portability patches

index 0acdcac..1474633 100644
@@ -1499,8 +1499,10 @@ int bdrv_change_backing_file(BlockDriverState *bs,
     }
 
     if (ret == 0) {
-        pstrcpy(bs->backing_file, sizeof(bs->backing_file), backing_file ?: "");
-        pstrcpy(bs->backing_format, sizeof(bs->backing_format), backing_fmt ?: "");
+        pstrcpy(bs->backing_file, sizeof(bs->backing_file), backing_file ?
+                backing_file : "");
+        pstrcpy(bs->backing_format, sizeof(bs->backing_format), backing_fmt ?
+                backing_fmt : "");
     }
     return ret;
 }

index 2c1cd0a..be7834c 100644
@@ -1013,8 +1013,10 @@ fail:
 static int qcow2_change_backing_file(BlockDriverState *bs,
     const char *backing_file, const char *backing_fmt)
 {
-    pstrcpy(bs->backing_file, sizeof(bs->backing_file), backing_file ?: "");
-    pstrcpy(bs->backing_format, sizeof(bs->backing_format), backing_fmt ?: "");
+    pstrcpy(bs->backing_file, sizeof(bs->backing_file),
+            backing_file ? backing_file : "");
+    pstrcpy(bs->backing_format, sizeof(bs->backing_format),
+            backing_fmt ? backing_file : "");
 
     return qcow2_update_header(bs);
 }

index bbc1029..ca0bfa8 100644
@@ -158,7 +158,7 @@ void bt_vhci_init(struct HCIInfo *info)
 
     s = g_malloc0(sizeof(struct bt_vhci_s));
     s->fd = fd;
-    s->info = info ?: qemu_next_hci();
+    s->info = info ? info : qemu_next_hci();
     s->info->opaque = s;
     s->info->evt_recv = vhci_out_hci_packet_event;
     s->info->acl_recv = vhci_out_hci_packet_acl;

index a3a7fb4..f436d9e 100644
@@ -956,7 +956,7 @@ static int bt_hci_name_req(struct bt_hci_s *hci, bdaddr_t *bdaddr)
     params.status       = HCI_SUCCESS;
     bacpy(&params.bdaddr, &slave->bd_addr);
     len = snprintf(params.name, sizeof(params.name),
-                    "%s", slave->lmp_name ?: "");
+                   "%s", slave->lmp_name ? slave->lmp_name : "");
     memset(params.name + len, 0, sizeof(params.name) - len);
     bt_hci_event(hci, EVT_REMOTE_NAME_REQ_COMPLETE,
                     &params, EVT_REMOTE_NAME_REQ_COMPLETE_SIZE);

@@ -1500,7 +1500,8 @@ static void bt_submit_hci(struct HCIInfo *info,
 
         hci->lm.inquire = 1;
         hci->lm.periodic = 0;
-        hci->lm.responses_left = PARAM(inquiry, num_rsp) ?: INT_MAX;
+        hci->lm.responses_left = PARAM(inquiry, num_rsp) ?
+            PARAM(inquiry, num_rsp) : INT_MAX;
         hci->lm.responses = 0;
         bt_hci_event_status(hci, HCI_SUCCESS);
         bt_hci_inquiry_start(hci, PARAM(inquiry, length));

index dc99fc2..5e445f5 100644
@@ -113,7 +113,7 @@ void bt_device_done(struct bt_device_s *dev)
         p = &(*p)->next;
     if (*p != dev) {
         fprintf(stderr, "%s: bad bt device \"%s\"\n", __FUNCTION__,
-                        dev->lmp_name ?: "(null)");
+                dev->lmp_name ? dev->lmp_name : "(null)");
         exit(-1);
     }
 

index 13a36ea..5112fc2 100644
@@ -97,7 +97,8 @@ static void verdex_init(ram_addr_t ram_size,
     uint32_t verdex_rom = 0x02000000;
     uint32_t verdex_ram = 0x10000000;
 
-    cpu = pxa270_init(address_space_mem, verdex_ram, cpu_model ?: "pxa270-c0");
+    cpu = pxa270_init(address_space_mem, verdex_ram,
+                      cpu_model ? cpu_model : "pxa270-c0");
 
     dinfo = drive_get(IF_PFLASH, 0, 0);
     if (!dinfo) {

index 4278dd1..9518d0b 100644
@@ -789,7 +789,7 @@ static struct omap_sti_s *omap_sti_init(struct omap_target_agent_s *ta,
     s->irq = irq;
     omap_sti_reset(s);
 
-    s->chr = chr ?: qemu_chr_new("null", "null", NULL);
+    s->chr = chr ? chr : qemu_chr_new("null", "null", NULL);
 
     memory_region_init_io(&s->iomem, &omap_sti_ops, s, "omap.sti",
                           omap_l4_region_size(ta, 0));

