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m4: Try to use "python" as Python2 interpreter only as last resort

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This patch tries to find Python 2 as "python2", then "python2.7" and finally
"python".

This is needed since "/usr/bin/python" is used as Python 3 on some Linux
distributions (for example on Arch Linux) and on Fedora 28
"/usr/bin/python" will be deprecated [1]:
    "All scripts shall explicitly use /usr/bin/python2."

[1] https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3

Signed-off-by: Timothy Redaelli <tredaelli@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Timothy Redaelli 2018-03-08 17:15:37 +01:00 committed by Ben Pfaff
parent d1309588dd
commit 2c6761dc0d
1 changed files with 1 additions and 1 deletions
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m4/openvswitch.m4
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@ -356,7 +356,7 @@ AC_DEFUN([OVS_CHECK_PYTHON],
ovs_cv_python=$PYTHON ovs_cv_python=$PYTHON
else else
ovs_cv_python=no ovs_cv_python=no
for binary in python python2.7; do for binary in python2 python2.7 python; do
ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for dir in $PATH; do for dir in $PATH; do
IFS=$ovs_save_IFS IFS=$ovs_save_IFS