[Bug libstdc++/99172] New: Build failure with slibtool and vtv

[gcc-user at riseup dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99172

            Bug ID: 99172
           Summary: Build failure with slibtool and vtv
           Product: gcc
           Version: 10.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gcc-user at riseup dot net
  Target Milestone: ---

Created attachment 50227
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50227&action=edit
Full build log.

When building gcc with slibtool (https://dev.midipix.org/cross/slibtool) the
build will fail in the libstdc++.la make target in libstdc++-v3/src.

  /usr/x86_64-pc-linux-gnu/bin/ld: cannot find -lvtv

This doesn't occur with GNU libtool because it silently filters out the invalid
-lvtv while slibtool does not. I attached a full build log.

Also see this gentoo issue.

https://bugs.gentoo.org/767706

To build gcc with slibtool:

  export MAKE='make LIBTOOL=rdlibtool'

Unfortunately gcc doesn't respect the value of the MAKEFLAGS environment
variable.