Committed. Probably not worth backporting to the GCC 8, 7, and 6 branches?
Gerald 2018-09-01 Gerald Pfeifer <ger...@pfeifer.com> * doc/install.texi (Prerequisites): Update link for MPC. Index: doc/install.texi =================================================================== --- doc/install.texi (revision 264032) +++ doc/install.texi (working copy) @@ -378,7 +378,7 @@ @item MPC Library version 0.8.1 (or later) Necessary to build GCC@. It can be downloaded from -@uref{http://www.multiprecision.org/}. If an MPC source distribution +@uref{http://www.multiprecision.org/mpc/}. If an MPC source distribution is found in a subdirectory of your GCC sources named @file{mpc}, it will be built together with GCC. Alternatively, if MPC is already installed but it is not in your default library search path, the