cmake: Use FindPython3. (#7019)

`FindPythonInterp` has been deprecated for a long time and is more verbal about that deprecation now. The build system no longer uses `PYTHON_EXECUTABLE` but instead uses `Python3_EXECUTABLE`.
2025-04-25 10:05:32 +00:00 · 2023-11-27 17:20:21 +07:00 · 2023-11-27 17:20:21 +07:00 · 9d1ceab1f2
commit 9d1ceab1f2
parent b5e8f59eae
10 changed files with 18 additions and 18 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -153,8 +153,8 @@ list(APPEND Z3_COMPONENT_CXX_DEFINES $<$<CONFIG:RelWithDebInfo>:_EXTERNAL_RELEAS
 ################################################################################
 # Find Python
 ################################################################################
-find_package(PythonInterp 3 REQUIRED)
-message(STATUS "PYTHON_EXECUTABLE: ${PYTHON_EXECUTABLE}")
+find_package(Python3 REQUIRED COMPONENTS Interpreter)
+message(STATUS "Python3_EXECUTABLE: ${Python3_EXECUTABLE}")

 ################################################################################
 # Target architecture detection
--- a/README-CMake.md
+++ b/README-CMake.md
@ -277,7 +277,7 @@ The following useful options can be passed to CMake whilst configuring.
 * ``CMAKE_INSTALL_PYTHON_PKG_DIR`` - STRING. The path to install the z3 python bindings. This can be relative (to ``CMAKE_INSTALL_PREFIX``) or absolute.
 * ``CMAKE_INSTALL_Z3_CMAKE_PACKAGE_DIR`` - STRING. The path to install CMake package files (e.g. ``/usr/lib/cmake/z3``).
 * ``CMAKE_INSTALL_API_BINDINGS_DOC`` - STRING. The path to install documentation for API bindings.
-* ``PYTHON_EXECUTABLE`` - STRING. The python executable to use during the build.
+* ``Python3_EXECUTABLE`` - STRING. The python executable to use during the build.
 * ``Z3_ENABLE_TRACING_FOR_NON_DEBUG`` - BOOL. If set to ``TRUE`` enable tracing in non-debug builds, if set to ``FALSE`` disable tracing in non-debug builds. Note in debug builds tracing is always enabled.
 * ``Z3_BUILD_LIBZ3_SHARED`` - BOOL. If set to ``TRUE`` build libz3 as a shared library otherwise build as a static library.
 * ``Z3_ENABLE_EXAMPLE_TARGETS`` - BOOL. If set to ``TRUE`` add the build targets for building the API examples.
--- a/cmake/z3_add_component.cmake
+++ b/cmake/z3_add_component.cmake
@ -116,7 +116,7 @@ macro(z3_add_component component_name)
    set(_full_output_file_path "${CMAKE_CURRENT_BINARY_DIR}/${_output_file}")
    message(STATUS "Adding rule to generate \"${_output_file}\"")
    add_custom_command(OUTPUT "${_output_file}"
-      COMMAND "${PYTHON_EXECUTABLE}" "${PROJECT_SOURCE_DIR}/scripts/pyg2hpp.py" "${_full_pyg_file_path}" "${CMAKE_CURRENT_BINARY_DIR}"
+      COMMAND "${Python3_EXECUTABLE}" "${PROJECT_SOURCE_DIR}/scripts/pyg2hpp.py" "${_full_pyg_file_path}" "${CMAKE_CURRENT_BINARY_DIR}"
      MAIN_DEPENDENCY "${_full_pyg_file_path}"
      DEPENDS "${PROJECT_SOURCE_DIR}/scripts/pyg2hpp.py"
              ${Z3_GENERATED_FILE_EXTRA_DEPENDENCIES}
@ -275,7 +275,7 @@ macro(z3_add_install_tactic_rule)
  string(REPLACE ";" "\n" _tactic_header_files "${_tactic_header_files}")
  file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/install_tactic.deps" ${_tactic_header_files})
  add_custom_command(OUTPUT "install_tactic.cpp"
-    COMMAND "${PYTHON_EXECUTABLE}"
+    COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/mk_install_tactic_cpp.py"
    "${CMAKE_CURRENT_BINARY_DIR}"
    "${CMAKE_CURRENT_BINARY_DIR}/install_tactic.deps"
@ -313,7 +313,7 @@ macro(z3_add_memory_initializer_rule)
  endforeach()

  add_custom_command(OUTPUT "mem_initializer.cpp"
-    COMMAND "${PYTHON_EXECUTABLE}"
+    COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/mk_mem_initializer_cpp.py"
    "${CMAKE_CURRENT_BINARY_DIR}"
    ${_mem_init_finalize_headers}
@ -349,7 +349,7 @@ macro(z3_add_gparams_register_modules_rule)
  unset(_component_register_module_header_files)

  add_custom_command(OUTPUT "gparams_register_modules.cpp"
-    COMMAND "${PYTHON_EXECUTABLE}"
+    COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/mk_gparams_register_modules_cpp.py"
    "${CMAKE_CURRENT_BINARY_DIR}"
    ${_register_module_header_files}
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@ -58,7 +58,7 @@ endif()

