Building for ARM64v8 gives mve errors

[PeterSprague]

Building with arm64v8/ubuntu:16.04 base image for Docker as part of OpenDroneMap build

Gets compile errors from MVE:
Scanning dependencies of target ext_mve
[Build] [ 29%] Creating directories for 'ext_mve'
[Build] [ 31%] Performing download step (git clone) for 'ext_mve'
[Build] Cloning into 'mve'...
[Build] Already on 'master'
[Build] Your branch is up-to-date with 'origin/master'.
[Build] [ 33%] No patch step for 'ext_mve'
[Build] [ 35%] No update step for 'ext_mve'
[Build] [ 36%] No configure step for 'ext_mve'
[Build] [ 38%] Performing build step for 'ext_mve'
[Build] g++: error: unrecognized command line option '-msse2'
[Build] g++: error: unrecognized command line option '-msse3'
[Build] g++: error: unrecognized command line option '-msse4'
[Build] g++: error: unrecognized command line option '-mpopcnt'
[Build] g++: error: unrecognized command line option '-msse2'
[Build] g++: error: unrecognized command line option '-msse3'
[Build] g++: error: unrecognized command line option '-msse4'
[Build] g++: error: unrecognized command line option '-mpopcnt'
[Build] ../../Makefile.inc:29: recipe for target 'mesh_io_pbrt.o' failed
[Build] make[6]: *** [mesh_io_pbrt.o] Error 1
[Build] elibs/CMakeFiles/ext_mve.dir/build.make:111: recipe for target 'elibs/mve/src/ext_mve-stamp/ext_mve-build' failed
[Build] make[5]: *** [elibs/mve/src/ext_mve-stamp/ext_mve-build] Error 2
[Build] CMakeFiles/Makefile2:163: recipe for target 'elibs/CMakeFiles/ext_mve.dir/all' failed
[Build] make[4]: *** [elibs/CMakeFiles/ext_mve.dir/all] Error 2
[Build] Makefile:127: recipe for target 'all' failed
[Build] make[3]: *** [all] Error 2
[Build] CMakeFiles/mvstexturing.dir/build.make:113: recipe for target 'mvstexturing/stamp/mvstexturing-build' failed
[Build] make[2]: *** [mvstexturing/stamp/mvstexturing-build] Error 2
[Build] CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/mvstexturing.dir/all' failed
[Build] make[1]: *** [CMakeFiles/mvstexturing.dir/all] Error 2
[Build] Makefile:83: recipe for target 'all' failed
[Build] make: *** [all] Error 2
[Build] Removing intermediate container ae32708bdcd1
[Error] Build failed: The command '/bin/sh -c cd /code/SuperBuild && mkdir build && cd build && cmake .. && make' returned a non-zero code: 2

I believe they are related to amd64 vs arm64 compiler flags. See: https://stackoverflow.com/questions/10686638/whats-the-differrence-among-cflgs-sse-options-of-msse-msse2-mssse3-msse4#10687419
Need some sort of work-around if I want to use OpenDroneMap on ARM based field equipment.

[simonfuhrmann]

Is that because ARM doesn't support SSE? Try to remove the SSE flags from the Makefiles.

[PeterSprague]

Commented out line-4 of Makefile.inc. Went through rest of makefiles, nothing obvious.

Now builds to this error:
[ 54%] Built target ext_mve
[Build] Scanning dependencies of target tex
[Build] [ 55%] Building CXX object libs/tex/CMakeFiles/tex.dir/build_adjacency_graph.cpp.o
[Build] c++: error: unrecognized command line option '-mfpmath=sse'
[Build] libs/tex/CMakeFiles/tex.dir/build.make:62: recipe for target 'libs/tex/CMakeFiles/tex.dir/build_adjacency_graph.cpp.o' failed

[simonfuhrmann]

Remove this SSE flag as well, because ARM doesn't support SSE.

[PeterSprague]

Thanks, was being myopic