message: ENH: add "+examples" variant to umpire package
  Adds a "+examples" variant to the umpire package. Disabled by default.
  This is added b/c the examples were failing to compile with CUDA when
  building through spack.
diff: @@ -47,6 +47,7 @@ class Umpire(CMakePackage, CudaPackage):
  variant('openmp', default=False, description='Build with OpenMP support')
  variant('deviceconst', default=False,
  description='Enables support for constant device memory')
  + variant('examples', default=False, description='Build Umpire Examples')
  variant('tests', default='none', values=('none', 'basic', 'benchmarks'),
  multi=False, description='Tests to run')
  @@ -98,4 +99,7 @@ class Umpire(CMakePackage, CudaPackage):
  options.append('-DENABLE_TESTS={0}'.format(
  'Off' if 'tests=none' in spec else 'On'))
  + options.append('-DENABLE_EXAMPLES={0}'.format(
  + 'On' if '+examples' in spec else 'Off'))
  +
  return options
  