Publish a new release to rubygems #67

ruipserra · 2022-03-01T17:48:20Z

#66 was merged a few months ago adding Ruby 3 compatibility, but it's not available in rubygems.
Can you publish a new release? Thanks!

obromios · 2022-03-03T06:31:26Z

In the meantime, you can get commit with the #66 merge by inserting into your Gemfile
gem 'gsl', git: 'git@github.com:SciRuby/rb-gsl.git', ref: '103a3e1'

Note that the gem name to use is gsl not rb-gsl. Can anyone tell me why on rubygems.org there are two gems gsl and rb-gsl but both point to the source code at git@github.com:SciRuby/rb-gsl.git'?

I tried the updated code with ruby 3.1.1 and it appears to work on this ruby version as well.

xanadiu · 2022-03-31T15:33:58Z

I am wondering how to "push" a new rubygems version. For anybody struggling with the lack of GitHub credentials, including the https url in my Gemfile worked for me:

gem 'gsl', git: 'https://github.com/SciRuby/rb-gsl.git', ref: '103a3e1'

**Background:** The slow step of LSI is the SVD (singular value decomposition) of a matrix. With even a relatively small collection of documents (say, about 20 blog posts), the native ruby implementation it too slow to be usable. To work around this problem, classifier-reborn allows you to optionally use the `gsl` gem to make use of the [Gnu Scientific Library](https://www.gnu.org/software/gsl/) when performing matrix calculations. This performs at least an order of magnitude faster than the ruby-only matrix decomposition, and is fast enough that using LSI with Jekyll finishes in a reasonable amount of time. Unfortunately, [rb-gsl](https://github.com/SciRuby/rb-gsl) is unmaintained -- luckily, there's a commit on main that makes it compatible with Ruby 3, but nobody has released the gem so the only way to use rb-gsl with Ruby 3 right now is to specify the git hash in your Gemfile. See SciRuby/rb-gsl#67 **Changes:** In this PR, my goal is to provide an alternative matrix implementation that can perform the singular value decomposition quickly and works with Ruby 3. Doing so will allow classifier-reborn to be used with Ruby 3 without depending on the unmaintained/unreleased GSL gem. Options for ruby matrix libraries are somewhat limited, but [Numo](https://github.com/ruby-numo) seems to be more actively maintained than rb-gsl, and Numo has a working Ruby 3 implementation that can perform a singular value decomposition. This requires [numo-narray](https://github.com/ruby-numo/numo-narray) and [numo-linalg](https://github.com/ruby-numo/numo-linalg). My goal is to allow users to (optionally) use classifier-reborn the same way they would use it with GSL. That is, the user should install `numo-narray` and `numo-linalg` gems, and classifier-reborn will detect and use these if they are found.

**Background:** The slow step of LSI is the SVD (singular value decomposition) of a matrix. With even a relatively small collection of documents (say, about 20 blog posts), the native ruby implementation it too slow to be usable. To work around this problem, classifier-reborn allows you to optionally use the `gsl` gem to make use of the [Gnu Scientific Library](https://www.gnu.org/software/gsl/) when performing matrix calculations. This performs at least an order of magnitude faster than the ruby-only matrix decomposition, and is fast enough that using LSI with Jekyll finishes in a reasonable amount of time. Unfortunately, [rb-gsl](https://github.com/SciRuby/rb-gsl) is unmaintained -- luckily, there's a commit on main that makes it compatible with Ruby 3, but nobody has released the gem so the only way to use rb-gsl with Ruby 3 right now is to specify the git hash in your Gemfile. See SciRuby/rb-gsl#67 Notably, `rb-gsl` depends on [narray](https://github.com/masa16/narray#new-version-is-under-development---rubynumonarray). `narray` is deprecated, and the readme suggests using `Numo::NArray` instead. **Changes:** In this PR, my goal is to provide an alternative matrix implementation that can perform the singular value decomposition quickly and works with Ruby 3. Doing so will allow classifier-reborn to be used with Ruby 3 without depending on the unmaintained/unreleased GSL gem. Options for ruby matrix libraries are somewhat limited, but [Numo](https://github.com/ruby-numo) seems to be more actively maintained than rb-gsl, and Numo has a working Ruby 3 implementation that can perform a singular value decomposition. This requires [numo-narray](https://github.com/ruby-numo/numo-narray) and [numo-linalg](https://github.com/ruby-numo/numo-linalg). My goal is to allow users to (optionally) use classifier-reborn the same way they would use it with GSL. That is, the user should install `numo-narray` and `numo-linalg` gems, and classifier-reborn will detect and use these if they are found.

