Use Makefiles for Compilation

This topic describes the use of makefiles to compile your application. You can use makefiles to specify a number of files with various paths, and to save this information for multiple compilations.

Use Makefiles to Store Information for Compilation on Linux* or macOS*

To run make from the command line using the Intel® Fortran Compiler, make sure that /usr/bin and /usr/local/bin are in your PATH environment variable.

If you use the C shell, you can edit your .cshrc file and add the following:

setenv PATH /usr/bin:/usr/local/bin:$PATH

Then you can compile using the following syntax:

make -f yourmakefile

Where -f is the make command option to specify a particular makefile name.

Use Makefiles to Store Information for Compilation on Windows*

To use a makefile to compile your source files, use the nmake command. For example, if your project is your_project.mak, you can use the following syntax:

nmake /f [makefile_name.mak] FPP=[compiler_name] LINK32=[linker_name]

For example:

prompt> nmake /f your_project.mak FPP=ifort LINK32=xilink

Argument	Description
/f	The nmake option to specify a makefile.
your_project.mak	The makefile used to generate object and executable files.
FPP	The preprocessor/compiler that generates object and executable files. (The name of this macro may be different for your makefile.)
LINK32	The linker that is used.

The nmake command creates object files (.obj) and executable files () from the information specified in the your_project.mak makefile.

Generating Build Dependencies for Use in a Makefile

Use the gen-dep compiler option to generate build dependencies for a compilation.

Build dependencies include a list of all files included with INCLUDE statements and .mod files accessed with USE statements. The resulting output can be used to create a makefile to with the appropriate dependencies resolved.

Consider a source file that contains the following:

 module b
 include 'gendep001b.inc'
 end module b

 program gendep001
 use b
 a_global = b_global
end

When you compile the source using the gen-dep option, the following output is produced:

 b.mod : \
 gendep001.f90
gendep001.obj : \
 gendep001.f90 gendep001b.inc

This output indicates that the generated file, b.mod, depends on the source file, gendep001.f90. Similarly, the generated file, gendep001.obj, depends on the files, gendpe001.f90 and gendep001b.inc.