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Subject: Re: [ANNOUNCEMENT] Updated: gcc-7.3.0-2 (x86/x86_64)(Test)
To: cygwin AT cygwin DOT com
Newsgroups: gmane.os.cygwin
References: <announce DOT 8503f29c-39b9-b7f0-e0fc-592b05154f35 AT gmail DOT com>
From: Ross Smith <ross DOT smith AT otoy DOT com>
Message-ID: <dfad2e11-8902-c770-3d97-6d26c1d2ff6c@otoy.com>
Date: Mon, 7 May 2018 11:54:56 +1200
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On 2018-05-05 22:00, JonY wrote:
> 
> gcc-7.3.0-2 has been uploaded for Cygwin. This version is for testing.
> 
> Java support has been removed from upstream GCC, GCJ is no longer available.
> 
> Changes since -1:
> * Enabled libstdc++ filesystem feature as requested by Nuno Lopes.

I've updated gcc-core, gcc-g++, and libstdc++ to 7.3.0-2,
but the filesystem library still doesn't seem to be working:

#include <experimental/filesystem>
#include <iostream>
using namespace std::experimental;
int main() {
     filesystem::path p("expfs.cpp");
     std::cout << p.string() << " " << filesystem::exists(p) << "\n";
}

$ g++ -std=c++1z expfs.cpp -o expfs

/tmp/ccV1QAAo.o:expfs.cpp:(.text$_ZNSt12experimental10filesystem2v16existsERKNS1_4pathE[_ZNSt12experimental10filesystem2v16existsERKNS1_4pathE]+0x11): 
undefined reference to 
`std::experimental::filesystem::v1::status(std::experimental::filesystem::v1::path 
const&)'
/tmp/ccV1QAAo.o:expfs.cpp:(.text$_ZNSt12experimental10filesystem2v16existsERKNS1_4pathE[_ZNSt12experimental10filesystem2v16existsERKNS1_4pathE]+0x11): 
relocation truncated to fit: R_X86_64_PC32 against undefined symbol 
`std::experimental::filesystem::v1::status(std::experimental::filesystem::v1::path 
const&)'
/tmp/ccV1QAAo.o:expfs.cpp:(.text$_ZNSt12experimental10filesystem2v14pathC1IA10_cS2_EERKT_[_ZNSt12experimental10filesystem2v14pathC1IA10_cS2_EERKT_]+0x5d): 
undefined reference to 
`std::experimental::filesystem::v1::path::_M_split_cmpts()'
/tmp/ccV1QAAo.o:expfs.cpp:(.text$_ZNSt12experimental10filesystem2v14pathC1IA10_cS2_EERKT_[_ZNSt12experimental10filesystem2v14pathC1IA10_cS2_EERKT_]+0x5d): 
relocation truncated to fit: R_X86_64_PC32 against undefined symbol 
`std::experimental::filesystem::v1::path::_M_split_cmpts()'
collect2: error: ld returned 1 exit status

Ross Smith

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