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Android: Always set CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION 

When this variable is not set by the user or toolchain file, set it to
the default selected.  This will be useful for client code that needs to
pass the value to an external tool that needs to find the same toolchain
in the NDK.  Leave it empty for a standalone toolchain.

Suggested-by: Ruslan Baratov <ruslan_baratov@yahoo.com>
This commit is contained in:
Brad King 2016-11-11 14:50:50 -05:00
parent 5cfc2e926a
commit 236d6244a0
6 changed files with 26 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Help/manual/cmake-toolchains.7.rst
View File

@ -387,7 +387,7 @@ Configure use of an Android NDK with the following variables:
:variable:`CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION`
Set to the version of the NDK toolchain to be selected as the compiler.
If not specified, the latest available GCC toolchain will be used.
If not specified, the default will be the latest available GCC toolchain.
:variable:`CMAKE_ANDROID_STL_TYPE`
Set to specify which C++ standard library to use. If not specified,

3
Help/variable/CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION.rst
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@ -11,3 +11,6 @@ as the compiler. The variable must be set to one of these forms:
A toolchain of the requested version will be selected automatically to
match the ABI named in the :variable:`CMAKE_ANDROID_ARCH_ABI` variable.
If not specified, the default will be a value that selects the latest
available GCC toolchain.

12
Modules/Platform/Android/Determine-Compiler-NDK.cmake
View File

@ -52,6 +52,7 @@ unset(_ANDROID_CONFIG_MK_PATTERNS)
# Find the newest toolchain version matching the ABI.
set(_ANDROID_TOOL_NAME "")
set(_ANDROID_TOOL_VERS 0)
set(_ANDROID_TOOL_VERS_NDK "")
set(_ANDROID_TOOL_SETUP_MK "")
foreach(config_mk IN LISTS _ANDROID_CONFIG_MKS)
# Check that the toolchain matches the ABI.
@ -62,18 +63,21 @@ foreach(config_mk IN LISTS _ANDROID_CONFIG_MKS)
unset(_ANDROID_TOOL_ABIS)
# Check the version.
if("${config_mk}" MATCHES [[/([^/]+-(clang)?([0-9]\.[0-9]|))/config.mk$]])
if("${config_mk}" MATCHES [[/([^/]+-((clang)?([0-9]\.[0-9]|)))/config.mk$]])
set(_ANDROID_CUR_NAME "${CMAKE_MATCH_1}")
set(_ANDROID_CUR_VERS "${CMAKE_MATCH_3}")
set(_ANDROID_CUR_VERS "${CMAKE_MATCH_4}")
set(_ANDROID_CUR_VERS_NDK "${CMAKE_MATCH_2}")
if(_ANDROID_TOOL_VERS STREQUAL "")
# already the latest possible
elseif(_ANDROID_CUR_VERS STREQUAL "" OR _ANDROID_CUR_VERS VERSION_GREATER _ANDROID_TOOL_VERS)
set(_ANDROID_TOOL_NAME "${_ANDROID_CUR_NAME}")
set(_ANDROID_TOOL_VERS "${_ANDROID_CUR_VERS}")
set(_ANDROID_TOOL_VERS_NDK "${_ANDROID_CUR_VERS_NDK}")
string(REPLACE "/config.mk" "/setup.mk" _ANDROID_TOOL_SETUP_MK "${config_mk}")
endif()
unset(_ANDROID_CUR_TOOL)
unset(_ANDROID_CUR_VERS)
unset(_ANDROID_CUR_VERS_NDK)
endif()
endforeach()
@ -206,6 +210,8 @@ endif()
# Help CMakeFindBinUtils locate things.
set(_CMAKE_TOOLCHAIN_PREFIX "${_ANDROID_TOOL_PREFIX}")
set(_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION "${_ANDROID_TOOL_VERS_NDK}")
set(_ANDROID_TOOL_C_TOOLCHAIN_VERSION "${_ANDROID_TOOL_VERS}")
set(_ANDROID_TOOL_C_TOOLCHAIN_PREFIX "${CMAKE_ANDROID_NDK}/toolchains/${_ANDROID_TOOL_NAME}/prebuilt/${_ANDROID_HOST_DIR}/bin/${_ANDROID_TOOL_PREFIX}")
set(_ANDROID_TOOL_C_TOOLCHAIN_SUFFIX "${_ANDROID_HOST_EXT}")
@ -231,6 +237,7 @@ endif()
if(CMAKE_ANDROID_NDK_TOOLCHAIN_DEBUG)
message(STATUS "_ANDROID_TOOL_NAME=${_ANDROID_TOOL_NAME}")
message(STATUS "_ANDROID_TOOL_VERS=${_ANDROID_TOOL_VERS}")
message(STATUS "_ANDROID_TOOL_VERS_NDK=${_ANDROID_TOOL_VERS_NDK}")
message(STATUS "_ANDROID_TOOL_PREFIX=${_ANDROID_TOOL_PREFIX}")
message(STATUS "_ANDROID_TOOL_CLANG_NAME=${_ANDROID_TOOL_CLANG_NAME}")
message(STATUS "_ANDROID_TOOL_CLANG_VERS=${_ANDROID_TOOL_CLANG_VERS}")
@ -239,6 +246,7 @@ endif()
unset(_ANDROID_TOOL_NAME)
unset(_ANDROID_TOOL_VERS)
unset(_ANDROID_TOOL_VERS_NDK)
unset(_ANDROID_TOOL_PREFIX)
unset(_ANDROID_TOOL_CLANG_NAME)
unset(_ANDROID_TOOL_CLANG_VERS)

