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configure: Don't write .pyc files by default (python -B) 

When a Python script is run, Python normally writes bytecode into a .pyc file.
QEMU's build process uses several Python scripts which are called from
configure or make.

The generated .pyc files take disk space without being of much use, because
those scripts are short, not time critical and only called a few times.

Python's option -B disables writing of .pyc files. QEMU now uses "python -B"
as default, but it is still possible to choose a different call by passing
--python=PYTHON to configure.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Stefan Weil 2013-08-27 15:12:41 +02:00 committed by Michael Tokarev
parent 5b21a2ae4d
commit 1d984a67a9
1 changed files with 2 additions and 2 deletions
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@ -568,7 +568,7 @@ fi
: ${make=${MAKE-make}} : ${make=${MAKE-make}}
: ${install=${INSTALL-install}} : ${install=${INSTALL-install}}
: ${python=${PYTHON-python}} : ${python=${PYTHON-python -B}}
: ${smbd=${SMBD-/usr/sbin/smbd}} : ${smbd=${SMBD-/usr/sbin/smbd}}
# Default objcc to clang if available, otherwise use CC # Default objcc to clang if available, otherwise use CC
@ -1349,7 +1349,7 @@ fi
# Note that if the Python conditional here evaluates True we will exit # Note that if the Python conditional here evaluates True we will exit
# with status 1 which is a shell 'false' value. # with status 1 which is a shell 'false' value.
if ! "$python" -c 'import sys; sys.exit(sys.version_info < (2,4) or sys.version_info >= (3,))'; then if ! $python -c 'import sys; sys.exit(sys.version_info < (2,4) or sys.version_info >= (3,))'; then
error_exit "Cannot use '$python', Python 2.4 or later is required." \ error_exit "Cannot use '$python', Python 2.4 or later is required." \
"Note that Python 3 or later is not yet supported." \ "Note that Python 3 or later is not yet supported." \
"Use --python=/path/to/python to specify a supported Python." "Use --python=/path/to/python to specify a supported Python."