1 files changed, 23 insertions, 0 deletions
diff --git a/lib/rubygems/ext/cargo_builder/link_flag_converter.rb b/lib/rubygems/ext/cargo_builder/link_flag_converter.rb
new file mode 100644
index 0000000000..111bb05492
--- /dev/null
+++ b/lib/rubygems/ext/cargo_builder/link_flag_converter.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Gem::Ext::CargoBuilder < Gem::Ext::Builder
+  # Converts Ruby link flags into something cargo understands
+  class LinkFlagConverter
+    def self.convert(arg)
+      case arg.chomp
+      when /^-L\s*(.+)$/
+        ["-L", "native=#{$1}"]
+      when /^--library=(\w+\S+)$/, /^-l\s*(\w+\S+)$/
+        ["-l", $1]
+      when /^-l\s*:lib(\S+).a$/
+        ["-l", "static=#{$1}"]
+      when /^-l\s*:lib(\S+).(so|dylib|dll)$/
+        ["-l", "dylib=#{$1}"]
+      when /^-F\s*(.*)$/
+        ["-l", "framework=#{$1}"]
+      else
+        ["-C", "link_arg=#{arg}"]
+      end
+    end
+  end
+end