**Background:** The slow step of LSI is computing the SVD (singular value decomposition) of a matrix. Even with a relatively small collection of documents (say, about 20 blog posts), the native ruby implementation is too slow to be usable (taking hours to complete). To work around this problem, classifier-reborn allows you to optionally use the `gsl` gem to make use of the [Gnu Scientific Library](https://www.gnu.org/software/gsl/) when performing matrix calculations. Computations with this gem perform orders of magnitude faster than the ruby-only matrix implementation, and they're fast enough that using LSI with Jekyll finishes in a reasonable amount of time (seconds). Unfortunately, [rb-gsl](https://github.com/SciRuby/rb-gsl) is unmaintained -- luckily, there's a commit on main that makes it compatible with Ruby 3, but nobody has released the gem so the only way to use rb-gsl with Ruby 3 right now is to specify the git hash in your Gemfile. See SciRuby/rb-gsl#67 Notably, `rb-gsl` depends on [narray](https://github.com/masa16/narray#new-version-is-under-development---rubynumonarray). `narray` is deprecated, and the readme suggests using `Numo::NArray` instead. **Changes:** In this PR, my goal is to provide an alternative matrix implementation that can perform singular value decomposition quickly and works with Ruby 3. Doing so will allow classifier-reborn to be used with Ruby 3 without depending on the unmaintained/unreleased GSL gem. Options for ruby matrix libraries are somewhat limited, but [Numo](https://github.com/ruby-numo) seems to be more actively maintained than rb-gsl, and Numo has a working Ruby 3 implementation that can perform a singular value decomposition. This requires [numo-narray](https://github.com/ruby-numo/numo-narray) and [numo-linalg](https://github.com/ruby-numo/numo-linalg). My goal is to allow users to (optionally) use classifier-reborn with Numo/Lapack the same way they'd use it with GSL. That is, the user should install the `numo-narray` and `numo-linalg` gems (with their required C libraries), and classifier-reborn will detect and use these if they are found.

**Background:** The slow step of LSI is computing the SVD (singular value decomposition) of a matrix. Even with a relatively small collection of documents (say, about 20 blog posts), the native ruby implementation is too slow to be usable (taking hours to complete). To work around this problem, classifier-reborn allows you to optionally use the `gsl` gem to make use of the [Gnu Scientific Library](https://www.gnu.org/software/gsl/) when performing matrix calculations. Computations with this gem perform orders of magnitude faster than the ruby-only matrix implementation, and they're fast enough that using LSI with Jekyll finishes in a reasonable amount of time (seconds). Unfortunately, [rb-gsl](https://github.com/SciRuby/rb-gsl) is unmaintained -- there's a commit on main that makes it compatible with Ruby 3, but nobody has released the gem so the only way to use rb-gsl with Ruby 3 right now is to specify the git hash in your Gemfile. See SciRuby/rb-gsl#67. This will be increasingly problematic because Ruby 2.7 is now in [security maintenance](https://www.ruby-lang.org/en/news/2022/04/12/ruby-2-7-6-released/) and will become end of life in less than a year. Notably, `rb-gsl` depends on the [narray](https://github.com/masa16/narray#new-version-is-under-development---rubynumonarray) gem. `narray` is deprecated, and the readme suggests using `Numo::NArray` instead. **Changes:** In this PR, my goal is to provide an alternative matrix implementation that can perform singular value decomposition quickly and works with Ruby 3. Doing so will make classifier-reborn compatible with Ruby 3 without depending on the unmaintained/unreleased gsl gem. There aren't many gems that provide fast matrix support for ruby, but [Numo](https://github.com/ruby-numo) seems to be more actively maintained than rb-gsl, and Numo has a working Ruby 3 implementation that can perform a singular value decomposition, which is exactly what we need. This requires [numo-narray](https://github.com/ruby-numo/numo-narray) and [numo-linalg](https://github.com/ruby-numo/numo-linalg). My goal is to allow users to (optionally) use classifier-reborn with Numo/Lapack the same way they'd use it with GSL. That is, the user should install the `numo-narray` and `numo-linalg` gems (with their required C libraries), and classifier-reborn will detect and use these if they are found.

