From 27e5cc98fe6c2c930efa571f38f101f0b16a5c7b Mon Sep 17 00:00:00 2001
From: Raghuveer Devulapalli <raghuveer.devulapalli@intel.com>
Date: Thu, 19 Oct 2023 10:15:57 -0700
Subject: [PATCH] Explicitly initialize with zmm_vector<uint64_t> for arg
 methods on macOS

---
 src/avx512-common-argsort.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/avx512-common-argsort.h b/src/avx512-common-argsort.h
index aa90c748..18e1a0e6 100644
--- a/src/avx512-common-argsort.h
+++ b/src/avx512-common-argsort.h
@@ -12,9 +12,17 @@
 #include <stdio.h>
 #include <vector>
 
+/* Workaround for NumPy failed build on macOS x86_64: implicit instantiation of
+ * undefined template 'zmm_vector<unsigned long>'*/
+#ifdef __APPLE__
+using argtype = typename std::conditional<sizeof(arrsize_t) == sizeof(int32_t),
+                                          ymm_vector<uint32_t>,
+                                          zmm_vector<uint64_t>>::type;
+#else
 using argtype = typename std::conditional<sizeof(arrsize_t) == sizeof(int32_t),
                                           ymm_vector<arrsize_t>,
                                           zmm_vector<arrsize_t>>::type;
+#endif
 using argreg_t = typename argtype::reg_t;
 
 /*