@@ -2253,7 +2253,7 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
 
     /* Core */
     s->mpu_model = omap2420;
-    s->cpu = cpu_arm_init(core ?: "arm1136-r2");
+    s->cpu = cpu_arm_init(core ? core : "arm1136-r2");
     if (s->cpu == NULL) {
         fprintf(stderr, "Unable to find CPU definition\n");
         exit(1);

index 8448006..0234664 100644
@@ -1253,8 +1253,8 @@ void omap_clk_init(struct omap_mpu_state_s *mpu)
                     k->sibling = j->child1;
                     j->child1 = k;
                 }
-            j->divisor = j->divisor ?: 1;
-            j->multiplier = j->multiplier ?: 1;
+            j->divisor = j->divisor ? j->divisor : 1;
+            j->multiplier = j->multiplier ? j->multiplier : 1;
             j ++;
         }
     for (j = mpu->clks; count --; j ++) {

index 167d5c4..f84a88c 100644
@@ -64,7 +64,7 @@ struct omap_uart_s *omap_uart_init(target_phys_addr_t base,
     s->irq = irq;
     s->serial = serial_mm_init(get_system_memory(), base, 2, irq,
                                omap_clk_getrate(fclk)/16,
-                               chr ?: qemu_chr_new(label, "null", NULL),
+                               chr ? chr : qemu_chr_new(label, "null", NULL),
                                DEVICE_NATIVE_ENDIAN);
     return s;
 }

@@ -183,6 +183,6 @@ void omap_uart_attach(struct omap_uart_s *s, CharDriverState *chr)
     /* TODO: Should reuse or destroy current s->serial */
     s->serial = serial_mm_init(get_system_memory(), s->base, 2, s->irq,
                                omap_clk_getrate(s->fclk) / 16,
-                               chr ?: qemu_chr_new("null", "null", NULL),
+                               chr ? chr : qemu_chr_new("null", "null", NULL),
                                DEVICE_NATIVE_ENDIAN);
 }

index db6af68..6b933d8 100644
@@ -704,10 +704,11 @@ static void onenand_write(void *opaque, target_phys_addr_t addr,
 
     case 0xf200:	/* Start buffer */
         s->bufaddr = (value >> 8) & 0xf;
-        if (PAGE_SHIFT == 11)
-            s->count = (value & 3) ?: 4;
-        else if (PAGE_SHIFT == 10)
-            s->count = (value & 1) ?: 2;
+        if (PAGE_SHIFT == 11) {
+            s->count = (value & 3) ? (value & 3) : 4;
+        } else if (PAGE_SHIFT == 10) {
+            s->count = (value & 1) ? (value & 1) : 2;
+        }
         break;
 
     case 0xf220:	/* Command */

index b711b6b..f9ea5f5 100644
@@ -53,7 +53,7 @@ static void set_taddr(Object *obj, Visitor *v, void *opaque,
         *ptr = value;
     } else {
         error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, value, (uint64_t) 0,
+                  dev->id ? dev->id : "", name, value, (uint64_t) 0,
                   (uint64_t) ~(target_phys_addr_t)0);
     }
 }

index 7915b45..c7a6b80 100644
@@ -173,7 +173,8 @@ int qdev_device_help(QemuOpts *opts)
                 continue;           /* no way to set it, don't show */
             }
             error_printf("%s.%s=%s\n", driver, prop->name,
-                         prop->info->legacy_name ?: prop->info->name);
+                         prop->info->legacy_name ? prop->info->legacy_name :
+                         prop->info->name);
         }
         klass = object_class_get_parent(klass);
     } while (klass != object_class_by_name(TYPE_DEVICE));

index 0b89462..6566127 100644
@@ -879,14 +879,14 @@ static void set_blocksize(Object *obj, Visitor *v, void *opaque,
     }
     if (value < min || value > max) {
         error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
-                  dev->id?:"", name, (int64_t)value, min, max);
+                  dev->id ? dev->id : "", name, (int64_t)value, min, max);
         return;
     }
 
     /* We rely on power-of-2 blocksizes for bitmasks */
     if ((value & (value - 1)) != 0) {
         error_set(errp, QERR_PROPERTY_VALUE_NOT_POWER_OF_2,
-                  dev->id?:"", name, (int64_t)value);
+                  dev->id ? dev->id : "", name, (int64_t)value);
         return;
     }
 

index af54467..d183f57 100644
@@ -607,7 +607,8 @@ void qdev_property_add_legacy(DeviceState *dev, Property *prop,
 
     name = g_strdup_printf("legacy-%s", prop->name);
     type = g_strdup_printf("legacy<%s>",
-                           prop->info->legacy_name ?: prop->info->name);
+                           prop->info->legacy_name ? prop->info->legacy_name :
+                           prop->info->name);
 
     object_property_add(OBJECT(dev), name, type,
                         prop->info->print ? qdev_get_legacy_property : prop->info->get,

index ae25194..4a51314 100644
@@ -574,7 +574,8 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
 
         case 0x83: /* Device identification page, mandatory */
         {
-            const char *str = s->serial ?: bdrv_get_device_name(s->qdev.conf.bs);
+            const char *str = s->serial ? s->serial :
+                bdrv_get_device_name(s->qdev.conf.bs);
             int max_len = s->serial ? 20 : 255 - 8;
             int id_len = strlen(str);
 

index 3c448a6..c2b8db6 100644
@@ -279,9 +279,12 @@ static inline void tsc210x_out_flush(TSC210xState *s, int len)
 {
     uint8_t *data = s->codec.out.fifo + s->codec.out.start;
     uint8_t *end = data + len;
+    int written;
 
