# ------------------------------------------------------------------------------
# Android CMake toolchain file, for use with the Android NDK r5-r7
# Requires cmake 2.6.3 or newer (2.8.3 or newer is recommended).
# See home page: http://code.google.com/p/android-cmake/
#
# Usage Linux:
# $ export ANDROID_NDK=/absolute/path/to/the/android-ndk
# $ mkdir build && cd build
# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
# $ make -j8
#
# Usage Linux (using standalone toolchain):
# $ export ANDROID_STANDALONE_TOOLCHAIN=/absolute/path/to/android-toolchain
# $ mkdir build && cd build
# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
# $ make -j8
#
# Usage Windows:
# You need native port of make to build your project.
# Android NDK r7 already has make.exe on board.
# For older NDK you have to install it separately.
# For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm
#
# $ SET ANDROID_NDK=C:\absolute\path\to\the\android-ndk
# $ mkdir build && cd build
# $ cmake.exe -G"MinGW Makefiles"
# -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake
# -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows\bin\make.exe" ..
# $ "%ANDROID_NDK%\prebuilt\windows\bin\make.exe"
#
#
# Options (can be set as cmake parameters: -D<option_name>=<value>):
# ANDROID_NDK=/opt/android-ndk - path to the NDK root.
# Can be set as environment variable. Can be set only at first cmake run.
#
# ANDROID_STANDALONE_TOOLCHAIN=/opt/android-toolchain - path to the
# standalone toolchain. This option is not used if full NDK is found
# (ignored if ANDROID_NDK is set).
# Can be set as environment variable. Can be set only at first cmake run.
#
# ANDROID_ABI=armeabi-v7a - specifies the target Application Binary
# Interface (ABI). This option nearly matches to the APP_ABI variable
# used by ndk-build tool from Android NDK.
# Possible values are:
# "armeabi" - matches to the NDK ABI with the same name.
# See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation.
# "armeabi-v7a" - matches to the NDK ABI with the same name.
# See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation.
# "armeabi-v7a with NEON" - same as armeabi-v7a, but
# sets NEON as floating-point unit
# "armeabi-v7a with VFPV3" - same as armeabi-v7a, but
# sets VFPV3 as floating-point unit (has 32 registers instead of 16).
# "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP.
# "x86" - matches to the NDK ABI with the same name.
# See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation.
#
# ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for.
# Option is read-only when standalone toolchain used.
#
# ANDROID_FORCE_ARM_BUILD=OFF - set true to generate 32-bit ARM instructions
# instead of Thumb-1. Is not available for "x86" (inapplicable) and
# "armeabi-v6 with VFP" (forced) ABIs.
#
# ANDROID_NO_UNDEFINED=ON - set true to show all undefined symbols as linker
# errors even if they are not used.
#
# ANDROID_SO_UNDEFINED=OFF - set true to allow undefined symbols in shared
# libraries. Automatically turned on for NDK r5x and r6x due to GLESv2
# problems.
#
# LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary
# files. See additional details below.
#
# ANDROID_SET_OBSOLETE_VARIABLES=ON - it set, then toolchain defines some
# obsolete variables which were set by previous versions of this file for
# backward compatibility.
#
#
# What?:
# android-cmake toolchain searches for NDK/toolchain in the following order:
# ANDROID_NDK - cmake parameter
# ANDROID_NDK - environment variable
# ANDROID_STANDALONE_TOOLCHAIN - cmake parameter
# ANDROID_STANDALONE_TOOLCHAIN - environment variable
# ANDROID_NDK - default locations
# ANDROID_STANDALONE_TOOLCHAIN - default locations
#
# Make sure to do the following in your scripts:
# SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" )
# SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" )
# The flags will be prepopulated with critical flags, so don't loose them.
# Also be aware that toolchain also sets configuration-specific compiler
# flags and linker flags.
#
# ANDROID and BUILD_ANDROID will be set to true, you may test any of these
# variables to make necessary Android-specific configuration changes.
#
# Also ARMEABI or ARMEABI_V7A or X86 will be set true, mutually exclusive.
# NEON option will be set true if VFP is set to NEON.
#
# LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where Android
# libraries will be installed.
# Default is ${CMAKE_SOURCE_DIR}, and the android libs will always be
# under the ${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}
# (depending on the target ABI). This is convenient for Android packaging.
