lib/malloca.c: error when compiling "groff"

[Bjarni Ingi Gislason]

CC = gcc (Debian 12.2.0-1) 12.2.0

  CC       lib/libgnu_a-malloca.o
../lib/malloca.c:42:16: error: expected declaration specifiers or '...' before 
numeric constant
   42 | static_assert (2 * sa_alignment_max - 1 <= (small_t) -1);
      |                ^
make[1]: *** [Makefile:8629: lib/libgnu_a-malloca.o] Error 1


  Line was recently changed in commit:

28465e160f242e39e6008e6de674e7c2360cf7df
Author: Paul Eggert <eggert@cs.ucla.edu>
Date:   Tue Sep 13 17:29:36 2022 -0500


 /* Type for holding very small pointer differences.  */
 typedef unsigned char small_t;
 /* Verify that it is wide enough.  */
-verify (2 * sa_alignment_max - 1 <= (small_t) -1);
+static_assert (2 * sa_alignment_max - 1 <= (small_t) -1);