Windows fixes

compiler/main.v

@@ -486,12 +486,15 @@ mut args := ''
 	// Find clang executable
 	fast_clang := '/usr/local/Cellar/llvm/8.0.0/bin/clang'
 	args := a.join(' ')
-	cmd := if os.file_exists(fast_clang) {
+	mut cmd := if os.file_exists(fast_clang) {
-		'$fast_clang -I. $args'
+		'$fast_clang $args'
 	}
 	else {
-		'cc -I. $args'
+		'cc $args'
 	}
+	$if windows {
+		cmd = 'gcc $args' 
+	} 
 	// Print the C command
 	if c.show_c_cmd || c.is_verbose {
 		println('\n==========\n$cmd\n=========\n')

compiler/scanner.v

@@ -179,13 +179,11 @@ fn (s mut Scanner) scan() ScanRes {
 		return scan_res(STRING, s.ident_string())
 	}
 	s.skip_whitespace()
-	// println('ws skipped')
 	// end of file
 	if s.pos >= s.text.len {
 		// println('scan(): returning EOF (pos >= len)')
 		return scan_res(EOF, '')
 	}
-	// println('!!!!! HANDLE CHAR pos=$s.pos')
 	// handle each char
 	c := s.text[s.pos]
 	mut nextc := `\0`
@@ -481,6 +479,11 @@ fn (s mut Scanner) scan() ScanRes {
 		}
 		return scan_res(DIV, '')
 	}
+	$if windows {
+		if c == `\0` {
+			return scan_res(EOF, '')
+		} 
+	} 
 	println('(char code=$c) pos=$s.pos len=$s.text.len')
 	s.error('invalid character `${c.str()}`')
 	return scan_res(EOF, '')

vlib/os/os.v

@@ -77,8 +77,14 @@ fn parse_windows_cmd_line(cmd byteptr) []string {
 // read_file reads the file in `path` and returns the contents.
 pub fn read_file(path string) ?string {
 	mut res := ''
+	mut mode := 'r' 
+	777  // TODO 
+	// Need 'rb' on windows to avoid the \r\n mess. 
+	$if windows {
+		mode = 'rb' 
+	} 
 	cpath := path.cstr()
-	fp := C.fopen(cpath, 'r')
+	fp := C.fopen(cpath, mode.cstr()) 
 	if isnil(fp) {
 		return error('failed to open file "$path"')
 	}