-    while (data < end)
-        data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data);
+    while (data < end) {
+        written = AUD_write(s->dac_voice[0], data, end - data);
+        data +=  written ? written : (end - data);
+    }
 
     s->codec.out.len -= len;
     if (s->codec.out.len)

index 8fd30df..e71c0b9 100644
@@ -285,7 +285,7 @@ static const char *feature_name(int feature)
     if (feature < 0 || feature >= ARRAY_SIZE(name)) {
         return "?";
     }
-    return name[feature] ?: "?";
+    return name[feature] ? name[feature] : "?";
 }
 
 static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,

index 11bcec3..fd9d776 100644
@@ -72,9 +72,12 @@ static inline void wm8750_in_load(WM8750State *s)
 static inline void wm8750_out_flush(WM8750State *s)
 {
     int sent = 0;
-    while (sent < s->idx_out)
-        sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent)
-                ?: s->idx_out;
+    int written;
+
+    while (sent < s->idx_out) {
+        written = AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent);
+        sent += written ? written : s->idx_out;
+    }
     s->idx_out = 0;
 }
 

index e6bb2f2..7976800 100644
@@ -643,9 +643,11 @@ static int blk_init(struct XenDevice *xendev)
     blkdev->file_blk  = BLOCK_SIZE;
     blkdev->file_size = bdrv_getlength(blkdev->bs);
     if (blkdev->file_size < 0) {
+        char *name = bdrv_get_format_name(blkdev->bs);
+
         xen_be_printf(&blkdev->xendev, 1, "bdrv_getlength: %d (%s) | drv %s\n",
                       (int)blkdev->file_size, strerror(-blkdev->file_size),
-                      bdrv_get_format_name(blkdev->bs) ?: "-");
+                       name ? name : "-");
         blkdev->file_size = 0;
     }
 

index ef3f277..aa0c563 100644
@@ -172,10 +172,13 @@ void init_paths(const char *prefix)
 /* Look for path in emulation dir, otherwise return name. */
 const char *path(const char *name)
 {
+    const char *ret;
+
     /* Only do absolute paths: quick and dirty, but should mostly be OK.
        Could do relative by tracking cwd. */
     if (!base || !name || name[0] != '/')
         return name;
 
-    return follow_path(base, name) ?: name;
+    ret = follow_path(base, name);
+    return ret ? ret : name;
 }

index 071b6be..3a8c2f1 100644
@@ -117,7 +117,7 @@ QTestState *qtest_init(const char *extra_args)
                                   "-machine accel=qtest "
                                   "%s", qemu_binary, socket_path,
                                   qmp_socket_path, pid_file,
-                                  extra_args ?: "");
+                                  extra_args ? extra_args : "");
 
         ret = system(command);
         exit(ret);

index 1329c30..6a341fb 100644
@@ -3260,7 +3260,8 @@ int main(int argc, char **argv, char **envp)
     if (!max_cpus)
         max_cpus = smp_cpus;
 
-    machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
+    /* Default to UP */
+    machine->max_cpus = machine->max_cpus ? machine->max_cpus : 1;
     if (smp_cpus > machine->max_cpus) {
         fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
                 "supported by machine `%s' (%d)\n", smp_cpus,  machine->name,

index 1474633..14e91a1 100644
@@ -2832,7 +2832,7 @@ void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event)
         return;
     }
 
-    return drv->bdrv_debug_event(bs, event);
+    drv->bdrv_debug_event(bs, event);
 
 }
 

index acacf1b..f35c4b6 100644
@@ -196,9 +196,9 @@ static inline void dma_memory_unmap(DMAContext *dma,
                                     DMADirection dir, dma_addr_t access_len)
 {
     if (!dma_has_iommu(dma)) {
-        return cpu_physical_memory_unmap(buffer, (target_phys_addr_t)len,
-                                         dir == DMA_DIRECTION_FROM_DEVICE,
-                                         access_len);
+        cpu_physical_memory_unmap(buffer, (target_phys_addr_t)len,
+                                  dir == DMA_DIRECTION_FROM_DEVICE,
+                                  access_len);
     } else {
         iommu_dma_memory_unmap(dma, buffer, len, dir, access_len);
     }

index 2ccba60..cb43ee7 100644
@@ -1000,7 +1000,8 @@ static void l2cap_iframe_in(struct l2cap_chan_s *ch, uint16_t cid,
             /* TODO: Signal an error? */
             return;
         }
-        return l2cap_sframe_in(ch, le16_to_cpup((void *) hdr->data));
+        l2cap_sframe_in(ch, le16_to_cpup((void *) hdr->data));
+        return;
     }
 
     switch (hdr->data[1] >> 6) {	/* SAR */

@@ -1010,7 +1011,8 @@ static void l2cap_iframe_in(struct l2cap_chan_s *ch, uint16_t cid,
         if (len - 4 > ch->mps)
             goto len_error;
 
-        return ch->params.sdu_in(ch->params.opaque, hdr->data + 2, len - 4);
+        ch->params.sdu_in(ch->params.opaque, hdr->data + 2, len - 4);
+        break;
 
     case L2CAP_SAR_START:
         if (ch->len_total || len < 6)

