Build for Android in Mac Fail

[jamesguo]

I changed something in android-config.cmake like this

set(ANDROID_TOOLCHAIN_PATH "/Users/James/Work/adt-bundle-mac-x86_64- 20130717/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/ darwin-x86_64/arm-linux-androideabi/bin") set(CMAKE_C_COMPILER ${ANDROID_TOOLCHAIN_PATH}/gcc) set(CMAKE_CXX_COMPILER ${ANDROID_TOOLCHAIN_PATH}/g++) set(CMAKE_ASM_COMPILER ${ANDROID_TOOLCHAIN_PATH}/as)

then after make got an error:

James-AirtekiMacBook-Air:build James$ cmake -DCMAKE_TOOLCHAIN_FILE=/Users/James/Work/Ne10-master/
android/android_config.cmake ..
-- The C compiler identification is unknown
-- The ASM compiler identification is GNU
-- Found assembler: /Users/James/Work/adt-bundle-mac-x86_64-20130717/
android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/
arm-linux-androideabi/bin/as
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
loaded toolchain:
OFF/arm-linux-androideabi-gcc
OFF/arm-linux-androideabi-g++
OFF/arm-linux-androideabi-as
OFF/arm-linux-androideabi-ar
OFF/arm-linux-androideabi-ranlib
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/James/Work/Ne10-master/build
James-AirtekiMacBook-Air:build James$ make
Scanning dependencies of target NE10
[ 1%] Building C object modules/CMakeFiles/NE10.dir/math/NE10_abs.c.o
gcc: error trying to exec 'cc1': execvp: No such file or directory
make[2]: *** [modules/CMakeFiles/NE10.dir/math/NE10_abs.c.o] Error 1
make[1]: *** [modules/CMakeFiles/NE10.dir/all] Error 2
make: *** [all] Error 2
James-AirtekiMacBook-Air:build James$

[zhongweiy]

Hi, James, the problem is your modification doesn't change sysroot path. And here is a simpler hack:

• change line 69 of android/android_config.cmake to:
  set(ANDROID_TOOLCHAIN_PATH "$ENV{ANDROID_NDK}/toolchains/arm-linux-androideabi-${ARM_ANDROID_TOOLCHAIN_VERSION}/prebuilt/darwin-x86_64/bin")
• And set the environment variable $ANDROID_NDK to your ndk path:
  $export ANDROID_NDK=/Users/James/Work/adt-bundle-mac-x86_64-20130717/android-ndk-r9

Hope it will work and feel free to post any other problem. I'll update this fix to master branch later.

[jamesguo]

get another error

set(ANDROID_TOOLCHAIN_PATH "$ENV{ANDROID_NDK}/toolchains/arm-linux-androideabi-${ARM_ANDROID_TOOLCHAIN_VERSION}/prebuilt/darwin-x86_64/bin")

#change toolchain name according to your configuration
set(CMAKE_C_COMPILER ${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-gcc)
set(CMAKE_CXX_COMPILER ${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-g++)
set(CMAKE_ASM_COMPILER ${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-as)

# Skip the platform compiler checks for cross compiling
set(CMAKE_CXX_COMPILER_WORKS TRUE)
set(CMAKE_C_COMPILER_WORKS TRUE)
set(CMAKE_ASM_COMPILER_WORKS TRUE)

find_program(CMAKE_AR NAMES "${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-ar")
mark_as_advanced(CMAKE_AR)

find_program(CMAKE_RANLIB NAMES "${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-ranlib")
mark_as_advanced(CMAKE_RANLIB)

Scanning dependencies of target NE10
[ 1%] Building C object modules/CMakeFiles/NE10.dir/math/NE10_abs.c.o
clang: warning: argument unused during compilation: '-mthumb-interwork'
clang: warning: argument unused during compilation: '-mfloat-abi=softfp'
clang: warning: argument unused during compilation: '-mfpu=vfp3'

error: unknown target CPU 'armv7-a'

[zhongweiy]

Could you post the verbose result of make? Like by running:
$VERBOSE=1 make

[jamesguo]

