You can use the following commands to know what are compilers used in
the CMakeLists.txt:
message(C compiler: ${CMAKE_C_COMPILER})
message(C++ compiler: ${CMAKE_CXX_COMPILER})
Moreover, you can set them:
set(CMAKE_CXX_COMPILER ...)
regards
Benjamin JEANTY-RUARD
Le lundi 19 septembre 2011 à 14:44 +0200, Martin Kupke a écrit :
I'm using CMake in version 2.8.5 and just want to cross compile with a
decicated Compiler / Linker set on my Windows machine. Of course I've
read the FAQ and the Tutorial, afterwards I started trying to use CMake
on a DOS (cmd.exe) command line interface with CMakeLists.txt and a
toolchain file. After all tests failed to get CMake work in the Win32
environment, I tried it in my private Linux (Debian Squeeze) and the
same procedure is successful. In Linux environment it works as
described, in Win32 not.
My PC has installed Windows XP including SP3.
CMake version 2.8.5 is installed.
My development path contains a CMakeLists.txt and a toolchain_ppc.cmake
file, because I want to compile on my WinXP code for an embedded
hardware using a PPC processor.
The toolchain_ppc.cmake file contains the following settings:
set (CMAKE_GENERATOR NMake Makefiles)
set (CMAKE_SYSTEM_NAME Generic)
set (CMAKE_C_COMPILER dcc.exe)
set (CMAKE_SYSTEM_PROCESSOR ppc)
if(CMAKE_CROSSCOMPILING)
message(Cross Compiling)
endif(CMAKE_CROSSCOMPILING)
set(CMAKE_C_COMPILER C:/WindRiver/diab/5.9.0.0/WIN32/bin/dcc.exe)
set(CMAKE_C_FLAGS -tPPCVLEEN:simple)
In my build environment I created an empty folder output and in the
command line interface (console / cmd.exe) I'm calling the cmake tool:
D:\novero\Discovery\impl\target\CarIF_Appl\outputcmake -D
CMAKE_TOOLCHAIN_FILE=..\toolchain_ppc.cmake ..
The output of the cmake tool always is:
-- Building for: Visual Studio 10
Cross Compiling
As you can see my message Cross Compiling is shown, this introduces
that cmake is using the CMAKE_CROSSCOMPILING flag. But why the hell is
there always the output -- Building for: Visual Studio 10?
I don't wan't to use anything from / for Visual Studio 10.
The CMakeOutput.log contains the following lines:
The target system is: Generic - - ppc
The host system is: Windows - 5.1 - x86
Compiling the C compiler identification source file CMakeCCompilerId.c
succeeded.
Compiler: C:/WindRiver/diab/5.9.0.0/WIN32/bin/dcc.exe
Build flags: -tPPCVLEEN:simple
Id flags:
The output was:
0
Compilation of the C compiler identification source CMakeCCompilerId.c
produced a.out
Compiling the C compiler identification source file CMakeCCompilerId.c
succeeded.
Compiler: C:/WindRiver/diab/5.9.0.0/WIN32/bin/dcc.exe
Build flags: -tPPCVLEEN:simple
Id flags: -c
The output was:
0
Compilation of the C compiler identification source CMakeCCompilerId.c
produced CMakeCCompilerId.o
Compiling the CXX compiler identification source file
CMakeCXXCompilerId.cpp succeeded.
Compiler: C:/WindRiver/diab/5.9.0.0/WIN32/bin/dcc.exe
Build flags: -tPPCVLEEN:simple
Id flags:
The output was:
0
Compilation of the CXX compiler identification source
CMakeCXXCompilerId.cpp produced a.out
Compiling the CXX compiler identification source file
CMakeCXXCompilerId.cpp succeeded.
Compiler: C:/WindRiver/diab/5.9.0.0/WIN32/bin/dcc.exe
Build flags: -tPPCVLEEN:simple
Id flags: -c
The output was:
0
Compilation of the CXX compiler identification source
CMakeCXXCompilerId.cpp produced CMakeCXXCompilerId.o
Determining if the C compiler works passed with the following output:
Change Dir:
D:/novero/Discovery/impl/target/CarIF_Appl/output/CMakeFiles/CMakeTmp
Run Build Command:C:\PROGRA~1\MICROS~2.0\Common7\IDE\devenv.com
CMAKE_TRY_COMPILE.sln /build Debug /project cmTryCompileExec
Microsoft (R) Visual Studio Version 10.0.30319.1.
Copyright (C) Microsoft Corp. All rights reserved.
1-- Build started: Project: cmTryCompileExec, Configuration: Debug
Win32 --
1 testCCompiler.c
1C:\Program
Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppBuild.targets(990,5):
warning MSB8012:
TargetPath(D:\novero\Discovery\impl\target\CarIF_Appl\output\CMakeFiles\CMakeTmp\Debug\cmTryCompileExec)
does not match the Linker's OutputFile property value
(D:\novero\Discovery\impl\target\CarIF_Appl\output\CMakeFiles\CMakeTmp\Debug\cmTryCompileExec.exe).
This may cause your project to build incorrectly. To correct this,
please make sure that $(OutDir), $(TargetName) and $(TargetExt) property
values match the value specified in %(Link.OutputFile).
1 cmTryCompileExec.vcxproj -
D:\novero\Discovery\impl\target\CarIF_Appl\output\CMakeFiles\CMakeTmp\Debug\cmTryCompileExec
== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==
Detecting C compiler ABI info compiled with the following output:
Change Dir:
D:/novero/Discovery/impl/target/CarIF_Appl/output/CMakeFiles/CMakeTmp
Run Build
