[CMake] Still have a problem to cross-compile a simple C++ program

[David Cole]

First, use the correct spelling:
-DCMAKE_TOOLACHAIN_FILE

should be:
-DCMAKE_TOOLCHAIN_FILE

If that doesn't solve it entirely, then try using a name without the "+"
character in it for the PROJECT command.

If that doesn't do it, give us more details, I guess.

I'm not a cross-compiling expert, so hopefully somebody else who is can
chime in here as well.


HTH,
David



On Wed, Jan 12, 2011 at 1:41 PM, Enrique Izaguirre <
enrique.izaguirre at gmail.com> wrote:

> Hello again:
> For some reason when I try to compile a simple C++ program, it takes the
> wrong compiler, even though I am setting the appropriate one in the
> Toolchain file; I am working on Cygwin, and I am trying to compile for a
> LInux environment using g++-linux compiler, which I tested it and works
> correctly.
>
> I have a folder named helloC++-linux, where I have all my stuff:
> A simple hello.cpp program
> My CMakeLists.txt contains:
>     #CMakeLists.txt :  CMake configuration file
>     PROJECT(helloC++-linux CXX)
>     #States that CMake required version must be >= 2.6
>     CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
>     #File to build and executable:
>     ADD_EXECUTABLE(hello.o hello.cpp)
>
> My Toolchain file (named Toolchain-linuxcpp.cmake) contains:
>    SET(CMAKE_SYSTEM_NAME Linux)
>    #specify the cross-compiler
>    SET(CMAKE_CXX_COMPILER /bin/g++-linux)
>
>
> and I tried to build it using following command:
> cmake -DCMAKE_TOOLACHAIN_FILE=./Toolchain-linuxcpp.cmake .
>
> But when building, CMake looks for a compiler, and takes  /usr/bin/c++.exe
> instead of /bin/g++-linux.
>
> I tried also using CMAKE_FORCE_CXX_COMPILER, but I got the same results. Is
> there any way of
> make it take the compiler from /bin, instead of from /usr/bin ?
>
> Thanks
>
> Best Regards
>
> Enrique
>
>
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