@@ -1033,7 +1035,8 @@ static void l2cap_iframe_in(struct l2cap_chan_s *ch, uint16_t cid,
             goto len_error;
 
         memcpy(ch->sdu + ch->len_cur, hdr->data + 2, len - 4);
-        return ch->params.sdu_in(ch->params.opaque, ch->sdu, ch->len_total);
+        ch->params.sdu_in(ch->params.opaque, ch->sdu, ch->len_total);
+        break;
 
     case L2CAP_SAR_CONT:
         if (!ch->len_total || ch->len_cur + len - 4 >= ch->len_total)

@@ -1136,7 +1139,7 @@ static void l2cap_bframe_submit(struct bt_l2cap_conn_params_s *parms)
 {
     struct l2cap_chan_s *chan = (struct l2cap_chan_s *) parms;
 
-    return l2cap_pdu_submit(chan->l2cap);
+    l2cap_pdu_submit(chan->l2cap);
 }
 
 #if 0

index 6279ae3..0f1f0f4 100644
@@ -1596,10 +1596,17 @@ static void eepro100_write(void *opaque, target_phys_addr_t addr,
     EEPRO100State *s = opaque;
 
     switch (size) {
-    case 1: return eepro100_write1(s, addr, data);
-    case 2: return eepro100_write2(s, addr, data);
-    case 4: return eepro100_write4(s, addr, data);
-    default: abort();
+    case 1:
+        eepro100_write1(s, addr, data);
+        break;
+    case 2:
+        eepro100_write2(s, addr, data);
+        break;
+    case 4:
+        eepro100_write4(s, addr, data);
+        break;
+    default:
+        abort();
     }
 }
 

index bf8ece4..087b4f9 100644
@@ -94,12 +94,12 @@ static void cmd646_data_write(void *opaque, target_phys_addr_t addr,
     CMD646BAR *cmd646bar = opaque;
 
     if (size == 1) {
-        return ide_ioport_write(cmd646bar->bus, addr, data);
+        ide_ioport_write(cmd646bar->bus, addr, data);
     } else if (addr == 0) {
         if (size == 2) {
-            return ide_data_writew(cmd646bar->bus, addr, data);
+            ide_data_writew(cmd646bar->bus, addr, data);
         } else {
-            return ide_data_writel(cmd646bar->bus, addr, data);
+            ide_data_writel(cmd646bar->bus, addr, data);
         }
     }
 }

index f5a74c2..6652761 100644
@@ -73,7 +73,8 @@ static void bmdma_write(void *opaque, target_phys_addr_t addr,
 #endif
     switch(addr & 3) {
     case 0:
-        return bmdma_cmd_writeb(bm, val);
+        bmdma_cmd_writeb(bm, val);
+        break;
     case 2:
         bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
         break;

index eec5136..a17f2e2 100644
@@ -74,7 +74,8 @@ static void bmdma_write(void *opaque, target_phys_addr_t addr,
 #endif
     switch (addr & 3) {
     case 0:
-        return bmdma_cmd_writeb(bm, val);
+        bmdma_cmd_writeb(bm, val);
+        break;
     case 2:
         bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
         break;

index 7b4fe87..0c354e9 100644
@@ -1166,9 +1166,11 @@ static void lan9118_16bit_mode_write(void *opaque, target_phys_addr_t offset,
 {
     switch (size) {
     case 2:
-        return lan9118_writew(opaque, offset, (uint32_t)val);
+        lan9118_writew(opaque, offset, (uint32_t)val);
+        return;
     case 4:
-        return lan9118_writel(opaque, offset, val, size);
+        lan9118_writel(opaque, offset, val, size);
+        return;
     }
 
     hw_error("lan9118_write: Bad size 0x%x\n", size);

index d02e60c..ccf7715 100644
@@ -677,15 +677,15 @@ static void ne2000_write(void *opaque, target_phys_addr_t addr,
     NE2000State *s = opaque;
 
     if (addr < 0x10 && size == 1) {
-        return ne2000_ioport_write(s, addr, data);
+        ne2000_ioport_write(s, addr, data);
     } else if (addr == 0x10) {
         if (size <= 2) {
-            return ne2000_asic_ioport_write(s, addr, data);
+            ne2000_asic_ioport_write(s, addr, data);
         } else {
-            return ne2000_asic_ioport_writel(s, addr, data);
+            ne2000_asic_ioport_writel(s, addr, data);
         }
     } else if (addr == 0x1f && size == 1) {
-        return ne2000_reset_ioport_write(s, addr, data);
+        ne2000_reset_ioport_write(s, addr, data);
     }
 }
 

index 476dc89..f5e4f44 100644
@@ -1150,11 +1150,14 @@ static void vmsvga_io_write(void *opaque, target_phys_addr_t addr,
 
