[bug-diffutils] bug#72235: bug#72235: build failure on FreeBSD and NetBSD

[Jim Meyering]

On Sun, Jul 21, 2024 at 11:14 AM Bruno Haible <bruno@clisp.org> wrote:
> On FreeBSD 14.0 and NetBSD 10.0, a build fails after sources have been 
> modified:
>
> $ touch src/cmp.c
> $ ./configure
> $ make V=1
> ...
> base=`expr cmp.1 : '\(.*\).1'`                           && test -x 
> ../src/$base                                         && (echo '[NAME]'        
>                                        && sed 's@/\* *@@; s/-/\\-/;s/^GNU //; 
> q' ../src/$base.c)       | PATH="../src:$PATH"                   ./help2man 
> -i - -i ./$base.x            -S 'diffutils 2024-05-21' $base > cmp.1-t && mv 
> cmp.1-t cmp.1
> /bin/sh: ./help2man: not found
> *** Error code 127
>
> Stop.
> make[1]: stopped in /home/bruno/diffutils-2024-07-21/man
> *** Error code 1
>
>
> The reason is that on FreeBSD, perl is at /usr/local/bin/perl, not 
> /usr/bin/perl.
> Likewise, on NetBSD, perl is at /usr/pkg/bin/perl, not /usr/bin/perl.
> And likewise, on Guix, the only binary in /usr/bin is /usr/bin/env.
>
> The attached patch fixes it. "use warnings" instead of option '-w' is
> recommended per https://stackoverflow.com/questions/12554179/ ; it avoids
> the use of /usr/bin/env's option '-S' which is unportable (not specified
> by POSIX).

Thanks. I have pushed that.