refactor: force remote vtk for packaging

* When building the wheel package we should force usage for the remote VTK to ensure a valid linking configuration.

* Wheel builds should be built with `SKBUILD_CONFIGURE_OPTIONS="-DVIENNALS_PACKAGE_PYTHON"`

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.20 FATAL_ERROR)
 project(
   ViennaLS
   LANGUAGES CXX
-  VERSION 3.1.1)
+  VERSION 3.2.0)
 
 # --------------------------------------------------------------------------------------------------------
 # Library options
@@ -16,9 +16,8 @@ option(VIENNALS_STATIC_BUILD "Build dependencies as static libraries" OFF)
 option(VIENNALS_ENABLE_SANITIZER "Enable Sanitizer for debug buidlds" OFF)
 option(VIENNALS_USE_SANITIZER "Enable Sanitizer (Requires GCC or Clang)" OFF)
 
+option(VIENNALS_PACKAGE_PYTHON "Build python bindings with intent to publish wheel" OFF)
 option(VIENNALS_BUILD_PYTHON "Build python bindings" OFF)
-option(VIENNALS_PYTHON_FORCE_VTK
-       "Include VTK in python bindings installation even if present as system dependency" OFF)
 
 option(VIENNALS_BUILD_EXAMPLES "Build examples" OFF)
 option(VIENNALS_BUILD_TESTS "Build tests" OFF)
@@ -28,6 +27,13 @@ option(VIENNALS_BUILD_TESTS "Build tests" OFF)
 # └ See: https://github.com/ViennaTools/ViennaPS/blob/c76e371817a797dfe2800691f00cb93317b731fa/CMakeLists.txt#L30
 # --------------------------------------------------------------------------------------------------------
 
+if(VIENNALS_PACKAGE_PYTHON)
+  message(STATUS "[ViennaLS] Using remote VTK due to 'VIENNALS_PACKAGE_PYTHON', the build will take a long time!")
+
+  set(CPM_DOWNLOAD_ALL ON)
+  set(VIENNALS_BUILD_PYTHON ON)
+endif()
+
 if(VIENNALS_BUILD_PYTHON)
   set(CMAKE_PLATFORM_NO_VERSIONED_SONAME ON)
 endif()

pyproject.toml

@@ -18,4 +18,4 @@ Issues = "https://github.com/ViennaTools/ViennaLS/issues"
 
 [tool.scikit-build]
 build-dir = "build"
-cmake.args = ["-DVIENNALS_BUILD_PYTHON=ON", "-DVIENNALS_PYTHON_FORCE_VTK=ON"]
+cmake.args = ["-DVIENNALS_BUILD_PYTHON=ON"]

python/CMakeLists.txt

@@ -9,18 +9,16 @@ add_custom_target(${PROJECT_NAME} ALL)
 # --------------------------------------------------------------------------------------------------------
 
 set(CMAKE_MACOSX_RPATH ON)
+
+set(CMAKE_BUILD_WITH_INSTALL_RPATH ON)
 set(CMAKE_INSTALL_RPATH_USE_LINK_PATH ON)
 
 if(NOT APPLE)
   list(APPEND CMAKE_INSTALL_RPATH "$ORIGIN")
   list(APPEND CMAKE_INSTALL_RPATH "$ORIGIN/../viennals.libs")
-  list(APPEND CMAKE_BUILD_RPATH "$ORIGIN")
-  list(APPEND CMAKE_BUILD_RPATH "$ORIGIN/../viennals.libs")
 else()
   list(APPEND CMAKE_INSTALL_RPATH "@loader_path")
   list(APPEND CMAKE_INSTALL_RPATH "@loader_path/../viennals.libs")
-  list(APPEND CMAKE_BUILD_RPATH "@loader_path")
-  list(APPEND CMAKE_BUILD_RPATH "@loader_path/../viennals.libs")
 endif()
 
 # --------------------------------------------------------------------------------------------------------
@@ -77,7 +75,7 @@ setup_binding(viennals3d -DVIENNALS_PYTHON_DIMENSION=3)
 
 set(VIENNALS_LIB_FOLDER "${VIENNALS_LIBRARY_OUTPUT_DIR}/viennals.libs")
 
-if(NOT VIENNALS_SYSTEM_VTK OR VIENNALS_PYTHON_FORCE_VTK)
+if(NOT VIENNALS_SYSTEM_VTK OR VIENNALS_PACKAGE_PYTHON)
   setup_vtk_env(${MODULE_NAME} "${VIENNALS_LIB_FOLDER}")
   install(DIRECTORY "${VIENNALS_LIB_FOLDER}" DESTINATION .)
 endif()