Assign the intermediate value to a variable to

prevent compiler optimizations from breaking the test.

SVN-Revision: 3757

diff --git a/libarchive/test/test_read_format_mtree.c b/libarchive/test/test_read_format_mtree.c
index 304bb58760087cb28ae49deae6c6471a9ff08317..ef8782a9e95f2d12fe67f1fc56a5505018678727 100644 (file)
--- a/libarchive/test/test_read_format_mtree.c
+++ b/libarchive/test/test_read_format_mtree.c
@@ -37,7 +37,7 @@ test_read_format_mtree1(void)
        // without relying on overflow.  This assumes that long long
        // is at least 64 bits.
        const static long long max_int64 = ((((long long)1) << 62) - 1) + (((long long)1) << 62);
-       time_t min_time;
+       time_t min_time, t;
 
        extract_reference_file(reffile);
 
@@ -137,7 +137,9 @@ test_read_format_mtree1(void)
        /* Verify min_time is the smallest possible time_t. */
        min_time = archive_entry_mtime(ae);
        assert(min_time <= 0);
-       assert(min_time - 1 > 0);
+       /* Simply asserting min_time - 1 > 0 breaks with some compiler optimizations. */
+       t = min_time - 1;
+       assert(t > 0);
 
        /* toooldfile is 1 sec older, which should overflow and get returned
         * with the same value. */