     switch (addr) {
     case SVGA_IO_MUL * SVGA_INDEX_PORT:
-        return vmsvga_index_write(s, addr, data);
+        vmsvga_index_write(s, addr, data);
+        break;
     case SVGA_IO_MUL * SVGA_VALUE_PORT:
-        return vmsvga_value_write(s, addr, data);
+        vmsvga_value_write(s, addr, data);
+        break;
     case SVGA_IO_MUL * SVGA_BIOS_PORT:
-        return vmsvga_bios_write(s, addr, data);
+        vmsvga_bios_write(s, addr, data);
+        break;
     }
 }
 

index 674ba97..c59b188 100644
@@ -47,7 +47,8 @@ static void start_auth_vencrypt_subauth(VncState *vs)
     case VNC_AUTH_VENCRYPT_TLSSASL:
     case VNC_AUTH_VENCRYPT_X509SASL:
       VNC_DEBUG("Start TLS auth SASL\n");
-      return start_auth_sasl(vs);
+      start_auth_sasl(vs);
+      break;
 #endif /* CONFIG_VNC_SASL */
 
     default: /* Should not be possible, but just in case */

index cf1cae2..cfc61a7 100644
@@ -3089,5 +3089,5 @@ void vnc_display_add_client(DisplayState *ds, int csock, int skipauth)
 {
     VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
 
-    return vnc_connect(vs, csock, skipauth);
+    vnc_connect(vs, csock, skipauth);
 }

index cc7f84d..7b33d9e 100644
@@ -526,10 +526,10 @@ static inline int lduw_be_p(const void *ptr)
 {
 #if defined(__i386__)
     int val;
-    asm volatile ("movzwl %1, %0\n"
-                  "xchgb %b0, %h0\n"
-                  : "=q" (val)
-                  : "m" (*(uint16_t *)ptr));
+    __asm__ volatile ("movzwl %1, %0\n"
+                      "xchgb %b0, %h0\n"
+                      : "=q" (val)
+                      : "m" (*(uint16_t *)ptr));
     return val;
 #else
     const uint8_t *b = ptr;

@@ -541,10 +541,10 @@ static inline int ldsw_be_p(const void *ptr)
 {
 #if defined(__i386__)
     int val;
-    asm volatile ("movzwl %1, %0\n"
-                  "xchgb %b0, %h0\n"
-                  : "=q" (val)
-                  : "m" (*(uint16_t *)ptr));
+    __asm__ volatile ("movzwl %1, %0\n"
+                      "xchgb %b0, %h0\n"
+                      : "=q" (val)
+                      : "m" (*(uint16_t *)ptr));
     return (int16_t)val;
 #else
     const uint8_t *b = ptr;

@@ -556,10 +556,10 @@ static inline int ldl_be_p(const void *ptr)
 {
 #if defined(__i386__) || defined(__x86_64__)
     int val;
-    asm volatile ("movl %1, %0\n"
-                  "bswap %0\n"
-                  : "=r" (val)
-                  : "m" (*(uint32_t *)ptr));
+    __asm__ volatile ("movl %1, %0\n"
+                      "bswap %0\n"
+                      : "=r" (val)
+                      : "m" (*(uint32_t *)ptr));
     return val;
 #else
     const uint8_t *b = ptr;

@@ -578,10 +578,10 @@ static inline uint64_t ldq_be_p(const void *ptr)
 static inline void stw_be_p(void *ptr, int v)
 {
 #if defined(__i386__)
-    asm volatile ("xchgb %b0, %h0\n"
-                  "movw %w0, %1\n"
-                  : "=q" (v)
-                  : "m" (*(uint16_t *)ptr), "0" (v));
+    __asm__ volatile ("xchgb %b0, %h0\n"
+                      "movw %w0, %1\n"
+                      : "=q" (v)
+                      : "m" (*(uint16_t *)ptr), "0" (v));
 #else
     uint8_t *d = (uint8_t *) ptr;
     d[0] = v >> 8;

@@ -592,10 +592,10 @@ static inline void stw_be_p(void *ptr, int v)
 static inline void stl_be_p(void *ptr, int v)
 {
 #if defined(__i386__) || defined(__x86_64__)
-    asm volatile ("bswap %0\n"
-                  "movl %0, %1\n"
-                  : "=r" (v)
-                  : "m" (*(uint32_t *)ptr), "0" (v));
+    __asm__ volatile ("bswap %0\n"
+                      "movl %0, %1\n"
+                      : "=r" (v)
+                      : "m" (*(uint32_t *)ptr), "0" (v));
 #else
     uint8_t *d = (uint8_t *) ptr;
     d[0] = v >> 24;

index 2c57f78..a32cbd2 100644
@@ -24,17 +24,17 @@ static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
     start1 = start & ~(dsize - 1);
     stop1 = (stop + dsize - 1) & ~(dsize - 1);
     for (p = start1; p < stop1; p += dsize) {
-        asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
+        __asm__ volatile ("dcbst 0,%0" : : "r"(p) : "memory");
     }
-    asm volatile ("sync" : : : "memory");
+    __asm__ volatile ("sync" : : : "memory");
 
     start &= start & ~(isize - 1);
     stop1 = (stop + isize - 1) & ~(isize - 1);
     for (p = start1; p < stop1; p += isize) {
-        asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
+        __asm__ volatile ("icbi 0,%0" : : "r"(p) : "memory");
     }
-    asm volatile ("sync" : : : "memory");
-    asm volatile ("isync" : : : "memory");
+    __asm__ volatile ("sync" : : : "memory");
+    __asm__ volatile ("isync" : : : "memory");
 }
 
