Re: 2.5.20 biuld fails because of lexer.cc

[Daniel Johnson]

In the file stepmake/stepmake/c-rules.make there is a line that looks
like this:
$(FLEX) -Cfe -p -p -o$@ $<

Change it to this:
$(FLEX) -l -Cfe -p -p -o$@ $<

Then start configure all over again.  (The -l flag puts flex into
lex-compatibility mode.)

--Daniel

Tim Hoffmann wrote:

> Hi,
>
> I just tried to compile lilypond-2.5.20 on a debian testing system,
> but the build fails
> because of lexer.cc. My system has flex 2.5.31-31 (wich is obviously >
> 2.5.4a)
> Here are the messages. Any Ideas?
> (btw. building 2.5.14 worked a couple of weeks ago except for some
> problems in making
> the info nodes...)
>
> best
> Tim
>
> out/lexer.cc: In member function `virtual int Lily_lexer::yylex()':
> out/lexer.cc:3331: error: `yy_current_buffer' undeclared (first use this
>   function)
> out/lexer.cc:3331: error: (Each undeclared identifier is reported only
> once for
>   each function it appears in.)
> lexer.ll:560: warning: unused variable `int cnv'
> /usr/include/c++/3.3/bits/locale_facets.h: At top level:
> out/lexer.cc:3208: warning: `int yy_start_stack_ptr' defined but not used
> out/lexer.cc:3209: warning: `int yy_start_stack_depth' defined but not
> used
> out/lexer.cc:3210: warning: `int*yy_start_stack' defined but not used
> out/lexer.cc:3212: warning: `void yy_push_state(int)' declared
> `static' but
>   never defined
> out/lexer.cc:3215: warning: `void yy_pop_state()' declared `static'
> but never
>   defined
> out/lexer.cc:3218: warning: `int yy_top_state()' declared `static' but
> never
>   defined
> make[1]: *** [out/lexer.o] Error 1
> make[1]: Leaving directory `/usr/local/src/lilypond-2.5.20/lily'
> make: *** [all] Fehler 2
>
>
> here are some lines from the ./config output as well
> [...]
> >checking gcc version... 3.3.4
> [...]
> >checking g++ version... 3.3.4
> [...]
> >checking for flex... flex
> >checking how to run the C++ preprocessor... g++ -E
> >checking FlexLexer.h usability... yes
> >checking FlexLexer.h presence... yes
> >checking for FlexLexer.h... yes
> >checking for yyFlexLexer.yy_current_buffer... no