diff --git a/audio/audio_pt_int.c b/audio/audio_pt_int.c
index 908c569..9a9c306 100644
--- a/audio/audio_pt_int.c
+++ b/audio/audio_pt_int.c
@@ -6,8 +6,6 @@
 #include "audio_int.h"
 #include "audio_pt_int.h"
 
-#include <signal.h>
-
 static void GCC_FMT_ATTR(3, 4) logerr (struct audio_pt *pt, int err,
                                        const char *fmt, ...)
 {
diff --git a/audio/sdlaudio.c b/audio/sdlaudio.c
index a847aa9..d24daa5 100644
--- a/audio/sdlaudio.c
+++ b/audio/sdlaudio.c
@@ -32,7 +32,6 @@
 #elif defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
 #include <pthread.h>
 #endif
-#include <signal.h>
 #endif
 
 #define AUDIO_CAP "sdl"
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 6b72470..9a72a17 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -43,7 +43,6 @@
 
 #ifdef __sun__
 #define _POSIX_PTHREAD_SEMANTICS 1
-#include <signal.h>
 #include <sys/dkio.h>
 #endif
 #ifdef __linux__
@@ -53,7 +52,6 @@
 #include <linux/fd.h>
 #endif
 #if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include <signal.h>
 #include <sys/disk.h>
 #include <sys/cdio.h>
 #endif
diff --git a/bsd-user/syscall.c b/bsd-user/syscall.c
index eb1cdf2..d4d039a 100644
--- a/bsd-user/syscall.c
+++ b/bsd-user/syscall.c
@@ -31,7 +31,6 @@
 #include <sys/syscall.h>
 #include <sys/param.h>
 #include <sys/sysctl.h>
-#include <signal.h>
 #include <utime.h>
 
 #include "qemu.h"
diff --git a/darwin-user/signal.c b/darwin-user/signal.c
index 4862018..e2adca3 100644
--- a/darwin-user/signal.c
+++ b/darwin-user/signal.c
@@ -21,7 +21,6 @@
 #include <string.h>
 #include <stdarg.h>
 #include <unistd.h>
-#include <signal.h>
 #include <errno.h>
 #include <sys/ucontext.h>
 
@@ -32,8 +31,6 @@
 #undef uc_link
 #endif
 
-#include <signal.h>
-
 #include "qemu.h"
 #include "qemu-common.h"
 
diff --git a/exec.c b/exec.c
index 8529390..bb8334c 100644
--- a/exec.c
+++ b/exec.c
@@ -36,7 +36,6 @@
 #include "qemu-timer.h"
 #if defined(CONFIG_USER_ONLY)
 #include <qemu.h>
-#include <signal.h>
 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 #include <sys/param.h>
 #if __FreeBSD_version >= 700104
diff --git a/linux-user/signal.c b/linux-user/signal.c
index c7a375f..11b25be 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -21,7 +21,6 @@
 #include <string.h>
 #include <stdarg.h>
 #include <unistd.h>
-#include <signal.h>
 #include <errno.h>
 #include <assert.h>
 #include <sys/ucontext.h>
diff --git a/net/tap.c b/net/tap.c
index b8cd252..1f26dc9 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -27,7 +27,6 @@
 
 #include "config-host.h"
 
-#include <signal.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
diff --git a/posix-aio-compat.c b/posix-aio-compat.c
index f3cc868..c4116e3 100644
--- a/posix-aio-compat.c
+++ b/posix-aio-compat.c
@@ -17,7 +17,6 @@
 #include <unistd.h>
 #include <errno.h>
 #include <time.h>
-#include <signal.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/qemu-char.c b/qemu-char.c
index 5e04a20..fb13b28 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -35,7 +35,6 @@
 
 #include <unistd.h>
 #include <fcntl.h>
-#include <signal.h>
 #include <time.h>
 #include <errno.h>
 #include <sys/time.h>
diff --git a/qemu-progress.c b/qemu-progress.c
index 8ebe8ef..5f1b8df 100644
--- a/qemu-progress.c
+++ b/qemu-progress.c
@@ -26,7 +26,6 @@
 #include "osdep.h"
 #include "sysemu.h"
 #include <stdio.h>
-#include <signal.h>
 
 struct progress_state {
     float current;
diff --git a/savevm.c b/savevm.c
index f4ff1a1..939845c 100644
--- a/savevm.c
+++ b/savevm.c
@@ -23,7 +23,6 @@
  */
 #include <unistd.h>
 #include <fcntl.h>
-#include <signal.h>
 #include <time.h>
 #include <errno.h>
 #include <sys/time.h>
diff --git a/target-i386/helper.c b/target-i386/helper.c
index 89df997..ca4ec08 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -21,7 +21,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <inttypes.h>
-#include <signal.h>
 
 #include "cpu.h"
 #include "exec-all.h"
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 4700632..cf2a368 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -21,7 +21,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <inttypes.h>
-#include <signal.h>
 
 #include "cpu.h"
 #include "exec-all.h"
diff --git a/target-sparc/helper.c b/target-sparc/helper.c
index b2d4d70..e9b42d0 100644
--- a/target-sparc/helper.c
+++ b/target-sparc/helper.c
@@ -21,7 +21,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <inttypes.h>
-#include <signal.h>
 
 #include "cpu.h"
 #include "exec-all.h"
diff --git a/ui/curses.c b/ui/curses.c
index 82bc614..d29b6cf 100644
--- a/ui/curses.c
+++ b/ui/curses.c
@@ -24,7 +24,6 @@
 #include <curses.h>
 
 #ifndef _WIN32
-#include <signal.h>
 #include <sys/ioctl.h>
 #include <termios.h>
 #endif
diff --git a/ui/sdl.c b/ui/sdl.c
index 14a62d9..f2bd4a0 100644
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -28,10 +28,6 @@
 #include <SDL.h>
 #include <SDL_syswm.h>
 
-#ifndef _WIN32
-#include <signal.h>
-#endif
-
 #include "qemu-common.h"
 #include "console.h"
 #include "sysemu.h"
diff --git a/usb-bsd.c b/usb-bsd.c
index 9bab6e3..c1bcc4a 100644
--- a/usb-bsd.c
+++ b/usb-bsd.c
@@ -39,7 +39,6 @@
 #else
 #include <bus/usb/usb.h>
 #endif
-#include <signal.h>
 
 /* This value has maximum potential at 16.
  * You should also set hw.usb.debug to gain
diff --git a/usb-linux.c b/usb-linux.c
index baa6574..fcfa09e 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -37,7 +37,6 @@
 
 #include <dirent.h>
 #include <sys/ioctl.h>
-#include <signal.h>
 
 #include <linux/usbdevice_fs.h>
 #include <linux/version.h>
