}
/* Warn for unused variables, but not if they're inside a common
- block, a namelist, or are use-associated. */
+ block or a namelist. */
else if (warn_unused_variable
- && !(sym->attr.in_common || sym->attr.use_assoc || sym->mark
- || sym->attr.in_namelist))
+ && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
{
- gfc_warning ("Unused variable '%s' declared at %L", sym->name,
- &sym->declared_at);
- if (sym->backend_decl != NULL_TREE)
- TREE_NO_WARNING(sym->backend_decl) = 1;
- }
- else if (warn_unused_variable && sym->attr.use_only)
- {
- gfc_warning ("Unused module variable '%s' which has been explicitly "
- "imported at %L", sym->name, &sym->declared_at);
- if (sym->backend_decl != NULL_TREE)
- TREE_NO_WARNING(sym->backend_decl) = 1;
+ if (sym->attr.use_only)
+ {
+ gfc_warning ("Unused module variable '%s' which has been "
+ "explicitly imported at %L", sym->name,
+ &sym->declared_at);
+ if (sym->backend_decl != NULL_TREE)
+ TREE_NO_WARNING(sym->backend_decl) = 1;
+ }
+ else if (!sym->attr.use_assoc)
+ {
+ gfc_warning ("Unused variable '%s' declared at %L",
+ sym->name, &sym->declared_at);
+ if (sym->backend_decl != NULL_TREE)
+ TREE_NO_WARNING(sym->backend_decl) = 1;
+ }
}
/* For variable length CHARACTER parameters, the PARM_DECL already
--- /dev/null
+! { dg-do compile }
+!
+! PR 55352: [4.7/4.8 Regression] Erroneous gfortran warning of unused module variable when variable is only used in namelist
+!
+! Contributed by <AstroFloyd@gmail.com>
+
+module data
+ implicit none
+ integer :: a
+end module data
+
+program test
+ use data, only: a
+ implicit none
+ a = 1
+ call write_data()
+end program test
+
+subroutine write_data()
+ use data, only: a
+ implicit none
+ namelist /write_data_list/ a
+ open(unit=10,form='formatted',status='replace',action='write',file='test.dat')
+ write(10, nml=write_data_list)
+ close(10)
+end subroutine write_data
+
+! { dg-final { cleanup-modules "data" } }