Add a "fork" of musl as //fusl.

fusl/include/sys/sysinfo.h

Index: fusl/include/sys/sysinfo.h
diff --git a/fusl/include/sys/sysinfo.h b/fusl/include/sys/sysinfo.h
new file mode 100644
index 0000000000000000000000000000000000000000..6a3931e52010de051f66e0dd8249590baf117eb7
--- /dev/null
+++ b/fusl/include/sys/sysinfo.h
@@ -0,0 +1,36 @@
+#ifndef _SYS_SYSINFO_H
+#define _SYS_SYSINFO_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SI_LOAD_SHIFT 16
+
+struct sysinfo {
+	unsigned long uptime;
+	unsigned long loads[3];
+	unsigned long totalram;
+	unsigned long freeram;
+	unsigned long sharedram;
+	unsigned long bufferram;
+	unsigned long totalswap;
+	unsigned long freeswap;
+	unsigned short procs, pad;
+	unsigned long totalhigh;
+	unsigned long freehigh;
+	unsigned mem_unit;
+	char __reserved[256];
+};
+
+int sysinfo (struct sysinfo *);
+int get_nprocs_conf (void);
+int get_nprocs (void);
+long get_phys_pages (void);
+long get_avphys_pages (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif