configure.py: add quotes around path to python

fixes bug #11053

lib/configure.py

@@ -1530,7 +1530,8 @@ def rescanTeXFiles():
     interpreter = sys.executable
     if interpreter == '':
         interpreter = "python"
-    tfp = cmdOutput(interpreter + " -tt " + '"' + os.path.join(srcdir, 'scripts', 'TeXFiles.py') + '"')
+    tfp = cmdOutput('"%s" -tt "%s"' % (interpreter,\
+                    os.path.join(srcdir, 'scripts', 'TeXFiles.py')))
     logger.info(tfp)
     logger.info("\tdone")
 

status.22x

@@ -75,6 +75,8 @@ What's new
 
 - Fix issue with language nesting when using Asian languages (bug 10778).
 
+- Fix bug that TeX files were not detected when reconfigurng LyX (bug 11053).
+
 
 * LYX2LYX