diff --git a/libc/include/syslog.h b/libc/include/syslog.h
index f396fec..cbceab2 100644
--- a/libc/include/syslog.h
+++ b/libc/include/syslog.h
@@ -35,45 +35,48 @@
 
 __BEGIN_DECLS
 
-#define LOG_EMERG	0
-#define LOG_ALERT	1
-#define LOG_CRIT	2
-#define LOG_ERR		3
-#define LOG_WARNING	4
-#define LOG_NOTICE	5
-#define LOG_INFO	6
-#define LOG_DEBUG	7
+/* Priorities are translated to Android log priorities as shown. */
+#define LOG_EMERG   0 /* ERROR */
+#define LOG_ALERT   1 /* ERROR */
+#define LOG_CRIT    2 /* ERROR */
+#define LOG_ERR     3 /* ERROR */
+#define LOG_WARNING 4 /* WARN */
+#define LOG_NOTICE  5 /* INFO */
+#define LOG_INFO    6 /* INFO */
+#define LOG_DEBUG   7 /* DEBUG */
 
-#define LOG_PRIMASK	7
-#define LOG_PRI(x)	((x) & LOG_PRIMASK)
+#define LOG_PRIMASK 7
+#define LOG_PRI(x) ((x) & LOG_PRIMASK)
 
-#define LOG_KERN	0000
-#define LOG_USER	0010
-#define LOG_MAIL	0020
-#define LOG_DAEMON	0030
-#define LOG_AUTH	0040
-#define LOG_SYSLOG	0050
-#define LOG_LPR		0060
-#define LOG_NEWS	0070
-#define LOG_UUCP	0100
-#define LOG_CRON	0110
-#define LOG_AUTHPRIV	0120
-#define LOG_FTP		0130
-#define LOG_LOCAL0	0200
-#define LOG_LOCAL1	0210
-#define LOG_LOCAL2	0220
-#define LOG_LOCAL3	0230
-#define LOG_LOCAL4	0240
-#define LOG_LOCAL5	0250
-#define LOG_LOCAL6	0260
-#define LOG_LOCAL7	0270
+/* Facilities are currently ignored on Android. */
+#define LOG_KERN     0000
+#define LOG_USER     0010
+#define LOG_MAIL     0020
+#define LOG_DAEMON   0030
+#define LOG_AUTH     0040
+#define LOG_SYSLOG   0050
+#define LOG_LPR      0060
+#define LOG_NEWS     0070
+#define LOG_UUCP     0100
+#define LOG_CRON     0110
+#define LOG_AUTHPRIV 0120
+#define LOG_FTP      0130
+#define LOG_LOCAL0   0200
+#define LOG_LOCAL1   0210
+#define LOG_LOCAL2   0220
+#define LOG_LOCAL3   0230
+#define LOG_LOCAL4   0240
+#define LOG_LOCAL5   0250
+#define LOG_LOCAL6   0260
+#define LOG_LOCAL7   0270
 
-#define LOG_FACMASK	01770
-#define LOG_FAC(x)	(((x) >> 3) & (LOG_FACMASK >> 3))
+#define LOG_FACMASK 01770
+#define LOG_FAC(x) (((x) >> 3) & (LOG_FACMASK >> 3))
 
 #define LOG_MASK(pri) (1 << (pri))
 #define LOG_UPTO(pri) ((1 << ((pri)+1)) - 1)
 
+/* openlog(3) flags are currently ignored on Android. */
 #define LOG_PID    0x01
 #define LOG_CONS   0x02
 #define LOG_ODELAY 0x04
@@ -81,11 +84,11 @@
 #define LOG_NOWAIT 0x10
 #define LOG_PERROR 0x20
 
-extern void closelog(void);
-extern void openlog(const char*, int, int);
-extern int setlogmask(int);
-extern void syslog(int, const char*, ...) __printflike(2, 3);
-extern void vsyslog(int, const char*, va_list) __printflike(2, 0);
+void closelog(void);
+void openlog(const char*, int, int);
+int setlogmask(int);
+void syslog(int, const char*, ...) __printflike(2, 3);
+void vsyslog(int, const char*, va_list) __printflike(2, 0);
 
 __END_DECLS