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This is the MOM5 component integrated in the IOW earth-system model.
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components.mom5/bin/mkmf

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#!/usr/bin/perl
#-----------------------------------------------------------------------
# mkmf: Perl script for makefile construction
#
# AUTHOR: V. Balaji (v.balaji@noaa.gov)
# Princeton University/GFDL
#
# Full web documentation for mkmf:
# http://www.gfdl.noaa.gov/~vb/mkmf.html
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# For the full text of the GNU General Public License,
# write to: Free Software Foundation, Inc.,
# 675 Mass Ave, Cambridge, MA 02139, USA.
#-----------------------------------------------------------------------
$ENV{'LANG'} = 'C';
require 5;
use strict;
use File::Basename;
use Getopt::Std;
use Config; # use to put in platform-specific stuff
use vars qw( $opt_a $opt_c $opt_d $opt_f $opt_l $opt_m $opt_o $opt_p $opt_t $opt_v $opt_x $opt_I ); # declare these global to be shared with Getopt:Std
#subroutines
sub ensureTrailingSlash {
#ensure trailing slash on directory names
local $/ = '/'; chomp @_[0]; @_[0] .= '/';
}
my $version = '$Id: mkmf,v 1.1.2.1 2013/12/18 17:47:54 Niki.Zadeh Exp $ ';
# initialize variables: use getopts for these
getopts( 'a:I:c:dfm:o:l:p:t:vx' ) || die "\aSyntax: $0 [-a abspath] [-c cppdefs] [-d] [-f] [-m makefile] [-o otherflags] ][-p program] [-t template] [-v] [-x] [-I \"space separated include dirs\"] [targets]\n";
$opt_v = 1 if $opt_d; # debug flag turns on verbose flag also
print "$0 $version\n" if $opt_v;
my $mkfile = $opt_m || 'Makefile';
print "Making makefile $mkfile ...\n" if $opt_v;
$opt_p = 'a.out' unless $opt_p; # set default program name
my @targets = '.'; # current working directory is always included in targets
push @targets, @ARGV; # then add remaining arguments on command line
ensureTrailingSlash($opt_a) if $opt_a;
#some generic declarations
my( $file, $include, $line, $module, $name, $object, $path, $source, $suffix, $target, $word );
my @list;
#some constants
my $endline = $/;
my @src_suffixes = ( q/\.F/, q/\.F90/, q/\.c/, q/\.f/, q/\.f90/ );
my @inc_suffixes = ( q/\.H/, q/\.fh/, q/\.h/, q/\.inc/, q/\.h90/ );
# push @inc_suffixes, @src_suffixes; # sourcefiles can be includefiles too: DISALLOW, 6 May 2004
# suffixes for the target (mkmf -p): if isn't on the list below it's a program
my @tgt_suffixes = ( q/\.a/ );
my %compile_cmd = ( # command to create .o file from a given source file suffix
q/.F/ => q/$(FC) $(CPPDEFS) $(CPPFLAGS) $(FPPFLAGS) $(FFLAGS) $(OTHERFLAGS) -c/,
q/.F90/ => q/$(FC) $(CPPDEFS) $(CPPFLAGS) $(FPPFLAGS) $(FFLAGS) $(OTHERFLAGS) -c/,
q/.c/ => q/$(CC) $(CPPDEFS) $(CPPFLAGS) $(CFLAGS) $(OTHERFLAGS) -c/,
q/.f/ => q/$(FC) $(FFLAGS) $(OTHERFLAGS) -c/,
q/.f90/ => q/$(FC) $(FFLAGS) $(OTHERFLAGS) -c/ );
my %delim_match = ( q/'/ => q/'/, # hash to find includefile delimiter pair
q/"/ => q/"/,
q/</ => q/>/ );
#formatting command for MAKEFILE, keeps very long lines to 256 characters
format MAKEFILE =
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< \~
$line
.
sub print_formatted_list{
#this routine, in conjunction with the format line above, can be used to break up long lines
