Bug#1127741: mrpt FTBFS on big endian

Source: mrpt
Version: 1:2.15.8+ds-1
Severity: serious
Tags: ftbfs
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: s390x

https://buildd.debian.org/status/fetch.php?pkg=mrpt&arch=s390x&ver=1%3A2.15.8%2Bds-1&stamp=1770889409&raw=0

...
22: ./libs/io/src/CFileGZStreams_unittest.cpp:393: Failure
22: Expected equality of these values:
22:   size_hint
22:     Which is: 3892510720
22:   TEST_DATA_LEN % (1ULL << 32)
22:     Which is: 1000
...
98% tests passed, 1 tests failed out of 52

Total Test time (real) =  43.12 sec

The following tests FAILED:
	 22 - test_mrpt_io_run (Failed)
Errors while running CTest
make[1]: *** [Makefile:94: test] Error 8


The test looks wrong:
    // Gzip stores size as last 4 bytes (modulo 2^32)
    EXPECT_EQ(size_hint, TEST_DATA_LEN % (1ULL << 32));


The gzip file format is little endian, s390x is big endian.