diff --git a/gen-icount.h b/gen-icount.h
index 248cf5b16d..1541f0b1e4 100644
--- a/gen-icount.h
+++ b/gen-icount.h
@@ -1,3 +1,6 @@
+#ifndef GEN_ICOUNT_H
+#define GEN_ICOUNT_H 1
+
 #include "qemu-timer.h"
 
 /* Helpers for instruction counting code generation.  */
@@ -46,3 +49,5 @@ static inline void gen_io_end(void)
     tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUArchState, can_do_io));
     tcg_temp_free_i32(tmp);
 }
+
+#endif
diff --git a/host-utils.h b/host-utils.h
index 821db93671..a5f8464fb2 100644
--- a/host-utils.h
+++ b/host-utils.h
@@ -22,6 +22,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef HOST_UTILS_H
+#define HOST_UTILS_H 1
 
 #include "compiler.h"   /* QEMU_GNUC_PREREQ */
 
@@ -234,3 +236,5 @@ static inline int ctpop64(uint64_t val)
     return val;
 #endif
 }
+
+#endif
diff --git a/hw/9pfs/virtio-9p-synth.h b/hw/9pfs/virtio-9p-synth.h
index e03f434633..ab05a8e78c 100644
--- a/hw/9pfs/virtio-9p-synth.h
+++ b/hw/9pfs/virtio-9p-synth.h
@@ -10,6 +10,8 @@
  * the COPYING file in the top-level directory.
  *
  */
+#ifndef HW_9PFS_VIRTIO9P_SYNTH_H
+#define HW_9PFS_VIRTIO9P_SYNTH_H 1
 
 #include <unistd.h>
 #include <sys/types.h>
@@ -48,3 +50,5 @@ extern int qemu_v9fs_synth_mkdir(V9fsSynthNode *parent, int mode,
 extern int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode,
                                     const char *name, v9fs_synth_read read,
                                     v9fs_synth_write write, void *arg);
+
+#endif
diff --git a/hw/audiodev.h b/hw/audiodev.h
index ed2790f5f6..428274f929 100644
--- a/hw/audiodev.h
+++ b/hw/audiodev.h
@@ -1,3 +1,6 @@
+#ifndef HW_AUDIODEV_H
+#define HW_AUDIODEV_H 1
+
 /* es1370.c */
 int es1370_init(PCIBus *bus);
 
@@ -18,3 +21,5 @@ int cs4231a_init(ISABus *bus);
 
 /* intel-hda.c + hda-audio.c */
 int intel_hda_and_codec_init(PCIBus *bus);
+
+#endif
diff --git a/hw/baum.h b/hw/baum.h
index 8af710fa21..763588422a 100644
--- a/hw/baum.h
+++ b/hw/baum.h
@@ -21,6 +21,10 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef HW_BAUM_H
+#define HW_BAUM_H 1
 
 /* char device */
 CharDriverState *chr_baum_init(QemuOpts *opts);
+
+#endif
diff --git a/hw/bt.h b/hw/bt.h
index ebf6a370a1..830af94735 100644
--- a/hw/bt.h
+++ b/hw/bt.h
@@ -23,6 +23,9 @@
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef HW_BT_H
+#define HW_BT_H 1
+
 #include "hw/irq.h"
 
 /* BD Address */
@@ -2183,3 +2186,5 @@ enum bt_sdp_attribute_id {
     SDP_ATTR_NORMALLY_CONNECTABLE		= 0x020d,
     SDP_ATTR_BOOT_DEVICE			= 0x020e,
 };
+
+#endif
diff --git a/hw/cris-boot.h b/hw/cris-boot.h
index 5b17d83cbb..c4d3fa6f6f 100644
--- a/hw/cris-boot.h
+++ b/hw/cris-boot.h
@@ -1,3 +1,5 @@
+#ifndef _CRIS_BOOT_H
+#define HW_CRIS_BOOT_H 1
 
 struct cris_load_info
 {
@@ -9,3 +11,5 @@ struct cris_load_info
 };
 
