[DRE-maint] Bug#841611: ruby-gsl: FTBFS: ERROR: Test "ruby2.3" failed: /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': /<<BUILDDIR>>/ruby-gsl-1.16.0.6+dfsg1/debian/ruby-gsl/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/gsl_native.so: undefined symbol: gsl_sf_legendre_array_size - /<<BUILDDIR>>/ruby-gsl-1.16.0.6+dfsg1/debian/ruby-gsl/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/gsl_native.so (LoadError)

[Lucas Nussbaum]

Source: ruby-gsl
Version: 1.16.0.6+dfsg1-2
Severity: serious
Tags: stretch sid
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20161021 qa-ftbfs
Justification: FTBFS on amd64

Hi,

During a rebuild of all packages in sid, your package failed to build on
amd64.

Relevant part (hopefully):
> /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': /<<BUILDDIR>>/ruby-gsl-1.16.0.6+dfsg1/debian/ruby-gsl/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/gsl_native.so: undefined symbol: gsl_sf_legendre_array_size - /<<BUILDDIR>>/ruby-gsl-1.16.0.6+dfsg1/debian/ruby-gsl/usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.3.0/gsl_native.so (LoadError)
> 	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
> 	from /<<BUILDDIR>>/ruby-gsl-1.16.0.6+dfsg1/debian/ruby-gsl/usr/lib/ruby/vendor_ruby/gsl.rb:6:in `<top (required)>'
> 	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
> 	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
> 	from test_helper.rb:2:in `<main>'
> ERROR: Test "ruby2.3" failed: 

If the failure looks somehow time/timezone related:
Note that this rebuild was performed without the 'tzdata' package
installed in the chroot. tzdata used be (transitively) part of
build-essential, but it no longer is. If this package requires it to
build, it should be added to build-depends. For the release team's
opinion on this, see
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=836940#185

If the failure looks LSB-related:
similarly to tzdata, lsb-base is not installed in the build chroot.

The full build log is available from:
   http://aws-logs.debian.net/2016/10/21/ruby-gsl_1.16.0.6+dfsg1-2_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.