[Qemu-devel] [PATCH v3 07/15] provide portable HOST_LONG_BITS test

[Paolo Bonzini]

Do not hardcode the list of 64-bit CPUs.  Use sizeof(void *) to
compute it.  Renaming it to HOST_LONG_BITS to HOST_POINTER_BITS
is left for later.

Signed-off-by: Paolo Bonzini <address@hidden>
---
 configure |   16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/configure b/configure
index d5ae996..a3ff503 100755
--- a/configure
+++ b/configure
@@ -1084,13 +1084,15 @@ esac
 
 fi
 
-# host long bits test
-hostlongbits="32"
-case "$cpu" in
-  x86_64|alpha|ia64|sparc64|ppc64|s390x)
-    hostlongbits=64
-  ;;
-esac
+# host long bits test, actually a pointer size test
+cat > $TMPC << EOF
+int sizeof_pointer_is_8[sizeof(void *) == 8 ? 1 : -1];
+EOF
+if compile_object; then
+hostlongbits=64
+else
+hostlongbits=32
+fi
 
 
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-- 
1.7.3.2