http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53736
Bug #: 53736 Summary: Instantiation error for Indefinite_Hashed_Sets package when using -gnatN switch Classification: Unclassified Product: gcc Version: 4.7.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada AssignedTo: unassig...@gcc.gnu.org ReportedBy: stephane.car...@gmail.com If you compile the following package instantiation with -gnatN switch the compiler reports instantiation errors. Removing the -gnatN switch compiles the package. --- with Ada.Strings.Hash; with Ada.Containers.Indefinite_Hashed_Sets; package Bug is new Ada.Containers.Indefinite_Hashed_Sets (Element_Type => String, Hash => Ada.Strings.Hash, Equivalent_Elements => "="); --- gcc -c bug.ads -gnatN -O2 bug.ads:4:01: instantiation error at a-cihase.adb:294 bug.ads:4:01: missing argument for parameter "Container" in call to "Clear" declared at a-cihase.ads:121, instance at line 4 bug.ads:4:01: instantiation error at a-cihase.adb:294 bug.ads:4:01: missing argument for parameter "Source" in call to "Union" declared at a-cihase.ads:232, instance at line 4 gcc -c bug.ads -O2 works. gcc -c bug.ads -gnatN fails. This is a regression that came with 4.7 branch. This package is compiled correctly with -Os -gnatN for 4.6.3, 4.4.3 and 4.5.