simon-dedeo · 2023-12-22T18:45:52Z

For those who are still not using bundler, gemfiles, etc, here's how to install this version globally:

git clone git@github.com:SciRuby/rb-gsl.git
cd rb-gsl
git checkout 103a3e1
gem build *.gemspec
sudo gem install ./gsl-2.1.0.3.gem

This pulls the git repository, goes to katafract's fixed version (thank you!), builds the gem locally, and then installs. This works on Mac OS X 14.2 (Sonoma).

dgdosen · 2024-04-30T20:08:50Z

This approach was working for me running on macos Sonoma - but some update (Xcode? gcc? bundler?) has caused this this gem to stop working, and I can't reinstall it:

blas2.c:1084:3: error: incompatible function pointer types passing 'VALUE (VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned
long)') to parameter of type 'VALUE (*)(VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (*)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)') [-Wincompatible-function-pointer-types]
  rb_define_module_function(module, "dsyr2!", rb_gsl_blas_dsyr2, 4);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:338:142: note: expanded from macro 'rb_define_module_function'
#define rb_define_module_function(mod, mid, func, arity)    RBIMPL_ANYARGS_DISPATCH_rb_define_module_function((arity), (func))((mod), (mid), (func), (arity))
                                                                                                                                             ^~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:274:1: note: passing argument to parameter here
RBIMPL_ANYARGS_DECL(rb_define_module_function, VALUE, const char *)
^
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:259:72: note: expanded from macro 'RBIMPL_ANYARGS_DECL'
RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _04(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE), int); \
                                                                       ^
blas2.c:1085:3: error: incompatible function pointer types passing 'VALUE (VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned
long)') to parameter of type 'VALUE (*)(VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (*)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)') [-Wincompatible-function-pointer-types]
  rb_define_module_function(module, "dsyr2", rb_gsl_blas_dsyr2_a, 4);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:338:142: note: expanded from macro 'rb_define_module_function'
#define rb_define_module_function(mod, mid, func, arity)    RBIMPL_ANYARGS_DISPATCH_rb_define_module_function((arity), (func))((mod), (mid), (func), (arity))
                                                                                                                                             ^~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:274:1: note: passing argument to parameter here
RBIMPL_ANYARGS_DECL(rb_define_module_function, VALUE, const char *)
^
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:259:72: note: expanded from macro 'RBIMPL_ANYARGS_DECL'
RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _04(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE), int); \
                                                                       ^
blas2.c:1086:3: error: incompatible function pointer types passing 'VALUE (VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned
long)') to parameter of type 'VALUE (*)(VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (*)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)') [-Wincompatible-function-pointer-types]
  rb_define_module_function(module, "zher2!", rb_gsl_blas_zher2, 4);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:338:142: note: expanded from macro 'rb_define_module_function'
#define rb_define_module_function(mod, mid, func, arity)    RBIMPL_ANYARGS_DISPATCH_rb_define_module_function((arity), (func))((mod), (mid), (func), (arity))
                                                                                                                                             ^~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:274:1: note: passing argument to parameter here
RBIMPL_ANYARGS_DECL(rb_define_module_function, VALUE, const char *)
^
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:259:72: note: expanded from macro 'RBIMPL_ANYARGS_DECL'
RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _04(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE), int); \
                                                                       ^
blas2.c:1087:3: error: incompatible function pointer types passing 'VALUE (VALUE, VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned
long)') to parameter of type 'VALUE (*)(VALUE, VALUE, VALUE, VALUE, VALUE)' (aka 'unsigned long (*)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)') [-Wincompatible-function-pointer-types]
  rb_define_module_function(module, "zher2", rb_gsl_blas_zher2_a, 4);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:338:142: note: expanded from macro 'rb_define_module_function'
#define rb_define_module_function(mod, mid, func, arity)    RBIMPL_ANYARGS_DISPATCH_rb_define_module_function((arity), (func))((mod), (mid), (func), (arity))
                                                                                                                                             ^~~~~~
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:274:1: note: passing argument to parameter here
RBIMPL_ANYARGS_DECL(rb_define_module_function, VALUE, const char *)
^
/opt/homebrew/var/rbenv/versions/3.2.2/include/ruby-3.2.0/ruby/internal/anyargs.h:259:72: note: expanded from macro 'RBIMPL_ANYARGS_DECL'
RBIMPL_ANYARGS_ATTRSET(sym) static void sym ## _04(__VA_ARGS__, VALUE(*)(VALUE, VALUE, VALUE, VALUE, VALUE), int); \
                                                                       ^
2 warnings and 4 errors generated.
make: *** [blas2.o] Error 1

