Re: [boost] [clang] Windows toolset support?

Subject: Re: [boost] [clang] Windows toolset support?
From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2012-11-05 12:16:06

> -----Original Message-----
> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of Paul A.
> Bristow
> Sent: Monday, November 05, 2012 5:11 PM
> To: boost_at_[hidden]
> Subject: Re: [boost] [clang] Windows toolset support?
> 
> 
> 
> > -----Original Message-----
> > From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of Paul A.
> > Bristow
> > Sent: Monday, October 29, 2012 9:34 AM
> > To: boost_at_[hidden]
> > Subject: Re: [boost] [clang] Windows toolset support?
> >
> > > On Tue, Oct 23, 2012 at 6:25 AM, Beman Dawes <bdawes_at_[hidden]> wrote:
> > >
> > > > Cygwin has been shipping clang for six months or so. Has anyone
> > > > gotten the cygwin/clang distribution (or any other clang
> > > > distribution) to build boost?
> > > >
> > > > What toolset did you use?
> > > >
> > > > What does your user-config.jam file look like?
> > > >
> > > > Do you run bjam/b2 from the Windows command line or the bash command line?
> >
> > > I do not use cygwin, however I have successfully been building and
> > > using Boost with Clang on
> > Windows
> > > using the toolchain provided by rubenvb over at the Mingw-w64 project:
> > > http://sourceforge.net/projects/mingw-
> > > w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/rubenvb/
> > > cl
> > > ang-3.1-release/
> > >
> > > My user-config.jam is empty.
> > >
> > > I compile with the following command line (windows command line):
> > >
> > > > set OLDCD=%CD%
> > > > pushd %BOOST_ROOT%
> > > > set OLDPATH=%PATH%
> > > > set PATH=%MINGW32_CLANG%;%MINGW32_CLANG%\bin\;%PATH%
> > > > b2 -j %NUMBER_OF_PROCESSORS% toolset=clang cxxflags=-std=c++11
> > > > address-model=32 architecture=x86 --stagedir=stage/clang-x86
> > > > link=static runtime-link=static threading=multi debug-symbols=on
> > > > define=WINVER=_WIN32_WINNT_VISTA
> > > > define=_WIN32_WINNT=_WIN32_WINNT_VISTA
> > > > stage > %OLDCD%\clang32.txt
> > > > set PATH=%OLDPATH%
> > > > popd
> > >
> > >
> > > Unfortunately Boost is detecting the compiler as "clang.linux", but
> > > other than that it seems to
> > work for the
> > > most part.
> > >
> > > The stuff that doesn't work:
> > > * Boost.Context (it fails to assemble its assembler files)
> > > * Boost.Math (it attempts an 'rm' command, I assume because it
> > > thinks it's on *nix)
> > > * Boost.Python (the same ::hypot error that also plagues GCC in
> > > C++11
> > > mode)
> > >
> > > Most everything else seems to work okay (though I have to use
> > > pragmas to disable a LOT of warnings when including boost headers,
> > > though that may simply be because I
> have all
> > warnings enabled).
> > >
> > > Clang support on Windows still needs a lot of work (Ruben tells me
> > > that there's about half a
> > person
> > > working on it on the Clang side), but perhaps some interest from the
> > > Boost community would help
> > drive
> > > some more investment into the platform?
> >
> > This sounds rather promising.
> >
> > Having got Ruben's mingw gcc binary to work nicely with NetBeans, I tried to use Ruben's Clang
> > binary, but I haven't got this configured right yet.   Since NetBeans provides a nice IDE on
> > Windows, I'm sure there will be lots of enthusiasm from Boosters to be able to use this
compiler.
> 
> But I am now trying to build the Boost libraries using the mingw.
> 
