[tests] One test failing on OpenBSD

I have a finished port of pcl on OpenBSD and all tests are passing except the following one (apologies for the long code-block, for some reason the <details> block wasn't working):

67/131 Testing: filters_sampling
67/131 Test: filters_sampling
Command: "/usr/ports/pobj/pcl-1.14.1/build-amd64/test/filters/test_filters_sampling" "/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/sac_plane_test.pcd" "/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/cturtle.pcd"
Directory: /usr/ports/pobj/pcl-1.14.1/build-amd64/test/filters
"filters_sampling" start time: Nov 23 15:05 CET
Output:
----------------------------------------------------------
[==========] Running 3 tests from 3 test suites.
[----------] Global test environment set-up.
[----------] 1 test from CovarianceSampling
[ RUN      ] CovarianceSampling.Filters
[       OK ] CovarianceSampling.Filters (467 ms)
[----------] 1 test from CovarianceSampling (468 ms total)

[----------] 1 test from NormalSpaceSampling
[ RUN      ] NormalSpaceSampling.Filters
[       OK ] NormalSpaceSampling.Filters (0 ms)
[----------] 1 test from NormalSpaceSampling (0 ms total)

[----------] 1 test from RandomSample
[ RUN      ] RandomSample.Filters
/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.13532000780105591, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 0.746940016746521,
cloud_out[i].x evaluates to 0.8822600245475769, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.035482000559568405, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to 0.061050001531839371,
cloud_out[i].y evaluates to 0.096532002091407776, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.093139998614788055, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to 0.21504999697208405,
cloud_out[i].z evaluates to 0.12190999835729599, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.16710007190704346, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.169700026512146,
cloud_out[i].x evaluates to 1.0025999546051025, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.11173499748110771, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to -0.07779499888420105,
cloud_out[i].y evaluates to 0.033939998596906662, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.06676039844751358, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to -0.0049254000186920166,
cloud_out[i].z evaluates to 0.061834998428821564, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.52496999502182007, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.2644000053405762,
cloud_out[i].x evaluates to 0.7394300103187561, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.53175699710845947, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to -0.46367999911308289,
cloud_out[i].y evaluates to 0.068076997995376587, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.085060000419616699, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to 0.12296999990940094,
cloud_out[i].z evaluates to 0.20803000032901764, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.41408997774124146, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 0.97210997343063354,
cloud_out[i].x evaluates to 1.386199951171875, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.30687500536441803, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to -0.075084999203681946,
cloud_out[i].y evaluates to -0.38196000456809998, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.14896999672055244, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to 0.13686999678611755,
cloud_out[i].z evaluates to -0.012099999934434891, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.015799999237060547, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.117400050163269,
cloud_out[i].x evaluates to 1.1332000494003296, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.58767998218536377, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to 0.20919999480247498,
cloud_out[i].y evaluates to -0.37847998738288879, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.27554000169038773, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to -0.10115999728441238,
cloud_out[i].z evaluates to 0.17438000440597534, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.17079997062683105, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.2455999851226807,
cloud_out[i].x evaluates to 1.4163999557495117, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.49975098669528961, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to 0.059230998158454895,
cloud_out[i].y evaluates to -0.44051998853683472, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.23713169433176517, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to -0.24710999429225922,
cloud_out[i].z evaluates to -0.0099782999604940414, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.083500027656555176, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.3276000022888184,
cloud_out[i].x evaluates to 1.4111000299453735, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.37752000987529755, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to -0.14044000208377838,
cloud_out[i].y evaluates to -0.51796001195907593, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.12269199639558792, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to -0.091027997434139252,
cloud_out[i].z evaluates to 0.031663998961448669, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.477649986743927, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.2958999872207642,
cloud_out[i].x evaluates to 0.81825000047683716, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.021604999899864197, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to -0.098802000284194946,
cloud_out[i].y evaluates to -0.07719700038433075, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.42886999249458313, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to -0.17535999417304993,
cloud_out[i].z evaluates to 0.2535099983215332, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:174: Failure
The difference between (*cloud_walls)[indices[i]].x and cloud_out[i].x is 0.04440009593963623, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].x evaluates to 1.3631000518798828,
cloud_out[i].x evaluates to 1.3186999559402466, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:175: Failure
The difference between (*cloud_walls)[indices[i]].y and cloud_out[i].y is 0.071829989552497864, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].y evaluates to -0.24099999666213989,
cloud_out[i].y evaluates to -0.16917000710964203, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:176: Failure
The difference between (*cloud_walls)[indices[i]].z and cloud_out[i].z is 0.054789997637271881, which exceeds 1e-4, where
(*cloud_walls)[indices[i]].z evaluates to -0.084090001881122589,
cloud_out[i].z evaluates to -0.13887999951839447, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.2284199595451355, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 0.90428000688552856,
cloud_out[i].x evaluates to 1.1326999664306641, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.13600100018084049, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to 0.11766000092029572,
cloud_out[i].y evaluates to -0.018340999260544777, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.10837760381400585, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to 0.1030300036072731,
cloud_out[i].z evaluates to -0.0053476002067327499, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.28091001510620117, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.0195000171661377,
cloud_out[i].x evaluates to 0.73859000205993652, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.27792400773614645, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to -0.011963999830186367,
cloud_out[i].y evaluates to 0.26596000790596008, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.06136699765920639, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to 0.077432997524738312,
cloud_out[i].z evaluates to 0.1387999951839447, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.13488996028900146, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.0673999786376953,
cloud_out[i].x evaluates to 0.93251001834869385, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.38509999215602875, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to -0.26350998878479004,
cloud_out[i].y evaluates to 0.12159000337123871, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.090688005089759827, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to 0.16467000544071198,
cloud_out[i].z evaluates to 0.073982000350952148, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.1417999267578125, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.1528999805450439,
cloud_out[i].x evaluates to 1.0111000537872314, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.25688101164996624, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to -0.27755001187324524,
cloud_out[i].y evaluates to -0.020669000223278999, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.025024004280567169, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to 0.11364000290632248,
cloud_out[i].z evaluates to 0.08861599862575531, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.47460001707077026, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.1964000463485718,
cloud_out[i].x evaluates to 0.72180002927780151, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.37826000154018402, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to -0.23783999681472778,
cloud_out[i].y evaluates to 0.14042000472545624, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.16248800233006477, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to 0.055461999028921127,
cloud_out[i].z evaluates to 0.2179500013589859, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.094720005989074707, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 0.87834000587463379,
cloud_out[i].x evaluates to 0.9730600118637085, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.11180000007152557, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to -0.21128000319004059,
cloud_out[i].y evaluates to -0.099480003118515015, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.1198900043964386, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to 0.27511000633239746,
cloud_out[i].z evaluates to 0.15522000193595886, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.036999940872192383, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.086899995803833,
cloud_out[i].x evaluates to 1.0499000549316406, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.61370998620986938, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to 0.35444998741149902,
cloud_out[i].y evaluates to -0.25925999879837036, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.30862000584602356, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to -0.13671000301837921,
cloud_out[i].z evaluates to 0.17191000282764435, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.13580000400543213, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.1421999931335449,
cloud_out[i].x evaluates to 1.2779999971389771, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.21322400495409966, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to 0.17111000418663025,
cloud_out[i].y evaluates to -0.042114000767469406, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.098091006278991699, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to -0.099188998341560364,
cloud_out[i].z evaluates to -0.19728000462055206, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:240: Failure
The difference between (*cloud_walls)[indices2[i]].x and cloud_out[i].x is 0.1128000020980835, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].x evaluates to 1.3722000122070312,
cloud_out[i].x evaluates to 1.2594000101089478, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:241: Failure
The difference between (*cloud_walls)[indices2[i]].y and cloud_out[i].y is 0.31408799439668655, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].y evaluates to -0.33634999394416809,
cloud_out[i].y evaluates to -0.022261999547481537, and
1e-4 evaluates to 0.0001.

