This patch from Peter Collingbourne changes the libgo install to get the version number from gccgo -dumpversion rather than looking at the BASE-VER file in the gcc source directory. Bootstrapped on x86_64-unknown-linux-gnu. Committed to mainline.
Ian
diff -r 21b8b46b67f2 libgo/Makefile.am --- a/libgo/Makefile.am Tue Oct 28 15:56:23 2014 -0700 +++ b/libgo/Makefile.am Mon Nov 03 08:29:13 2014 -0800 @@ -15,7 +15,7 @@ SUBDIRS = ${subdirs} -gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER) +gcc_version := $(shell $(GOC) -dumpversion) MAINT_CHARSET = latin1