scs 2.1.1 (new formula)

Closes #42737.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/scs.rb

@@ -0,0 +1,35 @@
+class Scs < Formula
+  desc "Conic optimization via operator splitting"
+  homepage "https://web.stanford.edu/~boyd/papers/scs.html"
+  url "https://github.com/cvxgrp/scs/archive/2.1.1.tar.gz"
+  sha256 "0e20b91e8caf744b84aa985ba4e98cc7235ee33612b2bad2bf31ea5ad4e07d93"
+
+  def install
+    system "make", "install", "PREFIX=#{prefix}"
+    pkgshare.install "test/data/small_random_socp"
+  end
+
+  test do
+    (testpath/"test.c").write <<~EOS
+      #include <rw.h>
+      #include <scs.h>
+      #include <util.h>
+      int main() {
+        ScsData *data; ScsCone *cone;
+        const int status = scs_read_data("#{pkgshare}/small_random_socp",
+                                         &data, &cone);
+        ScsSolution *solution = scs_calloc(1, sizeof(ScsSolution));
+        ScsInfo info;
+        const int result = scs(data, cone, solution, &info);
+        scs_free_data(data, cone); scs_free_sol(solution);
+        return result - SCS_SOLVED;
+      }
+    EOS
+    system ENV.cc, "test.c", "-I#{include}/scs", "-L#{lib}", "-lscsindir",
+                   "-o", "testscsindir"
+    system "./testscsindir"
+    system ENV.cc, "test.c", "-I#{include}/scs", "-L#{lib}", "-lscsdir",
+                   "-o", "testscsdir"
+    system "./testscsdir"
+  end
+end