From 2bea592952b8a9f9860bb646ddf72d26eac4ad29 Mon Sep 17 00:00:00 2001
From: umarcor <38422348+umarcor@users.noreply.github.com>
Date: Fri, 10 Apr 2020 07:48:47 +0200
Subject: update doc (synth, overview, generics, etc.) (#1205)

* doc: extend info about setting generics through the CLI

* doc: rename 'Command Reference' to 'Additional Command Reference'

* doc: use '``' instead of ':samp:'

* doc: update info about synthesis

* doc: add references to sources in internals/Overview

* doc: add diagram to internals/Overview
---
 doc/getting/index.rst | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'doc/getting')

diff --git a/doc/getting/index.rst b/doc/getting/index.rst
index f64e44caf..591c4d95e 100644
--- a/doc/getting/index.rst
+++ b/doc/getting/index.rst
@@ -10,13 +10,18 @@ GHDL can be downloaded as a `zip-file <https://github.com/ghdl/ghdl/archive/mast
 offers HTTPS and SSH as transfer protocols. See the :ref:`RELEASE:Sources`
 page for further details.
 
-.. IMPORTANT ::
+.. IMPORTANT::
    Since GHDL is written in `Ada`, independently of the code generator you use,
    the a compiler is required. Most GNU/Linux package managers provide a package
    named ``gcc-ada`` or ``gcc-gnat``. Alternatively, `GNU Ada compiler`, `GNAT GPL`,
    can be downloaded anonymously from `libre.adacore.com <http://libre.adacore.com/tools/gnat-gpl-edition/>`_ (2014, or later; for x86, 32 or 64 bits).
    Then, untar and run the doinstall script.
 
+.. ATTENTION::
+   Since ``v0.37``, GHDL's synthesis features require GCC >=8.1, due to some new GNAT features which
+   are not available in previous releases. Users with older versions (who don't need synthesis)
+   can configure GHDL with option ``--no-synth``.
+
 .. rubric :: Available back-ends
 
 GHDL currently supports three different back-ends (code generators):
-- 
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