1.1 --- a/lplc	Wed Jun 16 00:53:24 2021 +0200
     1.2 +++ b/lplc	Tue Jun 22 22:49:47 2021 +0200
     1.3 @@ -3,7 +3,7 @@
     1.4  """
     1.5  Lichen Python-like compiler tool.
     1.6  
     1.7 -Copyright (C) 2016, 2017, 2018 Paul Boddie <paul@boddie.org.uk>
     1.8 +Copyright (C) 2016-2018, 2021 Paul Boddie <paul@boddie.org.uk>
     1.9  
    1.10  This program is free software; you can redistribute it and/or modify it under
    1.11  the terms of the GNU General Public License as published by the Free Software
    1.12 @@ -151,6 +151,7 @@
    1.13  Some options may be followed by values, either immediately after the option
    1.14  (without any space between) or in the arguments that follow them:
    1.15  
    1.16 +-j          Number of processes to be used when compiling
    1.17  -o          Indicate the output executable name
    1.18  -W          Show warnings on the topics indicated
    1.19  
    1.20 @@ -190,8 +191,7 @@
    1.21      elif "--version" in args or "-V" in args:
    1.22          print >>sys.stderr, """\
    1.23  lplc %s
    1.24 -Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
    1.25 -              2014, 2015, 2016, 2017 Paul Boddie <paul@boddie.org.uk>
    1.26 +Copyright (C) 2006-2018, 2021 Paul Boddie <paul@boddie.org.uk>
    1.27  This program is free software; you may redistribute it under the terms of
    1.28  the GNU General Public License version 3 or (at your option) a later version.
    1.29  This program has absolutely no warranty.
    1.30 @@ -206,6 +206,7 @@
    1.31      gc_sections = False
    1.32      ignore_env = False
    1.33      make = True
    1.34 +    make_processes = []
    1.35      make_verbose = True
    1.36      outputs = []
    1.37      paramnames = []
    1.38 @@ -232,6 +233,7 @@
    1.39          elif arg in ("-E", "--no-env"): ignore_env = True
    1.40          elif arg in ("-g", "--debug"): debug = True
    1.41          elif arg in ("-G", "--gc-sections"): gc_sections = True
    1.42 +        elif arg.startswith("-j"): l, needed = start_arg_list(make_processes, arg, 1)
    1.43          # "P" handled below.
    1.44          elif arg.startswith("--param-codes"): l, needed = start_arg_list(paramnames, arg, 1)
    1.45          elif arg.startswith("--param-locations"): l, needed = start_arg_list(paramlocations, arg, 1)
    1.46 @@ -353,7 +355,8 @@
    1.47          # Compile the program unless otherwise indicated.
    1.48  
    1.49          if make:
    1.50 -            make_clean_cmd = ["make", "-C", generated_dir, "clean"]
    1.51 +            processes = make_processes and ["-j"] + make_processes or []
    1.52 +            make_clean_cmd = ["make", "-C", generated_dir] + processes + ["clean"]
    1.53              make_cmd = make_clean_cmd[:-1]
    1.54  
    1.55              retval = call(make_cmd, make_verbose)