Merge commit '938b1edd10d39cecd06b12013a5713829bcb7720' into upstream-merge

Merge commit '938b1edd10d39cecd06b12013a5713829bcb7720' into upstream-merge

* commit '938b1edd10d39cecd06b12013a5713829bcb7720':
  Only setup TARGET_ARCH when it is different of
  print only once TARGET_ARCH
  Refactor targe_bigendian selection in another list
  Refactor common code using a list
  generate ARCH name instead of coding it
  We can wrap ARCH_CFLAGS/ARCH_LDFLAGS in CFLAGS/LDFLAGS at configure time
  We can wrap OS_CFLAGS/OS_LDFLAGS in CFLAGS/LDFLAGS at configure time
  qemu binary don't exist anymore. I guess not much people is compiling on alpha
  Refactor a single rule to generate all qemu-* executables
  TARGET_ARCH == TARGET_BASE_ARCH in m68k and arm
  BASE_LDFLAGS is not used anywhere else
  configure kqemu in a single place

Conflicts:
	configure
	Makefile.target (new edit)

Signed-off-by: Avi Kivity <avi@redhat.com>