A project

We'll illustrate the use and usefulness of make with a little project. This project does nothing more than print out the current version of the program.

This project has three source code files

project.f

The main program, which calls a subroutine, print_project_info

print_project_info.f

Contains the subroutine print_project_info

project_info.f

Contains parameter definitions in a Fortran 90 module that are used by the subroutine print_project_info

!	FILENAME: project.f
!
PROGRAM project

	IMPLICIT NONE

	CALL print_project_info

	STOP
	
END PROGRAM project

!	FILENAME: print_project_info.f
!
SUBROUTINE print_project_info

	USE project_info
	IMPLICIT NONE

	PRINT *,"This is version",MAJOR_VERSION,".",MINOR_VERSION

END SUBROUTINE print_project_info

!	FILENAME: project_info.f
!
MODULE project_info 

	IMPLICIT NONE
	SAVE

	INTEGER, PARAMETER:: MAJOR_VERSION=0, MINOR_VERSION=2

END MODULE project_info