#
# Change Log:
# - initial version December 2010 Ethan Rublee ethan.ruble@gmail.com
# - modified April 2011 Andrey Kamaev andrey.kamaev@itseez.com
# [+] added possibility to build with NDK (without standalone toolchain)
# [+] support cross-compilation on Windows (native, no cygwin support)
# [+] added compiler option to force "char" type to be signed
# [+] added toolchain option to compile to 32-bit ARM instructions
# [+] added toolchain option to disable SWIG search
# [+] added platform "armeabi-v7a with VFPV3"
# [~] ARM_TARGETS renamed to ARM_TARGET
# [+] EXECUTABLE_OUTPUT_PATH is set by toolchain (required on Windows)
# [~] Fixed bug with ANDROID_API_LEVEL variable
# [~] turn off SWIG search if it is not found first time
# - modified May 2011 Andrey Kamaev andrey.kamaev@itseez.com
# [~] ANDROID_LEVEL is renamed to ANDROID_API_LEVEL
# [+] ANDROID_API_LEVEL is detected by toolchain if not specified
# [~] added guard to prevent changing of output directories on the first
# cmake pass
# [~] toolchain exits with error if ARM_TARGET is not recognized
# - modified June 2011 Andrey Kamaev andrey.kamaev@itseez.com
# [~] default NDK path is updated for version r5c
# [+] variable CMAKE_SYSTEM_PROCESSOR is set based on ARM_TARGET
# [~] toolchain install directory is added to linker paths
# [-] removed SWIG-related stuff from toolchain
# [+] added macro find_host_package, find_host_program to search
# packages/programs on the host system
# [~] fixed path to STL library
# - modified July 2011 Andrey Kamaev andrey.kamaev@itseez.com
# [~] fixed options caching
# [~] search for all supported NDK versions
# [~] allowed spaces in NDK path
# - modified September 2011 Andrey Kamaev andrey.kamaev@itseez.com
# [~] updated for NDK r6b
# - modified November 2011 Andrey Kamaev andrey.kamaev@itseez.com
# [*] rewritten for NDK r7
# [+] x86 toolchain support (experimental)
# [+] added "armeabi-v6 with VFP" ABI for ARMv6 processors.
# [~] improved compiler and linker flags management
# [+] support different build flags for Release and Debug configurations
# [~] by default compiler flags the same as used by ndk-build (but only
# where reasonable)
# [~] ANDROID_NDK_TOOLCHAIN_ROOT is splitted to ANDROID_STANDALONE_TOOLCHAIN
# and ANDROID_TOOLCHAIN_ROOT
# [~] ARM_TARGET is renamed to ANDROID_ABI
# [~] ARMEABI_NDK_NAME is renamed to ANDROID_NDK_ABI_NAME
# [~] ANDROID_API_LEVEL is renamed to ANDROID_NATIVE_API_LEVEL
# - modified January 2012 Andrey Kamaev andrey.kamaev@itseez.com
# [+] added stlport_static support (experimental)
# [+] added special check for cygwin
# [+] filtered out hidden files (starting with .) while globbing inside NDK
# [+] automatically applied GLESv2 linkage fix for NDK revisions 5-6
# [+] added ANDROID_GET_ABI_RAWNAME to get NDK ABI names by CMake flags
# - modified February 2012
# [+] mostly fixed try_compile (it was always failing for Android)
# ------------------------------------------------------------------------------
# this one is important
set ( CMAKE_SYSTEM_NAME Linux )
#this one not so much
set ( CMAKE_SYSTEM_VERSION 1 )
set ( ANDROID_SUPPORTED_NDK_VERSIONS -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" )
if ( CMAKE_HOST_WIN32 )
file ( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS )
set ( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}/android-ndk" "$ENV{SystemDrive}/NVPACK/android-ndk" )
else ( )
set ( ANDROID_NDK_SEARCH_PATHS /opt/android-ndk "$ENV{HOME}/NVPACK/android-ndk" )
endif ( )
set ( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain )
set ( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" )
set ( ANDROID_SUPPORTED_ABIS_x86 "x86" )
set ( ANDROID_DEFAULT_NDK_API_LEVEL 8 )
set ( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 )
macro ( __LIST_FILTER listvar regex )
if ( ${ listvar } )
foreach ( __val ${ ${listvar } } )
if ( __val MATCHES "${regex}" )
list ( REMOVE_ITEM ${ listvar } "${__val}" )
endif ( )
endforeach ( )
endif ( )
endmacro ( )
macro ( __INIT_VARIABLE var_name )
set ( __test_path 0 )
foreach ( __var ${ ARGN } )
if ( __var STREQUAL "PATH" )
set ( __test_path 1 )
break ( )
endif ( )
endforeach ( )
if ( __test_path AND NOT EXISTS "${${var_name}}" )
unset ( ${ var_name } CACHE )
endif ( )
if ( "${${var_name}}" STREQUAL "" )
set ( __values 0 )
foreach ( __var ${ ARGN } )
if ( __var STREQUAL "VALUES" )
set ( __values 1 )
elseif ( NOT __var STREQUAL "PATH" )
set ( __obsolete 0 )
if ( __var MATCHES "^OBSOLETE_.*$" )
string ( REPLACE "OBSOLETE_" "" __var "${__var}" )
set ( __obsolete 1 )
endif ( )
if ( __var MATCHES "^ENV_.*$" )
string ( REPLACE "ENV_" "" __var "${__var}" )
set ( __value "$ENV{${__var}}" )
elseif ( DEFINED ${ __var } )
set ( __value "${${__var}}" )
else ( )
if ( __values )
set ( __value "${__var}" )
else ( )
set ( __value "" )
endif ( )
endif ( )
if ( NOT "${__value}" STREQUAL "" )
if ( __test_path )
if ( EXISTS "${__value}" )
set ( ${ var_name } "${__value}" )
if ( __obsolete )
message ( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." )
endif ( )
break ( )
endif ( )
else ( )
set ( ${ var_name } "${__value}" )
if ( __obsolete )
message ( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." )
endif ( )
break ( )
endif ( )
endif ( )
endif ( )
endforeach ( )
unset ( __value )
unset ( __values )
unset ( __obsolete )
endif ( )
unset ( __test_path )
endmacro ( )
macro ( __DETECT_NATIVE_API_LEVEL _var _path )
SET ( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" )
FILE ( STRINGS ${ _path } __apiFileContent REGEX "${__ndkApiLevelRegex}" )
if ( NOT __apiFileContent )