James-AirtekiMacBook-Air:build James$ VERBOSE=1 make
"/Applications/CMake 2.8-11.app/Contents/bin/cmake" -H/Users/James/Work/Ne10-master -B/Users/James/Work/Ne10-master/build --check-build-system CMakeFiles/Makefile.cmake 0
"/Applications/CMake 2.8-11.app/Contents/bin/cmake" -E cmake_progress_start /Users/James/Work/Ne10-master/build/CMakeFiles /Users/James/Work/Ne10-master/build/CMakeFiles/progress.marks
make -f CMakeFiles/Makefile2 all
make -f modules/CMakeFiles/NE10.dir/build.make modules/CMakeFiles/NE10.dir/depend
cd /Users/James/Work/Ne10-master/build && "/Applications/CMake 2.8-11.app/Contents/bin/cmake" -E cmake_depends "Unix Makefiles" /Users/James/Work/Ne10-master /Users/James/Work/Ne10-master/modules /Users/James/Work/Ne10-master/build /Users/James/Work/Ne10-master/build/modules /Users/James/Work/Ne10-master/build/modules/CMakeFiles/NE10.dir/DependInfo.cmake --color=
make -f modules/CMakeFiles/NE10.dir/build.make modules/CMakeFiles/NE10.dir/build
"/Applications/CMake 2.8-11.app/Contents/bin/cmake" -E cmake_progress_report /Users/James/Work/Ne10-master/build/CMakeFiles 1
[ 1%] Building C object modules/CMakeFiles/NE10.dir/math/NE10_abs.c.o
cd /Users/James/Work/Ne10-master/build/modules && /usr/bin/cc -DNE10_ENABLE_DSP -DNE10_ENABLE_IMGPROC -DNE10_ENABLE_MATH -O2 -mthumb-interwork -march=armv7-a -mfloat-abi=softfp -mfpu=vfp3 --sysroot= -I/Users/James/Work/Ne10-master/inc -I/Users/James/Work/Ne10-master/common -o CMakeFiles/NE10.dir/math/NE10_abs.c.o -c /Users/James/Work/Ne10-master/modules/math/NE10_abs.c
clang: warning: argument unused during compilation: '-mthumb-interwork'
clang: warning: argument unused during compilation: '-mfloat-abi=softfp'
clang: warning: argument unused during compilation: '-mfpu=vfp3'
error: unknown target CPU 'armv7-a'
make[2]: *** [modules/CMakeFiles/NE10.dir/math/NE10_abs.c.o] Error 1
make[1]: *** [modules/CMakeFiles/NE10.dir/all] Error 2
make: *** [all] Error 2

[jamesguo]

in android.cmake
set(NDK_SYSROOT_PATH "$ENV{ANDROID_NDK}/platforms/android-14/arch-arm/")
this path has no armv7-a
but in my NDK
/Users/James/Work/adt-bundle-mac-x86_64-20130717/android-ndk-r9/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86_64/arm-linux-androideabi/lib/armv7-a

[zhongweiy]

Hi, James,
I think the problem is here:

cd /Users/James/Work/Ne10-master/build/modules && /usr/bin/cc -DNE10_ENABLE_DSP -DNE10_ENABLE_IMGPROC -DNE10_ENABLE_MATH -O2 -mthumb-interwork -march=armv7-a -mfloat-abi=softfp -mfpu=vfp3 --sysroot= -I/Users/James/Work/Ne10-master/inc -I/Users/James/Work/Ne10-master/common -o CMakeFiles/NE10.dir/math/NE10_abs.c.o -c /Users/James/Work/Ne10-master/modules/math/NE10_abs.c

The make doesn't call correct compiler, it calles:

/usr/bin/cc

But it should call:

${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-gcc

if the configuration is correct.
I can't reproduce your error in my environment, maybe you can clear your build directory completely and give a try again. And your cmake output may also show some related information about your configuration.

[jamesguo]

when cmke android.cmake , it return

loaded toolchain:
OFF/arm-linux-androideabi-gcc
OFF/arm-linux-androideabi-g++
OFF/arm-linux-androideabi-as
OFF/arm-linux-androideabi-ar
OFF/arm-linux-androideabi-ranlib

is that correct

[zhongweiy]

Yeah, the cmake output is right. It's strange that you can't build it. Maybe you can try it under a completely clear build environment again, because cmake would cache some variable in files such as CMakeCache.txt etc.

