diff --git a/Library/Homebrew/extend/os/linux/formula.rb b/Library/Homebrew/extend/os/linux/formula.rb
index 97d7bf2519b47..3b4351d05749b 100644
--- a/Library/Homebrew/extend/os/linux/formula.rb
+++ b/Library/Homebrew/extend/os/linux/formula.rb
@@ -1,6 +1,12 @@
 # frozen_string_literal: true
 
 class Formula
+  undef shared_library
+
+  def shared_library(name, version = nil)
+    "#{name}.so#{"." unless version.nil?}#{version}"
+  end
+
   class << self
     undef on_linux
 
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index ca7e93514e160..1f3a1ed033ff6 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1407,6 +1407,10 @@ def std_meson_args
     ["--prefix=#{prefix}", "--libdir=#{lib}"]
   end
 
+  def shared_library(name, version = nil)
+    "#{name}.#{version}#{"." unless version.nil?}dylib"
+  end
+
   # an array of all core {Formula} names
   # @private
   def self.core_names
diff --git a/Library/Homebrew/test/os/linux/formula_spec.rb b/Library/Homebrew/test/os/linux/formula_spec.rb
index 159a0838baadc..8e929290723aa 100644
--- a/Library/Homebrew/test/os/linux/formula_spec.rb
+++ b/Library/Homebrew/test/os/linux/formula_spec.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "test/support/fixtures/testball"
 require "formula"
 
 describe Formula do
@@ -101,4 +102,12 @@
       expect(f.resources.first.url).to eq("on_linux")
     end
   end
+
+  describe "#shared_library" do
+    it "generates a shared library string" do
+      f = Testball.new
+      expect(f.shared_library("foobar")).to eq("foobar.so")
+      expect(f.shared_library("foobar", 2)).to eq("foobar.so.2")
+    end
+  end
 end
diff --git a/Library/Homebrew/test/os/mac/formula_spec.rb b/Library/Homebrew/test/os/mac/formula_spec.rb
index 4fb4400c7f747..e76cb05214fe9 100644
--- a/Library/Homebrew/test/os/mac/formula_spec.rb
+++ b/Library/Homebrew/test/os/mac/formula_spec.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "test/support/fixtures/testball"
 require "formula"
 
 describe Formula do
@@ -108,4 +109,12 @@
       expect(f.resources.first.url).to eq("resource_macos")
     end
   end
+
+  describe "#shared_library" do
+    it "generates a shared library string" do
+      f = Testball.new
+      expect(f.shared_library("foobar")).to eq("foobar.dylib")
+      expect(f.shared_library("foobar", 2)).to eq("foobar.2.dylib")
+    end
+  end
 end