# it is currently used to break up the potentially long defs of SRC, OBJ, CPPDEFS, etc.
# not used for the dependency lists
$line = "@_";
local $: = " \t\n"; # the default formatting word boundary includes the hyphen, but not here
while ( $opt_f && length $line > 254 ) {
write MAKEFILE, $line;
}
print MAKEFILE $line unless $line eq '';
print MAKEFILE "\n";
}
#begin writing makefile
open MAKEFILE, ">$mkfile" or die "\aERROR opening file $mkfile for writing: $!\n";
printf MAKEFILE "# Makefile created by %s $version\n\n", basename($0);
print MAKEFILE "SRCROOT = $opt_a\n\n" if $opt_a; # make abspath a variable
if ( $opt_c ) {
$opt_c =~ s/\s+$//;
if ( $Config{osname} eq 'aix' ) {
$opt_c .= ' -D__aix';
#AIX fortran (xlf) requires -WF, in front, comma delimiter, no spaces
my $cppdefs_xlf = '-WF "' . $opt_c . '"';
$cppdefs_xlf =~ s/,/\\,/g; # escape any commas already there
$cppdefs_xlf =~ s/\s+/,/g; # replace whitespace with commas
&print_formatted_list("CPPDEFS_XLF = $cppdefs_xlf");
$compile_cmd{'.F'} = q/$(FC) $(CPPDEFS_XLF) $(FFLAGS) $(OTHERFLAGS) -c/;
$compile_cmd{'.F90'} = q/$(FC) $(CPPDEFS_XLF) $(FFLAGS) $(OTHERFLAGS) -c/;
}
&print_formatted_list("CPPDEFS = $opt_c") if $opt_c;
}
print MAKEFILE "\nOTHERFLAGS = $opt_o" if $opt_o;
#vb 2009-12-17, include now comes after vardefs, so that it can modify make variables
print MAKEFILE "\n\ninclude $opt_t\n\n" if $opt_t; #include template if supplied
print MAKEFILE "\n.DEFAULT:\n\t-echo \$@ does not exist.\n";
print MAKEFILE "all: $opt_p\n"; # first target should be program, so you can type just 'make'
#if cppdefs flag is present, look for changes in cppdefs
my %chgdefs;
if ( $opt_c ) {
#split argument of -c into newdefs
my %newdefs;
foreach ( split /\s*-D/, $opt_c ) {
$newdefs{$_} = 1;
}
#get olddefs from file .cppdefs
my %olddefs;
my $cppdefsfile = ".$opt_p.cppdefs";
if ( -f $cppdefsfile ) {
open CPPFILE, $cppdefsfile or die "\aERROR opening cppdefsfile $cppdefsfile: $!\n";
while ( <CPPFILE> ) {
foreach $word ( split ) {
$olddefs{$word} = 1;
}
}
close CPPFILE;
#get words that are not in both newdefs and olddefs
#if you move this foreach{} outside the enclosing if{} then
# all cppdefs will be considered changed if there is no .cppdefs file.
foreach ( keys %newdefs, keys %olddefs ) {
$chgdefs{$_} = 1 unless( $newdefs{$_} && $olddefs{$_} );
}
}
#write current cppdefs list to file .cppdefs
open CPPFILE, ">$cppdefsfile";
my @newdefs = keys %newdefs;
print CPPFILE " @newdefs\n";
close CPPFILE;
if( $opt_d ) {
@list = keys %newdefs; print "newdefs= @list\n";
@list = keys %olddefs; print "olddefs= @list\n";
@list = keys %chgdefs; print "chgdefs= @list\n";
}
}
delete $chgdefs{''};
# get a list of sourcefiles to be treated from targets
# (a sourcefile is any regular file with a suffix matching src_suffixes)
# if target is a sourcefile, add to list
# if target is a directory, get all sourcefiles there
# if target is a regular file that is not a sourcefile, look for a
# sourcefile on last work of each line, rest of line (if present) is the
# compile command to apply to this file.
#@sources will contain a unique list of sourcefiles in targets
#@objects will contain corresponding objects
#separate targets into directories and files
my %scanned; # list of directories/files already scanned
my %actual_source_of; # hash returning sourcefile from object
my %source_of; # sourcefile from object, using SRCROOT variable if present
my @includepaths;
my $scanOrder = 0; # used to remember order of directory scan
foreach $target ( @targets ) {
print STDERR '.' unless $opt_v; # show progress on screen (STDERR is used because it is unbuffered)
if ( $opt_a and substr($target,0,1) ne '/' ) {
# if an abs_path exists, attach it to all relative paths
$target = $opt_a . $target;
}
ensureTrailingSlash($target) if( -d $target );
print "target=$target\n" if $opt_v;
#directory
if ( -d $target && !$scanned{$target} ) {
print "Processing directory $target\n" if $opt_v;
opendir DIR, $target;
my @files = readdir DIR;
#find all sourcefiles in directory DIR
foreach ( @files ) {
( $name, $path, $suffix ) = fileparse( "$target$_", @inc_suffixes );
push @includepaths, $target if $suffix; # is this line doing anything? looks like includepaths='' later...
