Re: pkg/54353: audio/audacity build fails linking on netbsd-8/i386

[Onno van der Linden <o.vd.linden%quicknet.nl@localhost>]

The following reply was made to PR pkg/54353; it has been noted by GNATS.

From: Onno van der Linden <o.vd.linden%quicknet.nl@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/54353: audio/audacity build fails linking on netbsd-8/i386
Date: Fri, 12 Jul 2019 17:13:21 +0200

 Compiling
 
 #include <atomic>
 
 int main(void)
 {
   std::atomic<double> a;
   a = 1.0;
 }
 
 on my i386 machine with c++ -O3 c.cc
 fails with unresolved external __atomic_store_8.
 Using c++ -O3 -march=i586 c.cc works fine.
 
 Looks like 
 
 .if ${MACHINE_ARCH} == "i386"
 # 64 bit atomic ops are required
 CXXFLAGS+=      -march=i586
 .endif
 
 might be needed in audacity/Makefile.
 
 Even with -march=i586 clang++ 5.0 still fails with the unresolved external.
 No idea if more recent versions of clang work.
 
 Onno