/usr/ports/pobj/pcl-1.14.1/pcl-pcl-1.14.1/test/filters/test_sampling.cpp:242: Failure
The difference between (*cloud_walls)[indices2[i]].z and cloud_out[i].z is 0.2145290020853281, which exceeds 1e-4, where
(*cloud_walls)[indices2[i]].z evaluates to -0.023381000384688377,
cloud_out[i].z evaluates to -0.23791000247001648, and
1e-4 evaluates to 0.0001.

[  FAILED  ] RandomSample.Filters (6 ms)
[----------] 1 test from RandomSample (6 ms total)

[----------] Global test environment tear-down
[==========] 3 tests from 3 test suites ran. (475 ms total)
[  PASSED  ] 2 tests.
[  FAILED  ] 1 test, listed below:
[  FAILED  ] RandomSample.Filters

 1 FAILED TEST
<end of output>
Test time =   1.02 sec
----------------------------------------------------------
Test Failed.
"filters_sampling" end time: Nov 23 15:05 CET
"filters_sampling" time elapsed: 00:00:01
----------------------------------------------------------

Any clues? I'm compiling pcl version 1.14.1

Reproduce the filters_sampling failure on OpenBSD using the reported test command and inspect test/filters/test_sampling.cpp around lines 174-176 and 240-242. Trace the RandomSample test and its input point-cloud data to determine why the sampled coordinates differ on this platform. Done means the test passes on OpenBSD while preserving the existing sampling checks on other platforms.