNAL_LIB_PREFIX}/spectra
+   ${THEIA_INTERNAL_LIB_PREFIX}/statx
+   ${THEIA_INTERNAL_LIB_PREFIX}/stlplus3
+-  ${THEIA_INTERNAL_LIB_PREFIX}/vlfeat
+-  ${THEIA_INTERNAL_LIB_PREFIX}/visual_sfm)
++  ${THEIA_INTERNAL_LIB_PREFIX}/visual_sfm
++  ${THEIA_INTERNAL_LIB_PREFIX}/vlfeat)
+ 
+ list(APPEND THEIA_INCLUDE_DIRS ${THEIA_INTERNAL_LIBS_INCLUDES})
+ 
+diff --git a/libraries/CMakeLists.txt b/libraries/CMakeLists.txt
+index 84f3829..f88d75a 100644
+--- a/libraries/CMakeLists.txt
++++ b/libraries/CMakeLists.txt
+@@ -5,12 +5,6 @@ endif (${BUILD_TESTING})
+ # AKAZE feature extractor.
+ add_subdirectory(akaze)
+ 
+-# Cereal for portable IO.
+-add_subdirectory(cereal)
+-
+-# Flann for fast approximate nearest neighbor searches.
+-add_subdirectory(flann)
+-
+ # Add Optimo.
+ add_subdirectory(optimo)
+ 
+@@ -24,4 +18,4 @@ add_subdirectory(stlplus3)
+ add_subdirectory(vlfeat)
+ 
+ # Add VisualSfM files.
+-add_subdirectory(visual_sfm)
+\ No newline at end of file
++add_subdirectory(visual_sfm)
+diff --git a/libraries/statx/CMakeLists.txt b/libraries/statx/CMakeLists.txt
+index 23b9e49..af236a3 100644
+--- a/libraries/statx/CMakeLists.txt
++++ b/libraries/statx/CMakeLists.txt
+@@ -103,7 +103,11 @@ if(STATX_WITH_CERES)
+   endif(CERES_FOUND)
+ 
+   # BLAS
+-  find_package(BLAS REQUIRED)
++  if(UNIX AND NOT APPLE)
++    find_package(OpenBLAS REQUIRED)
++  else()
++    find_package(BLAS REQUIRED)
++  endif()
+ 
+   # LAPACK
+   find_package(LAPACK REQUIRED)
+@@ -129,7 +133,6 @@ set(XGAMMA_FILES ${XGAMMA_FUNCS}/asa121.cpp ${XGAMMA_FUNCS}/asa103.cpp)
+ 
+ # Setting CXX FLAGS appropriately. The code below was inspired from
+ # Google CERES and modified for this library.
+-set (CMAKE_BUILD_TYPE Release)
+ set (STATX_CXX_FLAGS)
+ 
+ if (CMAKE_BUILD_TYPE STREQUAL "Release")
+diff --git a/libraries/vlfeat/CMakeLists.txt b/libraries/vlfeat/CMakeLists.txt
+index 7f4ffc7..15bca12 100644
+--- a/libraries/vlfeat/CMakeLists.txt
++++ b/libraries/vlfeat/CMakeLists.txt
+@@ -18,14 +18,19 @@ set(vl_sources
+   vl/random.c
+   vl/sift.c
+   vl/vlad.c)
++
+ set_source_files_properties(${vl_sources} PROPERTIES LANGUAGE C)
+ 
++add_library(vlfeat ${vl_sources})
++
+ if (MSVC)
+-  add_definitions(-DVL_BUILD_DLL)
+-  add_definitions(-DVL_DISABLE_SSE2)
++  if(BUILD_SHARED_LIBS)
++    target_compile_definitions(vlfeat PRIVATE VL_BUILD_DLL)
++    target_compile_definitions(vlfeat INTERFACE BUILD_DLL)
++  endif()
++  target_compile_definitions(vlfeat PUBLIC VL_DISABLE_SSE2)
+ endif (MSVC)
+ 
+-add_library(vlfeat SHARED ${vl_sources})
+ install(TARGETS vlfeat
+   EXPORT  TheiaExport
+   RUNTIME DESTINATION bin
+diff --git a/libraries/vlfeat/vl/host.h b/libraries/vlfeat/vl/host.h
+index 293fe1f..0ea3d42 100644
+--- a/libraries/vlfeat/vl/host.h
++++ b/libraries/vlfeat/vl/host.h
+@@ -312,27 +312,31 @@ defined(__DOXYGEN__)
+ #if defined(VL_COMPILER_MSC) & ! defined(__DOXYGEN__)
+ #  define VL_UNUSED
+ #  define VL_INLINE static __inline
+-#  define snprintf _snprintf
+ #  define isnan _isnan
+-#  ifdef VL_BUILD_DLL
++#  if defined(VL_BUILD_DLL)
+ #    ifdef __cplusplus
+ #      define VL_EXPORT extern "C" __declspec(dllexport)
+ #    else
+ #      define VL_EXPORT extern __declspec(dllexport)
+ #    endif
+-#  else
++#  elif defined(VL_DLL)
+ #    ifdef __cplusplus
+ #      define VL_EXPORT extern "C" __declspec(dllimport)
+ #    else
+ #      define VL_EXPORT extern __declspec(dllimport)
+ #    endif
++#  else
++#    ifdef __cplusplus
++#      define VL_EXPORT extern "C"
++#    else
++#      define VL_EXPORT extern
++#    endif
+ #  endif
+ #endif
+ 
+ #if defined(VL_COMPILER_LCC) & ! defined(__DOXYGEN__)
+ #  define VL_UNUSED
+ #  define VL_INLINE static __inline
+-#  define snprintf _snprintf
+ #  define isnan _isnan
+ VL_INLINE float fabsf(float x) { return (float) fabs((double) x) ; }
+ #  ifdef VL_BUILD_DLL
+diff --git a/src/theia/CMakeLists.txt b/src/theia/CMakeLists.txt
+index 6830f71..768586d 100644
+--- a/src/theia/CMakeLists.txt
++++ b/src/theia/CMakeLists.txt
+@@ -209,7 +209,6 @@ set(THEIA_LIBRARY_DEPENDENCIES
+   ${SUITESPARSE_LIBRARIES}
+   ${OPENIMAGEIO_LIBRARIES}
+   akaze
+-  flann_cpp
+   statx
+   stlplus3
+   vlfeat