Add a new package for IcedTea (#4804)

* alsa-lib: new package

* cups: new package

* icedtea: new package

* icedtea: adding JAVA_HOME variable

* alsa: removing placeholder

* icedtea: typo fix

* alsa: fixing formattting

* icedtea: formatting fixes and cleanup

* icedtea: additional cleanup

* jdk: adding provides('java') to jdk, setting jdk to default java.

* icedtea: adding jdk as a dependency

* java: changing depends_on('jdk') and similar entries to depends_on('java')

* icedtea: removing unused imports, trying to placate flake8.

* fastqc: fixing flake8 error

* bazel: fixing typo in java dependency

* jdk: changing provides java to a range

* icedtea: cleaning up. Splitting up checksums.

* icedtea: jdk dependency is build only

var/spack/repos/builtin/packages/spark/package.py

@@ -39,7 +39,7 @@ class Spark(Package):
     variant('hadoop', default=False,
             description='Build with Hadoop')
 
-    depends_on('jdk', type=('build', 'run'))
+    depends_on('java', type=('build', 'run'))
     depends_on('hadoop', when='+hadoop', type=('build', 'run'))
 
     version('2.1.0', '21d4471e78250775b1fa7c0e6c3a1326')
@@ -68,7 +68,7 @@ def install_dir(dirname):
     @when('+hadoop')
     def setup_environment(self, spack_env, run_env):
 
-        env['JAVA_HOME'] = self.spec['jdk'].prefix
+        env['JAVA_HOME'] = self.spec['java'].prefix
         # spack_env.set('JAVA_HOME', self.spec['jdk'].prefix)
 
         hadoop = self.spec['hadoop'].command