Fortran: Fix submodule file names across compilers

The naming convention for submodule files varies across compilers.  Add
a table to the compiler information modules and thread the information
through to the Fortran module dependency parser.  Fill out the table for
compiler ids known to support Fortran submodules.

Fixes: #18746

1 files changed, 2 insertions, 0 deletions

diff --git a/Source/cmDependsFortran.h b/Source/cmDependsFortran.h
index f2d9cf2..0485115 100644
--- a/Source/cmDependsFortran.h
+++ b/Source/cmDependsFortran.h
@@ -78,6 +78,8 @@ protected:
   std::string SourceFile;
 
   std::string CompilerId;
+  std::string SModSep;
+  std::string SModExt;
 
   std::set<std::string> PPDefinitions;