[jamesguo]

i think my CMakeCache.txt created error ,but i dont konw why

//android platform
ANDROID_PLATFORM:BOOL=ON
//Android toolchain path
ANDROID_TOOLCHAIN_PATH:BOOL=OFF
//Path to a program.

CMAKE_AR:FILEPATH=/usr/bin/ar

//ASM compiler.

CMAKE_ASM_COMPILER:FILEPATH=/usr/bin/cc

//Flags used by the assembler during all build types.
CMAKE_ASM_FLAGS:STRING=
//Flags used by the assembler during debug builds.
CMAKE_ASM_FLAGS_DEBUG:STRING=-g
//Flags used by the assembler during release minsize builds.
CMAKE_ASM_FLAGS_MINSIZEREL:STRING=-Os -DNDEBUG
//Flags used by the assembler during release builds.
CMAKE_ASM_FLAGS_RELEASE:STRING=-O3 -DNDEBUG
//Flags used by the assembler during Release with Debug Info builds.
CMAKE_ASM_FLAGS_RELWITHDEBINFO:STRING=-O2 -g -DNDEBUG
//Choose the type of build, options are: None(CMAKE_CXX_FLAGS or
// CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.
CMAKE_BUILD_TYPE:STRING=
//Enable/Disable color output during build.
CMAKE_COLOR_MAKEFILE:BOOL=ON
//C compiler.