 add_custom_target(api_docs ${ALWAYS_BUILD_DOCS_ARG}
  COMMAND
-  "${PYTHON_EXECUTABLE}" "${MK_API_DOC_SCRIPT}"
+  "${Python3_EXECUTABLE}" "${MK_API_DOC_SCRIPT}"
  --build "${PROJECT_BINARY_DIR}"
  --doxygen-executable "${DOXYGEN_EXECUTABLE}"
  --output-dir "${DOC_DEST_DIR}"
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@ -217,7 +217,7 @@ if (MSVC)
  set(dll_module_exports_file "${CMAKE_CURRENT_BINARY_DIR}/api_dll.def")
  add_custom_command(OUTPUT "${dll_module_exports_file}"
    COMMAND
-      "${PYTHON_EXECUTABLE}"
+      "${Python3_EXECUTABLE}"
      "${PROJECT_SOURCE_DIR}/scripts/mk_def_file.py"
      "${dll_module_exports_file}"
      "libz3"
--- a/src/api/CMakeLists.txt
+++ b/src/api/CMakeLists.txt
@ -18,7 +18,7 @@ foreach (gen_file ${generated_files})
 endforeach()

 add_custom_command(OUTPUT ${generated_files}
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
  "${PROJECT_SOURCE_DIR}/scripts/update_api.py"
  ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
  "--api_output_dir"
--- a/src/api/dotnet/CMakeLists.txt
+++ b/src/api/dotnet/CMakeLists.txt
@ -9,7 +9,7 @@ set(VER_TWEAK "${Z3_VERSION_TWEAK}")
 # Generate Native.cs
 set(Z3_DOTNET_NATIVE_FILE "${CMAKE_CURRENT_BINARY_DIR}/Native.cs")
 add_custom_command(OUTPUT "${Z3_DOTNET_NATIVE_FILE}"
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/update_api.py"
    ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
    "--dotnet-output-dir"
@ -25,7 +25,7 @@ add_custom_command(OUTPUT "${Z3_DOTNET_NATIVE_FILE}"
 # Generate Enumerations.cs
 set(Z3_DOTNET_CONST_FILE "${CMAKE_CURRENT_BINARY_DIR}/Enumerations.cs")
 add_custom_command(OUTPUT "${Z3_DOTNET_CONST_FILE}"
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/mk_consts_files.py"
    ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
    "--dotnet-output-dir"
--- a/src/api/java/CMakeLists.txt
+++ b/src/api/java/CMakeLists.txt
@ -16,7 +16,7 @@ set(Z3_JAVA_PACKAGE_NAME "com.microsoft.z3")
 set(Z3_JAVA_NATIVE_JAVA "${CMAKE_CURRENT_BINARY_DIR}/Native.java")
 set(Z3_JAVA_NATIVE_CPP "${CMAKE_CURRENT_BINARY_DIR}/Native.cpp")
 add_custom_command(OUTPUT "${Z3_JAVA_NATIVE_JAVA}" "${Z3_JAVA_NATIVE_CPP}"
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/update_api.py"
    ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
    "--java-input-dir"
@ -74,7 +74,7 @@ foreach (enum_file ${Z3_JAVA_ENUMERATION_PACKAGE_FILES})
  )
 endforeach()
 add_custom_command(OUTPUT ${Z3_JAVA_ENUMERATION_PACKAGE_FILES_FULL_PATH}
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/mk_consts_files.py"
    ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
    "--java-output-dir"
--- a/src/api/python/CMakeLists.txt
+++ b/src/api/python/CMakeLists.txt
@ -33,7 +33,7 @@ endforeach()

 # Generate z3core.py
 add_custom_command(OUTPUT "${z3py_bindings_build_dest}/z3/z3core.py"
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/update_api.py"
    ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
    "--z3py-output-dir"
@ -49,7 +49,7 @@ list(APPEND build_z3_python_bindings_target_depends "${z3py_bindings_build_dest}

 # Generate z3consts.py
 add_custom_command(OUTPUT "${z3py_bindings_build_dest}/z3/z3consts.py"
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
    "${PROJECT_SOURCE_DIR}/scripts/mk_consts_files.py"
    ${Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN}
    "--z3py-output-dir"
@ -96,7 +96,7 @@ if (Z3_INSTALL_PYTHON_BINDINGS)
  if (NOT DEFINED CMAKE_INSTALL_PYTHON_PKG_DIR)
    message(STATUS "CMAKE_INSTALL_PYTHON_PKG_DIR not set. Trying to guess")
    execute_process(
-      COMMAND "${PYTHON_EXECUTABLE}" "-c"
+      COMMAND "${Python3_EXECUTABLE}" "-c"
        "import sysconfig; print(sysconfig.get_path('purelib'))"
      RESULT_VARIABLE exit_code
      OUTPUT_VARIABLE CMAKE_INSTALL_PYTHON_PKG_DIR
--- a/src/ast/pattern/CMakeLists.txt
+++ b/src/ast/pattern/CMakeLists.txt
@ -7,7 +7,7 @@ if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/database.h")
 endif()

 add_custom_command(OUTPUT "database.h"
-  COMMAND "${PYTHON_EXECUTABLE}"
+  COMMAND "${Python3_EXECUTABLE}"
          "${PROJECT_SOURCE_DIR}/scripts/mk_pat_db.py"
          "${CMAKE_CURRENT_SOURCE_DIR}/database.smt2"
          "${CMAKE_CURRENT_BINARY_DIR}/database.h"