# HG changeset patch
# User Paul Wise <pabs3@bonedaddy.net>
# Date 1576934745 -28800
# Node ID 292ad0f71fd42962134c5cd0f11d2e6331ac5495
# Parent  f03ee7e0ccc3379e3f93018778010ac5733ccec0
Add operator and quotes to the AX_PYTHON_DEVEL parameter
The operator is required and the quotes are needed to protect PYTHON_VERSION.

See-also: https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
Fixes:
checking whether to build the libpst python interface... yes
checking for python build information...
checking for python3.7... python3.7
checking for main in -lpython3.7... no
checking for main in -lpython3.7m... yes
  results of the Python check:
    Binary:      python3.7
    Library:     python3.7m
    Include Dir: /usr/include/python3.7m
checking for python3.7... /usr/bin/python3.7
checking for a version of Python >= '2.1.0'... yes
checking for a version of Python 3.7...   File "<string>", line 1
    import sys; 			ver = sys.version.split ()[0]; 			print (ver 3.7)
                                                                  ^
SyntaxError: invalid syntax
no
configure: error: this package requires Python 3.7.
If you have it installed, but it isn't the default Python
interpreter in your system path, please pass the PYTHON_VERSION
variable to configure. See ``configure --help'' for reference.

diff -r f03ee7e0ccc3 -r 292ad0f71fd4 configure.ac
--- a/configure.ac	Sat Dec 21 21:25:45 2019 +0800
+++ b/configure.ac	Sat Dec 21 21:25:45 2019 +0800
@@ -332,7 +332,7 @@
     PYTHON_VERSION=`echo $ax_python_bin | cut -c7-`
 
     # find the flags for that version
-    AX_PYTHON_DEVEL([$PYTHON_VERSION])
+    AX_PYTHON_DEVEL([>= '$PYTHON_VERSION'])
 
     # do we have boost python?
     AX_BOOST_PYTHON