CMAKE_C_COMPILER:FILEPATH=/usr/bin/cc

//Flags used by the compiler during all build types.
CMAKE_C_FLAGS:STRING=
//Flags used by the compiler during debug builds.
CMAKE_C_FLAGS_DEBUG:STRING=-g
//Flags used by the compiler during release minsize builds.
CMAKE_C_FLAGS_MINSIZEREL:STRING=-Os -DNDEBUG
//Flags used by the compiler during release builds (/MD /Ob1 /Oi
// /Ot /Oy /Gs will produce slightly less optimized but smaller
// files).
CMAKE_C_FLAGS_RELEASE:STRING=-O3 -DNDEBUG
//Flags used by the compiler during Release with Debug Info builds.
CMAKE_C_FLAGS_RELWITHDEBINFO:STRING=-O2 -g -DNDEBUG
//Flags used by the linker.
CMAKE_EXE_LINKER_FLAGS:STRING=' '
//Flags used by the linker during debug builds.
CMAKE_EXE_LINKER_FLAGS_DEBUG:STRING=
//Flags used by the linker during release minsize builds.
CMAKE_EXE_LINKER_FLAGS_MINSIZEREL:STRING=
//Flags used by the linker during release builds.
CMAKE_EXE_LINKER_FLAGS_RELEASE:STRING=
//Flags used by the linker during Release with Debug Info builds.
CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO:STRING=
//Enable/Disable output of compile commands during generation.
CMAKE_EXPORT_COMPILE_COMMANDS:BOOL=OFF
//Path to a program.
CMAKE_INSTALL_NAME_TOOL:FILEPATH=/usr/bin/install_name_tool
//Install path prefix, prepended onto install directories.
CMAKE_INSTALL_PREFIX:PATH=/usr/local
//Path to a program.
CMAKE_LINKER:FILEPATH=/usr/bin/ld
//Path to a program.
CMAKE_MAKE_PROGRAM:FILEPATH=/usr/bin/make
//Flags used by the linker during the creation of modules.
CMAKE_MODULE_LINKER_FLAGS:STRING=' '
//Flags used by the linker during debug builds.
CMAKE_MODULE_LINKER_FLAGS_DEBUG:STRING=
//Flags used by the linker during release minsize builds.
CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL:STRING=
//Flags used by the linker during release builds.
CMAKE_MODULE_LINKER_FLAGS_RELEASE:STRING=
//Flags used by the linker during Release with Debug Info builds.
CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO:STRING=
//Path to a program.
CMAKE_NM:FILEPATH=/usr/bin/nm
//Path to a program.
CMAKE_OBJCOPY:FILEPATH=CMAKE_OBJCOPY-NOTFOUND
//Path to a program.
CMAKE_OBJDUMP:FILEPATH=CMAKE_OBJDUMP-NOTFOUND
//Build architectures for OSX
CMAKE_OSX_ARCHITECTURES:STRING=
//Minimum OS X version to target for deployment (at runtime); newer
// APIs weak linked. Set to empty string for default value.
CMAKE_OSX_DEPLOYMENT_TARGET:STRING=
//The product will be built against the headers and libraries located
// inside the indicated SDK.
CMAKE_OSX_SYSROOT:STRING=
//Value Computed by CMake
CMAKE_PROJECT_NAME:STATIC=NE10
//Path to a program.
CMAKE_RANLIB:FILEPATH=/usr/bin/ranlib
//Flags used by the linker during the creation of dll's.
CMAKE_SHARED_LINKER_FLAGS:STRING=' '
//Flags used by the linker during debug builds.
CMAKE_SHARED_LINKER_FLAGS_DEBUG:STRING=
//Flags used by the linker during release minsize builds.
CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL:STRING=
//Flags used by the linker during release builds.
CMAKE_SHARED_LINKER_FLAGS_RELEASE:STRING=
//Flags used by the linker during Release with Debug Info builds.
CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO:STRING=
//If set, runtime paths are not added when installing shared libraries,
// but are added when building.
CMAKE_SKIP_INSTALL_RPATH:BOOL=NO
//If set, runtime paths are not added when using shared libraries.
CMAKE_SKIP_RPATH:BOOL=NO
//Path to a program.
CMAKE_STRIP:FILEPATH=/usr/bin/strip
//No help, variable specified on the command line.
CMAKE_TOOLCHAIN_FILE:UNINITIALIZED=
//If true, cmake will use relative paths in makefiles and projects.
CMAKE_USE_RELATIVE_PATHS:BOOL=OFF
//If this value is on, makefiles will be generated without the
// .SILENT directive, and all commands will be echoed to the console
// during the make. This is useful for debugging only. With Visual
// Studio IDE projects all commands are done without /nologo.
CMAKE_VERBOSE_MAKEFILE:BOOL=FALSE
//Value Computed by CMake
NE10_BINARY_DIR:STATIC=/Users/James/Work/Ne10-master/build
//Build NE10 examples
NE10_BUILD_EXAMPLES:BOOL=ON
//Build NE10 shared libraries
NE10_BUILD_SHARED:BOOL=OFF
//Build NE10 static libraries
NE10_BUILD_STATIC:BOOL=ON
//Build NE10 unit test
NE10_BUILD_UNIT_TEST:BOOL=OFF
//Build dsp functionalities to NE10
NE10_ENABLE_DSP:BOOL=ON
//Build image processing functionalities to NE10
NE10_ENABLE_IMGPROC:BOOL=ON
//Build math functionalities to NE10
NE10_ENABLE_MATH:BOOL=ON
//Dependencies for target
NE10_LIB_DEPENDS:STATIC=
//Value Computed by CMake
NE10_SOURCE_DIR:STATIC=/Users/James/Work/Ne10-master
//ADVANCED property for variable: CMAKE_AR
CMAKE_AR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_ASM_COMPILER
CMAKE_ASM_COMPILER-ADVANCED:INTERNAL=1
CMAKE_ASM_COMPILER_WORKS:INTERNAL=1
//ADVANCED property for variable: CMAKE_ASM_FLAGS
CMAKE_ASM_FLAGS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_ASM_FLAGS_DEBUG
CMAKE_ASM_FLAGS_DEBUG-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_ASM_FLAGS_MINSIZEREL
CMAKE_ASM_FLAGS_MINSIZEREL-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_ASM_FLAGS_RELEASE
