The tracetool code requires Python 2.4, which was released in 2004.
Check for a supported Python version so we can give a clear error
message.

Signed-off-by: Stefan Hajnoczi <stefa...@linux.vnet.ibm.com>
Reviewed-by: LluĂ­s Vilanova <vilan...@ac.upc.edu>
---
 configure |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 3c72fa0..b4f1379 100755
--- a/configure
+++ b/configure
@@ -1239,9 +1239,10 @@ fi
 
 # Note that if the Python conditional here evaluates True we will exit
 # with status 1 which is a shell 'false' value.
-if ! "$python" -c 'import sys; sys.exit(sys.version_info[0] >= 3)'; then
-  echo "Python 2 required but '$python' is version 3 or better."
-  echo "Use --python=/path/to/python to specify a Python 2."
+if ! "$python" -c 'import sys; sys.exit(sys.version_info < (2,4) or 
sys.version_info >= (3,))'; then
+  echo "Cannot use '$python', Python 2.4 or later is required."
+  echo "Note that Python 3 or later is not yet supported."
+  echo "Use --python=/path/to/python to specify a supported Python."
   exit 1
 fi
 
-- 
1.7.10


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