message ( SEND_ERROR "Could not get Android native API level. Probably you have specified invalid level value, or your copy of NDK/toolchain is broken." )
endif ( )
string ( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${ _var } "${__apiFileContent}" )
unset ( __apiFileContent )
unset ( __ndkApiLevelRegex )
endmacro ( )
macro ( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root )
file ( GLOB __gccExePath "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" )
__LIST_FILTER ( __gccExePath "bin/[.].*-gcc${TOOL_OS_SUFFIX}$" )
list ( LENGTH __gccExePath __gccExePathsCount )
if ( NOT __gccExePathsCount EQUAL 1 )
message ( WARNING "Could not uniquely determine machine name for compiler from ${_root}." )
set ( ${ _var } "" )
else ( )
get_filename_component ( __gccExeName "${__gccExePath}" NAME_WE )
string ( REPLACE "-gcc" "" ${ _var } "${__gccExeName}" )
endif ( )
unset ( __gccExePath )
unset ( __gccExePathsCount )
unset ( __gccExeName )
endmacro ( )
macro ( __COPY_IF_DIFFERENT _source _destination )
execute_process ( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${_source}" "${_destination}" RESULT_VARIABLE __fileCopyProcess )
if ( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${_destination}" )
message ( SEND_ERROR "Failed copying of ${_source} to the ${_destination}" )
endif ( )
unset ( __fileCopyProcess )
endmacro ( )
#stl version: by default gnustl_static will be used
set ( ANDROID_USE_STLPORT FALSE CACHE BOOL "Experimental: use stlport_static instead of gnustl_static" )
mark_as_advanced ( ANDROID_USE_STLPORT )
#fight against cygwin
set ( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools" )
mark_as_advanced ( ANDROID_FORBID_SYGWIN )
if ( ANDROID_FORBID_SYGWIN )
if ( CYGWIN )
message ( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." )
endif ( )
if ( CMAKE_HOST_WIN32 )
#remove cygwin from PATH
set ( __new_path "$ENV{PATH}" )
__LIST_FILTER ( __new_path "cygwin" )
set ( ENV{PATH} "${__new_path}" )
unset ( __new_path )
endif ( )
endif ( )
#detect current host platform
set ( TOOL_OS_SUFFIX "" )
if ( CMAKE_HOST_APPLE )
set ( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86" )
elseif ( CMAKE_HOST_WIN32 )
set ( ANDROID_NDK_HOST_SYSTEM_NAME "windows" )
set ( TOOL_OS_SUFFIX ".exe" )
elseif ( CMAKE_HOST_UNIX )
set ( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86" )
else ( )
message ( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" )
endif ( )
#see if we have path to Android NDK
__INIT_VARIABLE ( ANDROID_NDK PATH ENV_ANDROID_NDK )
if ( NOT ANDROID_NDK )
#see if we have path to Android standalone toolchain
__INIT_VARIABLE ( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN OBSOLETE_ANDROID_NDK_TOOLCHAIN_ROOT OBSOLETE_ENV_ANDROID_NDK_TOOLCHAIN_ROOT )
if ( NOT ANDROID_STANDALONE_TOOLCHAIN )
#try to find Android NDK in one of the the default locations
set ( __ndkSearchPaths )
foreach ( __ndkSearchPath ${ ANDROID_NDK_SEARCH_PATHS } )
foreach ( suffix ${ ANDROID_SUPPORTED_NDK_VERSIONS } )
list ( APPEND __ndkSearchPaths "${__ndkSearchPath}${suffix}" )
endforeach ( )
endforeach ( )
__INIT_VARIABLE ( ANDROID_NDK PATH VALUES ${ __ndkSearchPaths } )
unset ( __ndkSearchPaths )
if ( ANDROID_NDK )
message ( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" )
message ( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" )
else ( )
#try to find Android standalone toolchain in one of the the default locations
__INIT_VARIABLE ( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH )
if ( ANDROID_STANDALONE_TOOLCHAIN )
message ( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" )
message ( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" )
endif ( ANDROID_STANDALONE_TOOLCHAIN )
endif ( ANDROID_NDK )
endif ( NOT ANDROID_STANDALONE_TOOLCHAIN )
endif ( NOT ANDROID_NDK )
#remember found paths
if ( ANDROID_NDK )
get_filename_component ( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE )
#try to detect change
if ( CMAKE_AR )
string ( LENGTH "${ANDROID_NDK}" __length )
string ( SUBSTRING "${CMAKE_AR}" 0 ${ __length } __androidNdkPreviousPath )
if ( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK )
message ( FATAL_ERROR "It is not possible to change path to the NDK on subsequent run." )
endif ( )
unset ( __androidNdkPreviousPath )
unset ( __length )
endif ( )
set ( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" )
set ( BUILD_WITH_ANDROID_NDK True )
elseif ( ANDROID_STANDALONE_TOOLCHAIN )
get_filename_component ( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE )
#try to detect change
if ( CMAKE_AR )
string ( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length )
string ( SUBSTRING "${CMAKE_AR}" 0 ${ __length } __androidStandaloneToolchainPreviousPath )
if ( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN )
message ( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." )
endif ( )
unset ( __androidStandaloneToolchainPreviousPath )
unset ( __length )
endif ( )
set ( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" )
set ( BUILD_WITH_STANDALONE_TOOLCHAIN True )
else ( )
list ( GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH )
message ( FATAL_ERROR " Could not find neither Android NDK nor Android standalone toolcahin.
