[package] boost/1.73.0: undefined reference to `jump_fcontext' #3159
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bug
Something isn't working
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See the Boost.Context docs. Is your assembler configured correctly? |
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@madebr thanks for the hint, I found those lines which do not look too wrong: and this is the dump of the object files: |
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and one directory up is a static library looking good too: |
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Ok, then let's focus on the boost cmake test_package script. CMake is complaining about the boost version that is too recent and you're using an old cmake 3.10. I have a pr that let's conan generate the cmake imported boost targets at #2097 |
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I see that I get those warnings, maybe they have anything to do with it?: and here is the linker output you are looking for I guess: For me it looks good or should there be more linked into the test program? |
My cmake version (3.17.2) displays similar warnings, and ends up working just fine.
For reference, the linking command for me (gcc9@Linux) is: It's more or less the same. Can you try/check the following?
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The latest conan version I could test so far was 1.30 and it did not make a difference. About the symlink, it is the following: Also setting CC and CXX explicitly did not change anything for me. Except if some caching played a trick on me. |
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I can reproduce your problem, First, I built boost without using conan. Then I compiled the coroutine application without conan/cmake. But when leaving out the context library, your error appears: Looking at your comment in #3159 (comment), |
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Yes I have overlooked this the first time. libboost_context is missing! And if I add it to the link command manually it resolves everything. Now of course is the question, why is it missing? The generated conanbuildinfo.cmake looks good and contains boost_context: But if I look into the build.make file in the CMakeFiles/coroutine_exe.dir directory I see this, missing context: So I wonder, how is the list of libraries to link to generated, and why is it missing boost_context in the static case? |
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Ok, I am not sure if I got this logic right, Ubuntu 18.04 comes with CMake 3.10.2 which only knows boost up to version 1.65. |
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Can you try #2097? Apart from this, you can also use the cmake package from conan-center-index as a build requirement (RECOMMENDED) |
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Hmm is this patch compatible with conan-package-tools? |
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@sturmf |
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I've created conan-io/conan#7874 to get some feedback on my boost recipe. |
1 task
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I just now created a pull request to change the line from This fixes the problem for me and seems to be in line with other test executables also linked this way. |
4 tasks
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@madebr One question, can you look over my pull request? Is it in the correct form or should I have provided it differently? |
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We also have #2205, does that fix your issue? |
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@madebr I just rebased to the latest conan-center-index version which has #2205 merged. Unfortunately it still does not work under Ubuntu 18.04. I think it even made it worse and now can't resolve any library: |
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This has been solved with the boost package restructuring, thanks!. |
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Package and Environment Details (include every applicable attribute)
Conan profile (output of
conan profile show defaultorconan profile show <profile>if custom profile is in use)This gets enhanced by the selected settings of the conan-package-builder:
Steps to reproduce (Include if Applicable)
Running conan-package-tools 0.34.3 can build the first boost variants (shared=True) without problems but fails on this one which seems to be the first with shared=False. The failure seems to happen during the test_package linking step of coroutine_exe.
Logs (Include/Attach if Applicable)
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