make failed, exit code 2

Gem files will remain installed in /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/bundler/gems/rb-gsl-103a3e1941e2 for inspection.
Results logged to /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/bundler/gems/extensions/arm64-darwin-23/3.2.0/rb-gsl-103a3e1941e2/gem_make.out

  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:119:in `run'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:51:in `block in make'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:43:in `each'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:43:in `make'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/ext_conf_builder.rb:41:in `build'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:187:in `build_extension'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:221:in `block in build_extensions'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:218:in `each'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/ext/builder.rb:218:in `build_extensions'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/3.2.0/rubygems/installer.rb:843:in `build_extensions'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/rubygems_gem_installer.rb:72:in `build_extensions'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/source/path/installer.rb:28:in `post_install'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/source/path.rb:244:in `generate_bin'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/source/git.rb:202:in `install'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/installer/gem_installer.rb:54:in `install'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/installer/gem_installer.rb:16:in `install_from_spec'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/installer/parallel_installer.rb:156:in `do_install'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/installer/parallel_installer.rb:147:in `block in worker_pool'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/worker.rb:62:in `apply_func'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/worker.rb:57:in `block in process_queue'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/worker.rb:54:in `loop'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/worker.rb:54:in `process_queue'
  /opt/homebrew/var/rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bundler-2.4.16/lib/bundler/worker.rb:90:in `block (2 levels) in create_threads'

An error occurred while installing gsl (2.1.0.3), and Bundler cannot continue.

In Gemfile:
  gsl

Anybody else have a similar issue?

0xdevalias · 2024-06-20T03:59:18Z

This approach was working for me running on macos Sonoma - but some update (Xcode? gcc? bundler?) has caused this this gem to stop working, and I can't reinstall it

I'm also running onto this issue on macOS Sonoma 14.4.1 (23E224); but in my case, I was just trying to use the existing published version of gsl 2.1.0.3 on a ruby 2.7.1 install.

Initially I had just done a brew install gsl, which gave me version 2.8; but looking closer at the notes in my Gemfile it said to try brew install gsl@2.1:

# ..snip..

# LSI (related posts)
# Note: You need to install one of nmatrix or narray first, and export NMATRIX=1 or NARRAY=1 before running bundle install
# otherwise gsl won't use them. Note that you can only use one or the other, not both.
#   see https://github.com/SciRuby/rb-gsl#nmatrix-and-narray-usage
#
# Both of these seem to be extremely outdated, see:
#   https://github.com/0xdevalias/devalias.net/issues/83
#   https://github.com/jekyll/classifier-reborn/issues/192
#   https://github.com/SciRuby/rb-gsl/issues/63
gem 'nmatrix'
gem 'gsl' # Note: you need to install a compatible version (eg. 2.1) of gsl first: brew install gsl@2.1
gem 'classifier-reborn'

# ..snip..

Which unfortunately no longer works:

⇒ brew install gsl@2.1
Warning: No available formula with the name "gsl@2.1".
==> Searching for similarly named formulae and casks...
Error: No formulae or casks found for gsl@2.1.

