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Top Forums UNIX for Dummies Questions & Answers change makefile environment variables Post 302282563 by otheus on Saturday 31st of January 2009 07:27:03 PM
Old 01-31-2009
Quote:
Originally Posted by Kwstas
@top level Makefile should not set values for
environment variables FC, CC, FFLAGS (etc) but
use the ones that mpi_make sets.
That's not completely true... you CAN set FC, CC and so forth, in the Makefile. You should compile it with mpicc or mpif77 or whatever. It will use what values you provide for these variables.

Normally your makefile will look something like this:
Code:
FC=g77
FFLAGS=-O2
MPIFC=mpif77

mpiprog: mpiprog.o

mpiprog.o: mpiprog.f
   $MPIFC $FFLAGS mpiprog.f -o mpiprog.o

 

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LEARN ABOUT CENTOS

create_makefile

CREATE_MAKEFILE 						  [FIXME: manual]						   CREATE_MAKEFILE

NAME

       create_makefile - Creates Makefile.in and Makefile from a Makefile.am

SYNOPSIS

       create_makefile [relativepath/Makefile] [relativepath]

DESCRIPTION

       create_makefile creates the Makefile.in and Makefile in a subdirectory containing a Makefile.am. This script saves time compared to
       re-running configure completely

       Note that you must supply the path to the desired MakefileMakefile.am (though the final /Makefile may be omitted).

       This script may be run from the toplevel directory (the one containing configure) or from one of it's subdirectories.

       If the source directory is different from the build directory (see the environment variables below), it will be assumed that the
       Makefile.am and Makefile.in belong beneath the source directory and that the Makefile belongs beneath the build directory.

       This utility is part of the KDE Software Development Kit.

ENVIRONMENT

       One of the following variables (but not both) should be set if the source directory is different from the build directory. If the build
       directory is simply a subdirectory of the source directory, the simpler variable OBJ_SUBDIR should be used.

       OBJ_SUBJDIR
	   Indicates that the build directory is in the given subdirectory of the source directory. For instance, if the source directory is
	   kdesdk and the build directory is kdesdk/obj-i386-linux, then OBJ_SUBDIR should be set to obj-i386-linux.

       OBJ_REPLACEMENT
	   A sed expression that is used to transform the source directory into the build directory. For instance, if the source directory is
	   ~/src/kdesdk and the build directory is ~/src/kdesdk-obj, then OBJ_REPLACEMENT should be set to s#kdesdk#kdesdk-obj#.

SEE ALSO

       create_makefiles(1)

AUTHORS

       create_makefile was written by David Faure<faure@kde.org> and others. This manual page was prepared by Ben Burton<bab@debian.org> for the
       Debian GNU/Linux system (but may be used by others).

[FIXME: source] 						   March 8, 2003						   CREATE_MAKEFILE
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