As Jakub also pointed out, there are various places where our BUGURL is defined (not just used).
For libstdc++, Jonathan already filed gcc.gnu.org/PR79422, and I'll tackle the others one by one, involving the respective maintainers to see whether there is more to be done than just updating the string. Gerald 2017-02-09 Gerald Pfeifer <ger...@pfeifer.com> * configure.ac (ACX_BUGURL): Update. * configure: Regenerate. Index: configure.ac =================================================================== --- configure.ac (revision 245295) +++ configure.ac (working copy) @@ -930,7 +930,7 @@ AC_SUBST(CONFIGURE_SPECS) ACX_PKGVERSION([GCC]) -ACX_BUGURL([http://gcc.gnu.org/bugs.html]) +ACX_BUGURL([https://gcc.gnu.org/bugs/]) # Sanity check enable_languages in case someone does not run the toplevel # configure # script. Index: configure =================================================================== --- configure (revision 245295) +++ configure (working copy) @@ -7655,7 +7655,7 @@ ;; esac else - BUGURL="http://gcc.gnu.org/bugs.html" + BUGURL="https://gcc.gnu.org/bugs/" fi