Merge branch 'wip/pwithnall/fix-ftruncate64' into 'main'

tests: Fix fileutils build on FreeBSD and macOS

See merge request GNOME/glib!3726

glib/tests/fileutils.c

@@ -1486,8 +1486,11 @@ resize_file (const gchar *filename,
 
 #ifdef G_OS_WIN32
   retval = _chsize_s (fd, size);
-#else
+#elif HAVE_FTRUNCATE64
   retval = ftruncate64 (fd, size);
+#else
+  errno = ENOSYS;
+  retval = -1;
 #endif
   if (retval != 0)
     {

meson.build

@@ -646,6 +646,7 @@ functions = [
   'free_aligned_sized',
   'free_sized',
   'fsync',
+  'ftruncate64',
   'getauxval',
   'getc_unlocked',
   'getfsstat',