Fix #428: adding missing include for std::array

[matthiasrichter]

std::array is used in test_DataDeflater.cxx, but the include was
missing, some compilers seem to be more strict on that and fail.

Also suppressing a warning by using the static_assert with two
arguments (condition and error string)

[alibuild]

Error while checking build/o2checkcode/o2-daq for f249474:

sw/BUILD/O2-latest/log
Start 2: testDataHeader
2/24 Test #2: testDataHeader ................... Passed 0.56 sec
Start 3: testTimeStamp
3/24 Test #3: testTimeStamp .................... Passed 0.55 sec
Start 4: testBasicHits
4/24 Test #4: testBasicHits .................... Passed 0.60 sec
Start 5: TimeFrameTest
5/24 Test #5: TimeFrameTest .................... Passed 0.69 sec
Start 6: testTPCBase
6/24 Test #6: testTPCBase ...................... Passed 0.54 sec
Start 7: testTPCCalDet
7/24 Test #7: testTPCCalDet .................... Passed 1.00 sec
Start 8: testTPCMapper
8/24 Test #8: testTPCMapper .................... Passed 0.65 sec
Start 9: testTPCSyncPatternMonitor
9/24 Test #9: testTPCSyncPatternMonitor ........ Passed 0.70 sec
Start 10: testTPCAdcClockMonitor
10/24 Test #10: testTPCAdcClockMonitor ........... Passed 0.69 sec
Start 11: testTPCElectronTransport
11/24 Test #11: testTPCElectronTransport ......... Passed 0.94 sec
Start 12: testTPCGEMAmplification
12/24 Test #12: testTPCGEMAmplification .......... Passed 30.67 sec
Start 13: testTPCSimulation
13/24 Test #13: testTPCSimulation ................ Passed 0.72 sec
Start 14: testExampleModule1
14/24 Test #14: testExampleModule1 ............... Passed 0.02 sec
Start 15: testMessageFormat
15/24 Test #15: testMessageFormat ................ Passed 0.61 sec
Start 16: O2MessageMonitorTest
16/24 Test #16: O2MessageMonitorTest ............. Passed 0.65 sec
Start 17: test_TimeframeParser
17/24 Test #17: test_TimeframeParser ............. Passed 0.58 sec
Start 18: test_SubframeUtils01
18/24 Test #18: test_SubframeUtils01 ............. Passed 0.71 sec
Start 19: test_PayloadMerger01
19/24 Test #19: test_PayloadMerger01 ............. Passed 0.64 sec
Start 20: test_dc_primitives
20/24 Test #20: test_dc_primitives ............... Passed 0.01 sec
Start 21: test_Fifo
21/24 Test #21: test_Fifo ........................ Passed 7.01 sec
Start 22: test_DataGenerator
22/24 Test #22: test_DataGenerator ............... Passed 1.76 sec
Start 23: test_HuffmanCodec
23/24 Test #23: test_HuffmanCodec ................ Passed 0.64 sec
Start 24: test_DataDeflater
24/24 Test #24: test_DataDeflater ................ Passed 0.02 sec
100% tests passed, 0 tests failed out of 24

Full log here.

[sawenzel]

@matthiasrichter: Can you please also fix this

/mnt/mesos/sandbox/sandbox/sw/SOURCES/O2/0_O2_DAQ/0//Utilities/DataCompression/include/DataCompression/DataDeflater.h:1:1: error: missing or malformed copyright notice

to make the code checker happy?

[sawenzel]

As discussed in #428, there is a compile error on MacOs with Apple LLVM version 8.0.0 (clang-800.0.42.1):

/Users/swenzel/alisw_new/sw/SOURCES/O2/dev/0/Utilities/aliceHLTwrapper/src/Component.cxx:169:13: error: use of undeclared identifier 'ENOKEY'
DEBUG:O2:0: return -ENOKEY;

This is super strange since you already seem to include the right header. Other symbols such as ENOSYS are found.

[sawenzel]

Merging this pull request in order not to block other people (broken compilation on MacOS).
I have fixed the ENOKEY problem directly in dev. Will leave the issue #428 open to correctly follow this up. The copyright notice problem will be followed up in #427.