[PATCH v2 2/2] python-pkg: Fix lirc version detection when cross compiling

The setup.py script that run on the host can't use the client library
built for target. So setup.py falls back to a wrong hard-coded VERSION
value.

Instead of importing the target library, use exec() to read
lirc/config.py directly for its VERSION value.

Fixes build failure:

/usr/bin/install -c -m 644 ./python-pkg/dist/lirc-0.10.0.tar.gz '.../output/host/arm-buildroot-linux-musleabihf/sysroot/usr/share/lirc'
/usr/bin/install: cannot stat './python-pkg/dist/lirc-0.10.0.tar.gz': No such file or directory

---
v2: Don't hard-code VERSION, read config.py directly
---
 python-pkg/setup.py | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/python-pkg/setup.py b/python-pkg/setup.py
index e9b33690f828..a2d92e0432aa 100644
--- a/python-pkg/setup.py
+++ b/python-pkg/setup.py
@@ -6,14 +6,11 @@ import subprocess
 import os.path
 import os
 
-try:
-    import lirc.config
-    VERSION = lirc.config.VERSION.replace('-devel','')
-except ImportError:
-    VERSION='0.0.0'
-
 from setuptools import setup, Extension
 
+exec(open("lirc/config.py").read())
+VERSION = VERSION.replace('-devel','')
+
 if 'CFLAGS' in os.environ:
     cflags = os.environ['CFLAGS'].split()
     if 'LDFLAGS' in os.environ:
-- 
2.14.1


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