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#!/usr/bin/env python
# encoding: utf-8
# Carlos Rafael Giani, 2007 (dv)
# Thomas Nagy, 2016-2018 (ita)
"""
Try to detect a D compiler from the list of supported compilers::
def options(opt):
opt.load('compiler_d')
def configure(cnf):
cnf.load('compiler_d')
def build(bld):
bld.program(source='main.d', target='app')
Only three D compilers are really present at the moment:
* gdc
* dmd, the ldc compiler having a very similar command-line interface
* ldc2
"""
import re
from waflib import Utils, Logs
d_compiler = {
'default' : ['gdc', 'dmd', 'ldc2']
}
"""
Dict mapping the platform names to lists of names of D compilers to try, in order of preference::
from waflib.Tools.compiler_d import d_compiler
d_compiler['default'] = ['gdc', 'dmd', 'ldc2']
"""
def default_compilers():
build_platform = Utils.unversioned_sys_platform()
possible_compiler_list = d_compiler.get(build_platform, d_compiler['default'])
return ' '.join(possible_compiler_list)
def configure(conf):
"""
Detects a suitable D compiler
:raises: :py:class:`waflib.Errors.ConfigurationError` when no suitable compiler is found
"""
try:
test_for_compiler = conf.options.check_d_compiler or default_compilers()
except AttributeError:
conf.fatal("Add options(opt): opt.load('compiler_d')")
for compiler in re.split('[ ,]+', test_for_compiler):
conf.env.stash()
conf.start_msg('Checking for %r (D compiler)' % compiler)
try:
conf.load(compiler)
except conf.errors.ConfigurationError as e:
conf.env.revert()
conf.end_msg(False)
Logs.debug('compiler_d: %r', e)
else:
if conf.env.D:
conf.end_msg(conf.env.get_flat('D'))
conf.env.COMPILER_D = compiler
conf.env.commit()
break
conf.env.revert()
conf.end_msg(False)
else:
conf.fatal('could not configure a D compiler!')
def options(opt):
"""
This is how to provide compiler preferences on the command-line::
$ waf configure --check-d-compiler=dmd
"""
test_for_compiler = default_compilers()
d_compiler_opts = opt.add_option_group('Configuration options')
d_compiler_opts.add_option('--check-d-compiler', default=None,
help='list of D compilers to try [%s]' % test_for_compiler, dest='check_d_compiler')
for x in test_for_compiler.split():
opt.load('%s' % x)
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