Am 18.07.2013 02:47, schrieb Jonathan Liu:
On 17 July 2013 22:12, Stefan Herbrechtsmeier
<[email protected]> wrote:
Am 17.07.2013 12:57, schrieb Jonathan Liu:
On 17/07/2013 7:49 PM, Jonathan Liu wrote:
On 17/07/2013 7:13 PM, Stefan Herbrechtsmeier wrote:
Am 17.07.2013 10:40, schrieb Jonathan Liu:
The CMAKE_{AR,LINKER,NM,OBJCOPY,OBJDUMP,RANLIB,STRIP} cmake variables
are currently set to values like CMAKE_LINKER-NOTFOUND for native
recipes because the host paths are not searched. This is because the
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM cmake variable is set to ONLY.
To resolve this, explicitly set the variables using FIND_PROGRAM and
pass the CMAKE_FIND_ROOT_PATH_BOTH option so the host paths are also
searched.
Can you please debug the issue. Regarding my current check the variables
are set in CMakeFindBinUtils.cmake and this is included by
CMakeDetermineCCompiler.cmake. The later set _CMAKE_TOOLCHAIN_LOCATION based
on the CMAKE_C_COMPILER variable and this is used as search location for the
find_program calls. Can you check the value of _CMAKE_TOOLCHAIN_LOCATION?
Within the context of the CMakeLists.txt file:
CMAKE_C_COMPILER is /usr/bin/gcc.
_CMAKE_TOOLCHAIN_LOCATION is not set to anything.
If I add message(test) to
build/tmp/sysroots/x86_64-linux/usr/share/cmake-2.8/Modules/CMakeDetermineCCompiler.cmake,
it doesn't get printed out when running cmake on CMakeLists.txt (cmake is
build/tmp/sysroots/x86_64-linux/usr/bin/cmake).
Regards,
Jonathan
For:
find_program(CMAKE_AR NAMES
${_CMAKE_TOOLCHAIN_PREFIX}ar${_CMAKE_TOOLCHAIN_SUFFIX} HINTS
${_CMAKE_TOOLCHAIN_LOCATION})
It seems the ${_CMAKE_TOOLCHAIN_LOCATION} hint is not used when
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM is set to ONLY.
You are right. The CMAKE_FIND_ROOT_PATH is used also as base for the HINTS
paths.
You can use _CMAKE_TOOLCHAIN_LOCATION to pass NO_CMAKE_FIND_ROOT_PATH to the
find_program calls:
set(_CMAKE_TOOLCHAIN_LOCATION "" NO_CMAKE_FIND_ROOT_PATH)
This should work but I am not sure if it is a good solution.
I prefer setting documented variables rather than hacking the
undocumented _CMAKE_TOOLCHAIN_LOCATION variable to add the
NO_CMAKE_FIND_ROOT_PATH flag for FIND_PROGRAM.
I think it is a issue in cmake and the _CMAKE_TOOLCHAIN_LOCATION don't
work with CMAKE_FIND_ROOT_PATH_MODE_PROGRAM set to ONLY.
I have open an issue in cmake to get some feedback. The could patch all
find_program calls in CMakeFindBinUtils.cmake modules:
- find_program(CMAKE_AR NAMES
${_CMAKE_TOOLCHAIN_PREFIX}ar${_CMAKE_TOOLCHAIN_SUFFIX} HINTS
${_CMAKE_TOOLCHAIN_LOCATION})
+ find_program(CMAKE_AR NAMES
${_CMAKE_TOOLCHAIN_PREFIX}ar${_CMAKE_TOOLCHAIN_SUFFIX} PATHS
"${_CMAKE_TOOLCHAIN_LOCATION}" NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
+ find_program(CMAKE_AR NAMES
${_CMAKE_TOOLCHAIN_PREFIX}ar${_CMAKE_TOOLCHAIN_SUFFIX})
Additionally there is a second issue as cmake fails to add the paths to
the CMAKE_C*_COMPILER variables in CMakeDetermineC*Compiler modules and
thereby couldn't set the _CMAKE_TOOLCHAIN_LOCATION. But this is a issue
of oe as we should pass the full path of the compilers.
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