build(wasm): major progress on gridfire compiling to wasm

build-check/CPPC/meson.build

@@ -0,0 +1,33 @@
+cppc = meson.get_compiler('cpp')
+
+if cppc.get_id() == 'clang'
+    message('disabling bitwise-instead-of-logical warnings for clang')
+    add_project_arguments('-Wno-bitwise-instead-of-logical', language: 'cpp')
+endif
+
+if cppc.get_id() == 'gcc'
+    message('disabling psabi warnings for gcc')
+    add_project_arguments('-Wno-psabi', language: 'cpp')
+    
+    if (cppc.version().version_compare('<14.0'))
+      error('g++ version must be at least 14.0, found ' + cppc.version())
+    endif
+endif
+
+if not cppc.has_header('print')
+    error('C++ standard library header <print> not found. Please ensure your compiler and standard library supports C++23. We have already validated your compiler version so this is likely an issue with your standard library installation.')
+endif
+if not cppc.has_header('format')
+    error('C++ standard library header <format> not found. Please ensure your compiler and standard library supports C++23. We have already validated your compiler version so this is likely an issue with your standard library installation.')
+endif
+
+# For Eigen
+add_project_arguments('-Wno-deprecated-declarations', language: 'cpp')
+
+if get_option('build_python')
+    message('enabling hidden visibility for C++ symbols when building Python extension. This reduces the size of the resulting shared library.')
+    add_project_arguments('-fvisibility=hidden', language: 'cpp')
+else
+    message('enabling default visibility for C++ symbols')
+    add_project_arguments('-fvisibility=default', language: 'cpp')
+endif

build-check/FC/meson.build

@@ -0,0 +1,15 @@
+if get_option('build_fortran')
+  add_languages('fortran', native: true)
+  message('Found FORTRAN compiler: ' + meson.get_compiler('fortran').get_id())
+  message('Fortran standard set to: ' + get_option('fortran_std'))
+  message('Building fortran module (gridfire_mod.mod)')
+  fc = meson.get_compiler('fortran')
+  if not get_option('unsafe_fortran')
+    if fc.get_id() != 'gcc'
+      error('The only supported fortran compiler for GridFire is gfortran (version >= 14.0), found ' + fc  + '. GridFire has not been tested with any other compilers. You can disable this check with the -Dunsafe-fortran=true flag to try other compilers')
+    endif
+  endif
+  if (fc.version().version_compare('<14.0'))
+      error('gfortran version must be at least 14.0, found ' + fc.version())
+  endif
+endif

build-check/meson.build

@@ -0,0 +1,15 @@
+message('Found CXX compiler: ' + meson.get_compiler('cpp').get_id())
+message('C++ standard set to: ' + get_option('cpp_std'))
+
+cc = meson.get_compiler('c')
+
+ignore_unused_args = '-Wno-unused-command-line-argument'
+
+add_global_arguments(ignore_unused_args, language: 'cpp')
+add_global_arguments(ignore_unused_args, language: 'c')
+
+
+subdir('CPPC')
+subdir('FC')
+
+