Method: Preprocessor::Parser#configure

Defined in:
lib/caphir/preprocessor_conf.rb

#configure(options, includes, compiler = nil, version = nil) ⇒ Object 



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# File 'lib/caphir/preprocessor_conf.rb', line 13

def configure(options, includes, compiler=nil, version=nil)

	# __FILE__ and __LINE__ macros are define in preprocessor.y

	# so '##' is used to paste tokens, not '/**/'
	self.define('__STDC__', nil, '1')
	self.define('__STDC_VERSION__', nil, '199901L')
	comp_time = Time.now
	self.define('__DATE__', nil, comp_time.strftime('%m %d %Y'))
	self.define('__TIME__', nil, comp_time.strftime('%H:%M:%S'))

	case RUBY_PLATFORM
		when /i[0-9]86/
			self.define('__i386__', nil, '1')
		when /powerpc/
			self.define('__ppc__', nil, '1')
#			when /ia64/
#				self.define('__ia64__', nil, '1')
		else
			warn "unrecognized platform: #{RUBY_PLATFORM}"
	end
	
	case RUBY_PLATFORM
		#when /darwin/
		#when /netbsd/
		when /mswin32/
			self.define('__WIN32', nil, '1')
		when /cygwin/
			self.define('__WIN32', nil, '1')
			self.define('__CYGWIN__', nil, '1')
		when /mingw/
			self.define('__WIN32', nil, '1')
			self.define('__MINGW32__', nil, '1')
		#when /bccwin/
		#when /os2/
		#when /sparc/
		#when /AIX/
	end

	case compiler # gcc is the default
		when nil, 'gcc'
			
			warn "invalid gcc version (got #{version} expecting major.minor.patch_level)" \
				if version and not version =~ /\A(\d+)\.(\d+)(?:\.(\d+))?\Z/

			# defaults to gcc 3.3.0
			self.define('__GNUC__', nil, $1 || '3')
			self.define('__GNUC_MINOR__', nil, $2 || '3')
			self.define('__GNUC_PATCHLEVEL__', nil, $3 || '0') # default must be '0'

			self.define('__complex__', nil, '_Complex')

			# define all these as blank
			empty_str = ''.freeze
			self.define('__asm__', ['...'], empty_str)
			self.define('__attribute__', ['...'], empty_str)

			# this is now handled by the parser
			#self.define('throw', ['...'], empty_str)

			# note that __cdecl is included here
			[	'__const__', '__extension__', '__inline__',
				'__signed__', '__volatile__', '__cdecl' ].each do |kw|
				self.define(kw, nil, empty_str)
			end

			self.define('__restrict_arr', nil, 'restrict')
			
			# define psuedo-ANSI C keywords.  Note these
			# may be redefined later in the code
			[ '__const', '__inline', '__restrict', '__signed', '__volatile' ].each do |kw|
				self.define(kw, nil, kw[2, kw.length-2])
			end

			# for gcc 3.4+ compatibility
			self.define('__GLIBC_HAVE_LONG_LONG', nil, '1')
			self.define('__builtin_va_list', nil, 'int *')
			self.define('SHLIB_COMPAT', ['...'], '(0)')
			
		when 'vc++'
			# win32 should already be defined

			self.define('__cdecl', nil, ' ')
			# make up a time stamp
			self.define('__TIMESTAMP__', nil, comp_time.strftime('%a %b %d %H:%M:%S %y'))

			# default version is 6.0 => 1200
			version = version ? ((version.to_f + 6) * 100).to_i.to_s : '1200'
			self.define('_MSC_VER', nil, version)

			# Not sure if these should be added
			#if RUBY_PLATFORM =~ /i[0-9]86/
			#	self.define('_M_IX86', nil, '500') # default
			#else
			#	self.define('_M_MPPC', nil, '601') # default
			#	self.define('_M_PPC', nil, '604') # default
			#end
		when 'tinyc'
			# tinyc compilers do not specify version numbers
			self.define('__TINYC__', nil, '1')
		
		when 'turboc'
			warn "ignoring version number, defaulting to 3.0" if version
			self.define('__TURBOC__', nil, '661') # 3.0

		when 'borland'
			version = version ? expand_version('0x', version) : '0x550'
			self.define('__BORLANDC__', nil, version)

		when 'intel'
			version = version ? expand_version(nil, version) : '600'
			self.define('__INTEL_COMPILER', nil, version)
			self.define('__ICC', nil, version)

		when 'mars'
			version = version ? expand_version('0x', version) : '0x800'
			self.define('__DMC__', nil, version)

		when 'watcom'
			version = version ? expand_version(version) << '0' : '1100'
			self.define('__WATCOMC__', nil, version)

		else
			warn "unrecognized compiler: #{compiler}"
			exit(2)
	end # case
	
	# options should be applied after the preprocessor is configured
	options.each do |opt|
		if opt[0] == :DEFINE
			self.define(opt[1], opt[2], opt[3])
		elsif opt[0] == :UNDEF
			self.undef(opt[1])
		else
			raise "impossible"
		end
	end
	includes.each { |f| self.include_arg(f) }
end