 void cris_load_image(CRISCPU *cpu, struct cris_load_info *li);
+
+#endif
diff --git a/hw/empty_slot.h b/hw/empty_slot.h
index 4e9e460485..6079602cdf 100644
--- a/hw/empty_slot.h
+++ b/hw/empty_slot.h
@@ -1,2 +1,7 @@
+#ifndef HW_EMPTY_SLOT_H
+#define HW_EMPTY_SLOT_H 1
+
 /* empty_slot.c */
 void empty_slot_init(hwaddr addr, uint64_t slot_size);
+
+#endif
diff --git a/hw/escc.h b/hw/escc.h
index def28947a0..bda3213317 100644
--- a/hw/escc.h
+++ b/hw/escc.h
@@ -1,3 +1,6 @@
+#ifndef HW_ESCC_H
+#define HW_ESCC_H 1
+
 /* escc.c */
 #define ESCC_SIZE 4
 MemoryRegion *escc_init(hwaddr base, qemu_irq irqA, qemu_irq irqB,
@@ -6,3 +9,5 @@ MemoryRegion *escc_init(hwaddr base, qemu_irq irqA, qemu_irq irqB,
 
 void slavio_serial_ms_kbd_init(hwaddr base, qemu_irq irq,
                                int disabled, int clock, int it_shift);
+
+#endif
diff --git a/hw/etraxfs.h b/hw/etraxfs.h
index bc60713633..cc1d7a17a0 100644
--- a/hw/etraxfs.h
+++ b/hw/etraxfs.h
@@ -22,6 +22,9 @@
  * THE SOFTWARE.
  */
 
+#ifndef HW_EXTRAXFS_H
+#define HW_EXTRAXFS_H 1
+
 #include "net/net.h"
 #include "etraxfs_dma.h"
 
@@ -44,3 +47,5 @@ etraxfs_eth_init(NICInfo *nd, hwaddr base, int phyaddr,
     sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
     return dev;
 }
+
+#endif
diff --git a/hw/etraxfs_dma.h b/hw/etraxfs_dma.h
index 3fef80fae1..38104a67b5 100644
--- a/hw/etraxfs_dma.h
+++ b/hw/etraxfs_dma.h
@@ -1,3 +1,6 @@
+#ifndef HW_ETRAXFS_DMA_H
+#define HW_ETRAXFS_DMA_H 1
+
 struct dma_context_metadata {
 	/* data descriptor md */
 	uint16_t metadata;
@@ -27,3 +30,5 @@ void etraxfs_dmac_connect_client(void *opaque, int c,
 				 struct etraxfs_dma_client *cl);
 int etraxfs_dmac_input(struct etraxfs_dma_client *client, 
 		       void *buf, int len, int eop);
+
+#endif
diff --git a/hw/flash.h b/hw/flash.h
index d790f3c92d..bda2158c13 100644
--- a/hw/flash.h
+++ b/hw/flash.h
@@ -1,3 +1,6 @@
+#ifndef HW_FLASH_H
+#define HW_FLASH_H 1
+
 /* NOR flash devices */
 
 #include "memory.h"
@@ -57,3 +60,5 @@ typedef struct {
 uint8_t ecc_digest(ECCState *s, uint8_t sample);
 void ecc_reset(ECCState *s);
 extern VMStateDescription vmstate_ecc_state;
+
+#endif
diff --git a/hw/lm32.h b/hw/lm32.h
index 0a676329fd..4194c9a813 100644
--- a/hw/lm32.h
+++ b/hw/lm32.h
@@ -1,3 +1,6 @@
+#ifndef HW_LM32_H
+#define HW_LM32_H 1
+
 
 #include "qemu-common.h"
 
@@ -23,3 +26,5 @@ static inline DeviceState *lm32_juart_init(void)
 
     return dev;
 }
+
+#endif
diff --git a/hw/mac_dbdma.h b/hw/mac_dbdma.h
index bfdb0ddc68..e596837f46 100644
--- a/hw/mac_dbdma.h
+++ b/hw/mac_dbdma.h
@@ -19,6 +19,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef HW_MAC_DBDMA_H
+#define HW_MAC_DBDMA_H 1
 
 #include "memory.h"
 
