add support for libinotify (add file contents)

Formula/libinotify-kqueue.rb

@@ -0,0 +1,44 @@
+class LibinotifyKqueue < Formula
+    desc "BSD port of Linux's inotify"
+    homepage "https://github.com/libinotify-kqueue/libinotify-kqueue"
+    url "https://github.com/libinotify-kqueue/libinotify-kqueue.git",
+      tag:      "20211018",
+      revision: "ea7835fcafc3cee2a0d6c0e3c8034962c48f6afe"
+    license "MIT"
+    head "https://github.com/libinotify-kqueue/libinotify-kqueue.git",
+      branch: "master"
+
+    depends_on "autoconf" => :build
+    depends_on "automake" => :build
+    depends_on "gcc" => :build
+    depends_on "libtool" => :build
+
+    def install
+      # Autoconf
+      system "autoreconf", "-fiv"
+      # Configure
+      system "./configure"
+      # Build
+      system "make"
+      # Copy
+      system "make", "install", "DESTDIR=#{buildpath}"
+      # Move
+      lib.install Dir["#{buildpath}/usr/local/lib/*"]
+      include.install Dir["#{buildpath}/usr/local/include/*"]
+      man.install Dir["#{buildpath}/usr/local/share/man/*"]
+    end
+
+    test do
+      # Check if the library is installed
+      (testpath/"test.cpp").write <<~EOS
+        #include <sys/inotify.h>
+        int main() {
+          inotify_init();
+          return 0;
+        }
+      EOS
+      system ENV.cc, "test.cpp", "-L#{lib}", "-linotify", "-o", "test"
+      system "./test"
+    end
+  end
+