#! /usr/bin/env python
# encoding: utf-8
# harald at klimachs.de

"""
NEC SX Compiler for SX vector systems
"""

import os
import re
from waflib import Utils
from waflib.Tools import ccroot,ar
from waflib.Configure import conf

from waflib.Tools import xlc # method xlc_common_flags
from waflib.Tools.compiler_c import c_compiler
c_compiler['linux'].append('c_nec')

@conf
def find_sxc(conf):
	cc = conf.find_program(['sxcc'], var='CC')
	conf.get_sxc_version(cc)
	conf.env.CC = cc
	conf.env.CC_NAME = 'sxcc'

@conf
def get_sxc_version(conf, fc):
		version_re = re.compile(r"C\+\+/SX\s*Version\s*(?P<major>\d*)\.(?P<minor>\d*)", re.I).search
		cmd = fc + ['-V']
		p = Utils.subprocess.Popen(cmd, stdin=False, stdout=Utils.subprocess.PIPE, stderr=Utils.subprocess.PIPE, env=None)
		out, err = p.communicate()

		if out: match = version_re(out)
		else: match = version_re(err)
		if not match:
				conf.fatal('Could not determine the NEC C compiler version.')
		k = match.groupdict()
		conf.env['C_VERSION'] = (k['major'], k['minor'])

@conf
def sxc_common_flags(conf):
        v=conf.env
        v['CC_SRC_F']=[]
        v['CC_TGT_F']=['-c','-o']
        if not v['LINK_CC']:v['LINK_CC']=v['CC']
        v['CCLNK_SRC_F']=[]
        v['CCLNK_TGT_F']=['-o']
        v['CPPPATH_ST']='-I%s'
        v['DEFINES_ST']='-D%s'
        v['LIB_ST']='-l%s'
        v['LIBPATH_ST']='-L%s'
        v['STLIB_ST']='-l%s'
        v['STLIBPATH_ST']='-L%s'
        v['RPATH_ST']=''
        v['SONAME_ST']=[]
        v['SHLIB_MARKER']=[]
        v['STLIB_MARKER']=[]
        v['LINKFLAGS_cprogram']=['']
        v['cprogram_PATTERN']='%s'
        v['CFLAGS_cshlib']=['-fPIC']
        v['LINKFLAGS_cshlib']=['']
        v['cshlib_PATTERN']='lib%s.so'
        v['LINKFLAGS_cstlib']=[]
        v['cstlib_PATTERN']='lib%s.a'

def configure(conf):
	conf.find_sxc()
	conf.find_program('sxar',VAR='AR')
	conf.sxc_common_flags()
	conf.cc_load_tools()
	conf.cc_add_flags()
	conf.link_add_flags()