Y o u s h o u l d e i t h e r s e t a n e n v i r o n m e n t v a r i a b l e :
e x p o r t A N D R O I D _ N D K = ~ / m y - a n d r o i d - n d k
o r
e x p o r t A N D R O I D _ S T A N D A L O N E _ T O O L C H A I N = ~ / m y - a n d r o i d - t o o l c h a i n
o r p u t t h e t o o l c h a i n o r N D K i n t h e d e f a u l t p a t h :
s u d o l n - s ~ / m y - a n d r o i d - n d k $ { A N D R O I D _ N D K _ S E A R C H _ P A T H }
s u d o l n - s ~ / m y - a n d r o i d - t o o l c h a i n $ { A N D R O I D _ S T A N D A L O N E _ T O O L C H A I N _ S E A R C H _ P A T H } " )
endif ( )
#get all the details about standalone toolchain
if ( BUILD_WITH_STANDALONE_TOOLCHAIN )
__DETECT_NATIVE_API_LEVEL ( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" )
set ( __availableToolchains "standalone" )
__DETECT_TOOLCHAIN_MACHINE_NAME ( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" )
if ( NOT __availableToolchainMachines )
message ( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." )
endif ( )
if ( __availableToolchainMachines MATCHES i686 )
set ( __availableToolchainArchs "x86" )
elseif ( __availableToolchainMachines MATCHES arm )
set ( __availableToolchainArchs "arm" )
endif ( )
if ( ANDROID_COMPILER_VERSION )
#do not run gcc every time because it is relatevely expencive
set ( __availableToolchainCompilerVersions "${ANDROID_COMPILER_VERSION}" )
else ( )
execute_process ( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version
O U T P U T _ V A R I A B L E _ _ a v a i l a b l e T o o l c h a i n C o m p i l e r V e r s i o n s O U T P U T _ S T R I P _ T R A I L I N G _ W H I T E S P A C E )
string ( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" )
endif ( )
endif ( )
#get all the details about NDK
if ( BUILD_WITH_ANDROID_NDK )
file ( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" )
string ( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" )
file ( GLOB __availableToolchains RELATIVE "${ANDROID_NDK}/toolchains" "${ANDROID_NDK}/toolchains/*" )
__LIST_FILTER ( __availableToolchains "^[.]" )
set ( __availableToolchainMachines "" )
set ( __availableToolchainArchs "" )
set ( __availableToolchainCompilerVersions "" )
foreach ( __toolchain ${ __availableToolchains } )
__DETECT_TOOLCHAIN_MACHINE_NAME ( __machine "${ANDROID_NDK}/toolchains/${__toolchain}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
if ( __machine )
string ( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+$" __version "${__toolchain}" )
string ( REGEX MATCH "^[^-]+" __arch "${__toolchain}" )
list ( APPEND __availableToolchainMachines ${ __machine } )
list ( APPEND __availableToolchainArchs ${ __arch } )
list ( APPEND __availableToolchainCompilerVersions ${ __version } )
else ( )
list ( REMOVE_ITEM __availableToolchains "${__toolchain}" )
endif ( )
endforeach ( )
if ( NOT __availableToolchains )
message ( FATAL_ERROR "Could not any working toolchain in the NDK. Probably your Android NDK is broken." )
endif ( )
endif ( )
#build list of available ABIs
if ( NOT ANDROID_SUPPORTED_ABIS )
set ( ANDROID_SUPPORTED_ABIS "" )
set ( __uniqToolchainArchNames ${ __availableToolchainArchs } )
list ( REMOVE_DUPLICATES __uniqToolchainArchNames )
list ( SORT __uniqToolchainArchNames )
foreach ( __arch ${ __uniqToolchainArchNames } )
list ( APPEND ANDROID_SUPPORTED_ABIS ${ ANDROID_SUPPORTED_ABIS_${__arch } } )
endforeach ( )
unset ( __uniqToolchainArchNames )
if ( NOT ANDROID_SUPPORTED_ABIS )
message ( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." )
endif ( )
endif ( )
#choose target ABI
__INIT_VARIABLE ( ANDROID_ABI OBSOLETE_ARM_TARGET OBSOLETE_ARM_TARGETS VALUES ${ ANDROID_SUPPORTED_ABIS } )
#verify that target ABI is supported
list ( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx )
if ( __androidAbiIdx EQUAL -1 )
string ( REPLACE ";" "\" , \"", PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" )
message ( FATAL_ERROR "Specified ANDROID_ABI = \" ${ ANDROID_ABI } \" is not supported by this cmake toolchain or your NDK/toolchain.
