[netgen] Optional features to reduce dependencies (#37950)

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- [x] Changes comply with the [maintainer
guide](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/contributing/maintainer-guide.md).
- ~~[ ] SHA512s are updated for each updated download.~~
- ~~[ ] The "supports" clause reflects platforms that may be fixed by
this new version.~~
- ~~[ ] Any fixed [CI
baseline](https://github.com/microsoft/vcpkg/blob/master/scripts/ci.baseline.txt)
entries are removed from that file.~~
- ~~[ ] Any patches that are no longer applied are deleted from the
port's directory.~~
- [x] The version database is fixed by rerunning `./vcpkg x-add-version
--all` and committing the result.
- [x] Only one version is added to each modified port's versions file.


Also:
- fixes Android compilation which wasn't tested the last time this port
was modified
- Exclude `uwp` which was indirectly excluded by another optional
dependency

---------

Co-authored-by: Kai Pastor <dg0yt@darc.de>

ports/netgen/cross-build.patch

@@ -0,0 +1,64 @@
+diff --git a/libsrc/core/exception.cpp b/libsrc/core/exception.cpp
+index 9c99a138..2d5a1ede 100644
+--- a/libsrc/core/exception.cpp
++++ b/libsrc/core/exception.cpp
+@@ -36,7 +36,7 @@ namespace ngcore
+ 
+ 
+ // ********* STUFF FOR GETBACKTRACE ***************************
+-#if defined __GNUC__ && !defined __EMSCRIPTEN__
++#if defined __GNUC__ && !defined __EMSCRIPTEN__ && !defined __ANDROID__
+ 
+ #include <execinfo.h>
+ #include <string.h>
+diff --git a/libsrc/core/simd.hpp b/libsrc/core/simd.hpp
+index d5a6341f..5f07a6d3 100644
+--- a/libsrc/core/simd.hpp
++++ b/libsrc/core/simd.hpp
+@@ -28,7 +28,7 @@
+ #include "simd_avx512.hpp"
+ #endif
+ 
+-#ifdef __aarch64__
++#if defined __aarch64__ && !defined __ANDROID__
+ #include "simd_arm64.hpp"
+ #endif
+ 
+diff --git a/libsrc/core/utils.hpp b/libsrc/core/utils.hpp
+index 79d919c0..1318debf 100644
+--- a/libsrc/core/utils.hpp
++++ b/libsrc/core/utils.hpp
+@@ -74,7 +74,7 @@ namespace ngcore
+ #elif defined(__EMSCRIPTEN__)
+     return std::chrono::high_resolution_clock::now().time_since_epoch().count();
+ #else
+-#warning "Unsupported CPU architecture"
++#pragma message ( "Unsupported CPU architecture" )
+     return 0;
+ #endif
+   }
+diff --git a/rules/CMakeLists.txt b/rules/CMakeLists.txt
+index 2c281ca3..e2982f28 100644
+--- a/rules/CMakeLists.txt
++++ b/rules/CMakeLists.txt
+@@ -1,14 +1,14 @@
+ # this file is included from the parent directory (otherwise generated source files are not recognized properly by cmake)
+ 
+ # generate .cpp files containing the string of the .rls meshing rule files
+-if(EMSCRIPTEN)
+-  add_custom_command(OUTPUT makerls
+-    COMMAND g++ ${CMAKE_CURRENT_SOURCE_DIR}/rules/makerlsfile.cpp -o ${CMAKE_CURRENT_BINARY_DIR}/makerls
+-    )
+-  set(rules_command ${CMAKE_BINARY_DIR}/makerls)
+-else(EMSCRIPTEN)
++if(MAKERLS_EXECUTABLE)
++  add_executable(makerls IMPORTED)
++  set_target_properties(makerls PROPERTIES IMPORTED_LOCATION "${MAKERLS_EXECUTABLE}")
++  set(rules_command makerls)
++else()
+   add_executable(makerls rules/makerlsfile.cpp)
+   set(rules_command makerls)
++  install(TARGETS makerls DESTINATION ${NG_INSTALL_DIR} COMPONENT netgen)
+ endif()
+ 
+ set(rules

ports/netgen/portfile.cmake

@@ -14,8 +14,10 @@ vcpkg_from_github(
       add_filesystem.patch
       occ-78.patch
       142.diff
+      cross-build.patch
 )
 
