[SOLVED] Android build error: unknown target CPU 'armv7-a'

[DanielSefton]

Hi,

Having configured and generated the latest Ogre 1.9 for Android with CMake 2.8.12, when I run "make" on the build directory on OS X I receive the following error:

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make
Scanning dependencies of target OgreMain
[  0%] Building CXX object OgreMain/CMakeFiles/OgreMain.dir/src/OgreAlignedAllocator.cpp.o
clang: warning: argument unused during compilation: '-mfloat-abi=softfp'
clang: warning: argument unused during compilation: '-mfpu=vfp'
clang: warning: argument unused during compilation: '-mthumb'
warning: unknown warning option '-Wno-psabi' [-Wunknown-warning-option]
warning: unknown warning option '-Wno-unused-but-set-parameter'; did you mean '-Wno-unused-parameter'?
      [-Wunknown-warning-option]
error: unknown target CPU 'armv7-a'
make[2]: *** [OgreMain/CMakeFiles/OgreMain.dir/src/OgreAlignedAllocator.cpp.o] Error 1
make[1]: *** [OgreMain/CMakeFiles/OgreMain.dir/all] Error 2
make: *** [all] Error 2

Any ideas how to solve this?

Also, I'm not sure if it's related, but I also tried generating it with CMake 3.x, and apparently this version requires full paths, I receive the following errors:

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CMake Error at CMakeLists.txt:46 (project):
  The CMAKE_C_COMPILER:

    clang

  is not a full path and was not found in the PATH.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


CMake Error at CMakeLists.txt:46 (project):
  The CMAKE_CXX_COMPILER:

    clang++

  is not a full path and was not found in the PATH.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.

I tried adding explicit paths by setting CMAKE_C_COMPILER and CMAKE_CXX_COMPILER manually, but the properties disappear when I hit "Configure" and the same error is shown.

[Wolfmanfx]

Feels like he is picking the wrong compiler - so the toolchain file is not used

[DanielSefton]

Looks like it, tried the following, same error:

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-DCMAKE_C_COMPILER="/usr/bin/clang" -DCMAKE_CXX_COMPILER="/usr/bin/clang++"

edit: thanks for the quick reply btw!

[Wolfmanfx]

You can not use clang. Did you installed NDK - you have to use the compiler inside NDK

[DanielSefton]

Oh that makes sense - so it's picking out Clang and needs the NDK compiler.

Any idea where that is? Looking for it now...

[Wolfmanfx]

check the wiki for my android cmake guide

[DanielSefton]

Yeah that's what I've been following, just has 1 line for OS X: http://www.ogre3d.org/tikiwiki/tiki-ind ... on=Android

This is what I'm running:

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cmake -DANDROID_NDK="/Applications/android-ndk-r8e" -DCMAKE_TOOLCHAIN_FILE="`pwd`/CMake/toolchain/android.toolchain.cmake" -DOGRE_DEPENDENCIES_DIR="`pwd`/AndroidDependencies" -DANDROID_ABI=armeabi-v7a -DANDROID_NATIVE_API_LEVEL=9

Then I call "make", also tried with the "make" included in the NDK with the same results.

[DanielSefton]

Ok I started again with a clean Ogre and it's working now Didn't need to specify a compiler. It was probably down to not using the NDK "make" - using the standard make screwed it up irreversibly.

Might want to mention that in the Wiki.

Many thanks for your time.

[Wolfmanfx]

Np - looking forward to feature your game here (@news) when its ready

[spacegaier]

Might want to mention that in the Wiki.

Feel free to add a respective comment.

[DanielSefton]

Np - looking forward to feature your game here (@news) when its ready

Thanks Will post something in the showcase soon!

Feel free to add a respective comment.

Sorry yeah forgot I can just use my forum login - added it.