Truffleruby: Can't install gems, openssl not loading

[brauliobo]

Installed with instructions at https://github.com/oracle/truffleruby/issues/1062#issuecomment-382202615

~/P/o/Review-collector ❯❯❯ gem install bundler                                                                                                                             master ✭ ✱
ERROR:  Loading command: install (RuntimeError)
        java.io.IOException: Error while trying to parse null (RuntimeException)
        from java.lang.Throwable.<init>(Throwable.java:310)
        from java.lang.Exception.<init>(Exception.java:102)
        from java.lang.RuntimeException.<init>(RuntimeException.java:96)
        from com.oracle.truffle.api.TruffleLanguage.parse(TruffleLanguage.java:1062)
        from com.oracle.truffle.api.TruffleLanguage$Env.parse(TruffleLanguage.java:1568)
        from org.truffleruby.language.loader.FeatureLoader.lambda$loadCExtLibrary$2(FeatureLoader.java:279)
        from org.truffleruby.language.loader.FeatureLoader$$Lambda$1224/1911388477.accept(Unknown Source)
        from org.truffleruby.cext.Linker.loadLibrary(Linker.java:135)
        from org.truffleruby.language.loader.FeatureLoader.loadCExtLibrary(FeatureLoader.java:275)
        from org.truffleruby.language.loader.RequireNode.requireCExtension(RequireNode.java:172)
Caused by:
Error while trying to parse null (IOException)
        from java.lang.Throwable.<init>(Throwable.java:287)
        from java.lang.Exception.<init>(Exception.java:84)
        from java.io.IOException.<init>(IOException.java:81)
        from com.oracle.truffle.llvm.Runner.parse(Runner.java:273)
        from com.oracle.truffle.llvm.Sulong.parse(Sulong.java:114)
        from com.oracle.truffle.api.TruffleLanguage$ParsingRequest.parse(TruffleLanguage.java:596)
        from com.oracle.truffle.api.TruffleLanguage.parse(TruffleLanguage.java:1058)
        from com.oracle.truffle.api.TruffleLanguage$Env.parse(TruffleLanguage.java:1568)
        from org.truffleruby.language.loader.FeatureLoader.lambda$loadCExtLibrary$2(FeatureLoader.java:279)
        from org.truffleruby.language.loader.FeatureLoader$$Lambda$1224/1911388477.accept(Unknown Source)
Caused by:
External function @SSLv23_method cannot be found. (LinkageError)
        from java.lang.Throwable.<init>(Throwable.java:265)
        from java.lang.Error.<init>(Error.java:70)
        from java.lang.LinkageError.<init>(LinkageError.java:55)
        from com.oracle.truffle.llvm.runtime.NFIContextExtension.getNativeFunction(NFIContextExtension.java:293)
        from com.oracle.truffle.llvm.runtime.LLVMFunctionDescriptor$UnresolvedFunction.resolve(LLVMFunctionDescriptor.java:213)
        from com.oracle.truffle.llvm.runtime.LLVMFunctionDescriptor$UnresolvedFunction.createNativeWrapper(LLVMFunctionDescriptor.java:231)
        from com.oracle.truffle.llvm.runtime.LLVMFunctionDescriptor.toNative(LLVMFunctionDescriptor.java:495)
        from com.oracle.truffle.llvm.runtime.LLVMFunctionDescriptor$LLVMFunctionDescriptorNativeLibrary.toNative(LLVMFunctionDescriptor.java:458)
        from com.oracle.truffle.llvm.runtime.LLVMFunctionDescriptor$LLVMFunctionDescriptorNativeLibrary.toNative(LLVMFunctionDescriptor.java:436)
        from com.oracle.truffle.llvm.runtime.nodes.api.LLVMObjectNativeFactory$CachedToNativeNode.toNative(LLVMObjectNativeFactory.java:232)
Translated to internal error
ERROR:  While executing gem ... (NoMethodError)
    undefined method `invoke_with_build_args' for nil:NilClass

[eregon]

Looks like you're missing libssl, or it's a different version, see
https://github.com/oracle/truffleruby#system-compatibility.

The error message should be much nicer though, this seems like a regression.
Probably we should test this in Docker. cc @chrisseaton

[brauliobo]

Ok, I'm using https://www.archlinux.org/packages/core/x86_64/openssl/, which version is supported?

[eregon]

See https://github.com/oracle/truffleruby/blob/master/doc/user/installing-libssl.md
So, currently 1.0.2.
We plan to update to Ruby 2.4 which should allow using a newer OpenSSL.

[brauliobo]

weird, it is also installed, but somehow not detected (from this package https://www.archlinux.org/packages/core/x86_64/openssl-1.0/)

[chrisseaton]

OpenSSL's linking to your system libssl is quite delicate. You'll see that we often install a development package as otherwise the library isn't where we expect.

You can also set an explicit path for libraries:

-Xcexts.remap=libssl.so:path/to/libssl.so

At the moment we've got that small set of compatible Linux distributions that we know work because we test them and don't have much time to expand it.

[brauliobo]

Ok, wasn't hard to make it work in the end:

~ ❯❯❯ TRUFFLERUBYOPT='-Xcexts.remap=libssl.so:/usr/lib/libssl.so.1.0.0' gem install bundler
Fetching: bundler-1.16.1.gem (100%)
Successfully installed bundler-1.16.1
1 gem installed

[chrisseaton]

I'll close this unless you need anything else? I think this is already covered by saying that we don't explicitly support Arch Linux. I'll just make it more clear for each library that -Xcexts.remap is an action.

[brauliobo]

sure, thank you :)