From 5dcbec085671abaa3f0d8355147ddf10b34a8ae3 Mon Sep 17 00:00:00 2001
From: Perceval Faramaz <perfaram@windowslive.com>
Date: Mon, 13 Mar 2017 17:17:42 +0100
Subject: [PATCH] Made count_processor compatible w/ macOS

---
 vanitygen.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/vanitygen.c b/vanitygen.c
index aadb3c6..dc81658 100644
--- a/vanitygen.c
+++ b/vanitygen.c
@@ -43,6 +43,10 @@
 
 #include "custom_ec_bn.h"
 
+#if defined(__APPLE__)
+#include <sys/sysctl.h>
+#endif
+
 const char *version = VANITYGEN_VERSION;
 
 const enum compressiontype{
@@ -425,9 +429,14 @@ vg_thread_loop(void *arg)
 int
 count_processors(void)
 {
+	int count = 0;
+
+#if defined(__APPLE__)
+	size_t count_len = sizeof(count);
+	sysctlbyname("hw.logicalcpu", &count, &count_len, NULL, 0);
+#else
 	FILE *fp;
 	char buf[512];
-	int count = 0;
 
 	fp = fopen("/proc/cpuinfo", "r");
 	if (!fp)
@@ -438,6 +447,8 @@ count_processors(void)
 			count += 1;
 	}
 	fclose(fp);
+#endif
+
 	return count;
 }
 #endif