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[Qemu-devel] [PULL 3/9] configure: keep track of Python version

From: Eduardo Habkost
Subject: [Qemu-devel] [PULL 3/9] configure: keep track of Python version
Date: Thu, 17 Jan 2019 18:17:37 -0200

From: Cleber Rosa <address@hidden>

Some functionality is dependent on the Python version
detected/configured on configure.  While it's possible to run the
Python version later and check for the version, doing it once is
preferable.  Also, it's a relevant information to keep in build logs,
as the overall behavior of the build can be affected by it.

Signed-off-by: Cleber Rosa <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Eduardo Habkost <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
 configure | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 3eee3fcf70..ca3d407d75 100755
--- a/configure
+++ b/configure
@@ -1797,6 +1797,9 @@ if ! $python -c 'import sys; sys.exit(sys.version_info < 
(2,7))'; then
       "Use --python=/path/to/python to specify a supported Python."
+# Preserve python version since some functionality is dependent on it
+python_version=$($python -V 2>&1 | sed -e 's/Python\ //')
 # Suppress writing compiled files
 python="$python -B"
@@ -6010,7 +6013,7 @@ echo "LDFLAGS           $LDFLAGS"
 echo "make              $make"
 echo "install           $install"
-echo "python            $python"
+echo "python            $python ($python_version)"
 if test "$slirp" = "yes" ; then
     echo "smbd              $smbd"
@@ -6959,6 +6962,7 @@ echo "INSTALL_DATA=$install -c -m 0644" >> 
 echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
 echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
 echo "PYTHON=$python" >> $config_host_mak
+echo "PYTHON_VERSION=$python_version" >> $config_host_mak
 echo "CC=$cc" >> $config_host_mak
 if $iasl -h > /dev/null 2>&1; then
   echo "IASL=$iasl" >> $config_host_mak

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