From 19cd67c1fa85f7ebfdc2db65ec25545d9ccdbcc3 Mon Sep 17 00:00:00 2001
From: Francois Kritzinger <francois@codesynthesis.com>
Date: Thu, 23 Mar 2023 15:18:52 +0200
Subject: [PATCH] Add HAVE_NEON

---
 .../libbuild2/autoconf/checks/HAVE_NEON.h            | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_NEON.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_NEON.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_NEON.h
new file mode 100644
index 0000000..0a1f695
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_NEON.h
@@ -0,0 +1,12 @@
+// HAVE_NEON
+
+#undef HAVE_NEON
+
+/* GCC, Clang: -mfpu={neon,neon-vfpv3,neon-vfpv4,neon-fp16,..}
+ *
+ * MSVC: Always enabled (and presumably defines at least one of
+ *       __ARM_NEON[__]).
+ */
+#if defined(__ARM_NEON) || defined(__ARM_NEON__)
+#  define HAVE_NEON 1
+#endif