 #else

index 9bda7f7..994d8b9 100644
@@ -224,9 +224,9 @@ static inline void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr)
 static inline void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr)
 {
 #if !QEMU_GNUC_PREREQ(4, 1)
-    register unsigned long _beg __asm ("a1");
-    register unsigned long _end __asm ("a2");
-    register unsigned long _flg __asm ("a3");
+    register unsigned long _beg __asm__ ("a1");
+    register unsigned long _end __asm__ ("a2");
+    register unsigned long _flg __asm__ ("a3");
 #endif
 
     /* we could use a ldr pc, [pc, #-4] kind of branch and avoid the flush */

index 7e11197..989a91a 100644
@@ -2,7 +2,7 @@
 #define __QEMU_BARRIER_H 1
 
 /* Compiler barrier */
-#define barrier()   asm volatile("" ::: "memory")
+#define barrier()   __asm__ volatile("" ::: "memory")
 
 #if defined(__i386__)
 

@@ -22,14 +22,14 @@
 #if defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
 #define smp_mb() __sync_synchronize()
 #else
-#define smp_mb() asm volatile("lock; addl $0,0(%%esp) " ::: "memory")
+#define smp_mb() __asm__ volatile("lock; addl $0,0(%%esp) " ::: "memory")
 #endif
 
 #elif defined(__x86_64__)
 
 #define smp_wmb()   barrier()
 #define smp_rmb()   barrier()
-#define smp_mb() asm volatile("mfence" ::: "memory")
+#define smp_mb() __asm__ volatile("mfence" ::: "memory")
 
 #elif defined(_ARCH_PPC)
 

@@ -38,15 +38,15 @@
  * need to order cacheable and non-cacheable stores with respect to
  * each other
  */
-#define smp_wmb()   asm volatile("eieio" ::: "memory")
+#define smp_wmb()   __asm__ volatile("eieio" ::: "memory")
 
 #if defined(__powerpc64__)
-#define smp_rmb()   asm volatile("lwsync" ::: "memory")
+#define smp_rmb()   __asm__ volatile("lwsync" ::: "memory")
 #else
-#define smp_rmb()   asm volatile("sync" ::: "memory")
+#define smp_rmb()   __asm__ volatile("sync" ::: "memory")
 #endif
 
-#define smp_mb()   asm volatile("sync" ::: "memory")
+#define smp_mb()   __asm__ volatile("sync" ::: "memory")
 
 #else
 

index f8af595..0aca342 100644
@@ -174,7 +174,7 @@ static inline int64_t cpu_get_real_ticks(void)
 static inline int64_t cpu_get_real_ticks(void)
 {
     int64_t val;
-    asm volatile ("rdtsc" : "=A" (val));
+    __asm__ volatile ("rdtsc" : "=A" (val));
     return val;
 }
 

@@ -184,7 +184,7 @@ static inline int64_t cpu_get_real_ticks(void)
 {
     uint32_t low,high;
     int64_t val;
-    asm volatile("rdtsc" : "=a" (low), "=d" (high));
+    __asm__ volatile("rdtsc" : "=a" (low), "=d" (high));
     val = high;
     val <<= 32;
     val |= low;

@@ -196,7 +196,7 @@ static inline int64_t cpu_get_real_ticks(void)
 static inline int64_t cpu_get_real_ticks(void)
 {
     int val;
-    asm volatile ("mfctl %%cr16, %0" : "=r"(val));
+    __asm__ volatile ("mfctl %%cr16, %0" : "=r"(val));
     return val;
 }
 

@@ -205,7 +205,7 @@ static inline int64_t cpu_get_real_ticks(void)
 static inline int64_t cpu_get_real_ticks(void)
 {
     int64_t val;
-    asm volatile ("mov %0 = ar.itc" : "=r"(val) :: "memory");
+    __asm__ volatile ("mov %0 = ar.itc" : "=r"(val) :: "memory");
     return val;
 }
 

@@ -214,7 +214,7 @@ static inline int64_t cpu_get_real_ticks(void)
 static inline int64_t cpu_get_real_ticks(void)
 {
     int64_t val;
-    asm volatile("stck 0(%1)" : "=m" (val) : "a" (&val) : "cc");
+    __asm__ volatile("stck 0(%1)" : "=m" (val) : "a" (&val) : "cc");
     return val;
 }
 

@@ -224,7 +224,7 @@ static inline int64_t cpu_get_real_ticks (void)
 {
 #if defined(_LP64)
     uint64_t        rval;
-    asm volatile("rd %%tick,%0" : "=r"(rval));
+    __asm__ volatile("rd %%tick,%0" : "=r"(rval));
     return rval;
 #else
     union {

@@ -234,8 +234,8 @@ static inline int64_t cpu_get_real_ticks (void)
             uint32_t low;
         }       i32;
     } rval;
-    asm volatile("rd %%tick,%1; srlx %1,32,%0"
-                 : "=r"(rval.i32.high), "=r"(rval.i32.low));
+    __asm__ volatile("rd %%tick,%1; srlx %1,32,%0"
+                     : "=r"(rval.i32.high), "=r"(rval.i32.low));
     return rval.i64;
 #endif
 }

