diff --git a/usr.sbin/ppp/arp.c b/usr.sbin/ppp/arp.c
index fbf38d01553b..9f370273b6a9 100644
--- a/usr.sbin/ppp/arp.c
+++ b/usr.sbin/ppp/arp.c
@@ -38,9 +38,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/bundle.c b/usr.sbin/ppp/bundle.c
index 4992d4ce925f..072b5c384618 100644
--- a/usr.sbin/ppp/bundle.c
+++ b/usr.sbin/ppp/bundle.c
@@ -40,9 +40,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <paths.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/chat.c b/usr.sbin/ppp/chat.c
index d5f50b1814db..86fd40b375d1 100644
--- a/usr.sbin/ppp/chat.c
+++ b/usr.sbin/ppp/chat.c
@@ -35,9 +35,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <paths.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/command.c b/usr.sbin/ppp/command.c
index 276ecd8561f9..45e0bcc5a44a 100644
--- a/usr.sbin/ppp/command.c
+++ b/usr.sbin/ppp/command.c
@@ -34,9 +34,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <paths.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/defs.c b/usr.sbin/ppp/defs.c
index 257b9ce5de0b..740fc628d460 100644
--- a/usr.sbin/ppp/defs.c
+++ b/usr.sbin/ppp/defs.c
@@ -35,9 +35,6 @@
 
 #include <ctype.h>
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdlib.h>
 #include <string.h>
 #include <termios.h>
diff --git a/usr.sbin/ppp/exec.c b/usr.sbin/ppp/exec.c
index b7e6607f1bd0..de9e6324d518 100644
--- a/usr.sbin/ppp/exec.c
+++ b/usr.sbin/ppp/exec.c
@@ -32,9 +32,6 @@
 
 #include <errno.h>
 #include <fcntl.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/i4b.c b/usr.sbin/ppp/i4b.c
index 14d34bb3e6b3..5e76c4fa1b48 100644
--- a/usr.sbin/ppp/i4b.c
+++ b/usr.sbin/ppp/i4b.c
@@ -42,9 +42,6 @@
 #include <i4b/i4b_ioctl.h>
 #include <i4b/i4b_rbch_ioctl.h>
 #endif
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/iface.c b/usr.sbin/ppp/iface.c
index f780ab02539c..ec57e4bbbf80 100644
--- a/usr.sbin/ppp/iface.c
+++ b/usr.sbin/ppp/iface.c
@@ -38,9 +38,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/usr.sbin/ppp/ip.c b/usr.sbin/ppp/ip.c
index eb0b9edb90d9..f1219d000d12 100644
--- a/usr.sbin/ppp/ip.c
+++ b/usr.sbin/ppp/ip.c
@@ -37,9 +37,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <string.h>
 #include <termios.h>
diff --git a/usr.sbin/ppp/ipcp.c b/usr.sbin/ppp/ipcp.c
index 9fadaa463a79..3efb315d8364 100644
--- a/usr.sbin/ppp/ipcp.c
+++ b/usr.sbin/ppp/ipcp.c
@@ -36,9 +36,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <resolv.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdlib.h>
 #include <string.h>
 #include <termios.h>
diff --git a/usr.sbin/ppp/mp.c b/usr.sbin/ppp/mp.c
index d145252a312d..43c5829451c2 100644
--- a/usr.sbin/ppp/mp.c
+++ b/usr.sbin/ppp/mp.c
@@ -37,9 +37,6 @@
 
 #include <errno.h>
 #include <paths.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/physical.c b/usr.sbin/ppp/physical.c
index 290391b78b58..2ee96eb7471f 100644
--- a/usr.sbin/ppp/physical.c
+++ b/usr.sbin/ppp/physical.c
@@ -29,9 +29,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <paths.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/prompt.c b/usr.sbin/ppp/prompt.c
index 0ceadf0e2788..5e39f00ff5fd 100644
--- a/usr.sbin/ppp/prompt.c
+++ b/usr.sbin/ppp/prompt.c
@@ -33,9 +33,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/usr.sbin/ppp/radius.c b/usr.sbin/ppp/radius.c
index a59342a85b84..366baec45944 100644
--- a/usr.sbin/ppp/radius.c
+++ b/usr.sbin/ppp/radius.c
@@ -36,9 +36,6 @@
 
 #include <errno.h>
 #include <radlib.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/route.c b/usr.sbin/ppp/route.c
index 530832ba40bf..688bcfe205b0 100644
--- a/usr.sbin/ppp/route.c
+++ b/usr.sbin/ppp/route.c
@@ -34,9 +34,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/server.c b/usr.sbin/ppp/server.c
index 2cf560a01991..0f6cb513e1a2 100644
--- a/usr.sbin/ppp/server.c
+++ b/usr.sbin/ppp/server.c
@@ -33,9 +33,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <string.h>
 #include <sys/stat.h>
diff --git a/usr.sbin/ppp/tcp.c b/usr.sbin/ppp/tcp.c
index 04a1fffbadbb..7fd53a73ad62 100644
--- a/usr.sbin/ppp/tcp.c
+++ b/usr.sbin/ppp/tcp.c
@@ -33,9 +33,6 @@
 #include <netdb.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/usr.sbin/ppp/tty.c b/usr.sbin/ppp/tty.c
index 158fb5fa4336..2ca27cc691f9 100644
--- a/usr.sbin/ppp/tty.c
+++ b/usr.sbin/ppp/tty.c
@@ -34,9 +34,6 @@
 
 #include <errno.h>
 #include <fcntl.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdlib.h>
 #include <string.h>
 #include <sysexits.h>
diff --git a/usr.sbin/ppp/tun.c b/usr.sbin/ppp/tun.c
index c45618f24c6a..c35894a6c207 100644
--- a/usr.sbin/ppp/tun.c
+++ b/usr.sbin/ppp/tun.c
@@ -39,9 +39,6 @@
 #include <sys/un.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <string.h>
 #if defined(__OpenBSD__) || defined(__NetBSD__)
 #include <sys/ioctl.h>
diff --git a/usr.sbin/ppp/udp.c b/usr.sbin/ppp/udp.c
index 59f6ceae74fc..2a84eb6fd6a3 100644
--- a/usr.sbin/ppp/udp.c
+++ b/usr.sbin/ppp/udp.c
@@ -33,9 +33,6 @@
 #include <netdb.h>
 
 #include <errno.h>
-#ifdef __NetBSD__
-#include <signal.h>	/* for `errno' ?!? */
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>