[Qemu-devel] Build always fail on x86_32 host for i386_softmmu target

[Bruce Majia]

Hi,

When I built qemu on my x86_32 host with following configure line:

$ ./configure --prefix=/usr/local/qemus/master \
        --target-list=i386-softmmu
$ make

The build will always fail with message:
----------------------------------------
...
  CC    i386-softmmu/fpu/softfloat-native.o
  /mnt/farm/my_repo/qemu/fpu/softfloat-native.c:130:5: error:
  "HOST_LONG_BITS" is not defined
  make[1]: *** [fpu/softfloat-native.o] Error 1
  make: *** [subdir-i386-softmmu] Error 2
----------------------------------------

Is this a known issue or something wrong with my configure line?

Though I can make it work with a minor nasty patch:
==============
diff --git a/fpu/softfloat-native.c b/fpu/softfloat-native.c
index 049c830..5ba5013 100644
--- a/fpu/softfloat-native.c
+++ b/fpu/softfloat-native.c
@@ -127,6 +127,9 @@ floatx80 int64_to_floatx80( int64_t v STATUS_PARAM)
 #endif
 
 /* XXX: this code implements the x86 behaviour, not the IEEE one.  */
+#ifndef HOST_LONG_BITS
+#define HOST_LONG_BITS 32
+#endif
 #if HOST_LONG_BITS == 32
 static inline int long_to_int32(long a)
 {
==============

I thought it may necessary to ask if something wrong with above hack.
And can we get the problem fixed properly?

Thanks.
-b