third_party/waf/waflib/Tools/gfortran.py

   1 #! /usr/bin/env python
   2 # encoding: utf-8
   3 # WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
   4
   5 #! /usr/bin/env python
   6 # encoding: utf-8
   7 # DC 2008
   8 # Thomas Nagy 2016-2018 (ita)
   9
  10 import re
  11 from waflib import Utils
  12 from waflib.Tools import fc, fc_config, fc_scan, ar
  13 from waflib.Configure import conf
  14
  15 @conf
  16 def find_gfortran(conf):
  17         """Find the gfortran program (will look in the environment variable 'FC')"""
  18         fc = conf.find_program(['gfortran','g77'], var='FC')
  19         # (fallback to g77 for systems, where no gfortran is available)
  20         conf.get_gfortran_version(fc)
  21         conf.env.FC_NAME = 'GFORTRAN'
  22
  23 @conf
  24 def gfortran_flags(conf):
  25         v = conf.env
  26         v.FCFLAGS_fcshlib = ['-fPIC']
  27         v.FORTRANMODFLAG = ['-J', ''] # template for module path
  28         v.FCFLAGS_DEBUG = ['-Werror'] # why not
  29
  30 @conf
  31 def gfortran_modifier_win32(conf):
  32         fc_config.fortran_modifier_win32(conf)
  33
  34 @conf
  35 def gfortran_modifier_cygwin(conf):
  36         fc_config.fortran_modifier_cygwin(conf)
  37
  38 @conf
  39 def gfortran_modifier_darwin(conf):
  40         fc_config.fortran_modifier_darwin(conf)
  41
  42 @conf
  43 def gfortran_modifier_platform(conf):
  44         dest_os = conf.env.DEST_OS or Utils.unversioned_sys_platform()
  45         gfortran_modifier_func = getattr(conf, 'gfortran_modifier_' + dest_os, None)
  46         if gfortran_modifier_func:
  47                 gfortran_modifier_func()
  48
  49 @conf
  50 def get_gfortran_version(conf, fc):
  51         """Get the compiler version"""
  52
  53         # ensure this is actually gfortran, not an imposter.
  54         version_re = re.compile(r"GNU\s*Fortran", re.I).search
  55         cmd = fc + ['--version']
  56         out, err = fc_config.getoutput(conf, cmd, stdin=False)
  57         if out:
  58                 match = version_re(out)
  59         else:
  60                 match = version_re(err)
  61         if not match:
  62                 conf.fatal('Could not determine the compiler type')
  63
  64         # --- now get more detailed info -- see c_config.get_cc_version
  65         cmd = fc + ['-dM', '-E', '-']
  66         out, err = fc_config.getoutput(conf, cmd, stdin=True)
  67
  68         if out.find('__GNUC__') < 0:
  69                 conf.fatal('Could not determine the compiler type')
  70
  71         k = {}
  72         out = out.splitlines()
  73         import shlex
  74
  75         for line in out:
  76                 lst = shlex.split(line)
  77                 if len(lst)>2:
  78                         key = lst[1]
  79                         val = lst[2]
  80                         k[key] = val
  81
  82         def isD(var):
  83                 return var in k
  84
  85         def isT(var):
  86                 return var in k and k[var] != '0'
  87
  88         conf.env.FC_VERSION = (k['__GNUC__'], k['__GNUC_MINOR__'], k['__GNUC_PATCHLEVEL__'])
  89
  90 def configure(conf):
  91         conf.find_gfortran()
  92         conf.find_ar()
  93         conf.fc_flags()
  94         conf.fc_add_flags()
  95         conf.gfortran_flags()
  96         conf.gfortran_modifier_platform()
  97         conf.check_gfortran_o_space()