S u p p o r t e d v a l u e s a r e : \ " $ { P R I N T A B L E _ A N D R O I D _ S U P P O R T E D _ A B I S } \ "
" )
endif ( )
unset ( __androidAbiIdx )
#remember target ABI
set ( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE )
#set target ABI options
if ( ANDROID_ABI STREQUAL "x86" )
set ( X86 true )
set ( ANDROID_NDK_ABI_NAME "x86" )
set ( ANDROID_ARCH_NAME "x86" )
set ( CMAKE_SYSTEM_PROCESSOR "i686" )
elseif ( ANDROID_ABI STREQUAL "armeabi" )
set ( ARMEABI true )
set ( ANDROID_NDK_ABI_NAME "armeabi" )
set ( ANDROID_ARCH_NAME "arm" )
set ( CMAKE_SYSTEM_PROCESSOR "armv5te" )
elseif ( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" )
set ( ARMEABI_V6 true )
set ( ANDROID_NDK_ABI_NAME "armeabi" )
set ( ANDROID_ARCH_NAME "arm" )
set ( CMAKE_SYSTEM_PROCESSOR "armv6" )
#need always fallback to older platform
set ( ARMEABI true )
elseif ( ANDROID_ABI STREQUAL "armeabi-v7a" )
set ( ARMEABI_V7A true )
set ( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
set ( ANDROID_ARCH_NAME "arm" )
set ( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
elseif ( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" )
set ( ARMEABI_V7A true )
set ( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
set ( ANDROID_ARCH_NAME "arm" )
set ( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
set ( VFPV3 true )
elseif ( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" )
set ( ARMEABI_V7A true )
set ( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
set ( ANDROID_ARCH_NAME "arm" )
set ( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
set ( VFPV3 true )
set ( NEON true )
else ( )
message ( SEND_ERROR "Unknown ANDROID_ABI=\" ${ ANDROID_ABI } \" is specified. " )
endif ( )
set ( ANDROID_SUPPORTED_ABIS ${ ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME } } CACHE INTERNAL "ANDROID_ABI can be changed only to one of these ABIs. Changing to any other ABI requires to reset cmake cache." )
if ( CMAKE_VERSION VERSION_GREATER "2.8" )
list ( SORT ANDROID_SUPPORTED_ABIS_ ${ ANDROID_ARCH_NAME } )
set_property ( CACHE ANDROID_ABI PROPERTY STRINGS ${ ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME } } )
endif ( )
if ( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 )
__INIT_VARIABLE ( ANDROID_FORCE_ARM_BUILD OBSOLETE_FORCE_ARM VALUES OFF )
set ( ANDROID_FORCE_ARM_BUILD ${ ANDROID_FORCE_ARM_BUILD } CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE )
mark_as_advanced ( ANDROID_FORCE_ARM_BUILD )
else ( )
unset ( ANDROID_FORCE_ARM_BUILD CACHE )
endif ( )
#choose toolchain
if ( ANDROID_TOOLCHAIN_NAME )
list ( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx )
if ( __toolchainIdx EQUAL -1 )
message ( FATAL_ERROR "Previously selected toolchain \" ${ ANDROID_TOOLCHAIN_NAME } \" is missing. You need to remove CMakeCache.txt and rerun cmake manually to change the toolchain " )
endif ( )
list ( GET __availableToolchainArchs ${ __toolchainIdx } __toolchainArch )
if ( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME )
message ( SEND_ERROR "Previously selected toolchain \" ${ ANDROID_TOOLCHAIN_NAME } \" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform. " )
endif ( )
else ( )
set ( __toolchainIdx -1 )
set ( __applicableToolchains "" )
set ( __toolchainMaxVersion "0.0.0" )
list ( LENGTH __availableToolchains __availableToolchainsCount )
math ( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" )
foreach ( __idx RANGE ${ __availableToolchainsCount } )
list ( GET __availableToolchainArchs ${ __idx } __toolchainArch )
if ( __toolchainArch STREQUAL ANDROID_ARCH_NAME )
list ( GET __availableToolchainCompilerVersions ${ __idx } __toolchainVersion )
if ( __toolchainVersion VERSION_GREATER __toolchainMaxVersion )
set ( __toolchainMaxVersion "${__toolchainVersion}" )
set ( __toolchainIdx ${ __idx } )
endif ( )
endif ( )
endforeach ( )
unset ( __availableToolchainsCount )
unset ( __toolchainMaxVersion )
unset ( __toolchainVersion )
endif ( )
unset ( __toolchainArch )
if ( __toolchainIdx EQUAL -1 )
message ( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." )
endif ( )
list ( GET __availableToolchains ${ __toolchainIdx } ANDROID_TOOLCHAIN_NAME )
list ( GET __availableToolchainMachines ${ __toolchainIdx } ANDROID_TOOLCHAIN_MACHINE_NAME )
list ( GET __availableToolchainCompilerVersions ${ __toolchainIdx } ANDROID_COMPILER_VERSION )
set ( ANDROID_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" CACHE INTERNAL "Name of toolchain used" )
set ( ANDROID_COMPILER_VERSION "${ANDROID_COMPILER_VERSION}" CACHE INTERNAL "compiler version from selected toolchain" )
unset ( __toolchainIdx )
unset ( __availableToolchains )
unset ( __availableToolchainMachines )
unset ( __availableToolchainArchs )
unset ( __availableToolchainCompilerVersions )
#choose native API level
__INIT_VARIABLE ( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_ ${ ANDROID_ARCH_NAME } ANDROID_DEFAULT_NDK_API_LEVEL )
string ( REGEX MATCH "[0-9]+" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" )
#validate
list ( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx )
if ( __levelIdx EQUAL -1 )
message ( SEND_ERROR "Specified Android native API level (${ANDROID_NATIVE_API_LEVEL}) is not supported by your NDK/toolchain." )
endif ( )
unset ( __levelIdx )
if ( BUILD_WITH_ANDROID_NDK )
__DETECT_NATIVE_API_LEVEL ( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" )
if ( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL )
message ( SEND_ERROR "Specified Android API level (${ANDROID_NATIVE_API_LEVEL}) does not match to the level found (${__realApiLevel}). Probably your copy of NDK is broken." )
endif ( )
unset ( __realApiLevel )
endif ( )
set ( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE )
if ( CMAKE_VERSION VERSION_GREATER "2.8" )
list ( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS )
set_property ( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ ANDROID_SUPPORTED_NATIVE_API_LEVELS } )
endif ( )
#setup paths
if ( BUILD_WITH_STANDALONE_TOOLCHAIN )
set ( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" )
set ( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" )
set ( __stlLibPath "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" )
endif ( )
if ( BUILD_WITH_ANDROID_NDK )
set ( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
set ( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" )
if ( ANDROID_USE_STLPORT )
set ( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" )
set ( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}" )
else ( )
set ( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/include" )
set ( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}" )
endif ( )
endif ( )
# specify the cross compiler
set ( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "gcc" )
set ( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "g++" )
set ( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" )
#there may be a way to make cmake deduce these TODO deduce the rest of the tools
set ( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" )
set ( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" )
set ( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" )
set ( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" )
set ( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" )
set ( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" )
#export directories
set ( ANDROID_SYSTEM_INCLUDE_DIRS "" )
set ( ANDROID_SYSTEM_LIB_DIRS "" )
#setup output directories
set ( LIBRARY_OUTPUT_PATH_ROOT ${ CMAKE_SOURCE_DIR } CACHE PATH "root for library output, set this to change where android libs are installed to" )
set ( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" )
set ( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS OFF CACHE BOOL "" )
if ( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS )
if ( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" )
set ( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" )
else ( )
set ( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" )
endif ( )
set ( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "path for android libs" )
endif ( )
set ( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS ON CACHE INTERNAL "" FORCE )
#includes
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_SYSROOT}/usr/include" )
if ( __stlIncludePath AND EXISTS "${__stlIncludePath}" )
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlIncludePath}" )
endif ( )
#STL bits includes
if ( __stlLibPath AND EXISTS "${__stlLibPath}/include" )
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlLibPath}/include" )
endif ( )
if ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb/bits" )
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb" )
elseif ( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" )
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" )
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" )
elseif ( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/bits" )
list ( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" )
endif ( )
#flags and definitions
if ( ANDROID_SYSROOT MATCHES "[ ;\" ] " )
set ( ANDROID_CXX_FLAGS "--sysroot=\" ${ ANDROID_SYSROOT } \"" )
# quotes will break try_compile and compiler identification
message ( WARNING "Your Android system root has non-alphanumeric symbols. It can break compiler features detection and the whole build." )
else ( )
set ( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
endif ( )
remove_definitions ( -DANDROID )
add_definitions ( -DANDROID )
# Force set compilers because standard identification works badly for us
include ( CMakeForceCompiler )
CMAKE_FORCE_C_COMPILER ( "${CMAKE_C_COMPILER}" GNU )
CMAKE_FORCE_CXX_COMPILER ( "${CMAKE_CXX_COMPILER}" GNU )
set ( CMAKE_SIZEOF_VOID_P 4 )
set ( CMAKE_C_SIZEOF_DATA_PTR 4 )
set ( CMAKE_CXX_SIZEOF_DATA_PTR 4 )
# NDK flags
if ( ARMEABI OR ARMEABI_V7A )
# NDK also defines -ffunction-sections -funwind-tables but they result in worse OpenCV performance
set ( CMAKE_CXX_FLAGS "-fPIC -Wno-psabi" )
set ( CMAKE_C_FLAGS "-fPIC -Wno-psabi" )
if ( ANDROID_USE_STLPORT )
set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" )
set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions" )
else ( )
set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti -fexceptions" )
set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions" )
endif ( )
remove_definitions ( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ )
add_definitions ( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ )
# extra arm-specific flags
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" )
elseif ( X86 )
set ( CMAKE_CXX_FLAGS "-ffunction-sections -funwind-tables" )
set ( CMAKE_C_FLAGS "-ffunction-sections -funwind-tables" )
if ( ANDROID_USE_STLPORT )
set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" )
set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions" )
else ( )
set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti -fexceptions" )
set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions" )
endif ( )
else ( )
set ( CMAKE_CXX_FLAGS "" )
set ( CMAKE_C_FLAGS "" )
endif ( )
#release and debug flags
if ( ARMEABI OR ARMEABI_V7A )
if ( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 )
#It is recommended to use the -mthumb compiler flag to force the generation
#of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones).