@@ -42,3 +44,5 @@ void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
                             DBDMA_rw rw, DBDMA_flush flush,
                             void *opaque);
 void* DBDMA_init (MemoryRegion **dbdma_mem);
+
+#endif
diff --git a/hw/msmouse.h b/hw/msmouse.h
index 456cb21424..8cff3a71c3 100644
--- a/hw/msmouse.h
+++ b/hw/msmouse.h
@@ -1,2 +1,7 @@
+#ifndef HW_MSMOUSE_H
+#define HW_MSMOUSE_H 1
+
 /* msmouse.c */
 CharDriverState *qemu_chr_open_msmouse(QemuOpts *opts);
+
+#endif
diff --git a/hw/ne2000.h b/hw/ne2000.h
index 1e7ab073e3..b31ae030f9 100644
--- a/hw/ne2000.h
+++ b/hw/ne2000.h
@@ -1,3 +1,6 @@
+#ifndef HW_NE2000_H
+#define HW_NE2000_H 1
+
 #define NE2000_PMEM_SIZE    (32*1024)
 #define NE2000_PMEM_START   (16*1024)
 #define NE2000_PMEM_END     (NE2000_PMEM_SIZE+NE2000_PMEM_START)
@@ -33,3 +36,5 @@ extern const VMStateDescription vmstate_ne2000;
 void ne2000_reset(NE2000State *s);
 int ne2000_can_receive(NetClientState *nc);
 ssize_t ne2000_receive(NetClientState *nc, const uint8_t *buf, size_t size_);
+
+#endif
diff --git a/hw/pci/pci_ids.h b/hw/pci/pci_ids.h
index 5df7245349..271d935bc7 100644
--- a/hw/pci/pci_ids.h
+++ b/hw/pci/pci_ids.h
@@ -7,6 +7,8 @@
  *
  *      QEMU-specific definitions belong in pci.h
  */
+#ifndef HW_PCI_IDS_H
+#define HW_PCI_IDS_H 1
 
 /* Device classes and subclasses */
 
@@ -145,3 +147,5 @@
 
 #define PCI_VENDOR_ID_NEC                0x1033
 #define PCI_DEVICE_ID_NEC_UPD720200      0x0194
+
+#endif
diff --git a/hw/pcmcia.h b/hw/pcmcia.h
index 50648c973f..aac1d77cc7 100644
--- a/hw/pcmcia.h
+++ b/hw/pcmcia.h
@@ -1,3 +1,6 @@
+#ifndef HW_PCMCIA_H
+#define HW_PCMCIA_H 1
+
 /* PCMCIA/Cardbus */
 
 #include "qemu-common.h"
@@ -49,3 +52,5 @@ struct PCMCIACardState {
 
 /* dscm1xxxx.c */
 PCMCIACardState *dscm1xxxx_init(DriveInfo *bdrv);
+
+#endif
diff --git a/hw/pcnet.h b/hw/pcnet.h
index da8c3bde7b..96643117a0 100644
--- a/hw/pcnet.h
+++ b/hw/pcnet.h
@@ -1,3 +1,6 @@
+#ifndef HW_PCNET_H
+#define HW_PCNET_H 1
+
 #define PCNET_IOPORT_SIZE       0x20
 #define PCNET_PNPMMIO_SIZE      0x20
 
@@ -63,3 +66,5 @@ void pcnet_set_link_status(NetClientState *nc);
 void pcnet_common_cleanup(PCNetState *d);
 int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info);
 extern const VMStateDescription vmstate_pcnet;
+
+#endif
diff --git a/hw/ppc.h b/hw/ppc.h
index 2f3ea277bc..17005c795a 100644
--- a/hw/ppc.h
+++ b/hw/ppc.h
@@ -1,3 +1,6 @@
+#ifndef HW_PPC_H
+#define HW_PPC_H 1
+
 void ppc_set_irq (CPUPPCState *env, int n_IRQ, int level);
 
 /* PowerPC hardware exceptions management helpers */
@@ -90,3 +93,5 @@ enum {
 
 /* ppc_booke.c */
 void ppc_booke_timers_init(CPUPPCState *env, uint32_t freq, uint32_t flags);
+
+#endif
diff --git a/hw/qdev-addr.h b/hw/qdev-addr.h
index ea5ecb4d78..79708e6751 100644
--- a/hw/qdev-addr.h
+++ b/hw/qdev-addr.h
@@ -1,5 +1,10 @@
+#ifndef HW_QDEV_ADDR_H
+#define HW_QDEV_ADDR_H 1
+
 #define DEFINE_PROP_TADDR(_n, _s, _f, _d)                               \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_taddr, hwaddr)
 
 extern PropertyInfo qdev_prop_taddr;
 void qdev_prop_set_taddr(DeviceState *dev, const char *name, hwaddr value);
+
+#endif
diff --git a/hw/qxl.h b/hw/qxl.h
index 8433d1aeea..9130261524 100644
--- a/hw/qxl.h
+++ b/hw/qxl.h
@@ -1,3 +1,6 @@
+#ifndef HW_QXL_H
+#define HW_QXL_H 1
+
 #include "qemu-common.h"
 
