09/12/13 13:42:53 .net
R:\>wcl386 foobarfoobarfoobar.cpp
Open Watcom C/C++32 Compile and Link Utility Version 1.8
Portions Copyright (c) 1988-2002 Sybase, Inc. All Rights Reserved.
Source code is available under the Sybase Open Watcom Public License.
See URLﾘﾝｸ(www.openwatcom.org) for details.
Unable to open "foobarfoobarfoobar.cpp"
やはり長いとコンパイルエラーになりますね。