updated for version 7.3.755
Problem:    Autoconf doesn't find Python 3 if it's called "python".
Solution:   Search for "python2" and "python3" first, then "python".
diff --git a/src/configure.in b/src/configure.in
index 387d85e..2dae429 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -838,7 +838,7 @@
 AC_MSG_RESULT($enable_pythoninterp)
 if test "$enable_pythoninterp" = "yes" -o "$enable_pythoninterp" = "dynamic"; then
   dnl -- find the python executable
-  AC_PATH_PROG(vi_cv_path_python, python)
+  AC_PATH_PROGS(vi_cv_path_python, python2 python)
   if test "X$vi_cv_path_python" != "X"; then
 
     dnl -- get its version number
@@ -1028,7 +1028,7 @@
 AC_MSG_RESULT($enable_python3interp)
 if test "$enable_python3interp" = "yes" -o "$enable_python3interp" = "dynamic"; then
   dnl -- find the python3 executable
-  AC_PATH_PROG(vi_cv_path_python3, python3)
+  AC_PATH_PROGS(vi_cv_path_python3, python3 python)
   if test "X$vi_cv_path_python3" != "X"; then
 
     dnl -- get its version number