CMAKE_ASM_FLAGS_RELEASE-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_ASM_FLAGS_RELWITHDEBINFO
CMAKE_ASM_FLAGS_RELWITHDEBINFO-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_BUILD_TOOL
CMAKE_BUILD_TOOL-ADVANCED:INTERNAL=1
//What is the target build tool cmake is generating for.
CMAKE_BUILD_TOOL:INTERNAL=/usr/bin/make
//This is the directory where this CMakeCache.txt was created
CMAKE_CACHEFILE_DIR:INTERNAL=/Users/James/Work/Ne10-master/build
//Major version of cmake used to create the current loaded cache
CMAKE_CACHE_MAJOR_VERSION:INTERNAL=2
//Minor version of cmake used to create the current loaded cache
CMAKE_CACHE_MINOR_VERSION:INTERNAL=8
//Patch version of cmake used to create the current loaded cache
CMAKE_CACHE_PATCH_VERSION:INTERNAL=11
//ADVANCED property for variable: CMAKE_COLOR_MAKEFILE
CMAKE_COLOR_MAKEFILE-ADVANCED:INTERNAL=1
//Path to CMake executable.
CMAKE_COMMAND:INTERNAL=/Applications/CMake 2.8-11.app/Contents/bin/cmake
//Path to cpack program executable.
CMAKE_CPACK_COMMAND:INTERNAL=/Applications/CMake 2.8-11.app/Contents/bin/cpack
//Path to ctest program executable.
CMAKE_CTEST_COMMAND:INTERNAL=/Applications/CMake 2.8-11.app/Contents/bin/ctest
//ADVANCED property for variable: CMAKE_C_COMPILER
CMAKE_C_COMPILER-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_C_FLAGS
CMAKE_C_FLAGS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_DEBUG-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_C_FLAGS_MINSIZEREL
CMAKE_C_FLAGS_MINSIZEREL-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_RELEASE-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_C_FLAGS_RELWITHDEBINFO-ADVANCED:INTERNAL=1
//Path to cache edit program executable.
CMAKE_EDIT_COMMAND:INTERNAL=/Applications/CMake 2.8-11.app/Contents/bin/ccmake
//Executable file format
CMAKE_EXECUTABLE_FORMAT:INTERNAL=Unknown
//ADVANCED property for variable: CMAKE_EXE_LINKER_FLAGS
CMAKE_EXE_LINKER_FLAGS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_EXE_LINKER_FLAGS_DEBUG
CMAKE_EXE_LINKER_FLAGS_DEBUG-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_EXE_LINKER_FLAGS_MINSIZEREL
CMAKE_EXE_LINKER_FLAGS_MINSIZEREL-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_EXE_LINKER_FLAGS_RELEASE
CMAKE_EXE_LINKER_FLAGS_RELEASE-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO
CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_EXPORT_COMPILE_COMMANDS
CMAKE_EXPORT_COMPILE_COMMANDS-ADVANCED:INTERNAL=1
//Name of generator.
CMAKE_GENERATOR:INTERNAL=Unix Makefiles
//Name of generator toolset.
CMAKE_GENERATOR_TOOLSET:INTERNAL=
//Start directory with the top level CMakeLists.txt file for this
// project
CMAKE_HOME_DIRECTORY:INTERNAL=/Users/James/Work/Ne10-master
//ADVANCED property for variable: CMAKE_INSTALL_NAME_TOOL
CMAKE_INSTALL_NAME_TOOL-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_LINKER
CMAKE_LINKER-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_MAKE_PROGRAM
CMAKE_MAKE_PROGRAM-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_MODULE_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_MODULE_LINKER_FLAGS_DEBUG
CMAKE_MODULE_LINKER_FLAGS_DEBUG-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL
CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_MODULE_LINKER_FLAGS_RELEASE
CMAKE_MODULE_LINKER_FLAGS_RELEASE-ADVANCED:INTERNAL=1
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CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_NM
CMAKE_NM-ADVANCED:INTERNAL=1
//number of local generators
CMAKE_NUMBER_OF_LOCAL_GENERATORS:INTERNAL=3
//ADVANCED property for variable: CMAKE_OBJCOPY
CMAKE_OBJCOPY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_OBJDUMP
CMAKE_OBJDUMP-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_RANLIB
CMAKE_RANLIB-ADVANCED:INTERNAL=1
//Path to CMake installation.
CMAKE_ROOT:INTERNAL=/Applications/CMake 2.8-11.app/Contents/share/cmake-2.8
//ADVANCED property for variable: CMAKE_SHARED_LINKER_FLAGS
CMAKE_SHARED_LINKER_FLAGS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_SHARED_LINKER_FLAGS_DEBUG
CMAKE_SHARED_LINKER_FLAGS_DEBUG-ADVANCED:INTERNAL=1
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CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL-ADVANCED:INTERNAL=1
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CMAKE_SHARED_LINKER_FLAGS_RELEASE-ADVANCED:INTERNAL=1
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CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO-ADVANCED:INTERNAL=1
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CMAKE_SKIP_INSTALL_RPATH-ADVANCED:INTERNAL=1
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CMAKE_SKIP_RPATH-ADVANCED:INTERNAL=1
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CMAKE_STRIP-ADVANCED:INTERNAL=1
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CMAKE_UNAME:INTERNAL=/usr/bin/uname
//ADVANCED property for variable: CMAKE_USE_RELATIVE_PATHS
CMAKE_USE_RELATIVE_PATHS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CMAKE_VERBOSE_MAKEFILE
CMAKE_VERBOSE_MAKEFILE-ADVANCED:INTERNAL=1

