On Mon, Jan 11, 2021 at 02:52:43PM -0800, H.J. Lu wrote: > On Mon, Jan 11, 2021 at 1:20 PM Alan Modra <amo...@gmail.com> wrote: > > > > On Mon, Jan 11, 2021 at 11:53:15AM -0800, H.J. Lu via Binutils wrote: > > > Check if AR is usable for LTO build with --enable-pgo-build=lto: > > > > > > checking for -plugin option... ar: no operation specified > > > Failed: ar --plugin > > > /usr/gcc-11.0.0-x32/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/liblto_plugin.so > > > rc > > > no > > > configure: error: AR with --plugin and rc is required for LTO build > > > > > > instead of build failure later. > > > > > > PR binutils/26766 > > > * configure.ac: > > > * configure: Regenerated. > > > > See pr27173 too. The problem isn't a matter of finding an "ar" that > > supports --plugin, we have versions of GNU ar (2.30 to 2.32?) that > > accept --plugin but then don't parse the "rc" or other command > > options. I don't think this patch will help. > > PR 27173 patches are at > > https://sourceware.org/pipermail/binutils/2021-January/114879.html
After that one is committed, this patch is OK too (with any needed modifications). -- Alan Modra Australia Development Lab, IBM
