From: Gilles DOT Depeyrot AT wanadoo DOT fr (Gilles Depeyrot) Subject: Re: Compiling Bison-generated parsers with MS VC++? 9 Oct 1998 08:23:19 -0700 Message-ID: <199810082011.WAA08747.cygnus.gnu-win32@wanadoo.fr> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit To: "Christopher David Hundhausen" , Hi Christopher, I use several Bison/Flex parser/lexers in one of my Windows applications. This should be absolutely no trouble since both Bison and Flex generate portable C code. You do have to create an empty unistd.h include file to get things to compile correctly. Le (the) 7/10/98 18:04, Christopher David Hundhausen a écrit (wrote) : >The next step is to get VC++ to compile a bison-generated parser that >makes use of MFC classes. Does anyone have any suggestions on >how to get this to work? At present, my compilation results in >the following error messages: > >/cygnus/b19/share/bison.simple(327) : error C2065: 'yyerror' : undeclared >identifier >/cygnus/b19/share/bison.simple(333) : error C2065: 'alloca' : undeclared >identifier >/cygnus/b19/share/bison.simple(387) : error C2065: 'yylex' : undeclared >identifier SInce VC++ is a C++ compiler, both yyerror and yylex prototypes have to be declared before they are used (at the top of the Bison grammar. I don't recall having a problem with alloca, but I'll try to check that out. >Once I get the parser to compile, what will I need to do to get >everything to link properly with my MFC app? Is there a gnu-win32 >object file that I need to include in the link? Does anyone have any >advice? Since you are compiling with VC++, you don't need any Gnu-Win32 libraries. The VC++ libraries contain all of the C entry points used by Bison and Flex. Cheers, Gilles Gilles Depeyrot - For help on using this list (especially unsubscribing), send a message to "gnu-win32-request AT cygnus DOT com" with one line of text: "help".