# O3 instead of O2/Os in release mode - like cmake sets for desktop gcc
set ( CMAKE_CXX_FLAGS_RELEASE "-mthumb -O3" )
set ( CMAKE_C_FLAGS_RELEASE "-mthumb -O3" )
set ( CMAKE_CXX_FLAGS_DEBUG "-marm -Os -finline-limit=64" )
set ( CMAKE_C_FLAGS_DEBUG "-marm -Os -finline-limit=64" )
else ( )
# always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI
# O3 instead of O2/Os in release mode - like cmake sets for desktop gcc
set ( CMAKE_CXX_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" )
set ( CMAKE_C_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" )
set ( CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -finline-limit=300" )
set ( CMAKE_C_FLAGS_DEBUG "-marm -O0 -finline-limit=300" )
endif ( )
elseif ( X86 )
set ( CMAKE_CXX_FLAGS_RELEASE "-O3 -fstrict-aliasing" )
set ( CMAKE_C_FLAGS_RELEASE "-O3 -fstrict-aliasing" )
set ( CMAKE_CXX_FLAGS_DEBUG "-O0 -finline-limit=300" )
set ( CMAKE_C_FLAGS_DEBUG "-O0 -finline-limit=300" )
endif ( )
set ( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" )
set ( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" )
set ( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" )
set ( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" )
#ABI-specific flags
if ( ARMEABI_V7A )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" )
if ( NEON )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" )
elseif ( VFPV3 )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" )
else ( )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfp" )
endif ( )
elseif ( ARMEABI_V6 )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" )
elseif ( ARMEABI )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" )
elseif ( X86 )
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" ) #sse?
endif ( )
#linker flags
list ( APPEND ANDROID_SYSTEM_LIB_DIRS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}" "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" )
set ( LINKER_FLAGS "" )
#STL
if ( ANDROID_USE_STLPORT )
if ( EXISTS "${__stlLibPath}/libstlport_static.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/libstlport_static.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" )
endif ( )
if ( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" )
set ( LINKER_FLAGS "${LINKER_FLAGS} -Wl,--start-group -lstlport_static" )
endif ( )
else ( ANDROID_USE_STLPORT )
if ( EXISTS "${__stlLibPath}/libgnustl_static.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/libgnustl_static.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/thumb/libstdc++.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/thumb/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
elseif ( EXISTS "${__stlLibPath}/libstdc++.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
endif ( )
if ( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
set ( LINKER_FLAGS "${LINKER_FLAGS} -lstdc++" )
endif ( )
#gcc exception & rtti support
if ( EXISTS "${__stlLibPath}/libsupc++.a" )
__COPY_IF_DIFFERENT ( "${__stlLibPath}/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" )
__COPY_IF_DIFFERENT ( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" )
__COPY_IF_DIFFERENT ( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" )
elseif ( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" )
__COPY_IF_DIFFERENT ( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" )
elseif ( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" )
__COPY_IF_DIFFERENT ( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" )
endif ( )
if ( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" )
set ( LINKER_FLAGS "${LINKER_FLAGS} -lsupc++" )
endif ( )
endif ( ANDROID_USE_STLPORT )
#cleanup for STL search
unset ( __stlIncludePath )
unset ( __stlLibPath )
#other linker flags
__INIT_VARIABLE ( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON )
set ( ANDROID_NO_UNDEFINED ${ ANDROID_NO_UNDEFINED } CACHE BOOL "Show all undefined symbols as linker errors" FORCE )
mark_as_advanced ( ANDROID_NO_UNDEFINED )
if ( ANDROID_NO_UNDEFINED )
set ( LINKER_FLAGS "-Wl,--no-undefined ${LINKER_FLAGS}" )
endif ( )
if ( ANDROID_NDK MATCHES "-r[56].?$" )
#libGLESv2.so in NDK's prior to r7 refers to exteranal symbols. So this flag option is required for all projects using OpenGL from native.
