configure: Use -B switch only for Python versions which support it
Commit 1d984a67a95d88f3e708b077dab8adeb47c38c93 added the -B switch
unconditionally. This breaks Python versions before 2.6 which don't
support that switch.
Now configure adds -B only if it is accepted by the Python interpreter.
This modification introduces a small incompatibility because -B might now
also be added when configure was called with --python=PYTHON_INTERPRETER.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/configure b/configure
index 9addff1..eb2c31d 100755
--- a/configure
+++ b/configure
@@ -579,7 +579,7 @@
: ${make=${MAKE-make}}
: ${install=${INSTALL-install}}
-: ${python=${PYTHON-python -B}}
+: ${python=${PYTHON-python}}
: ${smbd=${SMBD-/usr/sbin/smbd}}
# Default objcc to clang if available, otherwise use CC
@@ -1400,6 +1400,13 @@
"Use --python=/path/to/python to specify a supported Python."
fi
+# The -B switch was added in Python 2.6.
+# If it is supplied, compiled files are not written.
+# Use it for Python versions which support it.
+if $python -B -c 'import sys; sys.exit(0)' 2>/dev/null; then
+ python="$python -B"
+fi
+
if test -z "${target_list+xxx}" ; then
target_list="$default_target_list"
else
