GNU bug report logs - #59993
[PATCH 2/2] tests: Fix implicit function declaration errors

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From: Zack Weinberg <zack <at> owlfolio.org>
To: 59993 <at> debbugs.gnu.org
Subject: [bug#59993] [PATCH 2/2] tests: Fix implicit function declaration errors
Date: Mon, 12 Dec 2022 15:18:36 -0500

On 2022-12-12 2:05 AM, Frederic Berat wrote:
> This is related to an effort to prepare Automake for future GCC/Clang
> versions which set c99 as default standard to be used.
> Function should be properly declared prior to use in order to be
> compatible with c99 standard.

OK in principle, but ...

> --- a/t/ax/depcomp.sh
> +++ b/t/ax/depcomp.sh
> @@ -243,6 +243,7 @@ cat > sub/subfoo.h <<'END'
>   #include <stdio.h>
>   extern int subfoo (void);
>   END
> +cp sub/subfoo.h sub/subfoo.save
>   
>   cat > src/baz.c <<'END'
>   #include "baz.h"
> @@ -399,8 +400,7 @@ do_test ()
>         && rewrite "$srcdir"/sub/subfoo.h echo 'choke me' \
>         && not $MAKE \
>         && delete "$srcdir"/sub/subfoo.h \
> -      && edit "$srcdir"/sub/subfoo.c -e 1d \
> -      && edit "$srcdir"/foo.h -e 2d \
> +      && mv  "$srcdir"/sub/subfoo.save "$srcdir"/sub/subfoo.h \
>         && make_ok \
>         || r='not ok'
>       result_ "$r" "$pfx dependency tracking works"

These changes don't seem to have anything to do with the patch as 
described.  They should be submitted separately.

> --- a/t/lex-nodist.sh
> +++ b/t/lex-nodist.sh
> @@ -62,6 +62,8 @@ CLEANFILES = $(nodist_prog_SOURCES)
>   END
>   
>   cat > main.c << 'END'
> +extern int yylex (void);
> +
>   int main ()
>   {
>     return yylex ();

Please change `int main ()` to `int main (void)` as long as you're in here.

> --- a/t/ltconv.sh
> +++ b/t/ltconv.sh
> @@ -91,6 +91,12 @@ echo 'int sub22 () { return 22; }' > sub2/sub22/sub22.c
>   
>   cat >test.c <<'EOF'
>   #include <stdio.h>
> +
> +extern int sub1 (void);
> +extern int sub2 (void);
> +extern int sub21 (void);
> +extern int sub22 (void);
> +
>   int main ()
>   {
>     if (1 != sub1 ())

Same here.

> --- a/t/yacc-basic.sh
> +++ b/t/yacc-basic.sh
> @@ -49,6 +49,7 @@ a : 'a' { exit(0); };
>   END
>   
>   cat > foo.c << 'END'
> +extern int yyparse(void);
>   int main () { yyparse (); return 1; }
>   END

And here.

> --- a/t/yacc-clean.sh
> +++ b/t/yacc-clean.sh
> @@ -74,6 +76,8 @@ END
>   cp sub1/parse.y sub2/parse.y
>   
>   cat > sub1/main.c << 'END'
> +extern int yyparse(void);
> +
>   int main ()
>   {
>     return yyparse ();

And here.

> --- a/t/yacc-nodist.sh
> +++ b/t/yacc-nodist.sh
> @@ -78,6 +78,8 @@ BUILT_SOURCES = parse.h
>   END
>   
>   cat > sub1/main.c << 'END'
> +extern int yyparse(void);
> +
>   int main ()
>   {
>     return yyparse ();

And here as well.

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