GNU bug report logs - #35406
Build error for emacsclient on FreeBSD

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From: Glenn Morris <rgm <at> gnu.org>
To: 35406 <at> debbugs.gnu.org, Paul Eggert <eggert <at> cs.ucla.edu>
Cc: Josh Howard <jraitch <at> outlook.com>
Subject: bug#35406: Build error for emacsclient on FreeBSD
Date: Wed, 24 Apr 2019 12:10:08 -0400

cc'ing the author of
http://lists.gnu.org/r/emacs-diffs/2019-04/msg00463.html

Josh Howard wrote:

> It appears in a recent commit there was a change to emacsclient.c that breaks its ability to build on FreeBSD by using the euidaccess() function which doesn't exist on the platform.
>
> CCLD     emacsclient
> emacsclient.c:1475:11: warning: implicit declaration of function 'euidaccess' is
>       invalid in C99 [-Wimplicit-function-declaration]
>               && euidaccess (sockdirname, X_OK) == 0)
>                  ^
> 1 warning generated.
> /usr/bin/ld: error: undefined symbol: euidaccess
>>>> referenced by emacsclient.c:1475
>>>>               /tmp/emacsclient-a0b189.o:(set_local_socket)
> cc: error: linker command failed with exit code 1 (use -v to see invocation)
> gmake: *** [Makefile:399: emacsclient] Error 1
>
> I'd propose it be switched to eaccess() which should be a synonym on Linux and makes it a bit more portable.
>
> diff --git a/lib-src/emacsclient.c b/lib-src/emacsclient.c
> index 5871a18ce6..aac1b3c2b4 100644
> --- a/lib-src/emacsclient.c
> +++ b/lib-src/emacsclient.c
> @@ -1472,7 +1472,7 @@ set_local_socket (char const *server_name)
>           int sockdirnamelen = snprintf (sockdirname, sizeof sockdirname,
>                                          "/run/user/%"PRIuMAX, id);
>           if (0 <= sockdirnamelen && sockdirnamelen < sizeof sockdirname
> -             && euidaccess (sockdirname, X_OK) == 0)
> +             && eaccess (sockdirname, X_OK) == 0)
>             message
>               (true,
>                ("%s: Should XDG_RUNTIME_DIR='%s' be in the environment?\n"

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