early-access version 2853

externals/vcpkg/ports/python3/vcpkg-cmake-wrapper.cmake

@@ -0,0 +1,120 @@
+# For very old ports whose upstream do not properly set the minimum CMake version.
+cmake_policy(SET CMP0012 NEW)
+cmake_policy(SET CMP0057 NEW)
+
+# This prevents the port's python.exe from overriding the Python fetched by
+# vcpkg_find_acquire_program(PYTHON3) and prevents the vcpkg toolchain from
+# stomping on FindPython's default functionality.
+list(REMOVE_ITEM CMAKE_PROGRAM_PATH "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/tools/python3")
+if(@PythonFinder_NO_OVERRIDE@)
+    _find_package(${ARGS})
+    return()
+endif()
+
+# CMake's FindPython's separation of concerns is very muddy. We only want to force vcpkg's Python
+# if the consumer is using the development component. What we don't want to do is break detection
+# of the system Python, which may have certain packages the user expects. But - if the user is
+# embedding Python or using both the development and interpreter components, then we need the
+# interpreter matching vcpkg's Python libraries. Note that the "Development" component implies
+# both "Development.Module" and "Development.Embed"
+if("Development" IN_LIST ARGS OR "Development.Embed" IN_LIST ARGS)
+    set(_PythonFinder_WantInterp TRUE)
+    set(_PythonFinder_WantLibs TRUE)
+elseif("Development.Module" IN_LIST ARGS)
+    if("Interpreter" IN_LIST ARGS)
+        set(_PythonFinder_WantInterp TRUE)
+    endif()
+    set(_PythonFinder_WantLibs TRUE)
+endif()
+
+if(_PythonFinder_WantLibs)
+    find_path(
+        @PythonFinder_PREFIX@_INCLUDE_DIR
+        NAMES "Python.h"
+        PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/include"
+        PATH_SUFFIXES "python@PYTHON_VERSION_MAJOR@.@PYTHON_VERSION_MINOR@"
+        NO_DEFAULT_PATH
+    )
+
+    # Don't set the public facing hint or the finder will be unable to detect the debug library.
+    # Internally, it uses the same value with an underscore prepended.
+    find_library(
+        _@PythonFinder_PREFIX@_LIBRARY_RELEASE
+        NAMES
+        "python@PYTHON_VERSION_MAJOR@@PYTHON_VERSION_MINOR@"
+        "python@PYTHON_VERSION_MAJOR@.@PYTHON_VERSION_MINOR@"
+        PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/lib"
+        NO_DEFAULT_PATH
+    )
+    find_library(
+        _@PythonFinder_PREFIX@_LIBRARY_DEBUG
+        NAMES
+        "python@PYTHON_VERSION_MAJOR@@PYTHON_VERSION_MINOR@_d"
+        "python@PYTHON_VERSION_MAJOR@.@PYTHON_VERSION_MINOR@d"
+        PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/debug/lib"
+        NO_DEFAULT_PATH
+    )
+
+    if(_PythonFinder_WantInterp)
+        find_program(
+            @PythonFinder_PREFIX@_EXECUTABLE
+            NAMES "python" "python@PYTHON_VERSION_MAJOR@.@PYTHON_VERSION_MINOR@"
+            PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/tools/python3"
+            NO_DEFAULT_PATH
+        )
+    endif()
+
+    _find_package(${ARGS})
+
+    if(@VCPKG_LIBRARY_LINKAGE@ STREQUAL static)
+        include(CMakeFindDependencyMacro)
+
+        # Python for Windows embeds the zlib module into the core, so we have to link against it.
+        # This is a separate extension module on Unix-like platforms.
+        if(WIN32)
+            find_dependency(ZLIB)
+            if(TARGET @PythonFinder_PREFIX@::Python)
+                set_property(TARGET @PythonFinder_PREFIX@::Python APPEND PROPERTY INTERFACE_LINK_LIBRARIES ZLIB::ZLIB)
+            endif()
+            if(TARGET @PythonFinder_PREFIX@::Module)
+                set_property(TARGET @PythonFinder_PREFIX@::Module APPEND PROPERTY INTERFACE_LINK_LIBRARIES ZLIB::ZLIB)
+            endif()
+            if(DEFINED @PythonFinder_PREFIX@_LIBRARIES)
+                list(APPEND @PythonFinder_PREFIX@_LIBRARIES ${ZLIB_LIBRARIES})
+            endif()
+        endif()
+
+        if(APPLE)
+            find_dependency(Iconv)
+            find_dependency(Intl)
+            if(TARGET @PythonFinder_PREFIX@::Python)
+                get_target_property(_PYTHON_INTERFACE_LIBS @PythonFinder_PREFIX@::Python INTERFACE_LINK_LIBRARIES)
+                list(REMOVE_ITEM _PYTHON_INTERFACE_LIBS "-liconv" "-lintl")
+                list(APPEND _PYTHON_INTERFACE_LIBS
+                    Iconv::Iconv
+                    "$<IF:$<CONFIG:Debug>,${Intl_LIBRARY_DEBUG},${Intl_LIBRARY_RELEASE}>"
+                )
+                set_property(TARGET @PythonFinder_PREFIX@::Python PROPERTY INTERFACE_LINK_LIBRARIES ${_PYTHON_INTERFACE_LIBS})
+                unset(_PYTHON_INTERFACE_LIBS)
+            endif()
+            if(TARGET @PythonFinder_PREFIX@::Module)
+                get_target_property(_PYTHON_INTERFACE_LIBS @PythonFinder_PREFIX@::Module INTERFACE_LINK_LIBRARIES)
+                list(REMOVE_ITEM _PYTHON_INTERFACE_LIBS "-liconv" "-lintl")
+                list(APPEND _PYTHON_INTERFACE_LIBS
+                    Iconv::Iconv
+                    "$<IF:$<CONFIG:Debug>,${Intl_LIBRARY_DEBUG},${Intl_LIBRARY_RELEASE}>"
+                )
+                set_property(TARGET @PythonFinder_PREFIX@::Module PROPERTY INTERFACE_LINK_LIBRARIES ${_PYTHON_INTERFACE_LIBS})
+                unset(_PYTHON_INTERFACE_LIBS)
+            endif()
+            if(DEFINED @PythonFinder_PREFIX@_LIBRARIES)
+                list(APPEND @PythonFinder_PREFIX@_LIBRARIES "-framework CoreFoundation" ${Iconv_LIBRARIES} ${Intl_LIBRARIES})
+            endif()
+        endif()
+    endif()
+else()
+    _find_package(${ARGS})
+endif()
+
+unset(_PythonFinder_WantInterp)
+unset(_PythonFinder_WantLibs)