Merge commit '93db66850d99fd9885edeff6af5679be51e1c610' into upstream-merge

* commit '93db66850d99fd9885edeff6af5679be51e1c610': (81 commits)
  ne2k_isa: use qdev properties for configuration.
  qdev/net: common nic property bits
  qdev: add vlan property
  qdev: add netdev property
  qdev: mac addr property fixups
  net: add macaddr type.
  Send a RARP packet after migration.
  multiboot.S patch for old as(1) (was: Re: [Qemu-devel] Some OpenBSD/amd64 build fixes)
  raw/linux-aio: Also initialize POSIX AIO
  qcow2: Fix grow_refcount_table error handling
  usb-linux: return USB_RET_STALL on -EPIPE
  Makefile: Change make to be quiet again when doing nothing
  eepro100: Restructure code
  target-arm: use native tcg-ops for ror/bic/vorn
  target-arm: fix neon shift helper functions
  target-arm: fix neon vsri, vshl and vsli ops
  target-arm: allow modifying vfp fpexc en bit only
  target-arm: add support for neon vld1.64/vst1.64 instructions
  target-arm: fix neon vshrn/vrshrn ops
  target-arm: fix incorrect temporary variable freeing
  ...

Signed-off-by: Mark McLoughlin <markmc@redhat.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/configure b/configure
index 0b0ffcd49..1c20288d4 100755
--- a/configure
+++ b/configure
@@ -1707,6 +1707,36 @@ if compile_prog "" "" ; then
   eventfd=yes
 fi
 
+# check for fallocate
+fallocate=no
+cat > $TMPC << EOF
+#include <fcntl.h>
+
+int main(void)
+{
+    fallocate(0, 0, 0, 0);
+    return 0;
+}
+EOF
+if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then
+  fallocate=yes
+fi
+
+# check for dup3
+dup3=no
+cat > $TMPC << EOF
+#include <unistd.h>
+
+int main(void)
+{
+    dup3(0, 0, 0);
+    return 0;
+}
+EOF
+if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then
+  dup3=yes
+fi
+
 # Check if tools are available to build documentation.
 if test "$docs" != "no" ; then
   if test -x "`which texi2html 2>/dev/null`" -a \
@@ -1805,6 +1835,23 @@ if compile_prog "" "" ; then
 fi
 
 ##########################################
+# check if the compiler understands attribute warn_unused_result
+#
+# This could be smarter, but gcc -Werror does not error out even when warning
+# about attribute warn_unused_result
+
+gcc_attribute_warn_unused_result=no
+cat > $TMPC << EOF
+#if defined(__GNUC__) && (__GNUC__ < 4) && defined(__GNUC_MINOR__) && (__GNUC__ < 4)
+#error gcc 3.3 or older
+#endif
+int main(void) { return 0;}
+EOF
+if compile_prog "" ""; then
+    gcc_attribute_warn_unused_result=yes
+fi
+
+##########################################
 # check if we have fdatasync
 
 fdatasync=no
@@ -2106,6 +2153,12 @@ fi
 if test "$eventfd" = "yes" ; then
   echo "CONFIG_EVENTFD=y" >> $config_host_mak
 fi
+if test "$fallocate" = "yes" ; then
+  echo "CONFIG_FALLOCATE=y" >> $config_host_mak
+fi
+if test "$dup3" = "yes" ; then
+  echo "CONFIG_DUP3=y" >> $config_host_mak
+fi
 if test "$inotify" = "yes" ; then
   echo "CONFIG_INOTIFY=y" >> $config_host_mak
 fi
@@ -2153,6 +2206,9 @@ fi
 if test "$need_offsetof" = "yes" ; then
   echo "CONFIG_NEED_OFFSETOF=y" >> $config_host_mak
 fi
+if test "$gcc_attribute_warn_unused_result" = "yes" ; then
+  echo "CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT=y" >> $config_host_mak
+fi
 if test "$fdatasync" = "yes" ; then
   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
 fi