system/ruby: pull in for asciidoctor

1 files changed, 31 insertions, 0 deletions

diff --git a/system/ruby/rubygems-avoid-platform-specific-gems.patch b/system/ruby/rubygems-avoid-platform-specific-gems.patch
new file mode 100644
index 000000000..74a536558
--- /dev/null
+++ b/system/ruby/rubygems-avoid-platform-specific-gems.patch
@@ -0,0 +1,31 @@
+From: Jakub Jirutka <jakub@jirutka.cz>
+Date: Fri, 19 May 2017 19:56:00 +0200
+Subject: [PATCH] Rubygems: don't install platform-specific gems
+
+Gems with native extensions typically contain just source code that is
+built during installation on user's system. However, Rubygems allows to
+publish even platform-specific gems with prebuilt binaries for specific
+platform. The problem is that Rubygems uses only short platform
+identification like x86_64-linux; it does not identify used libc.
+And sadly platform-specific gems for linux are built against glibc, so
+they may not work on musl libc.
+
+This patch is a workaround for the aforesaid problem. It removes local
+platform from Rubygems' supported platforms to force it always pick
+a platform-agnostic (source) gem. Users can override it using
+`--platform` option.
+
+--- a/lib/rubygems.rb
++++ b/lib/rubygems.rb
+@@ -743,7 +743,10 @@
+   def self.platforms
+     @platforms ||= []
+     if @platforms.empty?
+-      @platforms = [Gem::Platform::RUBY, Gem::Platform.local]
++      # XXX: Patched to avoid installing platform-specific gems with binaries
++      # linked against glibc.
++      @platforms = [Gem::Platform::RUBY]
++      #@platforms = [Gem::Platform::RUBY, Gem::Platform.local]
+     end
+     @platforms
+   end