 #include "ui/console.h"
@@ -158,3 +161,5 @@ void qxl_render_update(PCIQXLDevice *qxl);
 int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext);
 void qxl_render_update_area_done(PCIQXLDevice *qxl, QXLCookie *cookie);
 void qxl_render_update_area_bh(void *opaque);
+
+#endif
diff --git a/hw/s390-virtio-bus.h b/hw/s390-virtio-bus.h
index a83afe785f..23fedd5be8 100644
--- a/hw/s390-virtio-bus.h
+++ b/hw/s390-virtio-bus.h
@@ -16,6 +16,8 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
+#ifndef HW_S390_VIRTIO_BUS_H
+#define HW_S390_VIRTIO_BUS_H 1
 
 #include "virtio-blk.h"
 #include "virtio-net.h"
@@ -100,3 +102,5 @@ VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
 void s390_virtio_device_sync(VirtIOS390Device *dev);
 void s390_virtio_reset_idx(VirtIOS390Device *dev);
 
+
+#endif
diff --git a/hw/scsi-defs.h b/hw/scsi-defs.h
index d7a401912b..9ab045b613 100644
--- a/hw/scsi-defs.h
+++ b/hw/scsi-defs.h
@@ -19,6 +19,8 @@
  * This header file contains public constants and structures used by
  * the scsi code for linux.
  */
+#ifndef HW_SCSI_DEFS_H
+#define HW_SCSI_DEFS_H 1
 
 /*
  *      SCSI opcodes
@@ -301,3 +303,5 @@
 #define MMC_PROFILE_HDDVD_R_DL          0x0058
 #define MMC_PROFILE_HDDVD_RW_DL         0x005A
 #define MMC_PROFILE_INVALID             0xFFFF
+
+#endif
diff --git a/hw/serial.h b/hw/serial.h
index ed1a5cd43e..2d7d614e09 100644
--- a/hw/serial.h
+++ b/hw/serial.h
@@ -22,6 +22,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef HW_SERIAL_H
+#define HW_SERIAL_H 1
 
 #include "hw.h"
 #include "sysemu.h"
@@ -97,3 +99,5 @@ SerialState *serial_mm_init(MemoryRegion *address_space,
 
 /* serial-isa.c */
 bool serial_isa_init(ISABus *bus, int index, CharDriverState *chr);
+
+#endif
diff --git a/hw/soc_dma.h b/hw/soc_dma.h
index 5948489eae..6ca4166184 100644
--- a/hw/soc_dma.h
+++ b/hw/soc_dma.h
@@ -18,6 +18,10 @@
  * with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef HW_SOC_DMA_H
+#define HW_SOC_DMA_H 1
+
+
 #include "memory.h"
 #include "hw/irq.h"
 
@@ -108,3 +112,5 @@ static inline void soc_dma_port_add_fifo_out(struct soc_dma_s *dma,
 {
     return soc_dma_port_add_fifo(dma, virt_base, fn, opaque, 1);
 }
+
+#endif
diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
index 772870b727..837c63be85 100644
--- a/hw/usb/hcd-ehci.h
+++ b/hw/usb/hcd-ehci.h
@@ -14,6 +14,8 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
+#ifndef HW_USB_EHCI_H
+#define HW_USB_EHCI_H 1
 
 #include "hw/hw.h"
 #include "qemu-timer.h"
@@ -318,3 +320,5 @@ struct EHCIState {
 extern const VMStateDescription vmstate_ehci;
 
 void usb_ehci_initfn(EHCIState *s, DeviceState *dev);
+
+#endif
diff --git a/hw/vga_int.h b/hw/vga_int.h
index bcb738d8c9..ad02404b3c 100644
--- a/hw/vga_int.h
+++ b/hw/vga_int.h
@@ -21,6 +21,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef HW_VGA_INT_H
+#define HW_VGA_INT_H 1
 