[jamesguo]

my cmke file :

set(CMAKE_SYSTEM_NAME Linux)
set(ANDROID_PLATFORM ON)
if(ANDROID_PLATFORM)
set(ANDROID_DEMO ON)
endif()
if(ANDROID_DEMO)
add_definitions(-DNE10_ANDROID_DEMO)
endif()
if(DEFINED ENV{ANDROID_NDK})
if(NOT DEFINED ENV{ANDROID_API_LEVEL})
set(ANDROID_API_LEVEL 14)
else()
set(ANDROID_API_LEVEL $ENV{ANDROID_API_LEVEL})
endif()
if(NOT DEFINED ENV{ARM_ANDROID_TOOLCHAIN_VERSION})
set(ARM_ANDROID_TOOLCHAIN_VERSION 4.6)
else()
set(ARM_ANDROID_TOOLCHAIN_VERSION $ENV{ARM_ANDROID_TOOLCHAIN_VERSION})
endif()
#NDK_SYSROOT_PATH is used in compiler's '--sysroot' flags
set(NDK_SYSROOT_PATH "$ENV{ANDROID_NDK}/platforms/android-${ANDROID_API_LEVEL}/arch-arm/")
set(ANDROID_TOOLCHAIN_PATH "$ENV{ANDROID_NDK}/toolchains/arm-linux-androideabi-${ARM_ANDROID_TOOLCHAIN_VERSION}/prebuilt/darwin-x86_64/bin")
#change toolchain name according to your configuration

set(CMAKE_C_COMPILER ${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-gcc)

set(CMAKE_CXX_COMPILER ${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-g++)

set(CMAKE_ASM_COMPILER ${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-as)

#Skip the platform compiler checks for cross compiling
set(CMAKE_CXX_COMPILER_WORKS TRUE)
set(CMAKE_C_COMPILER_WORKS TRUE)
set(CMAKE_ASM_COMPILER_WORKS TRUE)
find_program(CMAKE_AR NAMES "${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-ar")
mark_as_advanced(CMAKE_AR)
find_program(CMAKE_RANLIB NAMES "${ANDROID_TOOLCHAIN_PATH}/arm-linux-androideabi-ranlib")
mark_as_advanced(CMAKE_RANLIB)
else()
message(FATAL_ERROR "Could not find Android NDK. You should set an environment variable: export ANDROID_NDK=/your/path/to/android/ndk")
endif()

[zhongweiy]

Hi, James, a fix for Android building under Mac has been added, you can try it by following the step in doc/CMakeBuilding.txt

[jamesguo]

done,thanks a lot.

[dhanvarsh03]

error: unknown target CPU 'armv7-a'
note: valid target CPU values are: nocona, core2, penryn, bonnell, atom, silvermont, slm, goldmont, goldmont-plus, tremont, nehalem, corei7, westmere, sandybridge, corei7-avx, ivybridge, core-avx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512, skx, cannonlake, icelake-client, icelake-server, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10, barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, x86-64
make: *** [gst-build-armeabi-v7a/gstreamer_android.o] Error 1

Can anyone please help me on this issue????

[edidada]

error: unknown target CPU 'armv7-a'
note: valid target CPU values are: nocona, core2, penryn, bonnell, atom, silvermont, slm, goldmont, goldmont-plus, tremont, nehalem, corei7, westmere, sandybridge, corei7-avx, ivybridge, core-avx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512, skx, cannonlake, icelake-client, icelake-server, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3, athlon64-sse3, opteron-sse3, amdfam10, barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, x86-64
make: *** [gst-build-armeabi-v7a/gstreamer_android.o] Error 1

Can anyone please help me on this issue????

I also meet this