Re: [Qemu-devel] [PATCH 08/39] provide portable sizeof(long) test

[Paolo Bonzini]

On 10/12/2010 04:38 PM, malc wrote:

On Tue, 12 Oct 2010, Paolo Bonzini wrote:

On 10/12/2010 03:47 PM, malc wrote:

   # host long bits test
-hostlongbits="32"
-case "$cpu" in
-  x86_64|alpha|ia64|sparc64|ppc64|s390x)
-    hostlongbits=64
-  ;;
-esac
+cat>   $TMPC<<   EOF
+int sizeof_long_is_8[sizeof(long) == 8 ? 1 : -1];
+EOF
+if compile_object; then
+hostlongbits=64
+else
+hostlongbits=32
+fi

This is wrong.

Care to expand?

Gives wrong results on Win64.

Then it's not HOST_LONG_BITS, it's HOST_POINTER_BITS.

Paolo