Re: FreeBSD: Warnings about c-ctype macros used but marked unused

[Bruno Haible]

Hi Tim,

> Compiling on FreeBSD 12 gives a warning per use of c_ macros, for example
> 
> http_parse.c:187:10: warning: 'c_isblank' was marked unused but was used
> [-Wused-but-marked-unused]
>                 while (c_isblank(*s)) s++;
> 
> 
> This is true also for c_isdigit, c_isspace, etc.

A bit more details, please:
  - Which version of gcc or clang is this?
  - Where does the option -Wused-but-marked-unused come from? Is it part
    of -Wall, or did you or your package add it explicitly?

Bruno