vcpkg-fix-cgns-link.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e5021d5..9d2909e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -510,15 +510,10 @@ endif(ENABLE_CPP_CORE_GUIDELINES_CHECK)
 
 add_library(netgen_cgns INTERFACE)
 if(USE_CGNS)
-    find_library( CGNS_LIBRARY NAMES cgns cgnsdll )
-    find_path( CGNS_INCLUDE_DIR cgnslib.h )
+    find_package(cgns CONFIG REQUIRED)
     target_compile_definitions(netgen_cgns INTERFACE NG_CGNS)
-    target_include_directories(netgen_cgns INTERFACE ${CGNS_INCLUDE_DIR})
-    target_link_libraries(netgen_cgns INTERFACE ${CGNS_LIBRARY})
-    if(NOT WIN32 AND NOT APPLE) # hdf5 is statically linked into cgns in Windows amd MacOS binaries
-        find_library(HDF5_LIBRARY NAMES hdf5 hdf5_serial)
-        target_link_libraries(netgen_cgns INTERFACE ${HDF5_LIBRARY})
-    endif(NOT WIN32 AND NOT APPLE)
+    target_link_libraries(netgen_cgns INTERFACE
+        $<IF:$<TARGET_EXISTS:CGNS::cgns_shared>,CGNS::cgns_shared,CGNS::cgns_static>)
 endif(USE_CGNS)
 
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/netgen_version.hpp ${CMAKE_CURRENT_BINARY_DIR}/netgen_config.hpp DESTINATION ${NG_INSTALL_DIR_INCLUDE}/include COMPONENT netgen_devel)
diff --git a/cmake/NetgenConfig.cmake.in b/cmake/NetgenConfig.cmake.in
index 477ed214..05630cac 100644
--- a/cmake/NetgenConfig.cmake.in
+++ b/cmake/NetgenConfig.cmake.in
@@ -70,6 +70,11 @@ set(NETGEN_USE_NUMA @USE_NUMA@)
 set(NETGEN_PYTHON_RPATH "@NETGEN_PYTHON_RPATH@")
 set(NETGEN_RPATH_TOKEN "@NG_RPATH_TOKEN@")
 
+if(NETGEN_USE_CGNS)
+  include(CMakeFindDependencyMacro)
+  find_dependency(cgns CONFIG)
+endif()
+
 set(NETGEN_INSTALL_DIR_PYTHON @NG_INSTALL_DIR_PYTHON@)
 set(NETGEN_INSTALL_DIR_BIN @NG_INSTALL_DIR_BIN@)
 set(NETGEN_INSTALL_DIR_LIB @NG_INSTALL_DIR_LIB@)