I'm using CentOS 7.6 and having the same problem. My solution was to install an older tag - just before they updated to llvm 6. ./emsdk install sdk-tag-1.38.2-64bit ./emsdk activate sdk-tag-1.38.2-64bit
After this [emmake cmake .. && emmake make] worked fine - successfully generated .bc. But then emcc started to complain "cannot find binaryen js libraries". This problem seems fixed in 1.38.8 - https://github.com/emscripten-core/emsdk/issues/157 I struggle to find the exact change which fixed it. Anyone knows if it's possible to patch sdk-tag-1.38.2 locally and get it sorted? Or maybe it just needs the right build configuration? To restate the problem: We need a working emsdk with llvm 5. On Thursday, 21 February 2019 17:15:05 UTC, Mike Alberghini wrote: > > One of our devs requested emscripten on our build nodes. I'm trying to > get it working on our build nodes, which are Red Hat 7.6. I keep hitting > roadblocks and I'm wondering if anyone has managed to get this working on > RHEL. > > Problem 1: new clang meets old libstdc++ > > When I install the SDK by following the directions, running emcc -v > returns: > > clang++: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found > (required by clang++) > clang++: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found > (required by clang++) > > Seems the version of clang that comes with emscripten does not like the > old c libs on Red Hat. > > I know that Red Hat has a newer verison of clang available, so I track > that down in llvm-toolset-6.0 > > Problem 2: Red Hat clang is not the clang emscripten is looking for > > Now when I run emcc -v I get > > shared:CRITICAL: fastcomp in use, but LLVM has not been built with the > JavaScript backend as a target, llc reports > > shared:CRITICAL: you can fall back to the older (pre-fastcomp) compiler > core, although that is not recommended, see > http://kripken.github.io/emscripten-site/docs/building_from_source/LLVM-Backend.html > shared:ERROR: failing sanity checks due to previous llvm failure > > Has anyone managed to get emscripten working on RHEL? Do I need to > compile fastcomp to get this all working? > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
