deps: fixup win arm64 build for ngtcp2/nghttp3

Author: jasnell

deps/nghttp3/lib/nghttp3_ringbuf.c

@@ -33,21 +33,25 @@
 
 #include "nghttp3_macro.h"
 
-#if defined(_MSC_VER) && defined(_M_ARM64)
-unsigned int __popcnt(unsigned int x) {
+#if defined(_WIN32)
+#  if defined(_M_ARM64)
+unsigned int __nghttp3_popcnt(unsigned int x) {
   unsigned int c = 0;
   for (; x; ++c) {
     x &= x - 1;
   }
   return c;
 }
+#  else
+#    define __nghttp3_popcnt __popcnt
+#  endif
 #endif
 
 int nghttp3_ringbuf_init(nghttp3_ringbuf *rb, size_t nmemb, size_t size,
                          const nghttp3_mem *mem) {
   if (nmemb) {
 #ifdef WIN32
-    assert(1 == __popcnt((unsigned int)nmemb));
+    assert(1 == __nghttp3_popcnt((unsigned int)nmemb));
 #else
     assert(1 == __builtin_popcount((unsigned int)nmemb));
 #endif
@@ -127,7 +131,7 @@ int nghttp3_ringbuf_reserve(nghttp3_ringbuf *rb, size_t nmemb) {
   }
 
 #ifdef WIN32
-  assert(1 == __popcnt((unsigned int)nmemb));
+  assert(1 == __nghttp3_popcnt((unsigned int)nmemb));
 #else
   assert(1 == __builtin_popcount((unsigned int)nmemb));
 #endif

deps/ngtcp2/lib/ngtcp2_ringbuf.c

@@ -31,20 +31,24 @@
 
 #include "ngtcp2_macro.h"
 
-#if defined(_MSC_VER) && defined(_M_ARM64)
-unsigned int __popcnt(unsigned int x) {
+#if defined(_WIN32)
+#  if defined(_M_ARM64)
+unsigned int __ngtcp2_popcnt(unsigned int x) {
   unsigned int c = 0;
   for (; x; ++c) {
     x &= x - 1;
   }
   return c;
 }
+#  else
+#    define __ngtcp2_popcnt __popcnt
+#  endif
 #endif
 
 int ngtcp2_ringbuf_init(ngtcp2_ringbuf *rb, size_t nmemb, size_t size,
                         const ngtcp2_mem *mem) {
 #ifdef WIN32
-  assert(1 == __popcnt((unsigned int)nmemb));
+  assert(1 == __ngtcp2_popcnt((unsigned int)nmemb));
 #else
   assert(1 == __builtin_popcount((unsigned int)nmemb));
 #endif