$NetBSD: patch-libgcc_config.host,v 1.2 2022/02/02 22:07:28 mrg Exp $

This is needed for arm64 to get Out-of-line LSE atomics linked into libgcc.
libsupc++ fails to link without this, and for arm to build.

--- libgcc/config.host.orig	2021-04-08 04:56:29.805761640 -0700
+++ libgcc/config.host	2022-02-02 04:08:51.653635705 -0800
@@ -377,6 +377,7 @@
 aarch64*-*-netbsd*)
 	extra_parts="$extra_parts crtfastmath.o"
 	tmake_file="${tmake_file} ${cpu_type}/t-aarch64"
+	tmake_file="${tmake_file} ${cpu_type}/t-lse"
 	tmake_file="${tmake_file} ${cpu_type}/t-softfp t-softfp t-crtfm"
 	md_unwind_header=aarch64/aarch64-unwind.h
 	;;
@@ -463,7 +464,8 @@
 	case ${host} in
 	  arm*-*-netbsdelf-*eabi*)
 	    tmake_file="${tmake_file} arm/t-netbsd-eabi"
-	    unwind_header=config/arm/unwind-arm.h
+	    # GCC 7 vs NetBSD/eabi -> avoid arm unwinder
+	    #unwind_header=config/arm/unwind-arm.h
 	    ;;
 	  *)
 	    tmake_file="${tmake_file} arm/t-netbsd t-slibgcc-gld-nover"