GASNet 1.26.0 (new formula)

Closes Homebrew/homebrew#46772.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/gasnet.rb

@@ -0,0 +1,49 @@
+class Gasnet < Formula
+  desc "Global-Address Space Networking layer and communication primitives"
+  homepage "http://gasnet.lbl.gov"
+  url "http://gasnet.lbl.gov/GASNet-1.26.0.tar.gz"
+  mirror "https://bitbucket.org/berkeleylab/gasnet/downloads/GASNet-1.26.0.tar.gz"
+  sha256 "32b84c47910c36137db198a9c5396dd0a87c29ad72f2040493aa9e8b2a24f929"
+
+  head do
+    url "https://bitbucket.org/berkeleylab/gasnet.git"
+
+    depends_on "autoconf"   => :build
+    depends_on "automake"   => :build
+    depends_on "libtool"    => :build
+    depends_on "pkg-config" => :build
+  end
+
+  option "without-test", "Skip build time tests (requires properly configured MPI and firewall settings)"
+
+  depends_on :mpi => [:cc, :cxx]
+
+  def install
+    system "./bootstrap" if build.head?
+    system "./configure", "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}"
+    system "make", "all"
+    system "make", "run-tests" if build.with? "test"
+    (pkgshare/"test").install "tests/testhello.c"
+    system "make", "install"
+  end
+
+  test do
+    # GASNet requires us to use makefiles specialized for each "conduit"
+    # On MAC OS X we have an MPI implementation so write a makefile to
+    # test the above program over that conduit
+    (testpath/"makefile").write <<-EOS.undent
+      include #{opt_include}/mpi-conduit/mpi-par.mak
+      test: testhello
+      \t#{bin}/gasnetrun_mpi -n 3 $^
+      .PHONY: test
+      testhello.o: #{pkgshare}/test/testhello.c
+      \t$(GASNET_CC) $(GASNET_CPPFLAGS) $(GASNET_CFLAGS) -c -o $@ $<
+      testhello: testhello.o
+      \t$(GASNET_LD) $(GASNET_LDFLAGS) -o $@ $< $(GASNET_LIBS)
+    EOS
+    system "make", "test"
+  end
+end