[Debian-med-packaging] Bug#1066334: cython/bison issue (Was: acedb: FTBFS: acein.c:2045:15: error: implicit declaration of function ‘add_history’ [-Werror=implicit-function-declaration])

[Jeremy Sowden]

On 2024-04-13, at 09:31:07 +0200, Andreas Tille wrote:
> Control: tags -1 help
> thanks
> 
> Hi,
> 
> while I was able to fix the origininal cause of the failure I'm now blocked by
> some issue that cython seems to miss adding some
>    #include <lex.h>
> but I have no idea how to accomplish this.  The Salsa CI build log[1] says:
> 
> ...
> y.tab.c: In function 'yyparse':
> y.tab.c:1409:16: error: implicit declaration of function 'yylex' [-Werror=implicit-function-declaration]
> y.tab.c:2185:7: error: implicit declaration of function 'yyerror'; did you mean 'YYerror'? [-Werror=implicit-function-declaration]
> In file included from aqlparse.y:335:
> aqlparse.l: In function 'yylex':
> ...
> 
> Any help would be welcome
>     Andreas.

You are missing declarations:

 * `yylex`   - this needs to be added to the yacc source
 * `yyerror` - this is present but hidden by a CPP conditional
 * `yywrap`  - this is not needed (grep for "YY_SKIP_YYWRAP") and can be
               disabled

Patch attached.

You can find more info about all three in the flex and bison manuals.

J.
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