@@ -277,7 +277,7 @@ static inline int64_t cpu_get_real_ticks(void)
     uint64_t cc;
     uint32_t cur, ofs;
 
-    asm volatile("rpcc %0" : "=r"(cc));
+    __asm__ volatile("rpcc %0" : "=r"(cc));
     cur = cc;
     ofs = cc >> 32;
     return cur - ofs;

index 5521709..2d4acaa 100644
@@ -114,20 +114,20 @@ void host_cpuid(uint32_t function, uint32_t count,
     uint32_t vec[4];
 
 #ifdef __x86_64__
-    asm volatile("cpuid"
-                 : "=a"(vec[0]), "=b"(vec[1]),
-                   "=c"(vec[2]), "=d"(vec[3])
-                 : "0"(function), "c"(count) : "cc");
+    __asm__ volatile("cpuid"
+                     : "=a"(vec[0]), "=b"(vec[1]),
+                       "=c"(vec[2]), "=d"(vec[3])
+                     : "0"(function), "c"(count) : "cc");
 #else
-    asm volatile("pusha \n\t"
-                 "cpuid \n\t"
-                 "mov %%eax, 0(%2) \n\t"
-                 "mov %%ebx, 4(%2) \n\t"
-                 "mov %%ecx, 8(%2) \n\t"
-                 "mov %%edx, 12(%2) \n\t"
-                 "popa"
-                 : : "a"(function), "c"(count), "S"(vec)
-                 : "memory", "cc");
+    __asm__ volatile("pusha \n\t"
+                     "cpuid \n\t"
+                     "mov %%eax, 0(%2) \n\t"
+                     "mov %%ebx, 4(%2) \n\t"
+                     "mov %%ecx, 8(%2) \n\t"
+                     "mov %%edx, 12(%2) \n\t"
+                     "popa"
+                     : : "a"(function), "c"(count), "S"(vec)
+                     : "memory", "cc");
 #endif
 
     if (eax)

index 829e180..249a18d 100644
@@ -1105,8 +1105,8 @@ static inline uint32_t mfpvr(void)
 {
     uint32_t pvr;
 
-    asm ("mfpvr %0"
-         : "=r"(pvr));
+    __asm__ ("mfpvr %0"
+             : "=r"(pvr));
     return pvr;
 }
 

index e2f8703..e83cece 100644
@@ -113,7 +113,7 @@ static inline int kvmppc_fixup_cpu(CPUPPCState *env)
 #define kvmppc_eieio() \
     do {                                          \
         if (kvm_enabled()) {                          \
-            asm volatile("eieio" : : : "memory"); \
+            __asm__ volatile("eieio" : : : "memory"); \
         } \
     } while (0)
 #endif

index f90b834..15dd35e 100644
@@ -87,9 +87,9 @@ static inline void flush_icache_range(tcg_target_ulong start,
 #if QEMU_GNUC_PREREQ(4, 1)
     __builtin___clear_cache((char *) start, (char *) stop);
 #else
-    register unsigned long _beg __asm ("a1") = start;
-    register unsigned long _end __asm ("a2") = stop;
-    register unsigned long _flg __asm ("a3") = 0;
-    __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
+    register unsigned long _beg __asm__ ("a1") = start;
+    register unsigned long _end __asm__ ("a2") = stop;
+    register unsigned long _flg __asm__ ("a3") = 0;
+    __asm__ __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
 #endif
 }

index d4bf6fe..402bebf 100644
@@ -113,11 +113,11 @@ static inline void flush_icache_range(tcg_target_ulong start,
 {
     start &= ~31;
     while (start <= stop) {
-        asm volatile ("fdc 0(%0)\n\t"
-                      "sync\n\t"
-                      "fic 0(%%sr4, %0)\n\t"
-                      "sync"
-                      : : "r"(start) : "memory");
+        __asm__ volatile ("fdc 0(%0)\n\t"
+                          "sync\n\t"
+                          "fic 0(%%sr4, %0)\n\t"
+                          "sync"
+                          : : "r"(start) : "memory");
         start += 32;
     }
 }

index 0631b9f..7b642e1 100644
@@ -153,7 +153,7 @@ static inline void flush_icache_range(tcg_target_ulong start,
     stop = (stop + (32UL - 1UL)) & ~(32UL - 1UL);
 
     for (; start < stop; start += 32UL) {
-        asm volatile ("fc.i %0" :: "r" (start));
+        __asm__ volatile ("fc.i %0" :: "r" (start));
     }
-    asm volatile (";;sync.i;;srlz.i;;");
+    __asm__ volatile (";;sync.i;;srlz.i;;");
 }

index 04662c1..ae368df 100644
@@ -2233,8 +2233,8 @@ static void query_facilities(void)
        kernel-only, storing its results at absolute address 200.  */
     /* stfle 0(%r1) */
     r1 = &facilities;
-    asm volatile(".word 0xb2b0,0x1000"
-                 : "=r"(r0) : "0"(0), "r"(r1) : "memory", "cc");
+    __asm__ volatile(".word 0xb2b0,0x1000"
+                     : "=r"(r0) : "0"(0), "r"(r1) : "memory", "cc");
 
     if (got_sigill) {
         /* STORE FACILITY EXTENDED is not available.  Probe for one of each

