> Unfortunately it's not OK, these are the most annoying/delicate dependencies,
> so
> we'd rather not reintroduce them. I'll instead update prerequisites to
> document that GCC 5.1 or later is required to build GNAT.
Now pushed on master:
Update prerequisites for GNAT
* doc/install.texi: Update prerequisites for GNAT
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 54ad7c7..96b4dfc 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -263,7 +263,7 @@ name of the package depends on your distro) or you must
build GCC as a
@item @anchor{GNAT-prerequisite}GNAT
In order to build GNAT, the Ada compiler, you need a working GNAT
-compiler (GCC version 4.7 or later).
+compiler (GCC version 5.1 or later).
This includes GNAT tools such as @command{gnatmake} and
@command{gnatlink}, since the Ada front end is written in Ada and
