libseccomp (new formula)

Formula/libseccomp.rb

@@ -0,0 +1,38 @@
+class Libseccomp < Formula
+  desc "Interface to the Linux Kernel's syscall filtering mechanism"
+  homepage "https://github.com/seccomp/libseccomp"
+  url "https://github.com/seccomp/libseccomp/releases/download/v2.4.2/libseccomp-2.4.2.tar.gz"
+  sha256 "b54f27b53884caacc932e75e6b44304ac83586e2abe7a83eca6daecc5440585b"
+  license "LGPL-2.1-only"
+
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "libtool" => :build
+  depends_on :linux
+
+  def install
+    system "./configure", "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}"
+    system "make", "install"
+  end
+
+  test do
+    ver_major, ver_minor, = version.to_s.split(".")
+
+    (testpath/"test.c").write <<~EOS
+      #include <seccomp.h>
+      int main(int argc, char *argv[])
+      {
+        if(SCMP_VER_MAJOR != #{ver_major})
+          return 1;
+        if(SCMP_VER_MINOR != #{ver_minor})
+          return 1;
+      }
+    EOS
+
+    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lseccomp", "-o", "test"
+    system "./test"
+  end
+end