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$NetBSD: patch-include_mgba-util_math.h,v 1.1 2018/08/12 14:25:09 nia Exp $
NetBSD defines popcount32 in libc.
--- include/mgba-util/math.h.orig 2017-07-16 19:04:50.000000000 +0000
+++ include/mgba-util/math.h
@@ -10,11 +10,15 @@
CXX_GUARD_START
+#ifndef __NetBSD__
static inline uint32_t popcount32(unsigned bits) {
bits = bits - ((bits >> 1) & 0x55555555);
bits = (bits & 0x33333333) + ((bits >> 2) & 0x33333333);
return (((bits + (bits >> 4)) & 0xF0F0F0F) * 0x1010101) >> 24;
}
+#else
+unsigned int popcount32(uint32_t);
+#endif
static inline unsigned clz32(uint32_t bits) {
#if defined(__GNUC__) || __clang__
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