__INIT_VARIABLE ( ANDROID_SO_UNDEFINED VALUES ON )
else ( )
__INIT_VARIABLE ( ANDROID_SO_UNDEFINED VALUES OFF )
endif ( )
set ( ANDROID_SO_UNDEFINED ${ ANDROID_SO_UNDEFINED } CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE )
mark_as_advanced ( ANDROID_SO_UNDEFINED )
if ( ANDROID_SO_UNDEFINED )
set ( LINKER_FLAGS "${LINKER_FLAGS} -Wl,-allow-shlib-undefined" )
endif ( )
if ( ARMEABI_V7A )
# this is *required* to use the following linker flags that routes around
# a CPU bug in some Cortex-A8 implementations:
set ( LINKER_FLAGS "-Wl,--fix-cortex-a8 ${LINKER_FLAGS}" )
endif ( )
#cache flags
set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags" )
set ( CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c flags" )
set ( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c++ Release flags" )
set ( CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c Release flags" )
set ( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c++ Debug flags" )
set ( CMAKE_C_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c Debug flags" )
set ( CMAKE_SHARED_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" )
set ( CMAKE_MODULE_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" )
set ( CMAKE_EXE_LINKER_FLAGS "-Wl,--gc-sections -Wl,-z,nocopyreloc ${LINKER_FLAGS}" CACHE STRING "linker flags" )
include_directories ( SYSTEM ${ ANDROID_SYSTEM_INCLUDE_DIRS } )
link_directories ( ${ ANDROID_SYSTEM_LIB_DIRS } )
#finish flags
set ( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Extra Android falgs" )
set ( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" )
set ( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" )
#set these global flags for cmake client scripts to change behavior
set ( ANDROID True )
set ( BUILD_ANDROID True )
# where is the target environment
set ( CMAKE_FIND_ROOT_PATH "${ANDROID_TOOLCHAIN_ROOT}/bin" "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" "${ANDROID_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" )
# only search for libraries and includes in the ndk toolchain
set ( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
set ( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
set ( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
#macro to find packages on the host OS
macro ( find_host_package )
set ( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
set ( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
set ( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
if ( CMAKE_HOST_WIN32 )
SET ( WIN32 1 )
SET ( UNIX )
elseif ( CMAKE_HOST_APPLE )
SET ( APPLE 1 )
SET ( UNIX )
endif ( )
find_package ( ${ ARGN } )
SET ( WIN32 )
SET ( APPLE )
SET ( UNIX 1 )
set ( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
set ( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
set ( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
endmacro ( )
#macro to find programs on the host OS
macro ( find_host_program )
set ( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
set ( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
set ( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
if ( CMAKE_HOST_WIN32 )
SET ( WIN32 1 )
SET ( UNIX )
elseif ( CMAKE_HOST_APPLE )
SET ( APPLE 1 )
SET ( UNIX )
endif ( )
find_program ( ${ ARGN } )
SET ( WIN32 )
SET ( APPLE )
SET ( UNIX 1 )
set ( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
set ( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
set ( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
endmacro ( )
macro ( ANDROID_GET_ABI_RAWNAME TOOLCHAIN_FLAG VAR )
if ( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI" )
set ( ${ VAR } "armeabi" )
elseif ( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI_V7A" )
set ( ${ VAR } "armeabi-v7a" )
elseif ( "${TOOLCHAIN_FLAG}" STREQUAL "X86" )
set ( ${ VAR } "x86" )
else ( )
set ( ${ VAR } "unknown" )
endif ( )
endmacro ( )
set ( ANDROID_SET_OBSOLETE_VARIABLES ON CACHE BOOL "Define obsolete Andrid-specific cmake variables" )
mark_as_advanced ( ANDROID_SET_OBSOLETE_VARIABLES )
if ( ANDROID_SET_OBSOLETE_VARIABLES )
set ( ANDROID_API_LEVEL ${ ANDROID_NATIVE_API_LEVEL } )
set ( ARM_TARGET "${ANDROID_ABI}" )
set ( ARMEABI_NDK_NAME "${ANDROID_NDK_ABI_NAME}" )
endif ( )
# Variables controlling behavior or set by cmake toolchain:
# ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86"
# ANDROID_FORCE_ARM_BUILD : ON/OFF
# ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14 (depends on NDK version)
# ANDROID_NO_UNDEFINED : ON/OFF
# ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version)
# ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF
# LIBRARY_OUTPUT_PATH_ROOT : <any path>
# ANDROID_USE_STLPORT : OFF/ON - EXPERIMENTAL!!!
# ANDROID_FORBID_SYGWIN : ON/OFF
# Can be set only at the first run:
# ANDROID_NDK
# ANDROID_STANDALONE_TOOLCHAIN
# Obsolete:
# ANDROID_API_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL
# ARM_TARGET : superseded by ANDROID_ABI
# ARM_TARGETS : superseded by ANDROID_ABI (can be set only)
# ANDROID_NDK_TOOLCHAIN_ROOT : superseded by ANDROID_STANDALONE_TOOLCHAIN (can be set only)
# ANDROID_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL (completely removed)
#
# Primary read-only variables:
# ANDROID : always TRUE
# ARMEABI : TRUE for arm v6 and older devices
# ARMEABI_V6 : TRUE for arm v6
# ARMEABI_V7A : TRUE for arm v7a
# NEON : TRUE if NEON unit is enabled
# VFPV3 : TRUE if VFP version 3 is enabled
# X86 : TRUE if configured for x86
# BUILD_ANDROID : always TRUE
# BUILD_WITH_ANDROID_NDK : TRUE if NDK is used
# BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used
# ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform
# ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a" or "x86" depending on ANDROID_ABI
# ANDROID_ARCH_NAME : "arm" or "x86" depending on ANDROID_ABI
# TOOL_OS_SUFFIX : "" or ".exe" depending on host platform
# ANDROID_SYSTEM_INCLUDE_DIRS
# ANDROID_SYSTEM_LIB_DIRS
# Obsolete:
# ARMEABI_NDK_NAME : superseded by ANDROID_NDK_ABI_NAME
#
# Secondary (less stable) read-only variables:
# ANDROID_COMPILER_VERSION : GCC version used
# ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform
# ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI
# ANDROID_SYSROOT : path to the compiler sysroot
# ANDROID_TOOLCHAIN_NAME : "standalone", "arm-linux-androideabi-4.4.3" or "x86-4.4.3" or something similar.
# ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux"
# ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK)
# ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK
#
# Defaults:
# ANDROID_DEFAULT_NDK_API_LEVEL
# ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH}
# ANDROID_NDK_SEARCH_PATHS
# ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH
# ANDROID_SUPPORTED_ABIS_${ARCH}
# ANDROID_SUPPORTED_NDK_VERSIONS
