build: convert default_qtdir from bytes into string

Python3 is picky about byte vs. str variables. From their docs:

...
communicate() returns a tuple (stdout_data, stderr_data). The data will
be strings if streams were opened in text mode; otherwise, bytes.
...

The value returned by Popen() is 'bytes', it is later used together with 'str'.
Python3 rejects a mixture of 'byte' and 'str'.

Change the value of default_qtdir to type 'str'.

Signed-off-by: Olaf Hering <olaf@aepfle.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/build/mixxx.py b/build/mixxx.py
index 2664f7bb37..b6662896cd 100644
--- a/build/mixxx.py
+++ b/build/mixxx.py
@@ -164,7 +164,7 @@ class MixxxBuild(object):
             if any(os.access(os.path.join(path, 'pkg-config'), os.X_OK) for path in os.environ["PATH"].split(os.pathsep)):
                 import subprocess
                 try:
-                    default_qtdir = subprocess.Popen(["pkg-config", "--variable=includedir", "Qt5Core"], stdout = subprocess.PIPE).communicate()[0].rstrip()
+                    default_qtdir = subprocess.Popen(["pkg-config", "--variable=includedir", "Qt5Core"], stdout = subprocess.PIPE).communicate()[0].rstrip().decode()
                 finally:
                     pass