 #include <hw/hw.h>
 #include "error.h"
@@ -212,3 +214,5 @@ extern const uint8_t gr_mask[16];
 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
 
 extern const MemoryRegionOps vga_mem_ops;
+
+#endif
diff --git a/hw/xilinx.h b/hw/xilinx.h
index 735f8e257d..a12eccbe3c 100644
--- a/hw/xilinx.h
+++ b/hw/xilinx.h
@@ -1,3 +1,7 @@
+#ifndef HW_XILINX_H
+#define HW_XILINX_H 1
+
+
 #include "stream.h"
 #include "qemu-common.h"
 #include "net/net.h"
@@ -90,3 +94,5 @@ xilinx_axiethernetdma_init(DeviceState *dev, StreamSlave *peer,
     sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);
     sysbus_connect_irq(sysbus_from_qdev(dev), 1, irq2);
 }
+
+#endif
diff --git a/iov.h b/iov.h
index 34c8ec9faa..d06f8b9ce3 100644
--- a/iov.h
+++ b/iov.h
@@ -11,6 +11,9 @@
  * the COPYING file in the top-level directory.
  */
 
+#ifndef IOV_H
+#define IOV_H
+
 #include "qemu-common.h"
 
 /**
@@ -95,3 +98,5 @@ void iov_hexdump(const struct iovec *iov, const unsigned int iov_cnt,
 unsigned iov_copy(struct iovec *dst_iov, unsigned int dst_iov_cnt,
                  const struct iovec *iov, unsigned int iov_cnt,
                  size_t offset, size_t bytes);
+
+#endif
diff --git a/linux-user/cris/syscall.h b/linux-user/cris/syscall.h
index 24f92ba421..50e50b4f3f 100644
--- a/linux-user/cris/syscall.h
+++ b/linux-user/cris/syscall.h
@@ -1,3 +1,6 @@
+#ifndef CRIS_SYSCALL_H
+#define CRIS_SYSCALL_H 1
+
 
 #define UNAME_MACHINE "cris"
 
@@ -34,3 +37,5 @@ struct target_pt_regs {
         unsigned long exs;
         unsigned long eda;
 };
+
+#endif
diff --git a/linux-user/microblaze/syscall.h b/linux-user/microblaze/syscall.h
index db1f98ae69..c3e5c55b3d 100644
--- a/linux-user/microblaze/syscall.h
+++ b/linux-user/microblaze/syscall.h
@@ -1,3 +1,7 @@
+#ifndef MICROBLAZE_SYSCALLS_H
+#define MICROBLAZE_SYSCALLS_H 1
+
+
 #define UNAME_MACHINE "microblaze"
 
 /* We use microblaze_reg_t to keep things similar to the kernel sources.  */
@@ -43,3 +47,5 @@ struct target_pt_regs {
         microblaze_reg_t fsr;
         uint32_t kernel_mode;
 };
+
+#endif
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index a98cbf7b80..d4589e7906 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -4,6 +4,10 @@
    most of them stay the same, so we handle it by putting ifdefs if
    necessary */
 
+#ifndef SYSCALL_DEFS_H
+#define SYSCALL_DEFS_H 1
+
+
 #include "syscall_nr.h"
 
 #define SOCKOP_socket           1
@@ -2425,3 +2429,5 @@ struct target_ucred {
     uint32_t uid;
     uint32_t gid;
 };
+
+#endif
diff --git a/slirp/bootp.h b/slirp/bootp.h
index 30c30ab863..ec3b68704c 100644
--- a/slirp/bootp.h
+++ b/slirp/bootp.h
@@ -1,4 +1,6 @@
 /* bootp/dhcp defines */
+#ifndef SLIRP_BOOTP_H
+#define SLIRP_BOOTP_H 1
 
 #define BOOTP_SERVER	67
 #define BOOTP_CLIENT	68
@@ -120,3 +122,5 @@ typedef struct {
 #define NB_BOOTP_CLIENTS 16
 
 void bootp_input(struct mbuf *m);
+
+#endif
diff --git a/slirp/main.h b/slirp/main.h
index 1f3b84de92..66e4f9252f 100644
--- a/slirp/main.h
+++ b/slirp/main.h
@@ -4,6 +4,8 @@
  * Please read the file COPYRIGHT for the
  * terms and conditions of the copyright.
  */
+#ifndef SLIRP_MAIN_H
+#define SLIRP_MAIN_H 1
 