Digging a little deeper, I found these issues:

Build fails: rb_gsl_common.h: error: unknown type name 'EXTERN' #69
Build failure with Clang 16 (-Wincompatible-function-pointer-types) #68
- https://bugs.gentoo.org/895684
  - https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=568b8a8843c91c5b82b92e7c6dd15352c1bf3412
- This one seems particularly relevant to the errors we're seeing; but the resolution on the upstream gentoo 'fix' seemed to just be removing it entirely.

It seems it's only compatible with gsl 2.1 as well:

https://github.com/SciRuby/rb-gsl#description
- Ruby/GSL is compatible with GSL versions upto 2.1.
- https://github.com/SciRuby/rb-gsl#usage-with-gsl-21

I wonder, does using gsl version 2.1 work for you?

There are some instructions for building gsl on macOS without homebrew here:

https://gist.github.com/TysonRayJones/af7bedcdb8dc59868c7966232b4da903#osx
- though installing it manually is just as simple, which we now describe.
  
  Download gsl-latest.tar.gz from the GSL ftp site and unzip it anywhere (e.g. /Downloads)
  Open the unzipped gsl folder in Terminal (e.g. cd ~/Downloads/gsl-2.4
  Run sudo ./configure && make && make install
  
  If the above gives a "permission denied" error, instead try
```
sudo make clean
sudo chown -R $USER .
./configure && make
make install
```

We can see the latest version of the homebrew formula here:

https://github.com/Homebrew/homebrew-core/blob/master/Formula/g/gsl.rb

And it's history here:

Though the first 2.x version listed there seems to be 2.2, so I guess we can't just copy the old brew build version:

Homebrew/homebrew-core@bf262cd

Since the only thing that changed from the 1.x build was the source download link though.. maybe we could do it fairly easily.. with something like this:

class GslAT21 < Formula
  desc "Numerical library for C and C++"
  homepage "https://www.gnu.org/software/gsl/"
  url "https://ftp.gnu.org/gnu/gsl/gsl-2.1.tar.gz"
  mirror "https://ftpmirror.gnu.org/gsl/gsl-2.1.tar.gz"
  sha256 "59ad06837397617f698975c494fe7b2b698739a59e2fcf830b776428938a0c66"
  license "GPL-3.0-or-later"

  def install
    ENV.deparallelize
    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
    system "make" # A GNU tool which doesn't support just make install! Shameful!
    system "make", "install"
  end

  test do
    system bin/"gsl-randist", "0", "20", "cauchy", "30"
  end
end

Saved in:

/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/g/gsl@2.1.rb

Then we could install it like this:

⇒ HOMEBREW_NO_INSTALL_FROM_API=1 brew info gsl@2.1
==> gsl@2.1: stable 2.1
Numerical library for C and C++
https://www.gnu.org/software/gsl/
Not installed
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/g/gsl@2.1.rb
License: GPL-3.0-or-later

⇒ HOMEBREW_NO_INSTALL_FROM_API=1 brew install gsl@2.1
==> Fetching gsl@2.1
==> Downloading https://ftp.gnu.org/gnu/gsl/gsl-2.1.tar.gz
############################################################################################################################################ 100.0%
==> ./configure
==> make
==> make install
🍺  /usr/local/Cellar/gsl@2.1/2.1: 257 files, 8.1MB, built in 4 minutes 48 seconds
==> Running `brew cleanup gsl@2.1`...
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).

