[Boost-users] [Boost.Math] Weird compiler-error with Clang 3.8

Subject: [Boost-users] [Boost.Math] Weird compiler-error with Clang 3.8
From: Deniz Bahadir (deniz.bahadir_at_[hidden])
Date: 2017-01-18 08:25:20

Hi guys,

Our build-server (Jenkins) tried to build Boost 1.58 with Clang 3.8 and 
libc++ and tripped over an error that I do not understand.
Maybe someone can shed some light on it?

The specific error is this:

clang-linux.compile.c++.pch 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src/tr1/pch.hpp.pth
clang: error: cannot specify -o when generating multiple output files

Does this look familiar to anyone?

My build-environment is Ubuntu 16.04 x86_64 and I invoked Boost.Build 
like this:

cd /home/jenkins/workspace/Pipeline_Boost/sources/boost_1_58_0
COMMON_COMPILER_FLAGS="-m64 -fpic -fdiagnostics-color=always -O3"
CFLAGS="$COMMON_COMPILER_FLAGS"
CXXFLAGS="$COMMON_COMPILER_FLAGS -std=c++14 -stdlib=libc++ 
-isystem/usr/include/libcxxabi -lc++abi"
CC=/usr/bin/clang-3.8
CXX=/usr/bin/clang++-3.8

/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost-build/b2 
-j1 -q  \
 
--build-dir=/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost  \
     --build-type=minimal --layout=versioned address-model=64 install  \
 
--prefix=/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/installed/opt/BENOCS/clang38 
  \
 
--libdir=/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/installed/opt/BENOCS/clang38/lib/x86_64-linux-gnu 
  \
     dll-path==/opt/BENOCS/clang38/lib/x86_64-linux-gnu  \
     toolset=clang-3.8  \
     cflags="$CFLAGS" CXXFLAGS="$CXXFLAGS" linkflags="-Wl,--as-needed"

The more detailed error-message is the following:

common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build
common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8
common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release
common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi
common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/..
common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src
common.mkdir 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src/tr1
clang-linux.compile.c++.pch 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src/tr1/pch.hpp.pth
clang: error: cannot specify -o when generating multiple output files

   rm -f 
"/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src/tr1/pch.hpp.pth" 
&& "clang++" -x c++-header -m64 -fpic -fdiagnostics-color=always -O3 
-std=c++14 -stdlib=libc++ -isystem/usr/include/libcxxabi -lc++abi -m64 
-fpic -fdiagnostics-color=always -O3   -O3 -Wno-inline -Wall -pthread 
-fPIC -m64 -m64 -fpic -fdiagnostics-color=always -O3 -std=c++14 
-stdlib=libc++ -isystem/usr/include/libcxxabi -lc++abi -m64 -fpic 
-fdiagnostics-color=always -O3   -DBOOST_ALL_NO_LIB=1 
-DBOOST_BUILD_PCH_ENABLED -DBOOST_MATH_TR1_DYN_LINK=1 -DNDEBUG -I"." 
-I"libs/math/src/tr1" -Xclang -emit-pth -o 
"/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src/tr1/pch.hpp.pth" 
"libs/math/build/../src/tr1/pch.hpp"

...failed clang-linux.compile.c++.pch 
/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi/../src/tr1/pch.hpp.pth...
...skipped 
<p/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi>assoc_laguerre.o 
for lack of 
<p/home/jenkins/workspace/Pipeline_Boost_at_3/clang38/build/boost/boost/bin.v2/libs/math/build/clang-linux-3.8/release/threading-multi>../src/tr1/pch.hpp.pth...
...failed updating 1 target...
...skipped 1 target...
...updated 11871 targets...

Can someone tell me what is going on and how to fix or work around this 
problem?

Thanks,
Deniz

-- 
BENOCS GmbH
Dipl.-Inform. Deniz Bahadir
Winterfeldtstr. 21
10781 Berlin
Germany
Phone: +49 - 30 / 577 0004-22
Email: deniz.bahadir_at_[hidden]
www.benocs.com
Board of Management:
   Michael Wolz, Dr.-Ing. Oliver Holschke, Dr.-Ing. Ingmar Poese
Commercial Register: Amtsgericht Bonn HRB 19378