From b18c815056e9b20175d44732bd7416f1fe6a931e Mon Sep 17 00:00:00 2001
From: Mika Lindqvist <postmaster@raasu.org>
Date: Sat, 9 Jul 2022 12:33:02 +0300
Subject: [PATCH] Treat arm64 as aarch64 for Apple M1.

---
 cmake/detect-arch.c | 2 +-
 configure           | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/cmake/detect-arch.c b/cmake/detect-arch.c
index 84e6a841..43ddb126 100644
--- a/cmake/detect-arch.c
+++ b/cmake/detect-arch.c
@@ -12,7 +12,7 @@
     #error archfound i686
 
 // ARM
-#elif defined(__aarch64__) || defined(_M_ARM64)
+#elif defined(__aarch64__) || defined(__arm64__) || defined(_M_ARM64)
     #error archfound aarch64
 #elif defined(__arm__) || defined(__arm) || defined(_M_ARM) || defined(__TARGET_ARCH_ARM)
     #if defined(__ARM64_ARCH_8__) || defined(__ARMv8__) || defined(__ARMv8_A__)
diff --git a/configure b/configure
index ffee4005..f28f1dba 100755
--- a/configure
+++ b/configure
@@ -359,7 +359,7 @@ if test "$gcc" -eq 1 && ($cc $CFLAGS -c $test.c) >> configure.log 2>&1; then
       else
         ARCH=native
       fi ;;
-    aarch64 | aarch64_be)
+    aarch64 | aarch64_be | arm64)
       if test "${uname}" = "elf"; then
         uname=aarch64
       fi
@@ -1125,7 +1125,7 @@ EOF
 
 check_neon_ld4_intrinsics() {
     if test $buildneon -eq 1 && test $native -eq 0; then
-        if test "$CC_ARCH" = "aarch64" || test "$CC_ARCH" = "aarch64_be"; then
+        if test "$CC_ARCH" = "aarch64" || test "$CC_ARCH" = "aarch64_be" || test "$CC_ARCH" = "arm64"; then
             neonflag="-march=armv8-a+simd"
         elif test $MFPU_NEON_AVAILABLE -eq 1; then
             neonflag="-mfpu=neon"
-- 
2.47.3