d/104749 - document host GDC version requirement

This documents that GDC 9.4 or later is required to build the D
language rather than GDC 9.1 which suffers from PR94240.

	PR d/104749
	* doc/install.texi (GDC): Document GDC 9.4 or later is required
	to build the D language frontend.

diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index ec31f0a..5c0214b 100644 (file)
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -287,7 +287,7 @@ section.
 @item @anchor{GDC-prerequisite}GDC
 
 In order to build GDC, the D compiler, you need a working GDC
-compiler (GCC version 9.1 or later) and D runtime library,
+compiler (GCC version 9.4 or later) and D runtime library,
 @samp{libphobos}, as the D front end is written in D.
 
 Versions of GDC prior to 12 can be built with an ISO C++11 compiler, which can