On NetBSD 9.3/arm64, I see the attached test failures of fenv* tests.

This patch fixes them all.


2024-01-19  Bruno Haible  <bruno@clisp.org>

	fenv-*: Fix test failures on NetBSD 9.3/arm64.
	* m4/fenv-exceptions-trapping.m4 (gl_FENV_EXCEPTIONS_TRAPPING): Override
	feenableexcept() also on NetBSD/arm64.
	* doc/glibc-functions/feenableexcept.texi: Update platforms list.

diff --git a/doc/glibc-functions/feenableexcept.texi b/doc/glibc-functions/feenableexcept.texi
index 0c98c5c844..a306a904e5 100644
--- a/doc/glibc-functions/feenableexcept.texi
+++ b/doc/glibc-functions/feenableexcept.texi
@@ -26,7 +26,7 @@
 macOS 11.1, musl libc, FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 11.4, Cygwin 1.7.7, mingw, MSVC 14, Android 4.4.
 @item
 This function does not detect failures on
-glibc 2.19/aarch64, FreeBSD 12.2/arm, FreeBSD 12.2/arm64.
+glibc 2.19/aarch64, FreeBSD 12.2/arm, FreeBSD 12.2/arm64, NetBSD 9.3/arm64.
 @end itemize
 
 Portability problems not fixed by Gnulib:
diff --git a/m4/fenv-exceptions-trapping.m4 b/m4/fenv-exceptions-trapping.m4
index 784bed1697..cd9c96674f 100644
--- a/m4/fenv-exceptions-trapping.m4
+++ b/m4/fenv-exceptions-trapping.m4
@@ -1,4 +1,4 @@
-# fenv-exceptions-trapping.m4 serial 1
+# fenv-exceptions-trapping.m4 serial 2
 dnl Copyright (C) 2023-2024 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -17,7 +17,7 @@ AC_DEFUN_ONCE([gl_FENV_EXCEPTIONS_TRAPPING]
     dnl On glibc 2.19/aarch64, feenableexcept does not detect failures.
     dnl Fixed through
     dnl <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=302949e2940a9da3f6364a1574619e621b7e1e71>.
-    dnl Similarly on FreeBSD 12.2/arm and FreeBSD 12.2/arm64.
+    dnl Similarly on FreeBSD 12.2/arm, FreeBSD 12.2/arm64, NetBSD 9.3/arm64.
     case "$host" in
       aarch64*-*-linux*)
         AC_CACHE_CHECK([whether feenableexcept works],
@@ -41,7 +41,7 @@ AC_DEFUN_ONCE([gl_FENV_EXCEPTIONS_TRAPPING]
           *) REPLACE_FEENABLEEXCEPT=1 ;;
         esac
         ;;
-      arm*-*-freebsd* | aarch64*-*-freebsd*)
+      arm*-*-freebsd* | aarch64*-*-freebsd* | aarch64*-*-netbsd*)
         REPLACE_FEENABLEEXCEPT=1
         ;;
     esac