[llvm-commits] [polly] r153439 - /polly/trunk/CMakeLists.txt

[Hongbin Zheng]

On Mon, Mar 26, 2012 at 11:24 PM, Tobias Grosser <tobias at grosser.es> wrote:
> On 03/26/2012 05:16 PM, Hongbin Zheng wrote:
>>
>> Author: ether
>> Date: Mon Mar 26 10:16:29 2012
>> New Revision: 153439
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=153439&view=rev
>> Log:
>> Out-of-tree build: Load the configuration of the installed llvm.
>>
>> Modified:
>>     polly/trunk/CMakeLists.txt
>>
>> Modified: polly/trunk/CMakeLists.txt
>> URL:
>> http://llvm.org/viewvc/llvm-project/polly/trunk/CMakeLists.txt?rev=153439&r1=153438&r2=153439&view=diff
>>
>> ==============================================================================
>> --- polly/trunk/CMakeLists.txt (original)
>> +++ polly/trunk/CMakeLists.txt Mon Mar 26 10:16:29 2012
>> @@ -20,23 +20,8 @@
>>    # Add the llvm header path.
>>    include_directories(${LLVM_INSTALL_ROOT}/include/)
>>
>> -  # Get the system librarys that will link into LLVM.
>> -  function(get_system_libs return_var)
>> -    # Returns in `return_var' a list of system libraries used by LLVM.
>> -    if( NOT MSVC )
>> -      if( MINGW )
>> -        set(system_libs ${system_libs} imagehlp psapi)
>> -      elseif( CMAKE_HOST_UNIX )
>> -        if( HAVE_LIBDL )
>> -          set(system_libs ${system_libs} ${CMAKE_DL_LIBS})
>> -        endif()
>> -        if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD )
>> -          set(system_libs ${system_libs} pthread)
>> -        endif()
>> -      endif( MINGW )
>> -    endif( NOT MSVC )
>> -    set(${return_var} ${system_libs} PARENT_SCOPE)
>> -  endfunction(get_system_libs)
>> +  # Load the configuration of the installed llvm.
>> +  include(${LLVM_INSTALL_ROOT}/share/llvm/cmake/LLVMConfig.cmake)
>
>
> This file is not installed, if LLVM is build with autoconf.
Sorry, i forgot this, i will fix it and add a comment.
>
> What about parsing the output of 'lli -version' to get the information that
> you need?
>
> $lli -version
> LLVM (http://llvm.org/):
>  LLVM version 3.1svn
>  DEBUG build with assertions.
>  Built Mar 16 2012 (11:26:54).
>  Default target: x86_64-unknown-linux-gnu
>  Host CPU: corei7
>
> Or even better; Why don't we just execute a trivial LLVM-IR file with an
> x86_64 triple with lli. If it works, we can use it. Otherwise not.
like passing an argument like -march=X86_64?
>
> Cheers
> Tobi