2
Modules/Platform/Android/Determine-Compiler-Standalone.cmake
View File

@ -57,3 +57,5 @@ else()
set(_ANDROID_TOOL_CXX_COMPILER "${_ANDROID_TOOL_CXX_TOOLCHAIN_PREFIX}g++${_ANDROID_TOOL_CXX_TOOLCHAIN_SUFFIX}")
set(_ANDROID_TOOL_CXX_COMPILER_EXTERNAL_TOOLCHAIN "")
endif()
set(_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION "")

2
Modules/Platform/Android/Determine-Compiler.cmake
View File

@ -40,6 +40,7 @@ if(CMAKE_ANDROID_NDK)
elseif(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
include(Platform/Android/Determine-Compiler-Standalone)
else()
set(_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION "")
set(_ANDROID_TOOL_C_COMPILER "")
set(_ANDROID_TOOL_C_TOOLCHAIN_VERSION "")
set(_ANDROID_TOOL_C_COMPILER_EXTERNAL_TOOLCHAIN "")
@ -61,6 +62,7 @@ macro(__android_determine_compiler lang)
# Save the Android-specific information in CMake${lang}Compiler.cmake.
set(CMAKE_${lang}_COMPILER_CUSTOM_CODE "
set(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION \"${_ANDROID_TOOL_NDK_TOOLCHAIN_VERSION}\")
set(CMAKE_${lang}_ANDROID_TOOLCHAIN_VERSION \"${_ANDROID_TOOL_${lang}_TOOLCHAIN_VERSION}\")
set(CMAKE_${lang}_COMPILER_EXTERNAL_TOOLCHAIN \"${_ANDROID_TOOL_${lang}_COMPILER_EXTERNAL_TOOLCHAIN}\")
set(CMAKE_${lang}_ANDROID_TOOLCHAIN_PREFIX \"${_ANDROID_TOOL_${lang}_TOOLCHAIN_PREFIX}\")

9
Tests/RunCMake/Android/common.cmake
View File

@ -22,8 +22,15 @@ string(APPEND CMAKE_CXX_FLAGS " -Werror -Wno-attributes")
string(APPEND CMAKE_EXE_LINKER_FLAGS " -Wl,-no-undefined")
if(CMAKE_ANDROID_NDK)
if(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION MATCHES "clang")
if(NOT CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION)
message(SEND_ERROR "CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION is not set!")
elseif(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION MATCHES "^clang")
add_definitions(-DCOMPILER_IS_CLANG)
elseif(NOT "${CMAKE_C_COMPILER}" MATCHES "toolchains/[^/]+-${CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION}/prebuilt")
message(SEND_ERROR "CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION is\n"
" ${CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION}\n"
"which does not appear in CMAKE_C_COMPILER:\n"
" ${CMAKE_C_COMPILER}")
endif()
elseif(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
execute_process(