Nested modules

I cannot understand why the intrinsic function COMPILER_VERSION cannot be accessed from the main program through the nested modules MOD1 and MOD2, but the function DBL can. The compiler warns with

warning 1259 - COMPILER_VERSION is a standard intrinsic that requires USE ISO_FORTRAN_ENV.

I must be overlooking something trivial.

MODULE MOD1
USE ISO_FORTRAN_ENV
IMPLICIT NONE
INTEGER, PARAMETER :: M1=1
CONTAINS
INTEGER FUNCTION DBL(X)
  IMPLICIT NONE
  INTEGER, INTENT(IN) :: X
  DBL=2*X
END FUNCTION DBL
END MODULE MOD1

MODULE MOD2
USE MOD1
IMPLICIT NONE
INTEGER, PARAMETER :: M2=2
END MODULE MOD2

PROGRAM MODTEST
USE MOD2
IMPLICIT NONE
WRITE(*,*) 'Version : ', COMPILER_VERSION()
WRITE(*,*) M1, M2, DBL(3)
END PROGRAM MODTEST

jlb

Your code exposes a bug in FTN95. For the time being it is necessary to move USE ISO_FORTRAN_ENV to the main program or, in general, to the subprogram that calls COMPILER_VERSION().

Paul Thank you for your usual prompt and and enlightening reply.

This failure has now been fixed for the next release of FTN95.

Paul Thank you very much for this improvement.