[xen0n: this is https://github.com/sunhaiyong1978/CLFS-for-LoongArch/blob/1.0/patches/stack-direction-add-loongarch.patch with line number tweak, and change to generated file added as well.]
From: Sun Haiyong <youbest@sina.com>
Date: Tue, 31 Aug 2021 11:11:52 +0800
Subject: [PATCH] stack-direction: Add support for loongarch CPU

* m4/stack-direction.m4 (SV_STACK_DIRECTION): When the CPU is loongarch,
set "sv_cv_stack_direction" to "-1" .
--- a/m4/stack-direction.m4
+++ b/m4/stack-direction.m4
@@ -31,6 +31,7 @@ AC_DEFUN([SV_STACK_DIRECTION],
       i?86 | x86_64 | \
       i860 | \
       ia64 | \
+      loongarch* | \
       m32r | \
       m68* | \
       m88k | \
--- a/configure
+++ b/configure
@@ -46399,6 +46399,7 @@ else $as_nop
       i?86 | x86_64 | \
       i860 | \
       ia64 | \
+      loongarch* | \
       m32r | \
       m68* | \
       m88k | \
-- 
2.17.2