From 01f7e768f6638add78e213f0430d091c471cb230 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@gmail.com>
Date: Wed, 23 Dec 2015 22:49:42 -0500
Subject: Enable several variants for HDF5

+cxx, +fortran: Enable support for the respective languages
+threadsafe: Enable multi-threading
---
 var/spack/packages/hdf5/package.py | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

(limited to 'var')

diff --git a/var/spack/packages/hdf5/package.py b/var/spack/packages/hdf5/package.py
index adac79d9bb..fdc77c121a 100644
--- a/var/spack/packages/hdf5/package.py
+++ b/var/spack/packages/hdf5/package.py
@@ -10,12 +10,15 @@ class Hdf5(Package):
     url      = "http://www.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8.13/src/hdf5-1.8.13.tar.gz"
     list_url = "http://www.hdfgroup.org/ftp/HDF5/releases"
     list_depth = 3
-    
+
     version('1.8.16', 'b8ed9a36ae142317f88b0c7ef4b9c618')
     version('1.8.15', '03cccb5b33dbe975fdcd8ae9dc021f24')
     version('1.8.13', 'c03426e9e77d7766944654280b467289')
 
+    variant('cxx', default=False, description='Enable C++ support')
+    variant('fortran', default=False, description='Enable Fortran support')
     variant('mpi', default=False, description='Enable MPI support')
+    variant('threadsafe', default=False, description='Enable multithreading')
 
     depends_on("mpi", when='+mpi')
     depends_on("zlib")
@@ -23,11 +26,36 @@ class Hdf5(Package):
     # TODO: currently hard-coded to use OpenMPI
     def install(self, spec, prefix):
         extra_args = []
+        if '+cxx' in spec:
+            extra_args.extend([
+                '--enable-cxx'
+            ])
+        if '+fortran' in spec:
+            extra_args.extend([
+                '--enable-fortran',
+                '--enable-fortran2003'
+            ])
         if '+mpi' in spec:
+            # The HDF5 configure script warns if cxx and mpi are enabled
+            # together. There doesn't seem to be a real reason for this, except
+            # that parts of the MPI interface are not accessible via the C++
+            # interface. Since they are still accessible via the C interface,
+            # this is not actually a problem.
             extra_args.extend([
                 "--enable-parallel",
+                "--enable-unsupported",
                 "CC=%s" % spec['mpi'].prefix.bin + "/mpicc",
                 "CXX=%s" % spec['mpi'].prefix.bin + "/mpic++",
+                "FC=%s" % spec['mpi'].prefix.bin + "/mpifort",
+            ])
+        if '+threads' in spec:
+            if '+cxx' in spec or '+fortran' in spec:
+                die("Cannot use variant +threads with either +cxx or +fortran")
+            extra_args.extend([
+                '--enable-threadsafe',
+                '--disable-hl',
+                'CPPFLAGS=-DHDatexit=""',
+                'CFLAGS=-DHDatexit=""'
             ])
 
         configure(
-- 
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