Improve formulae

- Rename i-i-o-oscilloscope to the more natural iio-oscilloscope
- Invoke CMake with Homebrew's standard arguments
- Fix identification of build-time vs runtime dependencies
- Update packages to latest versions
- Add SHA-256 checksums to verify file integrity
- Add simple test cases

The formulae now pass `brew audit`.

iio-oscilloscope.rb

@@ -0,0 +1,48 @@
+class IioOscilloscope < Formula
+  desc "GTK+ based oscilloscope application for interfacing with various IIO devices"
+  homepage "https://wiki.analog.com/resources/tools-software/linux-software/iio_oscilloscope"
+  url "https://github.com/analogdevicesinc/iio-oscilloscope/archive/v0.11-master.tar.gz"
+  sha256 "df31ae208f806f8291c3d4fd53d57d2e54acff4ab65c5ae52c18730fc76c6e64"
+  license "GPL-2.0"
+  head "https://github.com/analogdevicesinc/iio-oscilloscope.git"
+
+  depends_on "cmake" => :build
+  depends_on "pkg-config" => :build
+
+  depends_on "atk"
+  depends_on "cairo"
+  depends_on "curl"
+  depends_on "fftw"
+  depends_on "gdk-pixbuf"
+  depends_on "gettext"
+  depends_on "glib"
+  depends_on "gtk+"
+  depends_on "gtkdatabox"
+  depends_on "harfbuzz"
+  depends_on "jansson"
+  depends_on "libad9361-iio"
+  depends_on "libiio"
+  depends_on "libmatio"
+  depends_on "libserialport"
+  depends_on "pango"
+
+  uses_from_macos "libxml2"
+
+  def install
+    # Do not disable peer certificate verification when checking for updates;
+    # this crashes on macOS.
+    inreplace "phone_home.c" do |s|
+      s.gsub! /(CURLOPT_SSL_VERIFYPEER), false/, '\1, true'
+    end
+
+    mkdir "build" do
+      system "cmake", "..", *std_cmake_args
+      system "make", "install"
+    end
+  end
+
+  test do
+    assert_match "osc: the IIO visualization and control tool",
+      shell_output("#{bin}/osc --help", 255)
+  end
+end

libad9361-iio.rb

@@ -1,19 +1,32 @@
 class Libad9361Iio < Formula
-  desc ""
-  homepage ""
+  desc "IIO AD9361 library for filter design and handling, multi-chip sync, etc."
+  homepage "https://analogdevicesinc.github.io/libad9361-iio/"
+  url "https://github.com/analogdevicesinc/libad9361-iio/archive/v0.2.tar.gz"
+  sha256 "f0d935eb7f70fde8596d98e9eb1f311b408b87662fc1fff45ae3ed455697b747"
+  license "LGPL-2.1"
   head "https://github.com/analogdevicesinc/libad9361-iio.git"
 
   depends_on "cmake" => :build
   depends_on "pkg-config" => :build
 
+  depends_on "libiio"
 
   def install
-    # ENV.deparallelize  # if your formula fails when building in parallel
-    system "cmake ./CMakeLists.txt -DCMAKE_INSTALL_PREFIX='#{prefix}'"
-    system "make", "install" # if this fails, try separate make/make install steps
+    mkdir "build" do
+      cmake_args = [
+        "-DOSX_PACKAGE=OFF",
+      ]
+      system "cmake", "..", *cmake_args, *std_cmake_args
+      system "make"
+      system "make", "install"
+    end
+
+    # For some reason they install a framework in lib/
+    frameworks.install_symlink lib/"ad9361.framework"
   end
 
   test do
-    system "false"
+    assert_match "ad9361_fmcomms5_phase_sync",
+      shell_output("nm #{frameworks}/ad9361.framework/ad9361")
   end
 end

libiio.rb

@@ -1,32 +1,31 @@
-
 class Libiio < Formula
-  desc "libIIO"
-  homepage "https://github.com/analogdevicesinc/iio-oscilloscope/wiki"
-#  head "https://github.com/analogdevicesinc/libiio.git"
-  url "https://github.com/analogdevicesinc/libiio/archive/v0.17.tar.gz"
+  desc "Library for interfacing with local and remote Linux IIO devices"
+  homepage "https://analogdevicesinc.github.io/libiio/"
+  url "https://github.com/analogdevicesinc/libiio/archive/v0.21.tar.gz"
+  sha256 "03d13165cbeb83b036743cbd9a10e336c728da162714f39d13250a3d94305cac"
+  license "LGPL-2.1"
+  head "https://github.com/analogdevicesinc/libiio.git"
 
-  # libusb libxml2
   depends_on "cmake" => :build
-#  depends_on "gtk+" => :build
-#  depends_on "glib" => :build
-#  depends_on "libcdk5-dev" => :build
-#  depends_on "bison" => :build
-#  depends_on "flex" => :build
-  depends_on "doxygen" => build
-  depends_on "libxml2" => :build
-  depends_on "libusb" => :build
+
+  depends_on "libserialport"
+  depends_on "libusb"
+
+  uses_from_macos "libxml2"
 
   def install
-    ENV.deparallelize  # if your formula fails when building in parallel
-    system "mkdir build"
-    system "cd build"
-    system "pwd"
-    system "cmake .."
-    system "make"
-    #system "make","DESTDIR=#{prefix}","install-common-files"
+    mkdir "build" do
+      cmake_args = [
+        "-DOSX_INSTALL_FRAMEWORKSDIR=#{frameworks}",
+        "-DOSX_PACKAGE=OFF",
+      ]
+      system "cmake", "..", *cmake_args, *std_cmake_args
+      system "make"
+      system "make", "install"
+    end
   end
 
   test do
-    system "false"
+    system "#{frameworks}/iio.framework/Tools/iio_info", "--help"
   end
 end