[CMake] trouble with cmake 2.6-patch 0 cross compiling.

[Phil Pellouchoud]

Hi.

 

I've got cmake 2.6-patch 0 installed and I'm trying to get a simple
(helloworld.cpp) compiled and built on a linux system.

 

My toolchain file looks like this:

 

-- toolchain.cmake --

SET( CMAKE_SYSTEM_NAME foobar )

SET( CMAKE_SYST EM_VERSION 1 )

SET( CMAKE_SYSTEM_PROCESSOR arm-foo )

SET( CMAKE_SYSTEM_C_COMPILER /absolute/path/to/compiler )

SET( CMAKE_SYSTEM_CXX_COMPILER /absolute/path/to/compiler )

SET( CMAKE_FIND_ROOT_PATH /absolute/path/to/compiler/tools )

 

SET( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )

SET( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )

SET( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )

 

My CMakeLists.txt file looks like this:

-- CMakeLists.txt --

PROJECT( helloworld )

CMAKE_MINIMUM_REQUIRED( VERSION 2.6 )

ADD_EXECUTABLE( helloworld helloworld.cpp )

 

My "Platform/foobar.cmake" exists, but is empty.

 

My cmake command looks like this:

$ cmake -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake ..

 

That works without any error messages.  I can do a "make" and it builds
the program, but I am able to run it - which I shouldn't be able to do.
Just to be sure, I manually compiled helloworld.cpp (without cmake) and
when I tried to execute it, it rightfully detected the binary was not
compatible.

 

Furthermore, when I looked at CMakeCache.txt, I see

CMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc

 

Any help would be greatly appreciated.

 

Thanks.

 

-phil

 

p.s. I did first search the mailing lists and I consulted
http://www.cmake.org/Wiki/CMake_Cross_Compiling#The_toolchain_file first
as well.

 

Keywords: cmake, 2.6, cross compiling, linux, arm, toolchain

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