[python3] cross compile python3 for android on linux

ports/python3/0017-disable-SOVERSION-for-Android.patch

@@ -0,0 +1,16 @@
+diff --git a/configure.ac b/configure.ac
+index 73ee71c6d2..a62edaebae 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -1153,7 +1153,10 @@
+ 	  LDLIBRARY='libpython$(LDVERSION).so'
+ 	  BLDLIBRARY='-L. -lpython$(LDVERSION)'
+ 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
+-	  INSTSONAME="$LDLIBRARY".$SOVERSION
++	  if test $ac_sys_system != Linux-android
++     then
++         INSTSONAME="$LDLIBRARY".$SOVERSION
++     fi
+ 	  if test "$with_pydebug" != yes
+           then
+ 	      PY3LIBRARY=libpython3.so

ports/python3/0018-explicit-define-ctypes_pythonapi-for-Android.patch

@@ -0,0 +1,13 @@
+
+diff --git a/Lib/ctypes/__init__.py b/Lib/ctypes/__init__.py
+--- a/Lib/ctypes/__init__.py
++++ b/Lib/ctypes/__init__.py
+@@ -460,6 +460,8 @@
+     pythonapi = PyDLL("python dll", None, _sys.dllhandle)
+ elif _sys.platform == "cygwin":
+     pythonapi = PyDLL("libpython%d.%d.dll" % _sys.version_info[:2])
++elif hasattr(_sys, 'getandroidapilevel'):
++    pythonapi = PyDLL("libpython%d.%d.so" % _sys.version_info[:2])
+ else:
+     pythonapi = PyDLL(None)
+

ports/python3/portfile.cmake

@@ -20,6 +20,13 @@ set(PATCHES
     0015-dont-use-WINDOWS-def.patch
 )
 
+if(VCPKG_CROSSCOMPILING AND VCPKG_TARGET_IS_ANDROID)
+    list(APPEND PATCHES
+        0017-disable-SOVERSION-for-Android.patch
+        0018-explicit-define-ctypes_pythonapi-for-Android.patch
+    )
+endif()
+
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
     list(APPEND PATCHES 0002-static-library.patch)
 endif()
@@ -250,6 +257,38 @@ else()
     if(VCPKG_CROSSCOMPILING)
         set(_python_for_build "${CURRENT_HOST_INSTALLED_DIR}/tools/python3/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}")
         list(APPEND OPTIONS "--with-build-python=${_python_for_build}")
+
+        if(VCPKG_TARGET_IS_ANDROID)
+            vcpkg_cmake_get_vars(cmake_vars_file)
+            include("${cmake_vars_file}")
+            cmake_path(GET VCPKG_DETECTED_CMAKE_C_COMPILER PARENT_PATH llvm_dir)
+
+            if(VCPKG_DETECTED_CMAKE_ANDROID_ARCH STREQUAL "arm")
+                set(clang_arch_prefix "armv7a")
+            elseif(VCPKG_DETECTED_CMAKE_ANDROID_ARCH STREQUAL "arm64")
+                set(clang_arch_prefix "aarch64")
+            elseif(VCPKG_DETECTED_CMAKE_ANDROID_ARCH STREQUAL "x86_64")
+                set(clang_arch_prefix "x86_64")
+            elseif(VCPKG_DETECTED_CMAKE_ANDROID_ARCH STREQUAL "x86")
+                set(clang_arch_prefix "i686")
+            endif()
+
+            if(DEFINED clang_arch_prefix)
+                set(clang_c_compiler ${llvm_dir}/${clang_arch_prefix}-linux-android${VCPKG_DETECTED_CMAKE_SYSTEM_VERSION}-clang)
+            else()
+                set(clang_c_compiler ${VCPKG_DETECTED_CMAKE_C_COMPILER})
+            endif()
+
+            list(APPEND OPTIONS 
+                "--build=${VCPKG_DETECTED_CMAKE_HOST_SYSTEM_PROCESSOR}-linux-gnu"
+                "CC=${clang_c_compiler}"
+                "READELF=${llvm_dir}/llvm-readelf"
+                # For CONFIG_SITE property needed while cross-compile: https://docs.python.org/3/using/configure.html#cmdoption-arg-CONFIG_SITE
+                "ac_cv_file__dev_ptmx=yes"
+                "ac_cv_file__dev_ptc=no"
+                "ac_cv_buggy_getaddrinfo=no"
+            )
+        endif()
     else()
         vcpkg_find_acquire_program(PYTHON3)
         list(APPEND OPTIONS "ac_cv_prog_PYTHON_FOR_REGEN=${PYTHON3}")

ports/python3/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "python3",
   "version": "3.11.4",
-  "port-version": 1,
+  "port-version": 2,
   "description": "The Python programming language",
   "homepage": "https://github.com/python/cpython",
   "license": "Python-2.0",
@@ -44,6 +44,11 @@
       "name": "sqlite3",
       "platform": "!(windows & static)"
     },
+    {
+      "name": "vcpkg-cmake-get-vars",
+      "host": true,
+      "platform": "android"
+    },
     {
       "name": "vcpkg-msbuild",
       "host": true,

versions/baseline.json

@@ -6602,7 +6602,7 @@
     },
     "python3": {
       "baseline": "3.11.4",
-      "port-version": 1
+      "port-version": 2
     },
     "qca": {
       "baseline": "2.3.5",

versions/p-/python3.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "96df607e3b806c6c3c877804e3a0ed2dbf1af00a",
+      "version": "3.11.4",
+      "port-version": 2
+    },
     {
       "git-tree": "531061b4485adebb80364473d227b0edf4ee8ed9",
       "version": "3.11.4",