Merge pull request #912 from citibeth/efischer/160506-NCO

nco: Added new package

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

+from spack import *
+
+class Antlr(Package):
+    
+    homepage = "http://www.antlr.org"
+    url      = "https://github.com/antlr/antlr/tarball/v2.7.7"
+
+    # NOTE: This requires that a system Java be available.
+    # Spack does not yet know how to install Java compilers
+
+    # Notes from http://nco.sourceforge.net/#bld
+    # The first steps to build (i.e., compile, for the most part) NCO from
+    # source code are to install the pre-requisites: ANTLR version 2.7.7
+    # (like this one not version 3.x or 4.x!) (required for ncap2)... ANTLR
+    # binaries from major distributions are pre-built with the source patch
+    # necessary to allow NCO to link to ANTLR... The ANTLR source file
+    # CharScanner.hpp must include this line: #include <cstring> or else
+    # ncap2 will not compile (this tarball is already patched).
+    version('2.7.7', '914865e853fe8e1e61a9f23d045cb4ab',
+        # Patched version as described above
+        url='http://dust.ess.uci.edu/tmp/antlr-2.7.7.tar.gz')
+        # Unpatched version
+        # url='http://dust.ess.uci.edu/nco/antlr-2.7.7.tar.gz')
+
+    variant('cxx', default=False, description='Enable ANTLR for C++')
+    variant('java', default=False, description='Enable ANTLR for Java')
+    variant('python', default=False, description='Enable ANTLR for Python')
+    variant('csharp', default=False, description='Enable ANTLR for Csharp')
+
+
+    def install(self, spec, prefix):
+        # Check for future enabling of variants
+        for v in ('+java', '+python', '+csharp'):
+            if v in spec:
+                raise Error('Illegal variant %s; for now, Spack only knows how to build antlr or antlr+cxx')
+
+        config_args = [
+            '--prefix=%s' % prefix,
+            '--%s-cxx' % ('enable' if '+cxx' in spec else 'disable'),
+            '--%s-java' % ('enable' if '+java' in spec else 'disable'),
+            '--%s-python' % ('enable' if '+python' in spec else 'disable'),
+            '--%s-csharp' % ('enable' if '+csharp' in spec else 'disable')]
+
+        # which('autoreconf')('-iv')
+        configure(*config_args)
+        make()
+        make("install")

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

+from spack import *
+import os
+
+class Nco(Package):
+    """The NCO toolkit manipulates and analyzes data stored in
+    netCDF-accessible formats"""
+
+    homepage = "https://sourceforge.net/projects/nco"
+    url      = "https://github.com/nco/nco/archive/4.5.5.tar.gz"
+
+    version('4.5.5', '9f1f1cb149ad6407c5a03c20122223ce')
+
+    # See "Compilation Requirements" at:
+    # http://nco.sourceforge.net/#bld
+
+    depends_on('netcdf')
+    depends_on('antlr@2.7.7+cxx')    # (required for ncap2)
+    depends_on('gsl')            #  (desirable for ncap2)
+    depends_on('udunits2')       # (allows dimensional unit transformations)
+    # depends_on('opendap')      # (enables network transparency), 
+
+    def install(self, spec, prefix):
+        opts = [
+            '--prefix=%s' % prefix,
+            '--disable-openmp',    # TODO: Make this a variant
+            '--disable-dap',        # TODO: Make this a variant
+            '--disable-esmf']
+        configure(*opts)
+        make()
+        make("install")