From e3e6a1d23140d3d60b11afefed20a0094efd0ed7 Mon Sep 17 00:00:00 2001
From: Andreas Sturmlechner <asturm@gentoo.org>
Date: Fri, 17 Oct 2025 14:20:26 +0200
Subject: [PATCH] Port PythonInterp -> Python3(REQUIRED COMPONENTS),
 exec_program -> execute_process

Use BUILD_TESTING to avoid building tests if not needed
Requires >=CMake-3.12
Fixes CMP0148 and CMP0153 warnings

Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>
---
 CMakeLists.txt | 20 ++++++++++----------
 Graphite.cmake | 12 ++++++------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d670bd4d..55dac3ca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,5 @@
 cmake_minimum_required(VERSION 3.16)
 include(TestBigEndian)
-find_package(PythonInterp 3.6)
 project(graphite2)
 set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
 if (NOT CMAKE_BUILD_TYPE)
@@ -65,15 +64,14 @@ if (GRAPHITE2_VM_TYPE STREQUAL "direct" AND NOT (CMAKE_COMPILER_IS_GNUCXX OR CMA
 endif()
 message(STATUS "Using vm machine type: ${GRAPHITE2_VM_TYPE}")
 
-if (BUILD_SHARED_LIBS)
-    if (PYTHONINTERP_FOUND)
-        EXEC_PROGRAM(${PYTHON_EXECUTABLE}
-            ARGS -c \"import ctypes\; print(ctypes.sizeof(ctypes.c_void_p)) \"
+if (BUILD_TESTING AND BUILD_SHARED_LIBS)
+    find_package(Python3 3.6 REQUIRED COMPONENTS Interpreter)
+    if (TARGET Python3::Interpreter)
+        execute_process(COMMAND ${Python3_EXECUTABLE}
+            -c "import ctypes; print(ctypes.sizeof(ctypes.c_void_p), end=\"\")"
             OUTPUT_VARIABLE PYTHON_SIZEOF_VOID_P)
-        if (NOT (PYTHON_VERSION_MAJOR GREATER 2 AND PYTHON_VERSION_MINOR GREATER 5))
-            message(WARNING "Python version 3.6 or greater required. Disabling some tests.")
-        elseif ((PYTHON_SIZEOF_VOID_P STREQUAL CMAKE_SIZEOF_VOID_P) AND (NOT GRAPHITE2_NFILEFACE) AND ((NOT GRAPHITE2_SANITIZERS MATCHES "address") OR CMAKE_COMPILER_IS_GNUCXX))
-            set(PYTHON_CTYPES_COMPATBILE TRUE)
+        if ((PYTHON_SIZEOF_VOID_P STREQUAL CMAKE_SIZEOF_VOID_P) AND (NOT GRAPHITE2_NFILEFACE) AND ((NOT GRAPHITE2_SANITIZERS MATCHES "address") OR CMAKE_COMPILER_IS_GNUCXX))
+            set(PYTHON_CTYPES_COMPATIBLE TRUE)
         else ()
             if ((NOT GRAPHITE2_SANITIZERS MATCHES "address") OR CMAKE_COMPILER_IS_GNUCXX)
                 message(WARNING "Python ctypes is incompatible with built DLL. Disabling some tests.")
@@ -83,7 +81,9 @@ if (BUILD_SHARED_LIBS)
 endif()
 
 add_subdirectory(src)
-add_subdirectory(tests)
+if (BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
 add_subdirectory(doc)
 if (NOT GRAPHITE2_NFILEFACE)
     add_subdirectory(gr2fonttest)
diff --git a/Graphite.cmake b/Graphite.cmake
index 02e34903..774d2cac 100644
--- a/Graphite.cmake
+++ b/Graphite.cmake
@@ -83,10 +83,10 @@ function(fonttest TESTNAME FONTFILE)
         add_test(NAME ${TESTNAME} COMMAND $<TARGET_FILE:gr2fonttest> -trace ${PROJECT_BINARY_DIR}/${TESTNAME}.json -log ${PROJECT_BINARY_DIR}/${TESTNAME}.log ${PROJECT_SOURCE_DIR}/fonts/${FONTFILE} -codes ${ARGN})
         set_tests_properties(${TESTNAME} PROPERTIES TIMEOUT 3)
         add_test(NAME ${TESTNAME}Output COMMAND ${CMAKE_COMMAND} -E compare_files ${PROJECT_BINARY_DIR}/${TESTNAME}.log ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}${PLATFORM_TEST_SUFFIX}.log)
-        if ((NOT GRAPHITE2_NTRACING) AND PYTHONINTERP_FOUND)
-            add_test(NAME ${TESTNAME}Debug COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/jsoncmp ${PROJECT_BINARY_DIR}/${TESTNAME}.json ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}.json)
+        if ((NOT GRAPHITE2_NTRACING) AND TARGET Python3::Interpreter)
+            add_test(NAME ${TESTNAME}Debug COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/jsoncmp ${PROJECT_BINARY_DIR}/${TESTNAME}.json ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}.json)
             set_tests_properties(${TESTNAME}Debug  PROPERTIES DEPENDS ${TESTNAME})
-        endif ((NOT GRAPHITE2_NTRACING) AND PYTHONINTERP_FOUND)
+        endif ((NOT GRAPHITE2_NTRACING) AND TARGET Python3::Interpreter)
         set_tests_properties(${TESTNAME}Output PROPERTIES DEPENDS ${TESTNAME})
     endif (NOT GRAPHITE2_NFILEFACE)
 endfunction(fonttest)
@@ -109,9 +109,9 @@ function(cmptest TESTNAME FONTFILE TEXTFILE)
     if (EXISTS ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}${CMAKE_SYSTEM_NAME}.json)
         set(PLATFORM_TEST_SUFFIX ${CMAKE_SYSTEM_NAME})
     endif (EXISTS ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}${CMAKE_SYSTEM_NAME}.json)
-    if (PYTHON_CTYPES_COMPATBILE)
-        add_test(NAME ${TESTNAME} COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/fnttxtrender --graphite_library=$<TARGET_FILE:graphite2> -t ${PROJECT_SOURCE_DIR}/texts/${TEXTFILE} -o ${PROJECT_BINARY_DIR}/${TESTNAME}.json -c ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}${PLATFORM_TEST_SUFFIX}.json ${ARGN} ${PROJECT_SOURCE_DIR}/fonts/${FONTFILE})
+    if (PYTHON_CTYPES_COMPATIBLE)
+        add_test(NAME ${TESTNAME} COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/fnttxtrender --graphite_library=$<TARGET_FILE:graphite2> -t ${PROJECT_SOURCE_DIR}/texts/${TEXTFILE} -o ${PROJECT_BINARY_DIR}/${TESTNAME}.json -c ${PROJECT_SOURCE_DIR}/standards/${TESTNAME}${PLATFORM_TEST_SUFFIX}.json ${ARGN} ${PROJECT_SOURCE_DIR}/fonts/${FONTFILE})
         set_tests_properties(${TESTNAME} PROPERTIES ENVIRONMENT PYTHONPATH=${CMAKE_SOURCE_DIR}/python)
-    endif (PYTHON_CTYPES_COMPATBILE)
+    endif ()
   endif ()
 endfunction(cmptest)
-- 
2.51.0