cherry-picking global ordinal type variant from...

cherry-picking global ordinal type variant from https://github.com/spack/spack/pull/14215

 and setting dealii to GO int, to make it compile again (#15288)

Co-authored-by: Andrey Prokopenko <andrey.prok@gmail.com>

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

@@ -151,6 +151,7 @@ class Dealii(CMakePackage, CudaPackage):
     depends_on('slepc@:3.6.3',     when='@:8.4.1+slepc+petsc+mpi')
     depends_on('slepc~arpack',     when='+slepc+petsc+mpi+int64')
     depends_on('sundials@:3~pthread', when='@9.0:+sundials')
+    depends_on('trilinos gotype=int', when='+trilinos')
     # Both Trilinos and SymEngine bundle the Teuchos RCP library.
     # This leads to conflicts between macros defined in the included
     # headers when they are not compiled in the same mode.

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

@@ -66,6 +66,10 @@ class Trilinos(CMakePackage):
             description='Enable explicit template instantiation (ETI)')
     variant('float', default=False,
             description='Enable single precision (float) numbers in Trilinos')
+    variant('gotype', default='long',
+            values=('int', 'long', 'long_long'),
+            multi=False,
+            description='global ordinal type for Tpetra')
     variant('fortran',      default=True,
             description='Compile with Fortran support')
     variant('openmp',       default=False,
@@ -744,10 +748,15 @@ def cmake_args(self):
         )
 
         if '+explicit_template_instantiation' in spec and '+tpetra' in spec:
+            gotype = spec.variants['gotype'].value
             options.extend([
                 '-DTpetra_INST_DOUBLE:BOOL=ON',
-                '-DTpetra_INST_INT_LONG:BOOL=ON',
-                '-DTpetra_INST_INT_LONG_LONG:BOOL=ON',
+                '-DTpetra_INST_INT_INT:BOOL=%s' % (
+                    'ON' if gotype == 'int' else 'OFF'),
+                '-DTpetra_INST_INT_LONG:BOOL=%s' % (
+                    'ON' if gotype == 'long' else 'OFF'),
+                '-DTpetra_INST_INT_LONG_LONG:BOOL=%s' % (
+                    'ON' if gotype == 'long_long' else 'OFF'),
                 '-DTpetra_INST_COMPLEX_DOUBLE=%s' % complex_s,
                 '-DTpetra_INST_COMPLEX_FLOAT=%s' % complex_float_s,
                 '-DTpetra_INST_FLOAT=%s' % float_s,