Build error for "env" when building from git

[Erik Auerswald]

Hi,

I have just tried to build coreutils from a git checkout, but the
build failed for "env":

--------8<--------
src/env.c:284:14: warning: implicit declaration of function 'xpalloc'; 
did you mean 'xcallo'? [-Wimplicit-function-declaration]
   ss->argv = xpalloc (ss->argv, &ss->half_alloc, 1,
              ^~~~~~~
              xcalloc
src/env.c:284:12: warning: assignment makes pointer from integer without 
a cast [-Wint-conversion]
   ss->argv = xpalloc (ss->argv, &ss->half_alloc, 1,
            ^
  CCLD     src/env
src/env.o: In function `splitbuf_grow':
/home/auerswald/work/coreutils-git/src/env.c:284: undefined reference to 
`xpalloc'
collect2: error: ld returned 1 exit status
Makefile:8867: recipe for target 'src/env' failed
make[2]: *** [src/env] Error 1
-------->8--------

I have found "xpalloc" as a static function under the gnulib/ directory:

--------8<--------
$ nl gnulib/lib/dfa.c | grep -B1 'xpalloc (void'
   684  static void *
   685  xpalloc (void *pa, idx_t *nitems, idx_t nitems_incr_min,
-------->8--------

I did not see "xpalloc" on the gnulib module list at
https://www.gnu.org/software/gnulib/MODULES.html .

Could it be that some update of gnulib inside coreutils and perhaps
even gnulib itself (to export the "xpalloc" function) is required?

I assume that "git pull" is sufficient to update a working, i.e.,
bootstrapped, git checkout of coreutils, since neither HACKING nor
README-hacking imply otherwise.  This git checkout did build when
I was working on the "pr" bug #46422.

Best regards,
Erik