[Bug 1012] CMake issues with newer Xenomai custom installs.

http://bugs.orocos.org/show_bug.cgi?id=1012

Peter Soetens <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #1 from Peter Soetens <[email protected]> 2012-12-17 23:28:27 CET ---
(In reply to comment #0)
> I'm building Orocos RTT (from git) with Xenomai under ubuntu. I have
> experienced some troubles:
> 1. After running ccmake, pressing c, changing OROCOS_TARGET to xenomai,
> configure again, I'm getting following error:
> No OROCOS_TARGET environment variable detected. Using: xenomai
> [...]
> CMake Error at config/check_depend.cmake:264 (message):
>     No suitable OROCOS_TARGET selected.  Use one of
>     'lxrt,xenomai,gnulinux,macosx,win32'
>   Call Stack (most recent call first):
>     CMakeLists.txt:146 (INCLUDE)
> 
> OROCOS_TARGET=xenomai ccmake .. is producing the same error, but after
> setting XENOMAI_ROOT_DIR environment variable, everything is almost fine.
> 
> 2. Almost, becouse ccmake finds xenomai_posix_include_dir in /usr/include
> instead of /usr/xenomai/include, and the xenomai_posix_library is not found.
> 
> 3. Why searching for paths in FindXenomai.cmake using find_path or
> find_library instead of using xeno-config like it is done in
> FindXenomaiPosix.cmake?
> 
> 4. Fix for deprecated function (I suppose it is not changed due older xenomai
> versions compatibility, but I think it is good time, to change it now):
> diff --git a/config/FindXenomaiPosix.cmake b/config/FindXenomaiPosix.cmake
> index 1b6e49b..edb7256 100644
> --- a/config/FindXenomaiPosix.cmake
> +++ b/config/FindXenomaiPosix.cmake
> @@ -43,8 +43,8 @@ endif()
>   if( XENOMAI_POSIX_LIBRARY AND XENOMAI_POSIX_INCLUDE_DIR AND NOT
> XENOMAI_XENO_CONFIG )
>     message(SEND_ERROR "Your Xenomai installation is broken: I can not
> determine Xenomai POSIX cflags/ldflags without xeno-config.")
>   else()
> -  execute_process(COMMAND ${XENOMAI_XENO_CONFIG} --posix-ldflags
> OUTPUT_VARIABLE XENOMAI_POSIX_LDFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
> -  execute_process(COMMAND ${XENOMAI_XENO_CONFIG} --posix-cflags
> OUTPUT_VARIABLE XENOMAI_POSIX_CFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
> +  execute_process(COMMAND ${XENOMAI_XENO_CONFIG} --skin=posix --ldflags
> OUTPUT_VARIABLE XENOMAI_POSIX_LDFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
> +  execute_process(COMMAND ${XENOMAI_XENO_CONFIG} --skin=posix --cflags
> OUTPUT_VARIABLE XENOMAI_POSIX_CFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
>   endif()
> 
>   # Set the include dir variables and the libraries and let libfind_process do
> the rest.

I addressed all these issues on the toolchain-2.6 branch. I didn't go for
xeno-config all the way since it requires quite some decoding to translate the
output of that command into cmake-usable cflags/ldflags.

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