Tests fail on openSUSE Tumbleweed

[ggardet]

7 tests fail on openSUSE Tumbleweed:

[ 1121s] [==========] 1472 tests from 201 test suites ran. (304421 ms total)
[ 1121s] [  PASSED  ] 1465 tests.
[ 1121s] [  FAILED  ] 7 tests, listed below:
[ 1121s] [  FAILED  ] SortTest.testEmptyFieldSort
[ 1121s] [  FAILED  ] SortTest.testParallelMultiSort
[ 1121s] [  FAILED  ] ParallelMultiSearcherTest.testEmptyIndex
[ 1121s] [  FAILED  ] ParallelMultiSearcherTest.testFieldSelector
[ 1121s] [  FAILED  ] ParallelMultiSearcherTest.testNormalization
[ 1121s] [  FAILED  ] ParallelMultiSearcherTest.testCustomSimilarity
[ 1121s] [  FAILED  ] ParallelMultiSearcherTest.testDocFreq
[ 1121s] 
[ 1121s]  7 FAILED TESTS

This is from current master + fix for LTO from #200
Details:

[  839s] [ RUN      ] SortTest.testEmptyFieldSort
[  839s] unknown file: Failure
[  839s] C++ exception with description "config out of range" thrown in the test body.
[  839s] [  FAILED  ] SortTest.testEmptyFieldSort (5 ms)

[  839s] [ RUN      ] SortTest.testParallelMultiSort
[  839s] unknown file: Failure
[  839s] C++ exception with description "config out of range" thrown in the test body.
[  839s] [  FAILED  ] SortTest.testParallelMultiSort (4 ms)

[  841s] [----------] 5 tests from ParallelMultiSearcherTest
[  841s] [ RUN      ] ParallelMultiSearcherTest.testEmptyIndex
[  841s] unknown file: Failure
[  841s] C++ exception with description "config out of range" thrown in the test body.
[  841s] [  FAILED  ] ParallelMultiSearcherTest.testEmptyIndex (1 ms)
[  841s] [ RUN      ] ParallelMultiSearcherTest.testFieldSelector
[  841s] unknown file: Failure
[  841s] C++ exception with description "config out of range" thrown in the test body.
[  841s] [  FAILED  ] ParallelMultiSearcherTest.testFieldSelector (1 ms)
[  841s] [ RUN      ] ParallelMultiSearcherTest.testNormalization
[  841s] unknown file: Failure
[  841s] C++ exception with description "config out of range" thrown in the test body.
[  841s] [  FAILED  ] ParallelMultiSearcherTest.testNormalization (2 ms)
[  841s] [ RUN      ] ParallelMultiSearcherTest.testCustomSimilarity
[  841s] unknown file: Failure
[  841s] C++ exception with description "config out of range" thrown in the test body.
[  841s] [  FAILED  ] ParallelMultiSearcherTest.testCustomSimilarity (1 ms)
[  841s] [ RUN      ] ParallelMultiSearcherTest.testDocFreq
[  841s] unknown file: Failure
[  841s] C++ exception with description "config out of range" thrown in the test body.
[  841s] [  FAILED  ] ParallelMultiSearcherTest.testDocFreq (0 ms)
[  841s] [----------] 5 tests from ParallelMultiSearcherTest (5 ms total)