undefined symbol: sigar_skip_token

[jhass]

ruby: symbol lookup error: .... ruby/2.2.0/extensions/x86_64-linux/2.2.0/sigar-0.7.3/sigar.so: undefined symbol: sigar_skip_token

• Archlinux x86_64

• ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]

• Happens with:

  Using built-in specs.
  COLLECT_GCC=/usr/bin/gcc
  COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/lto-wrapper
  Target: x86_64-unknown-linux-gnu
  Configured with: /build/gcc-multilib/src/gcc-5-20150519/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib --disable-werror --enable-checking=release --with-default-libstdcxx-abi=c++98
  Thread model: posix
  gcc version 5.1.0 (GCC) 
  

• Happens with:

  clang version 3.6.1 (tags/RELEASE_361/final)
  Target: x86_64-unknown-linux-gnu
  Thread model: posix
  Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-unknown-linux-gnu/5.1.0
  Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.1.0
  Found candidate GCC installation: /usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0
  Found candidate GCC installation: /usr/lib64/gcc/x86_64-unknown-linux-gnu/5.1.0
  Selected GCC installation: /usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.1.0
  Candidate multilib: .;@m64
  Candidate multilib: 32;@m32
  Selected multilib: .;@m64
  

[jhass]

Further investigation shows this is caused by a change in inlining behaviour,

gem install sigar -- --with-cppflags="-fgnu89-inline"

works around this. For bundler do

bundle config --local build.sigar '--with-cppflags="-fgnu89-inline"'

[l29ah]

Thanks.

[tetherit]

Any updates on a permanent fix?

[verymilan]

I ran into this problem with Debian 8 also.

[anatol]

Just have this problem at Arch Linux. Any update on the fix?

[MhdSyrwan]

Is there any updates regarding this issue ?

[tarasmatsyk]

Workaround did not work for Ubuntu 16.04 LTS

[tarator]

For me the fix mentioned above worked (Fresh Ubuntu 16.04, with rvm)
gem install sigar -- --with-cppflags="-fgnu89-inline"

[hilkoc]

For me the workaround
gem install sigar -- --with-cppflags="-fgnu89-inline"
worked on ubuntu 16.04.1 LTS. Thanks @jhass

[roflomglol]

@jhass @tarator thanks, guys! Works regardless of ruby version management system, I mean it worked for rbenv too.

[amreesh]

:( workaround didn't work on my ubuntu 16.04

/home/diaspora/diaspora/vendor/bundle/ruby/2.3.0/bin/loader_eye --stop_all -c config/eye.rb: symbol lookup error: /home/diaspora/diaspora/vendor/bundle/ruby/2.3.0/gems/sigar-0.7.3/lib/sigar.so: undefined symbol: sigar_skip_token

[FinnWoelm]

Did you get it to work, @amreesh ? I just spent about four hours trying all kinds of different things... And now it's working. Please don't ask me why or how but it is possible... :o

[AlexYaruki]

I don't have experience with Ruby but problem is with manual installation or with gem tool (package management ?)

[kostya]

i think i fix it in my fork https://github.com/kostya/sigar, can someone check that it installed? gem install kostya-sigar

[leskin-in]

The first solution #60 (comment) works on Ubuntu 16.04 when building libsigar manually:

./autogen.sh && ./configure && make CFLAGS=-fgnu89-inline && sudo make install