build: Fix build on systems where /usr/bin/python isn't python 2.

configure.ac sets up a PYTHON2 variable, which is what we want
AX_PYTHON_MODULE to use (since we only use Python 2 for now).

NOTE: This is a candidate for the 9.0 branch.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31598
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Andreas Boll <andreas.boll.dev@gmail.com>

diff --git a/m4/ax_python_module.m4 b/m4/ax_python_module.m4
index 3afc4042049284d2a7754d79887a52cc89408789..2e6670a0f5092e3117cbe31687aaa7a39103ae9e 100644 (file)
--- a/m4/ax_python_module.m4
+++ b/m4/ax_python_module.m4
@@ -25,13 +25,13 @@
 
 AU_ALIAS([AC_PYTHON_MODULE], [AX_PYTHON_MODULE])
 AC_DEFUN([AX_PYTHON_MODULE],[
-    if test -z $PYTHON;
+    if test -z $PYTHON2;
     then
-        PYTHON="python"
+        PYTHON2="python"
     fi
-    PYTHON_NAME=`basename $PYTHON`
+    PYTHON_NAME=`basename $PYTHON2`
     AC_MSG_CHECKING($PYTHON_NAME module: $1)
-       $PYTHON -c "import $1" 2>/dev/null
+       $PYTHON2 -c "import $1" 2>/dev/null
        if test $? -eq 0;
        then
                AC_MSG_RESULT(yes)