From ceb805011747d04a915f3f39e4bed9eed151c634 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Sat, 7 Jan 2023 19:31:15 +0200
Subject: Build: Require that _mm_set_epi64x() is usable to enable CLMUL
 support.

VS2013 doesn't have _mm_set_epi64x() so this way CLMUL gets
disabled with VS2013.

Thanks to Iouri Kharon for the bug report.
---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3a58d740..ef17563e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -434,8 +434,9 @@ if(HAVE_IMMINTRIN_H)
             #if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
             __attribute__((__target__(\"ssse3,sse4.1,pclmul\")))
             #endif
-            __m128i my_clmul(__m128i a, __m128i b)
+            __m128i my_clmul(__m128i a)
             {
+                const __m128i b = _mm_set_epi64x(1, 2);
                 return _mm_clmulepi64_si128(a, b, 0);
             }
             int main(void) { return 0; }
-- 
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