r 3.4.0 (import from homebrew/science)

Closes #14416.

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

Formula/r.rb

@@ -0,0 +1,86 @@
+class R < Formula
+  desc "Software environment for statistical computing"
+  homepage "https://www.r-project.org/"
+  url "https://cran.rstudio.com/src/base/R-3/R-3.4.1.tar.gz"
+  sha256 "02b1135d15ea969a3582caeb95594a05e830a6debcdb5b85ed2d5836a6a3fc78"
+
+  bottle do
+    sha256 "d0254993416c177d7fa49b9cde95eb8bd262e3a801408b21951cc0f7755e0a0e" => :sierra
+    sha256 "2098376a2d552573a1b0e2ff29c076b05a0161ec276260b5b76a80e87d5cd6c1" => :el_capitan
+    sha256 "be31e78c3df77a46e91500b4809cb7f89bceacabc0c38d1bc3e56beab31bff6e" => :yosemite
+  end
+
+  depends_on "pkg-config" => :build
+  depends_on "gettext"
+  depends_on "jpeg"
+  depends_on "libpng"
+  depends_on "pcre"
+  depends_on "readline"
+  depends_on "xz"
+  depends_on :fortran
+  depends_on "homebrew/science/openblas" => :optional
+
+  def install
+    # Fix dyld: lazy symbol binding failed: Symbol not found: _clock_gettime
+    if MacOS.version == "10.11" && MacOS::Xcode.installed? &&
+       MacOS::Xcode.version >= "8.0"
+      ENV["ac_cv_have_decl_clock_gettime"] = "no"
+    end
+
+    args = [
+      "--prefix=#{prefix}",
+      "--enable-memory-profiling",
+      "--without-cairo",
+      "--without-x",
+      "--with-aqua",
+      "--with-lapack",
+      "SED=/usr/bin/sed", # don't remember Homebrew's sed shim
+    ]
+
+    if build.with? "openblas"
+      args << "--with-blas=-L#{Formula["openblas"].opt_lib} -lopenblas"
+      ENV.append "LDFLAGS", "-L#{Formula["openblas"].opt_lib}"
+    else
+      args << "--with-blas=-framework Accelerate"
+      ENV.append_to_cflags "-D__ACCELERATE__" if ENV.compiler != :clang
+    end
+
+    # Help CRAN packages find gettext and readline
+    ["gettext", "readline"].each do |f|
+      ENV.append "CPPFLAGS", "-I#{Formula[f].opt_include}"
+      ENV.append "LDFLAGS", "-L#{Formula[f].opt_lib}"
+    end
+
+    system "./configure", *args
+    system "make"
+    ENV.deparallelize do
+      system "make", "install"
+    end
+
+    cd "src/nmath/standalone" do
+      system "make"
+      ENV.deparallelize do
+        system "make", "install"
+      end
+    end
+
+    # make Homebrew packages discoverable for R CMD INSTALL
+    inreplace lib/"R/etc/Makeconf" do |s|
+      s.gsub!(/^CPPFLAGS =.*/, "\\0 -I#{HOMEBREW_PREFIX}/include")
+      s.gsub!(/^LDFLAGS =.*/, "\\0 -L#{HOMEBREW_PREFIX}/lib")
+      s.gsub!(/.LDFLAGS =.*/, "\\0 $(LDFLAGS)")
+    end
+  end
+
+  def post_install
+    short_version =
+      `#{bin}/Rscript -e 'cat(as.character(getRversion()[1,1:2]))'`.strip
+    site_library = HOMEBREW_PREFIX/"lib/R/#{short_version}/site-library"
+    site_library.mkpath
+    ln_s site_library, lib/"R/site-library"
+  end
+
+  test do
+    assert_equal "[1] 2", shell_output("#{bin}/Rscript -e 'print(1+1)'").chomp
+  end
+end