install.texi: Update GCN's newlib requirements

GCN requires 4.3.0 or newer, but improvements and bug fixes were added
in later versions; before 4.3.0 was listed as required and several versions
up to post-4.5.0 commits were mentioned. Now that 4.6.0 has been released,
just referring to 4.6.0 is sufficient. As fixes are important and there is no
real reason to use an older Newlib: Only list 4.6.0+ as to be used,
instead of also mentioning 4.3.0+ (and other older releases).

gcc/ChangeLog:

	* doc/install.texi (gcn): Require Newlib 4.6.0+, replacing 4.3.0+
	requirement with long list of recommended fixes up to post-4.5.0.

diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index cec3e5b2b56567c44cbab9abd73a8358ebf8708c..6404105fbba957cd6f64a725c203311ed8e7010f 100644 (file)
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -4176,10 +4176,7 @@ that @code{gfx9-generic} does not include @code{gfx908} or @code{gfx90a},
 that linking specific ISA code with generic code is currently not supported,
 and that only ROCm 6.4.0 or newer is able to execute generic code.
 
-Use Newlib (4.3.0 or newer; 4.4.0 contains some improvements and 4.5.0 fixes
-the device console output for GFX10 and GFX11 devices; post-4.5.0
-commits 2ef1a37e7 [Mar 25, 2025], f13e8e215 [Aug 8, 2025], and
-bd409f3c1 [Aug 27, 2025] fix SIMD math issues).
+Use Newlib (4.6.0 or newer).
 
 To run the binaries, install the HSA Runtime from the
 @uref{https://rocm.docs.amd.com/,,ROCm Platform}, and use