Re: warnings from gzip and diffutils

[Bruno Haible]

Simon Josefsson wrote:
> As far as I can tell, all of those lines could all be replaced into
> something like this:
> 
> gl_MEGAWARNINGS([-fanalyzer -Wbad-function-cast ... # unwantedflags],
>                 [-Wno-error=analyzer-use-of-uninitialized-value ... # error 
> flags])

Unfortunately, this declarative way of writing things breaks down
when a warning option should only be used/avoided depending on the
compiler version or on some platforms. Some packages need this ability
[1][2].

> There is a lot of cut'n'paste
> logical code now that is duplicated.

In this case, I prefer copy&paste of some commented code, that I can
adapt to my package's needs (e.g. specific options for "imported" code),
than some magic in a black box.

Bruno

[1] 
https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=blob;f=m4/more-warnings.m4;h=1a8afd9fe1a43f4e93e688690f43f6475a706cf1;hb=HEAD#l143
[2] 
https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=blob;f=m4/more-warnings.m4;h=1a8afd9fe1a43f4e93e688690f43f6475a706cf1;hb=HEAD#l183