posixtm tests: Fix warnings seen on MidnightBSD/x86

[Bruno Haible]

On MidnightBSD 2.0/x86 I see these warnings:

../../gltests/test-random.c:22:18: warning: initialization from incompatible 
pointer type [-Wincompatible-pointer-types]
../../gltests/test-random.c:23:18: warning: initialization from incompatible 
pointer type [-Wincompatible-pointer-types]

This patch should fix them.


2021-02-08  Bruno Haible  <br...@clisp.org>

        posixtm tests: Fix warnings seen on MidnightBSD/x86.
        * tests/test-posixtm.c (main): Convert two 'time_t' values to 'long' for
        printing.

diff --git a/tests/test-posixtm.c b/tests/test-posixtm.c
index ea20564..b07e0c5 100644
--- a/tests/test-posixtm.c
+++ b/tests/test-posixtm.c
@@ -178,7 +178,7 @@ main (void)
       if (t_out != t_exp)
         {
           printf ("%s mismatch (-: actual; +:expected)\n-%12ld\n+%12ld\n",
-                  T[i].in, t_out, t_exp);
+                  T[i].in, (long) t_out, (long) t_exp);
           fail = 1;
         }
     }