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From:	"Allan" <mu8ja0i AT earthlink DOT net>
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References:	<201012201923 DOT 11290 DOT juan DOT guerrero AT gmx DOT de>
Subject:	Re: error compiling bc 1.06 with readline 6.1 and flex 2.54
Date:	Tue, 21 Dec 2010 23:04:18 -0600
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To:	djgpp AT delorie DOT com
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"Juan Manuel Guerrero" <juan DOT guerrero AT gmx DOT de> wrote in message 
news:201012201923 DOT 11290 DOT juan DOT guerrero AT gmx DOT de...
> On Sat, 18 Dec 2010 13:17:51 -0600, Allan wrote:
>
> [snip]
>> I got it to build by manually editing bc\scan.l; just comment out the
>> (re)definition of the string pointer `readline'.
> [snip]
>
> That is wrong.  The bc-1.06 port ist 10 years old so that certain readline
> declarations do no longer match the declarations used in the bc headers.
> The readline function declaration in readline header is an external 
> declaration
> and you should make match the readline declaration in the .l file with the 
> one
> in the readline header .  Below a small patch that will make compile the
> bc port with djdev204 and rdln61.
>
> Regards,
> Juan M. Guerrero
>
>
> diff -aprNU5 bc-1.06.orig/bc/scan.l bc-1.06/bc/scan.l
> --- bc-1.06.orig/bc/scan.l 2000-09-13 18:25:46 +0000
> +++ bc-1.06/bc/scan.l 2010-12-20 18:47:54 +0000
> @@ -141,11 +141,11 @@ static char *rl_line = (char *)NULL;
> static char *rl_start = (char *)NULL;
> static int   rl_len = 0;
>
> /* Definitions for readline access. */
> extern FILE *rl_instream;
> -_PROTOTYPE(char *readline, (char *));
> +_PROTOTYPE(char *readline, (const char *));
>
> /* rl_input puts upto MAX characters into BUF with the number put in
>    BUF placed in *RESULT.  If the yy input file is the same as
>    rl_instream (stdin), use readline.  Otherwise, just read it.
> */
> @@ -311,11 +311,11 @@ limits return(Limits);
>        }
>    }
>       }
> [a-z][a-z0-9_]* { yylval.s_value = strcopyof(yytext); return(NAME); }
> \"[^\"]*\"  {
> -       unsigned char *look;
> +       char *look;
>        int count = 0;
>        yylval.s_value = strcopyof(yytext);
>        for (look = yytext; *look != 0; look++)
>  {
>    if (*look == '\n') line_no++;
> @@ -323,11 +323,11 @@ limits return(Limits);
>  }
>        if (count != 2) yyerror ("NUL character in string.");
>        return(STRING);
>      }
> {DIGIT}({DIGIT}|\\\n)*("."({DIGIT}|\\\n)*)?|"."(\\\n)*{DIGIT}({DIGIT}|\\\n)* 
> {
> -       unsigned char *src, *dst;
> +       char *src, *dst;
>        int len;
>        /* remove a trailing decimal point. */
>        len = strlen(yytext);
>        if (yytext[len-1] == '.')
>          yytext[len-1] = 0;
> diff -aprNU5 bc-1.06.orig/djgpp/config.bat bc-1.06/djgpp/config.bat
> --- bc-1.06.orig/djgpp/config.bat 2000-12-23 01:40:26 +0000
> +++ bc-1.06/djgpp/config.bat 2010-12-20 18:20:30 +0000
> @@ -145,18 +145,18 @@ if errorlevel 1 goto WithoutNLS
>
> :WithNLS
> Rem We prefer without-included-gettext because libintl.a from gettext 
> package
> Rem is the only one that is garanteed to have been ported to DJGPP.
> echo Running the ./configure script...
> -sh ./configure --src=%XSRC% --enable-nls --without-included-gettext
> +sh 
> /configure --src=%XSRC% --enable-nls --without-included-gettext  --with-readline
> if errorlevel 1 goto CfgError
> echo Done.
> goto End
>
> :WithoutNLS
> echo Running the ./configure script...
> -sh ./configure --src=%XSRC% --disable-nls
> +sh ./configure --src=%XSRC% --disable-nls  --with-readline
> if errorlevel 1 goto CfgError
> echo Done.
> goto End
>
> :SedError
> diff -aprNU5 bc-1.06.orig/lib/number.c bc-1.06/lib/number.c
> --- bc-1.06.orig/lib/number.c 2000-10-03 18:34:24 +0000
> +++ bc-1.06/lib/number.c 2010-12-20 18:36:42 +0000
> @@ -33,10 +33,13 @@
> #include <config.h>
> #include <number.h>
> #include <assert.h>
> #include <stdlib.h>
> #include <ctype.h>/* Prototypes needed for external utility routines. */
> +#if defined (HAVE_STRING_H)
> +# include <string.h>
> +#endif
>
> #define bc_rt_warn rt_warn
> #define bc_rt_error rt_error
> #define bc_out_of_memory out_of_memory
>
Thanks for the correct code changes for the `.l' file and the `.c' source 
file. I was afraid that my "fix" did not work but there is no test suite for 
bc 1.06 . I will apply the patch and post back. 

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