Adding the libstdc++ mailing list to the patch. -- Caroline cmt...@google.com
On Wed, Mar 10, 2021 at 8:50 PM Caroline Tice <cmt...@google.com> wrote: > > This patch is to fix PR 99172. > > Currently when GCC is configured with --enable-vtable-verify, the > libstdc++-v3 Makefiles add "-fvtable-verify=std > -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end" to libtool link > commands. The "-fvtable-verify=std" piece causes alternate versions of > libtool (such as slibtool) to fail, unable to find "-lvtv" (GNU > libtool just removes that piece). > > This patch updates the libstdc++-v3 Makefiles to not pass > "-fvtable-verify=std" to the libtool link commands, while continuing > to pass the rest of the VTV flags (which are necessary for VTV to > work). > > I tested this by configuring with --enable-vtable-verify, boostrapping > the compiler, and running all the regression testsuites (including > libvtv & libstdc++) without any regressions. I only ran it on a linux > system, on an x86_64 machine. > > I also gave a copy of the patch to the person who reported the bug, > and they verified that the patch fixes their issue. > > Is this ok to commit? > > -- Caroline Tice > cmt...@google.com > > libstdc++-v3/ChangeLog > > 2021-03-10 Caroline Tice <cmt...@google.com> > > PR libstdc++/99172 > * Makefile.in: Regenerate. > * acinclude.m4: Add definitions for VTV_CXXFLAGS_LT. > * configure: Regenerate. > * doc/Makefile.in: Regenerate. > * include/Maefile.in: Regenerate. > * libsupc++/Makefile.in: Regenerate. > * po/Makefile.in: Regenerate. > * python/Makefile.in: Regenerate. > * src/Makefile.am (AM_CXXFLAGS_LT): New definition. > (CXXLINK): Update to use AM_CXXFLAGS_LT instead of AM_CXXFLAGS. > * src/Makefile.in: Regenerate. > * src/c++11/Makefile.in: Regenerate. > * src/c++17/Makefile.in: Regenerate. > * src/c++20/Makefile.in: Regenerate. > * src/c++98/Makefile.in: Regenerate. > * src/filesystem/Makefile.in: Regenerate. > * testsuite/Makefile.in: Regenerate.
