When using a restricted run time (such as ZFP or Ravenscar), the compiler failed when there was a renaming of an attribute as subprogram because it tried to load a package not available. This patch avoids this problem by checking before trying to load the offending package.
The following must compile quietly: package Rename_Attribute is function Integer_Pred (J: in Integer) return Integer renames Integer'Pred; end Rename_Attribute; Tested on x86_64-pc-linux-gnu, committed on trunk 2011-09-01 Jose Ruiz <r...@adacore.com> * sem_ch8.adb (Attribute_Renaming): Add missing check to avoid loading package System.Aux_Dec when using restricted run-time libraries which do not have this package.
Index: sem_ch8.adb =================================================================== --- sem_ch8.adb (revision 178381) +++ sem_ch8.adb (working copy) @@ -3290,10 +3290,12 @@ -- type is still not frozen). We exclude from this processing generic -- formal subprograms found in instantiations and AST_Entry renamings. - -- We must exclude VM targets because entity AST_Handler is defined in - -- package System.Aux_Dec which is not available in those platforms. + -- We must exclude VM targets and restricted run-time libraries because + -- entity AST_Handler is defined in package System.Aux_Dec which is not + -- available in those platforms. if VM_Target = No_VM + and then not Restricted_Profile and then not Present (Corresponding_Formal_Spec (N)) and then Etype (Nam) /= RTE (RE_AST_Handler) then