@@ -2246,7 +2246,7 @@ static void query_facilities(void)
         /* Test for z/Architecture.  Required even in 31-bit mode.  */
         got_sigill = 0;
         /* agr %r0,%r0 */
-        asm volatile(".word 0xb908,0x0000" : "=r"(r0) : : "cc");
+        __asm__ volatile(".word 0xb908,0x0000" : "=r"(r0) : : "cc");
         if (!got_sigill) {
             facilities |= FACILITY_ZARCH_ACTIVE;
         }

@@ -2255,8 +2255,8 @@ static void query_facilities(void)
         got_sigill = 0;
         /* ly %r0,0(%r1) */
         r1 = &facilities;
-        asm volatile(".word 0xe300,0x1000,0x0058"
-                     : "=r"(r0) : "r"(r1) : "cc");
+        __asm__ volatile(".word 0xe300,0x1000,0x0058"
+                         : "=r"(r0) : "r"(r1) : "cc");
         if (!got_sigill) {
             facilities |= FACILITY_LONG_DISP;
         }

@@ -2264,7 +2264,7 @@ static void query_facilities(void)
         /* Test for extended immediates.  */
         got_sigill = 0;
         /* afi %r0,0 */
-        asm volatile(".word 0xc209,0x0000,0x0000" : : : "cc");
+        __asm__ volatile(".word 0xc209,0x0000,0x0000" : : : "cc");
         if (!got_sigill) {
             facilities |= FACILITY_EXT_IMM;
         }

@@ -2272,7 +2272,7 @@ static void query_facilities(void)
         /* Test for general-instructions-extension.  */
         got_sigill = 0;
         /* msfi %r0,1 */
-        asm volatile(".word 0xc201,0x0000,0x0001");
+        __asm__ volatile(".word 0xc201,0x0000,0x0001");
         if (!got_sigill) {
             facilities |= FACILITY_GEN_INST_EXT;
         }

index 8386b70..3dcc4d7 100644
@@ -2294,7 +2294,7 @@ struct jit_descriptor {
 void __jit_debug_register_code(void) __attribute__((noinline));
 void __jit_debug_register_code(void)
 {
-    asm("");
+    __asm__("");
 }
 
 /* Must statically initialize the version, because GDB may check

index f8e4328..d6f4819 100644
@@ -1219,7 +1219,8 @@ int kvm_init(void)
     s->vmfd = -1;
     s->fd = qemu_open("/dev/kvm", O_RDWR);
     if (s->fd == -1) {
-        fprintf(stderr, "Could not access KVM kernel module: %m\n");
+        fprintf(stderr, "Could not access KVM kernel module: %s\n",
+                strerror(errno));
         ret = -errno;
         goto err;
     }

index eb3b6e6..472c55e 100644
@@ -116,7 +116,7 @@ static void sigfd_handler(void *opaque)
         }
 
         if (len != sizeof(info)) {
-            printf("read from sigfd returned %zd: %m\n", len);
+            printf("read from sigfd returned %zd: %s\n", len, strerror(errno));
             return;
         }
 

index 41d581b..94e5b1e 100644
@@ -42,7 +42,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required
 
     TFR(fd = open(PATH_NET_TUN, O_RDWR));
     if (fd < 0) {
-        error_report("could not open %s: %m", PATH_NET_TUN);
+        error_report("could not open %s: %s", PATH_NET_TUN, strerror(errno));
         return -1;
     }
     memset(&ifr, 0, sizeof(ifr));

@@ -74,9 +74,11 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required
     ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
     if (ret != 0) {
         if (ifname[0] != '\0') {
-            error_report("could not configure %s (%s): %m", PATH_NET_TUN, ifr.ifr_name);
+            error_report("could not configure %s (%s): %s", PATH_NET_TUN,
+                         ifr.ifr_name, strerror(errno));
         } else {
-            error_report("could not configure %s: %m", PATH_NET_TUN);
+            error_report("could not configure %s: %s", PATH_NET_TUN,
+                         strerror(errno));
         }
         close(fd);
         return -1;

index 5a0300e..099b5ed 100644
@@ -213,8 +213,7 @@ static void *nbd_client_thread(void *arg)
 
     fd = open(device, O_RDWR);
     if (fd < 0) {
-        /* Linux-only, we can use %m in printf.  */
-        fprintf(stderr, "Failed to open %s: %m", device);
+        fprintf(stderr, "Failed to open %s: %s", device, strerror(errno));
         goto out;
     }
 

index 3ea4af0..1e15a4b 100644
@@ -70,10 +70,12 @@ typedef signed int              int_fast16_t;
 #ifndef always_inline
 #if !((__GNUC__ < 3) || defined(__APPLE__))
 #ifdef __OPTIMIZE__
+#undef inline
 #define inline __attribute__ (( always_inline )) __inline__
 #endif
 #endif
 #else
+#undef inline
 #define inline always_inline
 #endif