+set(OPTIONS "")
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
   list(APPEND OPTIONS 
     "-DNGLIB_LIBRARY_TYPE=STATIC"
@@ -26,9 +28,17 @@ if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
   string(APPEND VCPKG_CXX_FLAGS " -DNGSTATIC_BUILD")
 endif()
 
+if(VCPKG_CROSSCOMPILING)
+  list(APPEND OPTIONS "-DMAKERLS_EXECUTABLE=${CURRENT_HOST_INSTALLED_DIR}/tools/${PORT}/makerls${VCPKG_HOST_EXECUTABLE_SUFFIX}")
+endif()
+
 vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
     FEATURES
         python   USE_PYTHON
+        cgns     USE_CGNS
+        mpeg     USE_MPEG
+        jpeg     USE_JPEG
+        occ      USE_OCC
 )
 
 vcpkg_cmake_configure(
@@ -36,10 +46,6 @@ vcpkg_cmake_configure(
     SOURCE_PATH "${SOURCE_PATH}"
     OPTIONS  ${OPTIONS}
       ${FEATURE_OPTIONS}
-      -DUSE_JPEG=ON
-      -DUSE_CGNS=ON
-      -DUSE_OCC=ON
-      -DUSE_MPEG=ON
       -DUSE_SPDLOG=OFF # will be vendored otherwise
       -DUSE_GUI=OFF
       -DPREFER_SYSTEM_PYBIND11=ON
@@ -62,31 +68,38 @@ vcpkg_cmake_install()
 vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/netgen)
 vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE")
 
+if(NOT VCPKG_CROSSCOMPILING)
+  vcpkg_copy_tools(TOOL_NAMES makerls AUTO_CLEAN)
+endif()
+
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
     file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/bin" "${CURRENT_PACKAGES_DIR}/debug/bin")
 endif()
 
+if(USE_OCC)
+  vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/nglib.h" "define NGLIB\n" "define NGLIB\n#define OCCGEOMETRY\n")
+endif()
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
   vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/nglib.h" "defined(NGSTATIC_BUILD)" "1")
-  vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/nglib.h" "define NGLIB" "define NGLIB\n#define OCCGEOMETRY\n#define JPEGLIB\n#define FFMPEG\n")
   vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/core/ngcore_api.hpp" "!defined(NGSTATIC_BUILD)" "0")
 endif()
 
 set(config_file "${CURRENT_PACKAGES_DIR}/share/netgen/NetgenConfig.cmake")
 file(READ "${config_file}" contents)
 string(REPLACE "${SOURCE_PATH}" "NOT-USABLE" contents "${contents}")
-string(REGEX REPLACE "\\\$<\\\$<CONFIG:Release>:([^>]+)>" "\\1" contents "${contents}")
-string(REPLACE "\${NETGEN_CMAKE_DIR}/../" "\${NETGEN_CMAKE_DIR}/../../" contents "${contents}")
+string(REPLACE [[${NETGEN_CMAKE_DIR}/../../..]] [[${NETGEN_CMAKE_DIR}/../..]] contents "${contents}")
+string(REPLACE [[lib/cmake/netgen]] [[share/netgen]] contents "${contents}")
+string(REPLACE [[$<CONFIG:Release>:]] [[$<$<NOT:$<CONFIG:DEBUG>>:]] contents "${contents}")
 if(NOT VCPKG_BUILD_TYPE)
-  string(REPLACE "/lib" "$<$<CONFIG:DEBUG>:/debug>/lib" contents "${contents}")
+  string(REPLACE [[/lib/]] [[$<$<CONFIG:DEBUG>:/debug>/lib/]] contents "${contents}")
+  string(REPLACE [[optimized;${VCPKG_IMPORT_PREFIX}$<$<CONFIG:DEBUG>:/debug>/lib/]] [[optimized;${VCPKG_IMPORT_PREFIX}/lib/]] contents "${contents}")
+  string(REPLACE [[debug;${VCPKG_IMPORT_PREFIX}/debug$<$<CONFIG:DEBUG>:/debug>/lib/]] [[debug;${VCPKG_IMPORT_PREFIX}/debug/lib/]] contents "${contents}")
 endif()
-string(REGEX REPLACE "$<CONFIG:Release>:([^>]+)>" "\\1" contents "${contents}")
 file(WRITE "${config_file}" "${contents}")
-vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/share/netgen/NetgenConfig.cmake" "${SOURCE_PATH}" "NOT-USABLE")
 
