Merge pull request #2 from jserv/macos-support

Don't assume availability of get_nprocs_conf()

src/pow_sse.c

@@ -29,11 +29,28 @@
 #include <stdio.h>
 #include <string.h>
 #include <pthread.h>
-#include <sys/sysinfo.h>
 #include "pow_sse.h"
 #include "./hash/curl.h"
 #include "constants.h"
 
+/* Required for get_nprocs_conf() on Linux */
+#ifdef NPROCS
+#include <sys/sysinfo.h>
+#endif
+
+/* On Mac OS X, define our own get_nprocs_conf() */
+#if defined (__APPLE__) || defined(__FreeBSD__)
+#include <sys/sysctl.h>
+unsigned int get_nprocs_conf()
+{
+	int numProcessors = 0;
+	size_t size = sizeof(numProcessors);
+	if (sysctlbyname("hw.ncpu", &numProcessors, &size, NULL, 0)) return 1;
+	return (unsigned int) numProcessors;
+}
+#define NPROCS
+#endif
+
 pthread_mutex_t *pow_sse_mutex;
 int *stopSSE;
 long long int *countSSE;