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
@@ -45,3 +47,5 @@ extern int tcp_keepintvl;
 
 int if_encap(Slirp *slirp, struct mbuf *ifm);
 ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags);
+
+#endif
diff --git a/slirp/tftp.h b/slirp/tftp.h
index 51704e4874..87adeb5333 100644
--- a/slirp/tftp.h
+++ b/slirp/tftp.h
@@ -1,4 +1,6 @@
 /* tftp defines */
+#ifndef SLIRP_TFTP_H
+#define SLIRP_TFTP_H 1
 
 #define TFTP_SESSIONS_MAX 3
 
@@ -43,3 +45,5 @@ struct tftp_session {
 };
 
 void tftp_input(struct mbuf *m);
+
+#endif
diff --git a/softmmu-semi.h b/softmmu-semi.h
index bcb979a5b0..93798b9614 100644
--- a/softmmu-semi.h
+++ b/softmmu-semi.h
@@ -6,6 +6,8 @@
  *
  * This code is licensed under the GPL
  */
+#ifndef SOFTMMU_SEMI_H
+#define SOFTMMU_SEMI_H 1
 
 static inline uint32_t softmmu_tget32(CPUArchState *env, uint32_t addr)
 {
@@ -71,3 +73,5 @@ static void softmmu_unlock_user(CPUArchState *env, void *p, target_ulong addr,
     free(p);
 }
 #define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len)
+
+#endif
diff --git a/target-cris/crisv32-decode.h b/target-cris/crisv32-decode.h
index ed141de0b7..cdba377817 100644
--- a/target-cris/crisv32-decode.h
+++ b/target-cris/crisv32-decode.h
@@ -17,6 +17,8 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
+#ifndef CRISV32_DECODE_H
+#define CRISV32_DECODE_H 1
 
 /* Convenient binary macros.  */
 #define HEX__(n) 0x##n##LU
@@ -126,3 +128,5 @@
 
 #define DEC_FTAG_FIDX_D_M {B8(10101011), B8(11111111)}
 #define DEC_FTAG_FIDX_I_M {B8(11010011), B8(11111111)}
+
+#endif
diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h
index 98fa11b286..7083f3a700 100644
--- a/tcg/arm/tcg-target.h
+++ b/tcg/arm/tcg-target.h
@@ -22,6 +22,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_ARM 
 #define TCG_TARGET_ARM 1
 
 #undef TCG_TARGET_WORDS_BIGENDIAN
@@ -91,3 +92,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
     __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
 #endif
 }
+
+#endif
diff --git a/tcg/hppa/tcg-target.h b/tcg/hppa/tcg-target.h
index f43fb419ae..e2754fe970 100644
--- a/tcg/hppa/tcg-target.h
+++ b/tcg/hppa/tcg-target.h
@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  */
 
+#ifndef TCG_TARGET_HPPA
 #define TCG_TARGET_HPPA 1
 
 #if TCG_TARGET_REG_BITS != 32
@@ -119,3 +120,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
         start += 32;
     }
 }
+
+#endif
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index dbc6756414..5352ac0254 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -21,6 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_I386 
 #define TCG_TARGET_I386 1
 
 //#define TCG_TARGET_WORDS_BIGENDIAN
@@ -135,3 +136,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
                                       tcg_target_ulong stop)
 {
 }
+
+#endif
diff --git a/tcg/ia64/tcg-target.h b/tcg/ia64/tcg-target.h
index 91fe7a3b06..7f3401ecdd 100644
--- a/tcg/ia64/tcg-target.h
+++ b/tcg/ia64/tcg-target.h
@@ -22,6 +22,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_IA64 
 #define TCG_TARGET_IA64 1
 
 /* We only map the first 64 registers */
@@ -158,3 +159,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
     }
     asm volatile (";;sync.i;;srlz.i;;");
 }
+
+#endif
diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h
index 65b5c59e89..78af664cca 100644
--- a/tcg/mips/tcg-target.h
+++ b/tcg/mips/tcg-target.h
@@ -23,6 +23,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_MIPS 
 #define TCG_TARGET_MIPS 1
 