> After some googling, I've added
> 
> #  Clang compiler using mingw32 dw2 Ruben's release.
> using clang
>   : 3.1
>   : "C:/mingw32-dw2/bin/clang++.exe"
>   : # <cxxflags>-std="c++11"
>     <cxxflags>-v # diagnostics
>     <cflags>-nostdinc # Do not include MSVC C headers.
>     <cxxflags>-nostdinc++ # Do not include MSVC C++ headers.
>     # Instead use mingw-dw2 for includes
>     <cxxflags>-cxx-include-arch="C:/mingw32-dw2/i686-w64-mingw32"
>     <cxxflags>-cxx-include-root="C:/mingw32-dw2/include/c++/4.6.3"
>     <cxxflags>-cxx-include-32bit-dir=32
>     <cxxflags>-stdlib=libc++
>     <linkflags>-stdlib=libc++
>   ;
> 
>   # includes like <cstddef.h> are at C:\mingw32-dw2\include\c++\4.6.3
> 
> to my user_config.jam with this results
> 
> 
> compile.c++.without-pth
>
i:\boost-trunk\boost\bin.v2\libs\test\build\clang-linux-3.1\debug\threading-multi\execution_monitor.
> obj
> clang version 3.1 (tags/RELEASE_31/final 161181) (llvm/tags/RELEASE_31/final 161243)
> Target: i686-w64-mingw32
> Thread model: posix
>  "C:/mingw32-dw2/bin/clang++.exe"
> -cc1 -triple i686-w64-mingw32
> -S
> -disable-free -disable-llvm-verifier
> -main-file-name execution_monitor.cpp
> -mrelocation-model static
> -mdisable-fp-elim
> -mconstructor-aliases
>  -target-cpu pentium4
> -target-linker-version 2.22.0.20120323
> -momit-leaf-frame-pointer -v -g -coverage-file C:/Users/Paul/AppData/Local/Temp/execution_monitor-
> 536331.s
> -nostdinc++
> -resource-dir "C:/mingw32-dw2/bin\\..\\lib\\clang\\3.1"
>  -D BOOST_ALL_NO_LIB=1 -D BOOST_TEST_DYN_LINK=1 -I .
>  -fmodule-cache-path "C:\\Users\\Paul\\AppData\\Local\\Temp\\clang-module-cache"
> -stdlib=libc++
>  -O0 -Wall
>  -pedantic
> -fdeprecated-macro
> -fno-dwarf-directory-asm
>  -ferror-limit 19
> -fmessage-length 0
> -mstackrealign -fno-use-cxa-atexit -fno-inline -fgnu-runtime -fobjc-runtime-has-arc
-fobjc-runtime-has-
> weak -fobjc-fragile-abi -fcxx-exceptions -fexceptions -fdiagnostics-show-option -o
> C:/Users/Paul/AppData/Local/Temp/execution_monitor-536331.s
> -x c++ "libs\\test\\src\\execution_monitor.cpp"
> clang -cc1 version 3.1 based upon LLVM 3.1 default target i686-w64-mingw32 ignoring nonexistent
> directory "/usr/local/include"
> ignoring nonexistent directory
> "C:/mingw32-dw2/bin/../lib/clang/3.1/../../../x86_64-w64-mingw32/include"
> ignoring nonexistent directory "/mingw/include"
> ignoring nonexistent directory "/usr/include"
> #include "..." search starts here:
> #include <...> search starts here:
>  .
>  C:/mingw32-dw2/bin/../lib/clang/3.1/include
>  C:/mingw32-dw2/bin/../lib/clang/3.1/../../../i686-w64-mingw32/include
>  C:/mingw32-dw2/bin/../lib/clang/3.1/../../../include
>  c:/mingw/include
> End of search list.
> 
> In file included from libs\test\src\execution_monitor.cpp:16:
> In file included from .\boost/test/impl/execution_monitor.ipp:28:
> In file included from .\boost/test/detail/config.hpp:19:
> In file included from .\boost/config.hpp:40:
> .\boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef' file not found #  include
<cstddef>
>            ^
> 1 error generated.

Oops! Sorry pressed the send button too soon!

I suspect I am not passing the right include info.

"ignoring nonexistent directory
"C:/mingw32-dw2/bin/../lib/clang/3.1/../../../x86_64-w64-mingw32/include"

suggests that my absolute address has not been interpreted as I expected.

Suggestions most welcome.

Paul

---
Paul A. Bristow,
Prizet Farmhouse, Kendal LA8 8AB  UK
[phone]  07714330204
pbristow_at_[hidden]