https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87359
Bug ID: 87359 Summary: [9.0 regression] pointer being freed was not allocated Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: juergen.reuter at desy dot de Target Milestone: --- There is a severe regression introduced in the last 2-3 weeks (maybe through one of the bug fixes by Paul Thomas?) leading to a huge number of failures in our test suite. I will try to isolate it, but it can also be checked by downloading https://whizard.hepforge.org/downloads/?f=whizard-2.6.4.tar.gz (you need OCaml for most of the tests, but not for all, many of the unit tests already fail without OCaml being present, you can then configure with --disable-ocaml). Do configure, make, make check.