zos: don't use universal-new-lines mode

PR-URL: #1451
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Refael Ackermann <refack@gmail.com>

gyp/pylib/gyp/input.py

@@ -233,7 +233,12 @@ def LoadOneBuildFile(build_file_path, data, aux_data, includes,
     # Open the build file for read ('r') with universal-newlines mode ('U')
     # to make sure platform specific newlines ('\r\n' or '\r') are converted to '\n'
     # which otherwise will fail eval()
-    build_file_contents = open(build_file_path, 'rU').read()
+    if sys.platform == 'zos':
+      # On z/OS, universal-newlines mode treats the file as an ascii file. But since
+      # node-gyp produces ebcdic files, do not use that mode.
+      build_file_contents = open(build_file_path, 'r').read()
+    else:
+      build_file_contents = open(build_file_path, 'rU').read()
   else:
     raise GypError("%s not found (cwd: %s)" % (build_file_path, os.getcwd()))