Re: current situation with clang-cl?

From: Dennis Luehring (dl.soluz_at_[hidden])
Date: 2020-08-12 18:10:25

im offically confused now

i can't build any of my former projects using 1.73 or 1.74 only 1.69
works without changes (maybe also 1.70+)

so mabye i didn't properbly checked the builds when i upgraded to 1.73

IDE: VS2017, clang-cl 10.0.0, LLVM Visual Studio Extension, Boost
1.69,1.73,1.74 - freshly build

using Boost 1.69 projects builds with microsoft-cl and clang-cl without
definining BOOST_LIB_TOOLSET
for Boost 1.73,1.74 i need to set BOOST_LIB_TOOLSET to "vc141"

example:

----------------------
//#define BOOST_LIB_TOOLSET "vc141" // only needed for 1.73 and 1.74,
not for 1.69
#include <boost/regex.hpp>

/* definition to expand macro then apply to pragma message */
#define VALUE_TO_STRING(x) #x
#define VALUE(x) VALUE_TO_STRING(x)
#define VAR_NAME_VALUE(var) #var "=" VALUE(var)

#ifdef _MSC_VER
#pragma message(VAR_NAME_VALUE(_MSC_VER))
#pragma message(VAR_NAME_VALUE(_MSC_FULL_VER))
#endif
#ifdef _clang__
#pragma message(VAR_NAME_VALUE(__clang__))
#pragma message(VAR_NAME_VALUE(__clang_version__))
#endif
#ifdef BOOST_MSVC
#pragma message(VAR_NAME_VALUE(BOOST_MSVC))
#endif
#ifdef BOOST_VERSION
#pragma message(VAR_NAME_VALUE(BOOST_VERSION))
#endif
#ifdef BOOST_LIB_TOOLSET
#pragma message(VAR_NAME_VALUE(BOOST_LIB_TOOLSET))
#endif

int main() {
     return 0;
}
----------------------

Boost 1.69

microsoft-cl

1>------ Rebuild All started: Project: clang_cl_tests, Configuration:
Debug Win32 ------
1>clang_cl_tests.cpp
1>Linking to lib file: libboost_regex-vc141-mt-gd-x32-1_69.lib
1>Linking to lib file: libboost_regex-vc141-mt-gd-x32-1_69.lib
1>_MSC_VER=1916
1>_MSC_FULL_VER=191627043
1>BOOST_MSVC=1916
1>BOOST_VERSION=106900
1>BOOST_LIB_TOOLSET="vc141"
1>   Creating library
D:\temp\clang_cl_tests\clang_cl_tests\Debug\clang_cl_tests.lib and
object D:\temp\clang_cl_tests\clang_cl_tests\Debug\clang_cl_tests.exp
1>clang_cl_tests.vcxproj ->
D:\temp\clang_cl_tests\clang_cl_tests\Debug\clang_cl_tests.exe
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========

clang-cl

1>------ Rebuild All started: Project: clang_cl_tests, Configuration:
Debug Win32 ------
1>clang_cl_tests.cpp(12): warning : _MSC_VER=1916 [-W#pragma-messages]
1>clang_cl_tests.cpp(13): warning : _MSC_FULL_VER=191627043
[-W#pragma-messages]
1>clang_cl_tests.cpp(23): warning : BOOST_VERSION=106900
[-W#pragma-messages]
1>lld-link : warning : /debug:fastlink unsupported; using /debug:full
1>clang_cl_tests.vcxproj ->
D:\temp\clang_cl_tests\clang_cl_tests\Debug\clang_cl_tests.exe
1>Done building project "clang_cl_tests.vcxproj".
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========

Boost 1.73

microsoft-cl

1>------ Rebuild All started: Project: clang_cl_tests, Configuration:
Debug Win32 ------
1>clang_cl_tests.cpp
1>Linking to lib file: libboost_regex-vc141-mt-gd-x32-1_73.lib
1>_MSC_VER=1916
1>_MSC_FULL_VER=191627043
1>BOOST_MSVC=1916
1>BOOST_VERSION=107300
1>BOOST_LIB_TOOLSET="vc141"
1>clang_cl_tests.vcxproj ->
D:\temp\clang_cl_tests\clang_cl_tests\Debug\clang_cl_tests.exe
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========

clang-cl

1>------ Rebuild All started: Project: clang_cl_tests, Configuration:
Debug Win32 ------
1>clang_cl_tests.cpp(12): warning : _MSC_VER=1916 [-W#pragma-messages]
1>clang_cl_tests.cpp(13): warning : _MSC_FULL_VER=191627043
[-W#pragma-messages]
1>clang_cl_tests.cpp(23): warning : BOOST_VERSION=107300
[-W#pragma-messages]
1>clang_cl_tests.cpp(26): warning : BOOST_LIB_TOOLSET="clangw" "10"
[-W#pragma-messages]
1>lld-link : warning : /debug:fastlink unsupported; using /debug:full
1>lld-link : error : could not open
'libboost_regex-clangw10-mt-gd-x32-1_73.lib': no such file or directory
1>Done building project "clang_cl_tests.vcxproj" -- FAILED.
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

Boost 1.74

microsoft-cl

1>------ Rebuild All started: Project: clang_cl_tests, Configuration:
Debug Win32 ------
1>clang_cl_tests.cpp
1>Linking to lib file: libboost_regex-vc141-mt-gd-x32-1_74.lib
1>_MSC_VER=1916
1>_MSC_FULL_VER=191627043
1>BOOST_MSVC=1916
1>BOOST_VERSION=107400
1>BOOST_LIB_TOOLSET="vc141"
1>clang_cl_tests.vcxproj ->
D:\temp\clang_cl_tests\clang_cl_tests\Debug\clang_cl_tests.exe
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========

clang-cl

1>------ Rebuild All started: Project: clang_cl_tests, Configuration:
Debug Win32 ------
1>clang_cl_tests.cpp(12): warning : _MSC_VER=1916 [-W#pragma-messages]
1>clang_cl_tests.cpp(13): warning : _MSC_FULL_VER=191627043
[-W#pragma-messages]
1>clang_cl_tests.cpp(23): warning : BOOST_VERSION=107400
[-W#pragma-messages]
1>clang_cl_tests.cpp(26): warning : BOOST_LIB_TOOLSET="clangw" "10"
[-W#pragma-messages]
1>lld-link : warning : /debug:fastlink unsupported; using /debug:full
1>lld-link : error : could not open
'libboost_regex-clangw10-mt-gd-x32-1_74.lib': no such file or directory
1>Done building project "clang_cl_tests.vcxproj" -- FAILED.
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

Am 12.08.2020 um 17:12 schrieb Peter Dimov via Boost:
> Dennis Luehring wrote:
> > it always worked for me without any special settings
> > (im on VS2017 and using the LLVM-VStudio
> > integrationhttps://marketplace.visualstudio.com/items?itemName=LLVMExtensions.llvm-toolchain
> > <https://marketplace.visualstudio.com/items?itemName=LLVMExtensions.llvm-toolchain>)
> >
> > i've never need to change anything in my projects beside installing latest
> > LLVM/clang + extension and switching the compiler
> > in every of my private and customer projects - its the first time with
> > 1.74 that it does not work out of the box
> >
> > i've never set any auto-link defines and using clang-cl on daily basis for
> > some years now
>
> What happens when you define BOOST_LIB_DIAGNOSTIC? What's the full compiler
> output when building your test program?
>
>
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