On Wed, Jan 23, 2019 at 09:01:19PM +0100, Bruno Haible wrote: > Hi Rich, > > > I cannot reproduce this locally, hence my bug report is rather devoid > > of details. However, it's 100% reproducible in Koji (the Fedora > > Rawhide build system) on *all* architectures except armv7: > > > > FAIL: test-rwlock1 > > ================== > > Unexpected outcome 3 > > FAIL: test-thread_create > > As written in [1]: > "Unexpected outcome 3" means that the test program could not create a second > thread (other than the main thread). > > On glibc systems, this typically means that the 'test-rwlock1' program has not > been linked with '-lpthread'. > > > The full log is here: > > > > https://kojipkgs.fedoraproject.org//work/tasks/4382/32214382/build.log > > The configure command-line looks right. > > I see > LDFLAGS='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now > -specs=/usr/lib/rpm/redhat/redhat-hardened-ld' > > A global "-Wl,--as-needed" has the effect of removing libraries like > -lpthread from the link. Which would explain the symptom.
Ahhhhhhh, that would also explain why I couldn't reproduce it. I was using the default flags when I was testing locally. Using the Fedora flags, I *can* reproduce it locally, thanks! > What do the other elements of LDFLAGS do? All the flags AFAIK come from Fedora and are needed for hardening or other Fedora policy purposes. I checked the history of the Fedora package which adds these flags, and it seems like --as-needed was added for: https://fedoraproject.org/wiki/Changes/RemoveExcessiveLinking Removing -Wl,--as-needed fixes the problem. However I'm still unclear about this. Is Fedora wrong? Is hivex using gnulib wrongly? Is gnulib wrong? Rich. > Bruno > > [1] http://lists.gnu.org/archive/html/coreutils/2018-02/msg00020.html -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v
