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

[Paolo Bonzini]

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?

$ grep LONG +build*/config-host.h
+build-32/config-host.h:#define HOST_LONG_BITS 32
+build-64/config-host.h:#define HOST_LONG_BITS 64

Paolo