Go back to dynamic largefile, year2038 tests

Problem reported by Bruno Haible in:
https://lists.gnu.org/r/bug-gnulib/2023-04/msg00134.html
* modules/largefile-tests, modules/year2038-tests (Depends-on):
Remove assert-h.
* tests/test-largefile.c, tests/test-year2038.c:
Test dynamically, not via static_assert.

2 files changed, 22 insertions, 12 deletions

diff --git a/tests/test-largefile.c b/tests/test-largefile.c
index ce5d8a0e2e..eb7861dae3 100644
--- a/tests/test-largefile.c
+++ b/tests/test-largefile.c
@@ -26,17 +26,26 @@
 #include <sys/stat.h>
 #include "intprops.h"
 
-/* Check the range of off_t.
-   With MSVC, this test succeeds only thanks to the 'sys_types' module.  */
-static_assert (TYPE_MAXIMUM (off_t) >> 31 >> 31 != 0);
-
-/* Check the size of the 'struct stat' field 'st_size'.
-   ,With MSVC, this test succeeds only thanks to the 'sys_stat' module.  */
-static struct stat st;
-static_assert (sizeof st.st_size == sizeof (off_t));
+/* Although these tests could be done with static_assert, the test
+   harness prefers dynamic checking.  */
 
 int
 main (void)
 {
-  return 0;
+  int result = 0;
+
+  /* Check the range of off_t.
+     With MSVC, this test succeeds only thanks to the 'sys_types' module.  */
+  if (TYPE_MAXIMUM (off_t) >> 31 >> 31 == 0)
+    result |= 1;
+
+  /* Check the size of the 'struct stat' field 'st_size'.
+     With MSVC, this test succeeds only thanks to the 'sys_stat' module.  */
+  {
+    struct stat st;
+    if (sizeof st.st_size != sizeof (off_t))
+      result |= 2;
+  }
+
+  return result;
 }
diff --git a/tests/test-year2038.c b/tests/test-year2038.c
index 0facf930ed..d1989eb432 100644
--- a/tests/test-year2038.c
+++ b/tests/test-year2038.c
@@ -28,11 +28,12 @@
 #include <sys/types.h>
 #include "intprops.h"
 
-/* Check the range of time_t.  */
-static_assert (TYPE_MAXIMUM (time_t) >> 31 != 0);
+/* Although this test could be done with static_assert, the test
+   harness prefers dynamic checking.  */
 
 int
 main (void)
 {
-  return 0;
+  /* Check the range of time_t.  */
+  return TYPE_MAXIMUM (time_t) >> 31 == 0;
 }