qt5base-lts/cmake/QtAutoDetect.cmake
Leander Beernaert ccc581c9fd Add auto detection routines for android
Add QtAutoDectect cmake which has routines to handle the vcpkg detection
as well as set up some android configuration parameters. The latter will
contribute towards keeping the cmake configuration commands shorter when
targeting android.

Change-Id: I721291c8dce39b5c298565a46867ddcab2df90e8
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-27 13:45:58 +00:00

58 lines
2.3 KiB
CMake

#
# Collection of auto dection routines to improve the user eperience when
# building Qt from source.
#
function(qt_auto_detect_android)
if(DEFINED CMAKE_TOOLCHAIN_FILE AND NOT DEFINED QT_AUTODETECT_ANDROID)
file(READ ${CMAKE_TOOLCHAIN_FILE} toolchain_file_content OFFSET 0 LIMIT 80)
string(FIND ${toolchain_file_content} "The Android Open Source Project" find_result REVERSE)
if (NOT ${find_result} EQUAL -1)
set(android_detected TRUE)
else()
set(android_detected FALSE)
endif()
if(android_detected)
message(STATUS "Android toolchain file detected, checking configuration defaults...")
if(NOT DEFINED ANDROID_NATIVE_API_LEVEL)
message(STATUS "ANDROID_NATIVE_API_LEVEL was not specified, using API level 21 as default")
set(ANDROID_NATIVE_API_LEVEL 21 CACHE STRING "")
endif()
if(NOT DEFINED ANDROID_STL)
set(ANDROID_STL "c++_shared" CACHE STRING "")
endif()
endif()
set(QT_AUTODETECT_ANDROID ${android_detected} CACHE STRING "")
elseif (QT_AUTODETECT_ANDROID)
message(STATUS "Android toolchain file detected")
endif()
endfunction()
function(qt_auto_detect_vpckg)
if(DEFINED ENV{VCPKG_ROOT})
set(vcpkg_toolchain_file "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
get_filename_component(vcpkg_toolchain_file "${vcpkg_toolchain_file}" ABSOLUTE)
if(DEFINED CMAKE_TOOLCHAIN_FILE)
get_filename_component(supplied_toolchain_file "${CMAKE_TOOLCHAIN_FILE}" ABSOLUTE)
if(NOT supplied_toolchain_file STREQUAL vcpkg_toolchain_file)
set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE "${CMAKE_TOOLCHAIN_FILE}" CACHE STRING "")
endif()
unset(supplied_toolchain_file)
endif()
set(CMAKE_TOOLCHAIN_FILE "${vcpkg_toolchain_file}" CACHE STRING "" FORCE)
message(STATUS "Using vcpkg from $ENV{VCPKG_ROOT}")
if(DEFINED ENV{VCPKG_DEFAULT_TRIPLET} AND NOT DEFINED VCPKG_TARGET_TRIPLET)
set(VCPKG_TARGET_TRIPLET "$ENV{VCPKG_DEFAULT_TRIPLET}" CACHE STRING "")
message(STATUS "Using vcpkg triplet ${VCPKG_TARGET_TRIPLET}")
endif()
unset(vcpkg_toolchain_file)
endif()
endfunction()
qt_auto_detect_android()
qt_auto_detect_vpckg()