Loading error in macOS on GitHub Actions

[traversaro]

I am using this recipe in a CI system, and the running of a simple program is failing in macOS with the following error:

2020-11-18T11:51:34.3357760Z [374/1056] Linking CXX executable bin/yarpidl_rosmsg
2020-11-18T11:51:34.3358720Z [375/1056] Generating code from ../../../extern/ros/geometry2/tf2_msgs/msg/TF2Error.msg
2020-11-18T11:51:34.3359650Z FAILED: src/libYARP_rosmsg/src/yarp/rosmsg/tf2_msgs/TF2Error.h src/libYARP_rosmsg/src/tf2_msgs/TF2Error.h src/libYARP_rosmsg/src/tf2_msgs_TF2Error.h 
2020-11-18T11:51:34.3364520Z cd /Users/runner/work/robotology-superbuild/robotology-superbuild/robotology/YARP/src/libYARP_rosmsg/src && /Users/runner/work/robotology-superbuild/robotology-superbuild/build/robotology/YARP/bin/yarpidl_rosmsg --no-index --no-ros true --no-cache --out /Users/runner/work/robotology-superbuild/robotology-superbuild/build/robotology/YARP/src/libYARP_rosmsg/src ../../../extern/ros/geometry2/tf2_msgs/msg/TF2Error.msg
2020-11-18T11:51:34.3367390Z dyld: Library not loaded: @rpath/64/libACE.dylib
2020-11-18T11:51:34.3368890Z   Referenced from: /Users/runner/work/robotology-superbuild/robotology-superbuild/build/robotology/YARP/bin/yarpidl_rosmsg
2020-11-18T11:51:34.3370150Z   Reason: image not found
2020-11-18T11:51:34.3373010Z /bin/sh: line 1: 17584 Abort trap: 6           /Users/runner/work/robotology-superbuild/robotology-superbuild/build/robotology/YARP/bin/yarpidl_rosmsg --no-index --no-ros true --no-cache --out /Users/runner/work/robotology-superbuild/robotology-superbuild/build/robotology/YARP/src/libYARP_rosmsg/src ../../../extern/ros/geometry2/tf2_msgs/msg/TF2Error.msg

Environment (conda list):

See https://github.com/robotology/robotology-superbuild/pull/513

Details about conda and system ( conda info ):

See https://github.com/robotology/robotology-superbuild/pull/513

I wondering if there is some rpath error. The same program runs fine on Linux. A possible strategy is to add a simple step in the recipe that compiles and run a program that uses ACE, as done for example in https://github.com/conda-forge/ipopt-feedstock/blob/master/recipe/run_test.sh .

[wolfv]

yes this sounds like an RPATH issue ... https://cmake.org/cmake/help/v3.0/prop_tgt/MACOSX_RPATH.html

[wolfv]

right, sorry, this didn't use cmake 🤦

[jwillemsen]

Maybe try a different platform file which uses rpath

https://github.com/DOCGroup/ACE_TAO/blob/25f5307a46b10ebe7f26f46c006892f0e249c365/ACE/include/makeinclude/platform_macosx_yosemite.GNU#L6

[jwillemsen]

Looks we detect the macosx version, which version does your CI use, maybe the rpath support in ACE could move to an older version

[traversaro]

One thing that I am probably missing: in conda/conda-forge all the shared libraries get installed in a single directory <prefix>/lib, so we don't want to have rpath enabled at all, am I right?

[wolfv]

conda-build and conda relocate binaries: that's why the install prefix is so super-long because it gets replaced by the install prefix when running conda install.

So if you have an absolute rpath to the install prefix, conda-build will detect that and conda will replace it with the final prefix when installing. That way libraries and all are relocatable.

Does this explanation make sense? :) I can retry tomorrow morning.

[traversaro]

Yes, totally, so if rpath is enable or not if should not make a difference. However, from the error it is not clear how the rpath is set, but it seems that it would be expect the libACE.dylib library to be part of a directory called /64, that is definitely not the case.

[wolfv]

Yeah it probably uses the rpath where it builds, but not where it installs :/

[traversaro]

I reproduced the same error with a small test as part of the build of the recipe itself in #12 :

dyld: Library not loaded: @rpath/64/libACE.dylib
  Referenced from: /Users/runner/miniforge3/conda-bld/ace_1605999465756/test_tmp/./ace_example
  Reason: image not found
/Users/runner/miniforge3/conda-bld/ace_1605999465756/test_tmp/run_test.sh: line 11:  5728 Abort trap: 6           ./ace_example
Tests failed for ace-6.5.12-h2e338ed_0.tar.bz2 - moving package to /Users/runner/miniforge3/conda-bld/broken

[traversaro]

The problem was discussed in #12 (comment) and will be fixed by #12 .

[wolfv]

Fixed?

[traversaro]

Yes, the build at robotology/robotology-superbuild#513 are also now working correctly, thanks!

[wolfv]

awesome!