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
 
 if("python" IN_LIST FEATURES)
-  vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/${PYTHON3_SITE}/netgen/config.py" "CMAKE_INSTALL_PREFIX[^\n]+" "")
+  vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/${PYTHON3_SITE}/netgen/config.py" "CMAKE_INSTALL_PREFIX  = \"${CURRENT_PACKAGES_DIR}" "CMAKE_INSTALL_PREFIX_NOT_USABLE = \"")
 endif()

ports/netgen/vcpkg.json

@@ -1,25 +1,15 @@
 {
   "name": "netgen",
   "version": "6.2.2401",
+  "port-version": 1,
   "description": "NETGEN is an automatic 3d tetrahedral mesh generator. It accepts input from constructive solid geometry (CSG) or boundary representation (BRep) from STL file format. The connection to a geometry kernel allows the handling of IGES and STEP files. NETGEN contains modules for mesh optimization and hierarchical mesh refinement.",
   "homepage": "https://ngsolve.org/",
   "license": "LGPL-2.1-or-later",
   "supports": "arm64 | x64",
   "dependencies": [
     {
-      "name": "cgns",
-      "default-features": false
-    },
-    {
-      "name": "ffmpeg",
-      "default-features": false,
-      "features": [
-        "avcodec"
-      ]
-    },
-    "libjpeg-turbo",
-    {
-      "name": "opencascade",
+      "name": "netgen",
+      "host": true,
       "default-features": false
     },
     {
@@ -33,6 +23,42 @@
     "zlib"
   ],
   "features": {
+    "cgns": {
+      "description": "CGNS file read/write support",
+      "dependencies": [
+        {
+          "name": "cgns",
+          "default-features": false
+        }
+      ]
+    },
+    "jpeg": {
+      "description": "enable snapshots using library libjpeg",
+      "dependencies": [
+        "libjpeg-turbo"
+      ]
+    },
+    "mpeg": {
+      "description": "enable video recording with FFmpeg",
+      "dependencies": [
+        {
+          "name": "ffmpeg",
+          "default-features": false,
+          "features": [
+            "avcodec"
+          ]
+        }
+      ]
+    },
+    "occ": {
+      "description": "build with OpenCascade geometry kernel interface",
+      "dependencies": [
+        {
+          "name": "opencascade",
+          "default-features": false
+        }
+      ]
+    },
     "python": {
       "description": "Build python bindings",
       "dependencies": [

scripts/test_ports/vcpkg-ci-netgen/portfile.cmake

@@ -0,0 +1 @@
+set(VCPKG_POLICY_EMPTY_PACKAGE enabled)

scripts/test_ports/vcpkg-ci-netgen/vcpkg.json

@@ -0,0 +1,17 @@
+{
+  "name": "vcpkg-ci-netgen",
+  "version-string": "ci",
+  "description": "Force non-default features of netgen within vcpkg CI",
+  "homepage": "https://github.com/microsoft/vcpkg",
+  "dependencies": [
+    {
+      "name": "netgen",
+      "features": [
+        "cgns",
+        "jpeg",
+        "mpeg",
+        "occ"
+      ]
+    }
+  ]
+}

versions/baseline.json

@@ -6094,7 +6094,7 @@
     },
     "netgen": {
       "baseline": "6.2.2401",
-      "port-version": 0
+      "port-version": 1
     },
     "nethost": {
       "baseline": "8.0.3",

versions/n-/netgen.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "5f32bd93d58e5c5057f30d3564fa0a9b808498d6",
+      "version": "6.2.2401",
+      "port-version": 1
+    },
     {
       "git-tree": "289792b9ef5239988ae4c6a418fadfb59fadda5f",
       "version": "6.2.2401",