⇒ gsl-config --version
2.1

After which we could go back and see if rb-gsl can install now... but alas it cannot, and still gets the same errors from before.

Exploring this issue more:

Build failure with Clang 16 (-Wincompatible-function-pointer-types) #68 (comment)

⇒ clang --version
Apple clang version 15.0.0 (clang-1500.3.9.4)
Target: x86_64-apple-darwin23.4.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
In the clang 15 docs it doesn't say it can be disabled:

https://releases.llvm.org/15.0.0/tools/clang/docs/

https://releases.llvm.org/15.0.0/tools/clang/docs/DiagnosticsReference.html

-Wincompatible-function-pointer-types
This diagnostic is enabled by default.

But in clang 16 it does:

https://releases.llvm.org/16.0.0/tools/clang/docs/DiagnosticsReference.html#wincompatible-function-pointer-types

-Wincompatible-function-pointer-types
This diagnostic is an error by default, but the flag -Wno-incompatible-function-pointer-types can be used to disable the error.

ChatGPT claims I should be able to pass that through like this:
CFLAGS="-Wno-incompatible-function-pointer-types" gem install gsl -v '2.1.0.3' --source 'https://rubygems.org/'
But when I tried I still got the same errors.

Not sure if that is because I'm passing it through wrong, the 'opt out' flag doesn't exist on clang 15, or if it just won't work as a solution at all.

Originally posted by @0xdevalias in #68 (comment)

BenTalagan · 2024-09-17T11:46:23Z

After which we could go back and see if rb-gsl can install now... but alas it cannot, and still gets the same errors from before.

@0xdevalias thank you, your technique worked for me on MacOS Ventura.

I had to remove the currently upgraded gsl version by homebrew :

brew uninstall gsl

After creating the local recipe as you did (in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/g/gsl@2.1.rb), I've installed it with the following flags :

HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source gsl@2.1

Then relinked gsl :

HOMEBREW_NO_INSTALL_FROM_API=1 brew link gsl@2.1

Then, from my project environment (which uses rvm to activate ruby 2.7.1), I uninstalled the precedent gem version :

gem uninstall gsl

And reinstalled it with bundler from within the project dir :

bundle

The gem then accepted to build, using the local gsl@2.1 library version installed with homebrew.

0xdevalias · 2024-09-24T23:59:22Z

thank you, your technique worked for me on MacOS Ventura

@BenTalagan Awesome! Glad it was helpful!

Then relinked gsl :

HOMEBREW_NO_INSTALL_FROM_API=1 brew link gsl@2.1

@BenTalagan Oh true.. I wonder if that was the reason why it didn't work for me:

After which we could go back and see if rb-gsl can install now... but alas it cannot, and still gets the same errors from before.

I can't remember exactly what I did, but skimming my notes above, it looks like I didn't link gsl@2.1, nor does it look like I changed any ENV vars to make the gem installation point to that version; so maybe that would have made it work.

mkasberg mentioned this issue May 4, 2022

Can classifier-reborn work with Numo::NArray / Numo::GSL ? Is that a better choice than nmatrix? jekyll/classifier-reborn#192

Closed

mkasberg mentioned this issue Jun 2, 2022

Support Numo Gem for performing SVD jekyll/classifier-reborn#198

Merged

This was referenced Jan 30, 2023

seems to require re-writing in places #65

Open

Is this project still maintained? #63

Open

Remove gsl/nmatrix dependencies from Gemfile and build workflow 0xdevalias/devalias.net#87

Open

This was referenced Jun 20, 2024

Gem::Ext::BuildError: ERROR: Failed to build gem native extension: gsl 0xdevalias/devalias.net#20

Closed

Build fails: rb_gsl_common.h: error: unknown type name 'EXTERN' #69

Open

0xdevalias mentioned this issue Jun 20, 2024

Dockerize Jekyll + automate site builds 0xdevalias/devalias.net#27

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Publish a new release to rubygems #67

Publish a new release to rubygems #67

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Publish a new release to rubygems #67

Publish a new release to rubygems #67

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