vcpkg/ports/openmvg/fixcmake.patch

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 654bebd..6d1c671 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -39,6 +39,10 @@ option(OpenMVG_USE_OPENCV "Build or not opencv+openMVG samples programs" OFF)
 # ==============================================================================
 option(OpenMVG_USE_OCVSIFT "Add or not OpenCV SIFT in available features" OFF)
 
+if(OpenMVG_BUILD_SHARED AND MSVC)
+  set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+endif(OpenMVG_BUILD_SHARED AND MSVC)
+
 # ==============================================================================
 # OpenMVG version
 # ==============================================================================
@@ -88,11 +92,11 @@ endif()
 # ==============================================================================
 # Check that submodule have been initialized and updated
 # ==============================================================================
-if (NOT EXISTS ${PROJECT_SOURCE_DIR}/dependencies/cereal/include)
-  message(FATAL_ERROR
-    "\n submodule(s) are missing, please update your repository:\n"
-    "  > git submodule update -i\n")
-endif()
+# if (NOT EXISTS ${PROJECT_SOURCE_DIR}/dependencies/cereal/include)
+#   message(FATAL_ERROR
+#     "\n submodule(s) are missing, please update your repository:\n"
+#     "  > git submodule update -i\n")
+# endif()
 
 # ==============================================================================
 # Additional cmake find modules
@@ -184,12 +188,12 @@ if (OpenMVG_BUILD_OPENGL_EXAMPLES)
 endif (OpenMVG_BUILD_OPENGL_EXAMPLES)
 
 # Dependencies install rules
-install(
-  DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/dependencies/
-  DESTINATION include/openMVG_dependencies
-  COMPONENT headers
-  FILES_MATCHING PATTERN "*.hpp" PATTERN "*.h"
-)
+# install(
+#   DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/dependencies/
+#   DESTINATION include/openMVG_dependencies
+#   COMPONENT headers
+#   FILES_MATCHING PATTERN "*.hpp" PATTERN "*.h"
+# )
 
 # ==============================================================================
 # --END-- SUBMODULE CONFIGURATION
diff --git a/src/cmakeFindModules/FindClp.cmake b/src/cmakeFindModules/FindClp.cmake
index c997b87..74c3aae 100644
--- a/src/cmakeFindModules/FindClp.cmake
+++ b/src/cmakeFindModules/FindClp.cmake
@@ -51,8 +51,8 @@ IF(EXISTS "${CLP_DIR}" AND NOT "${CLP_DIR}" STREQUAL "")
         SET(CLP_INCLUDE_DIR ${CLP_DIR})
 
         FIND_LIBRARY(CLP_LIBRARY NAMES Clp)
-        FIND_LIBRARY(CLPSOLVER_LIBRARY NAMES ClpSolver)
-        FIND_LIBRARY(OSICLP_LIBRARY NAMES OsiClp)
+        FIND_LIBRARY(CLPSOLVER_LIBRARY NAMES ClpSolver Clp)
+        FIND_LIBRARY(OSICLP_LIBRARY NAMES OsiClp Clp)
 
         # locate Clp libraries
         IF(DEFINED CLP_LIBRARY AND DEFINED CLPSOLVER_LIBRARY AND DEFINED OSICLP_LIBRARY)
diff --git a/src/openMVG/matching/CMakeLists.txt b/src/openMVG/matching/CMakeLists.txt
index 80b1fe6..cb396c7 100644
--- a/src/openMVG/matching/CMakeLists.txt
+++ b/src/openMVG/matching/CMakeLists.txt
@@ -38,7 +38,7 @@ target_link_libraries(openMVG_matching
     openMVG_features
     Threads::Threads
 )
-if (NOT DEFINED OpenMVG_USE_INTERNAL_FLANN)
+if (NOT OpenMVG_USE_INTERNAL_FLANN)
 target_link_libraries(openMVG_matching
   PUBLIC
     ${FLANN_LIBRARIES}
diff --git a/src/third_party/CMakeLists.txt b/src/third_party/CMakeLists.txt
index 816a941..f0b7145 100644
--- a/src/third_party/CMakeLists.txt
+++ b/src/third_party/CMakeLists.txt
@@ -18,7 +18,7 @@ add_subdirectory(stlplus3)
 set(STLPLUS_LIBRARY openMVG_stlplus PARENT_SCOPE)
 
 # Add graph library
-if(DEFINED OpenMVG_USE_INTERNAL_LEMON)
+if(OpenMVG_USE_INTERNAL_LEMON)
   add_subdirectory(lemon)
   set_property(TARGET openMVG_lemon PROPERTY FOLDER OpenMVG/3rdParty/lemon)
   set_property(TARGET check PROPERTY FOLDER OpenMVG/3rdParty/lemon)
@@ -68,7 +68,7 @@ endif (NOT TIFF_FOUND)
 add_subdirectory(vectorGraphics)
 
 # Add ceres-solver (A Nonlinear Least Squares Minimizer)
-if (DEFINED OpenMVG_USE_INTERNAL_CERES)
+if (OpenMVG_USE_INTERNAL_CERES)
   add_subdirectory(cxsparse)
   add_subdirectory(ceres-solver)
   set_property(TARGET openMVG_cxsparse PROPERTY FOLDER OpenMVG/3rdParty/ceres)
@@ -76,7 +76,7 @@ if (DEFINED OpenMVG_USE_INTERNAL_CERES)
 endif()
 
 # Add an Approximate Nearest Neighbor library
-if (DEFINED OpenMVG_USE_INTERNAL_FLANN)
+if (OpenMVG_USE_INTERNAL_FLANN)
   set(FLANN_INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/include/openMVG/third_party/flann/src/cpp)
   add_subdirectory(flann)
 endif()
@@ -90,7 +90,7 @@ add_subdirectory(fast)
 ##
 # Install Header only libraries if necessary
 ##
-if (DEFINED OpenMVG_USE_INTERNAL_EIGEN)
+if (OpenMVG_USE_INTERNAL_EIGEN)
   #Configure Eigen install
   set(EIGEN_INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/include/openMVG/third_party/eigen)
   add_subdirectory(eigen)