diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6879c4c..aa4167a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -324,13 +324,18 @@ else()
   if (TARGET flann::flann)
     set(FLANN_LIBRARIES "flann::flann;flann::flann_cpp")
   else()
-    find_package(Flann QUIET)
+    set(FLANN_LIBRARIES "flann::flann_s;flann::flann_cpp_s")
   endif()
+  set(FLANN_FOUND TRUE)
 endif()
 if (NOT FLANN_FOUND OR OpenMVG_USE_INTERNAL_FLANN)
   set(FLANN_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/third_party/flann/src/cpp)
 endif()
 
+# Used together in openMVG/LinearProgramming
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(OSI_CLP_COIN  osi-clp clp osi coinutils  REQUIRED)
+if(0)
 # ==============================================================================
 # CoinUtils
 # ==============================================================================
@@ -391,6 +396,7 @@ if (OpenMVG_USE_INTERNAL_OSI AND OpenMVG_USE_INTERNAL_CLP AND OpenMVG_USE_INTERN
   set_property(TARGET lib_Osi PROPERTY FOLDER OpenMVG/3rdParty/lib_Osi)
   set_property(TARGET lib_OsiClpSolver PROPERTY FOLDER OpenMVG/3rdParty/lib_OsiClpSolver)
 endif()
+endif()
 
 # ==============================================================================
 # Lemon
@@ -402,7 +408,7 @@ if (NOT DEFINED LEMON_INCLUDE_DIR_HINTS)
   set(LEMON_INCLUDE_DIR_HINTS ${CMAKE_CURRENT_SOURCE_DIR}/third_party/lemon)
   set(OpenMVG_USE_INTERNAL_LEMON ON)
 endif()
-find_package(Lemon QUIET)
+find_package(LEMON REQUIRED)
 if (NOT LEMON_FOUND OR OpenMVG_USE_INTERNAL_LEMON)
   set(LEMON_INCLUDE_DIRS
     ${CMAKE_CURRENT_SOURCE_DIR}/third_party/lemon
diff --git a/src/cmakeFindModules/OpenMVGConfig.cmake.in b/src/cmakeFindModules/OpenMVGConfig.cmake.in
index 5a788b5..7a0afdb 100644
--- a/src/cmakeFindModules/OpenMVGConfig.cmake.in
+++ b/src/cmakeFindModules/OpenMVGConfig.cmake.in
@@ -61,7 +61,7 @@ set(CMAKE_MODULE_PATH ${CURRENT_CONFIG_INSTALL_DIR})
 
 # Build the absolute root install directory as a relative path
 get_filename_component(CURRENT_ROOT_INSTALL_DIR
-  ${CMAKE_MODULE_PATH}/../../../ ABSOLUTE)
+  "${CMAKE_CURRENT_LIST_DIR}/../.." ABSOLUTE)
 if (NOT EXISTS ${CURRENT_ROOT_INSTALL_DIR})
   OPENMVG_REPORT_NOT_FOUND(
     "OpenMVG install root: ${CURRENT_ROOT_INSTALL_DIR}, "
@@ -88,11 +88,14 @@ set(OpenMVG_USE_OPENMP "@OpenMVG_USE_OPENMP@")
 
 # Find transitive dependencies if required
 include(CMakeFindDependencyMacro)
+find_dependency(flann CONFIG)
+find_dependency(Ceres CONFIG)
+find_dependency(vlfeat CONFIG)
 if (OpenMVG_USE_OPENMP)
-  find_dependency(OpenMP REQUIRED)
+  find_dependency(OpenMP)
 endif()
 if (NOT OpenMVG_USE_INTERNAL_CEREAL)
-  find_dependency(cereal REQUIRED)
+  find_dependency(cereal CONFIG)
 endif()
 
 # Import exported OpenMVG targets
diff --git a/src/nonFree/sift/CMakeLists.txt b/src/nonFree/sift/CMakeLists.txt
index 402a2d8..b2912ea 100644
--- a/src/nonFree/sift/CMakeLists.txt
+++ b/src/nonFree/sift/CMakeLists.txt
@@ -25,7 +25,9 @@ set(FEATS
   vl/mathop.c
   vl/random.c)
 set_source_files_properties(${FEATS} PROPERTIES LANGUAGE C)
-add_library(vlsift ${FEATS})
+find_package(vlfeat CONFIG REQUIRED)
+add_library(vlsift INTERFACE)
+target_link_libraries(vlsift INTERFACE unofficial::vlfeat::vl)
 install(TARGETS vlsift DESTINATION lib EXPORT openMVG-targets)
 set_property(TARGET vlsift PROPERTY FOLDER OpenMVG/nonFree)
 install(
diff --git a/src/nonFree/sift/SIFT_describer.hpp b/src/nonFree/sift/SIFT_describer.hpp
index cd800b0..9586d9b 100644
--- a/src/nonFree/sift/SIFT_describer.hpp
+++ b/src/nonFree/sift/SIFT_describer.hpp
@@ -18,7 +18,7 @@
 #include <numeric>
 
 extern "C" {
-#include "nonFree/sift/vl/sift.h"
+#include <vl/sift.h>
 }
 
 namespace openMVG {
diff --git a/src/openMVG/exif/sensor_width_database/CMakeLists.txt b/src/openMVG/exif/sensor_width_database/CMakeLists.txt
index 33d9f16..58b4761 100644
--- a/src/openMVG/exif/sensor_width_database/CMakeLists.txt
+++ b/src/openMVG/exif/sensor_width_database/CMakeLists.txt
@@ -2,4 +2,4 @@
 UNIT_TEST(openMVG ParseDatabase "openMVG_testing;${STLPLUS_LIBRARY}")
 
 # Installation rules
-install(FILES sensor_width_camera_database.txt DESTINATION  ${CMAKE_INSTALL_LIBDIR}/openMVG)
+install(FILES sensor_width_camera_database.txt DESTINATION share/openmvg)
diff --git a/src/openMVG/linearProgramming/CMakeLists.txt b/src/openMVG/linearProgramming/CMakeLists.txt
index 3a8a402..24151e9 100644
--- a/src/openMVG/linearProgramming/CMakeLists.txt
+++ b/src/openMVG/linearProgramming/CMakeLists.txt
@@ -15,16 +15,12 @@ target_link_libraries(openMVG_linearProgramming
   PUBLIC
     openMVG_numeric
   PRIVATE
-    ${CLP_LIBRARIES}     # clp + solver wrapper
-    ${COINUTILS_LIBRARY} # container tools
-    ${OSI_LIBRARY}       # generic LP
+    ${OSI_CLP_COIN_LINK_LIBRARIES}
 )
 
 target_include_directories(openMVG_linearProgramming
   PRIVATE
-    ${CLP_INCLUDE_DIRS}
-    ${COINUTILS_INCLUDE_DIRS}
-    ${OSI_INCLUDE_DIRS}
+    ${OSI_CLP_COIN_INCLUDE_DIRS}
   PUBLIC
     $<INSTALL_INTERFACE:include>
 )