Merge pull request numpy#20714 from charris/backport-20712

charris · web-flow · commit f9d73fe6e04f · 2022-01-02T21:15:48.000-07:00
BUG: Restore vc141 support
diff --git a/numpy/core/src/npymath/npy_math_internal.h.src b/numpy/core/src/npymath/npy_math_internal.h.src
@@ -54,6 +54,9 @@
  * ====================================================
  */
 #include "npy_math_private.h"
+#ifdef _MSC_VER
+#  include <intrin.h>   // for __popcnt
+#endif
 
 /* Magic binary numbers used by bit_count
  * For type T, the magic numbers are computed as follows:
