rbczmq error when installing iruby

Question

Am trying to install iruby on a windows machine and this error keeps appearing. Am currently doing some deep learning and I need to use sciruby and iruby to perform the actions required

PS C:\> gem install iruby
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing iruby:
        ERROR: Failed to build gem native extension.

    C:/RailsInstaller/Ruby2.1.0/bin/ruby.exe -r ./siteconf20150710-76680-1u0zekx.rb extconf.rb
checking for windows.h... yes
checking for winsock.h... yes
checking for main() in -lkernel32... yes
checking for main() in -lrpcrt4... yes
checking for main() in -lgdi32... yes
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=C:/RailsInstaller/Ruby2.1.0/bin/ruby
        --with-kernel32lib
        --without-kernel32lib
        --with-rpcrt4lib
        --without-rpcrt4lib
        --with-gdi32lib
        --without-gdi32lib
extconf.rb:49:in `<main>': uninitialized constant GNU_CHAIN (NameError)

extconf failed, exit code 1

Gem files will remain installed in C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/rbczmq-1.7.9 for inspection.
Results logged to C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/extensions/x86-mingw32/2.1.0/rbczmq-1.7.9/gem_make.out

Please assist solving this problem

Any progress on that? I ran into the same issue. – Yegoshin Maxim Sep 04 '15 at 15:51 — Yegoshin Maxim, Sep 04 '15 at 15:51

score 0 · Answer 1 · answered Aug 22 '15 at 15:36

I am new to python and know nothing about ruby, but I find ipython notebook so amazing that I want give it a try for another kernel,
so I just installed ruby and end up with the same problem, and google failed to help me，，，
but I am really good at patching things, after one hour of @#$@%&%@%!(@!, I found a way:
edit C:\Ruby22-x64\lib\ruby\gems\2.2.0\gems\rbczmq-1.7.9\ext\rbczmq\extconf.rb
add statement GNU_CHAIN = 1 on the top
cd C:\Ruby22-x64\lib\ruby\gems\2.2.0\gems\rbczmq-1.7.9
gem spec ....\cache\rbczmq-1.7.9.gem --ruby > ....\specifications\rbczmq-1.7.9.gem.gemspec
gem build ....\specifications\rbczmq-1.7.9.gem.gemspec
now, gem list shows "rbczmq (1.7.9)"

I knew nothing about ruby, so I dont know whether rbczmq really works or not
"iruby notebook" starts succ and new kernel "ruby 2.2.2" added, but it also says "kernel error" when I choose it
the Track back says: "OSError: [WinError 193]"

That's all I can help for now, so maybe you can figure it out now and tell me how to make the new kernel do its trick

It turns out to be not that easy, let's do it manually: ``` cd ext/zeromq/builds/mingw32 make -f Makefile.mingw32 rename libzmq.dll.a to libzmq.a copy libzmq.dll libzmq.a C:\Ruby22-x64\lib cd ext/czmq/builds/mingw32 make -f Makefile.mingw32 rename libczmq.dll.a to libczmq.a copy libczmq.dll libczmq.dll.a C:\Ruby22-x64\lib cd ext/rbczmq ruby extconf.rb make copy rbczmq_ext.so to C:\Ruby22-x64\lib\ruby\2.2.0\x64-mingw32 and rename to rbczmq.so copy libgcc_s_sjlj-1.dll libstdc++-6.dll from DevKit to C:\Ruby22-x64\bin ``` — mfmain, Aug 24 '15 at 02:23
seems the rbczmq gem is broken switched to ffi-rzmq gem and so far so good works perfectly — Chris K. Mucheke, Aug 24 '15 at 09:39

rbczmq error when installing iruby

1 Answers1