Re: [boost] clang-win, (Thin)LTO this time

6 Nov 2018


      On 11/6/2018 6:29 AM, degski via Boost wrote:
...
On Tue, 6 Nov 2018 at 14:17, degski  wrote:
...
I did, and I've use this project-config:
import option ;
using clang-win : : "C:\\Program Files\\LLVM\\bin\\clang-cl.exe"
-fuse-ld=lld :
     <compatibility>vc14
     <compileflags>-fmsc-version=1915
     <compileflags>-fms-compatibility
     <compileflags>-fno-delayed-template-parsing
     <compileflags>-flto=thin
     <cxxflags>"/std:c++17"
Somebody asked about this, I believe Robert, so yes, compiles fine, even
with C++17 [serialization and wserialization].
I do not recall if I ask.  However, I have to escape the colon character 
with a backslash.  I discover that by accident a few builds ago with b2, 
building all Boost with the cl.exe, approximately Visual Studio 15.6.4. 
Have you observed any messages stating how an unknown option is ignored? 
  I purposely redirect all b2 output to a text file with the redirect 
operator.  The tail end of the b2 invocation is similar to:
...
buildVSx64Fri5_6.log 2>&1
I highly recommend using the "2>&1".  All error and normal messages will 
be in the one text file.  Reviewing the file should isolate results faster.

--Robert
...
<cxxflags>"/Zc:forScope"
...
<cxxflags>"/arch:AVX2"
     <cxxflags>"/Zc:wchar_t"
     <cxxflags>"/EHsc"
By default, /EHs is used and passed in it seems [so the above duplicates
this option, differently]. /EHs is not the default [/EHsc is] and in the
IDE, it [/EHs] is marked "Yes with Extern C functions". I don't know what
exactly this entails, but "Yes with Extern C functions" does not exactly
strike me as the thing I want [but who knows, maybe I do].
<cxxflags>"/Zc:inline"
...
<cxxflags>"/Gd"
     <cxxflags>"/diagnostics:classic"
     <cxxflags>-Wno-unknown-argument
     <cxxflags>-Wno-unknown-pragmas
     <cxxflags>-Wno-macro-redefined
     <cxxflags>-Wno-unused-variable
     <cxxflags>-Wno-mismatched-tags
     <cxxflags>-Wno-deprecated-declarations
     <cxxflags>-D_UNICODE
     <cxxflags>-DUNICODE
     <cxxflags>-DBOOST_USE_WINDOWS_H
     <cxxflags>-DBOOST_NO_ANSI_APIS
     <cxxflags>-DBOOST_USE_WINAPI_VERSION=0x1000
     <cxxflags>-DBOOST_USE_WINDOWS_H=1
     <cxxflags>-DNOMINMAX
     <cxxflags>-DWIN32_LEAN_AND_MEAN
     <cxxflags>-D_CRT_SECURE_NO_WARNINGS
;
degski