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dependencies.sh: Check for a host python version >= 2.7

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Older distributions such as CentOS6 come with python2.6, which causes build
failures in packages such as host-libglib2 because they require python2.7 and
above.

host-libglib2 will produce the error message:
/bin/sh: python2.7: command not found

Python2.7 is a hard-coded value in configure.ac. If one changes the value to
just "python," the following stack trace is produced:

Traceback (most recent call last):
  File "./gdbus-2.0/codegen/gdbus-codegen.in", line 55, in <module>
    self.outfile.write(LICENSE_STR.format(config.VERSION))
ValueError    : sys.exit(codegen_main.codegen_main())
zero length field name in format

Instead of supporting an ancient version of Python that had its support ended
in October os 2013, it would be more pragmatic only to support Python2.7 and
above.

Luckily; CentOS6 has the centos-release-scl repository, which allows users to
install python2.7, and Debian 8 comes with Python2.7 already, making this patch
relatively low impact.

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
[Peter: only look at major.minor to handle x.y.z with z < 10]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Adam Duskett 2018-12-16 18:27:33 -05:00 committed by Peter Korsgaard
parent 68c95c6ea5
commit 6809f38351
1 changed files with 8 additions and 0 deletions
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8
support/dependencies/dependencies.sh
View File

@ -181,6 +181,14 @@ if test "${missing_progs}" = "yes" ; then
exit 1
fi
# Check that the python version is at least 2.7
PYTHON_VERSION=$(python -V 2>&1 |awk '{ split($2, v, "."); print v[1] v[2] }')
if [ $PYTHON_VERSION -lt 27 ]; then
echo
echo "You have '$(python -V 2>&1)' installed. Python >= 2.7 is required"
exit 1;
fi
if grep ^BR2_NEEDS_HOST_UTF8_LOCALE=y $BR2_CONFIG > /dev/null; then
if ! which locale > /dev/null ; then
echo