 #ifdef __MIPSEB__
@@ -127,3 +128,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
 {
     cacheflush ((void *)start, stop-start, ICACHE);
 }
+
+#endif
diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h
index ad433ae5bb..ea26769581 100644
--- a/tcg/ppc/tcg-target.h
+++ b/tcg/ppc/tcg-target.h
@@ -21,6 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_PPC 
 #define TCG_TARGET_PPC 1
 
 #define TCG_TARGET_WORDS_BIGENDIAN
@@ -99,3 +100,5 @@ typedef enum {
 #define tcg_qemu_tb_exec(env, tb_ptr) \
     ((long __attribute__ ((longcall)) \
       (*)(void *, void *))code_gen_prologue)(env, tb_ptr)
+
+#endif
diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h
index 97fc5c9885..9b8e9a07b8 100644
--- a/tcg/ppc64/tcg-target.h
+++ b/tcg/ppc64/tcg-target.h
@@ -21,6 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_PPC64 
 #define TCG_TARGET_PPC64 1
 
 #define TCG_TARGET_WORDS_BIGENDIAN
@@ -109,3 +110,5 @@ typedef enum {
 #define TCG_AREG0 TCG_REG_R27
 
 #define TCG_TARGET_EXTEND_ARGS 1
+
+#endif
diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h
index a0181aef74..c87b4138b5 100644
--- a/tcg/s390/tcg-target.h
+++ b/tcg/s390/tcg-target.h
@@ -21,6 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_S390 
 #define TCG_TARGET_S390 1
 
 #define TCG_TARGET_WORDS_BIGENDIAN
@@ -103,3 +104,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
                                       tcg_target_ulong stop)
 {
 }
+
+#endif
diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h
index 0e7d398a41..256f973c6d 100644
--- a/tcg/sparc/tcg-target.h
+++ b/tcg/sparc/tcg-target.h
@@ -21,6 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef TCG_TARGET_SPARC 
 #define TCG_TARGET_SPARC 1
 
 #define TCG_TARGET_WORDS_BIGENDIAN
@@ -138,3 +139,5 @@ static inline void flush_icache_range(tcg_target_ulong start,
     for (; p < stop; p += 8)
         __asm__ __volatile__("flush\t%0" : : "r" (p));
 }
+
+#endif
diff --git a/tests/tcg/cris/crisutils.h b/tests/tcg/cris/crisutils.h
index 29b71cd7b9..3456b9d50d 100644
--- a/tests/tcg/cris/crisutils.h
+++ b/tests/tcg/cris/crisutils.h
@@ -1,3 +1,6 @@
+#ifndef CRISUTILS_H
+#define CRISUTILS_H 1
+
 static char *tst_cc_loc = NULL;
 
 #define cris_tst_cc_init() \
@@ -69,3 +72,5 @@ static inline void cris_tst_cc(const int n, const int z,
 	if (c) cris_tst_cc_c1(); else cris_tst_cc_c0();
 	asm volatile ("" : : "g" (_err));
 }
+
+#endif
diff --git a/ui/curses_keys.h b/ui/curses_keys.h
index c0d5eb452f..18ce6dceee 100644
--- a/ui/curses_keys.h
+++ b/ui/curses_keys.h
@@ -22,6 +22,9 @@
  * THE SOFTWARE.
  */
 
+#ifndef QEMU_CURSES_KEYS_H
+#define QEMU_CURSES_KEYS_H 1
+
 #include <curses.h>
 #include "keymaps.h"
 
@@ -507,3 +510,5 @@ static const name2keysym_t name2keysym[] = {
 
     { NULL, 0 },
 };
+
+#endif
diff --git a/ui/d3des.h b/ui/d3des.h
index 78d546f7d8..70cb6b57ea 100644
--- a/ui/d3des.h
+++ b/ui/d3des.h
@@ -9,6 +9,8 @@
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  */
+#ifndef D3DES_H
+#define D3DES_H 1
 
 /* d3des.h -
  *
@@ -49,3 +51,5 @@ void des(unsigned char *, unsigned char *);
 
 /* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery
  ********************************************************************/
+
+#endif