Update the section on binutils version

LTO usage requires binutils 2.35 or newer due to
https://sourceware.org/PR25355.
This adds a note in the prerequisites page about it.

Ok?

gcc/ChangeLog:

	* doc/install.texi: Add note about
	binutils 2.35 is required for LTO usage.

diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 88e453c3f6b6714f8ec4bfb1cd01816e15bd1991..a141507c7b05d6877145815845d26f7e94b67773 100644 (file)
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -325,6 +325,9 @@ Necessary in some circumstances, optional in others.  See the
 host/target specific instructions for your platform for the exact
 requirements.
 
+Note binutils 2.35 or newer is required for LTO to work correctly
+with GNU libtool that includes doing a bootstrap with LTO enabled.
+
 @item gzip version 1.2.4 (or later) or
 @itemx bzip2 version 1.0.2 (or later)