From 828def3b25d838c0d724e7e9e4e51c6c10c8c358 Mon Sep 17 00:00:00 2001
From: mittorn <mittorn@sibmail.com>
Date: Sat, 8 Feb 2020 23:04:26 +0700
Subject: [PATCH] waifulib: owcc tool

---
 scripts/waifulib/owcc.py | 122 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100755 scripts/waifulib/owcc.py

diff --git a/scripts/waifulib/owcc.py b/scripts/waifulib/owcc.py
new file mode 100755
index 00000000..73b5827a
--- /dev/null
+++ b/scripts/waifulib/owcc.py
@@ -0,0 +1,122 @@
+#! /usr/bin/env python
+# encoding: utf-8
+
+"""
+Compiler definition for OpenWatcom's owcc
+"""
+
+from waflib import Errors, Utils
+from waflib.Tools import ccroot, ar
+from waflib.Configure import conf
+
+@conf
+def find_owcc(conf):
+	v = conf.env
+	cc = None
+	if v.CC:
+		cc = v.CC
+	else:
+		cc = conf.find_program('cc', var='CC')
+	if not cc:
+		conf.fatal('owcc was not found')
+
+	try:
+		out = conf.cmd_and_log(cc + ['-v'])
+	except Errors.WafError:
+		conf.fatal('%r -v could not be executed' % cc)
+	if not 'Open Watcom' in out:
+		conf.fatal('failed to detect owcc')
+
+	v.CC = cc
+	v.CC_NAME = 'owcc'
+	v.CXX = v.CC
+	v.CXX_NAME = v.cc_NAME
+	if not v.AR:
+		conf.find_program('wlib', var='AR')
+	conf.add_os_flags('ARFLAGS')
+	if not v.ARFLAGS:
+		v.ARFLAGS = ['-fo']
+
+@conf
+def owcc_common_flags(conf):
+	v = conf.env
+
+	v.CC_SRC_F            = ''
+	v.CXX_SRC_F            = ''
+	v.CC_TGT_F            = ['-c', '-o']
+	v.CXX_TGT_F            = ['-c', '-o']
+	v.CPPPATH_ST          = '-I%s'
+	v.DEFINES_ST          = '-D%s'
+
+	if not v.LINK_CC:
+		v.LINK_CC = v.CC
+	if not v.LINK_CXX:
+		v.LINK_CXX = v.CXX
+
+	v.CCLNK_SRC_F         = ''
+	v.CCLNK_TGT_F         = ['-o']
+	v.CXXLNK_SRC_F         = ''
+	v.CXXLNK_TGT_F         = ['-o']
+
+	v.LIB_ST              = '-l%s' # template for adding libs
+	v.LIBPATH_ST          = '-L%s' # template for adding libpaths
+	v.STLIB_ST            = '-l%s'
+	v.STLIBPATH_ST        = '-L%s'
+
+	v.cprogram_PATTERN    = '%s.exe'
+	v.cxxprogram_PATTERN    = '%s.exe'
+	v.cshlib_PATTERN      = 'lib%s.so'
+	v.cxxshlib_PATTERN      = 'lib%s.so'
+	v.cstlib_PATTERN      = '%s.a'
+	v.cxxstlib_PATTERN      = '%s.a'
+
+def find_target(flags):
+	if '-b' in flags:
+		return flags[flags.index('-b')+1]
+
+@conf
+def owcc_detect_platform(conf):
+	v = conf.env
+	target = find_target(v.LINKFLAGS)
+	if not target:
+		target = find_target(v.CC)
+	if not target:
+		target = find_target(v.CFLAGS)
+	if not target:
+		target = Utils.unversioned_sys_platform()
+	if target in ['dos4g', 'dos4gnz', 'dos32a', 'stub32a', 'stub32ac']:
+		v.DEST_BINFMT = 'le'
+		v.DEST_OS = 'dos'
+	elif target in ['dos32x', 'stub32x', 'stub32xc']:
+		v.DEST_BINFMT = 'lx'
+		v.DEST_OS = 'dos'
+	elif target.startswith('win') or target.startswith('nt'):
+		v.DEST_BINFMT = 'pe'
+		v.DEST_OS = 'win32'
+	elif target == 'qnx386':
+		v.DEST_OS = 'qnx'
+		v.DEST_BINFMT = 'qnx'
+	elif target in ['linux', '386']:
+		v.DEST_OS = 'linux'
+		v.DEST_BINFMT = 'elf'
+	else:
+		v.DEST_OS = target
+		v.DEST_BINFMT = None
+
+	v.DEST_CPU = 'i386'
+
+	for f in v.LINKFLAGS + v.CC + v.CFLAGS:
+		if f.startswith('-march'):
+			v.DEST_CPU=f.split('=')[1]
+			break
+
+
+def configure(conf):
+	conf.find_owcc()
+	conf.owcc_common_flags()
+	conf.cc_load_tools()
+	conf.cc_add_flags()
+	conf.cxx_load_tools()
+	conf.cxx_add_flags()
+	conf.link_add_flags()
+	conf.owcc_detect_platform()