feat(initial): added portable mfem build system

meson.build

@@ -0,0 +1,58 @@
+project(
+  'meson-mfem-template',
+  ['c', 'cpp'],
+  version: '0.1.0',
+  meson_version: '>=1.9.1',
+  default_options: [
+    'c_std=c11',
+    'cpp_std=c++23',
+    'warning_level=2',
+  ],
+)
+
+python_mod = import('python')
+fs = import('fs')
+cc = meson.get_compiler('c')
+cpp = meson.get_compiler('cpp')
+platform_c_args = []
+platform_cpp_args = []
+platform_link_args = []
+if host_machine.system() == 'darwin' and get_option('macos_deployment_target') != ''
+  macos_minimum_flag = '-mmacosx-version-min=' + get_option('macos_deployment_target')
+  platform_c_args += [macos_minimum_flag]
+  platform_cpp_args += [macos_minimum_flag]
+  platform_link_args += [macos_minimum_flag]
+  add_project_arguments(macos_minimum_flag, language: ['c', 'cpp'])
+  add_project_link_arguments(macos_minimum_flag, language: ['c', 'cpp'])
+endif
+
+subdir('build-check')
+subdir('build-config')
+subdir('include/meson_mfem_template')
+subdir('examples')
+subdir('build-python')
+subdir('tests')
+
+summary(
+  {
+    'MFEM provider': mfem_provider,
+    'dependency profile': get_option('feature_profile'),
+    'allow preinstalled': get_option('allow_preinstalled'),
+    'parallel MPI/Hypre': mfem_has_mpi,
+    'METIS': mfem_has_metis,
+    'CUDA': mfem_has_cuda,
+    'HIP': mfem_has_hip,
+    'OpenMP': mfem_has_openmp,
+    'GSLIB': mfem_has_gslib,
+    'zlib': mfem_has_zlib,
+    'SUNDIALS': mfem_has_sundials,
+    'libCEED': mfem_features.get('ceed'),
+    'FMS': mfem_features.get('fms'),
+    'Algoim': mfem_features.get('algoim'),
+    'Python bindings': get_option('build_python'),
+    'examples': get_option('build_examples'),
+    'tests': get_option('build_tests'),
+  },
+  section: 'meson-mfem-template ' + meson.project_version(),
+  bool_yn: true,
+)