( $name, $path, $suffix ) = fileparse( "$target$_", @src_suffixes );
$object = "$name.o";
if( $suffix && !$actual_source_of{$object} ) {
if ( $opt_a and substr($path,0,1) ne '/' ) { # if an abs_path exists, attach it to all relative paths
ensureTrailingSlash($path);
$path = '' if $path eq './';
$source_of{$object} = '$(SRCROOT)' . "$path$name$suffix";
$path = $opt_a . $path;
}
$actual_source_of{$object} = "$path$name$suffix";
$source_of{$object} = $actual_source_of{$object} unless $source_of{$object};
}
}
closedir DIR;
$scanned{$target} = $scanOrder++;
} elsif ( -f $target ) {
#file: check if it is a sourcefile
( $name, $path, $suffix ) = fileparse( $target, @src_suffixes );
$object = "$name.o";
if ( !$actual_source_of{$object} ) {
if ( $suffix ) {
$path = '' if $path eq './';
if ( $opt_a and substr($path,0,1) ne '/' ) { # if an abs_path exists, attach it to all relative paths
ensureTrailingSlash($path);
$source_of{$object} = '$(SRCROOT)' . "$path$name$suffix";
$path = $opt_a . $path;
}
$actual_source_of{$object} = "$path$name$suffix";
$source_of{$object} = $actual_source_of{$object} unless $source_of{$object};
} else {
( $name, $path, $suffix ) = fileparse( $target, @inc_suffixes );
if ( ! $suffix ) {
#not a sourcefile: assume it contains list of sourcefiles
#specify files requiring special commands (e.g special compiler flags) thus:
# f90 -Oaggress a.f90
#if last word on line is not a valid sourcefile, line is ignored
open CMDFILE, $target;
print "Reading commands from $target...\n" if $opt_v;
while ( <CMDFILE> ) {
next if ( $_ eq "\n");
$line = $_;
my @wordlist = split;
$file = @wordlist[$#wordlist]; # last word on line
( $name, $path, $suffix ) = fileparse( $file, @src_suffixes );
print "file=$file suffix=$suffix in $target\n" if $opt_d;
$object = "$name.o";
if ( $suffix && !$actual_source_of{$object} ) {
$path = '' if $path eq './';
if ( $opt_a and ( substr($path,0,1) ne '/' ) ) { # if an abs_path exists, attach it to all relative paths
ensureTrailingSlash($path);
$source_of{$object} = '$(SRCROOT)' . "$path$name$suffix";
$path = $opt_a . $path;
}
$actual_source_of{$object} = "$path$name$suffix";
$source_of{$object} = $actual_source_of{$object} unless $source_of{$object};
$scanned{$path} = $scanOrder++ unless $scanned{$path};
#command for this file is all of line except the filename
$line =~ /\s+$file/; $line=$`;
if ( $line ) {
$compile_cmd{"$name$suffix"} = $line;
print "Special command for file $name$suffix: ($line)\n" if $opt_v;
}
}
if ( ! $suffix ) { # look for include files
( $name, $path, $suffix ) = fileparse( $file, @inc_suffixes );
if ( $opt_a and ( substr($path,0,1) ne '/' ) ) { # if an abs_path exists, attach it to all relative paths
ensureTrailingSlash($path);
$path = $opt_a . $path;
}
print "file=$file path=$path suffix=$suffix order=$scanOrder in $target\n" if $opt_d;
# anything that's found here is an includefile but not a sourcefile...
# just include directory in scan
$scanned{$path} = $scanOrder++
if ( $suffix && !$scanned{$path} );
}
}
close CMDFILE;
}
}
}
}
}
delete $actual_source_of{''};
# sort scanned directories by scan order
sub ascendingScanOrder { $scanned{$a} <=> $scanned{$b}; }
my @dirs = sort ascendingScanOrder keys %scanned;
my @sources = values %source_of;
my @objects = keys %source_of;
if( $opt_d ) {
print "DEBUG: dirs= @dirs\n";
print "DEBUG: sources= @sources\n";
print "DEBUG: objects= @objects\n";
}
my %obj_of_module; # hash returning name of object file containing module
my %modules_used_by; # hash of modules used by a given source file (hashed against the corresponding object)
my %includes_in; # hash of includes in a given source file (hashed against the corresponding object)
my %has_chgdefs; # hash of files contains cppdefs that have been changed
#subroutine to scan file for use and module statements, and include files
# first argument is $object, second is $file
sub scanfile_for_keywords {
my $object = shift;
my $file = shift;
local $/ = $endline;
#if file has already been scanned, return: but first check if any .o needs to be removed
if( $scanned{$file} ) {
if( $has_chgdefs{$file} and -f $object ) {
unlink $object or die "\aERROR unlinking $object: $!\n";
print " Object $object is out-of-date because of change to cppdefs, removed.\n" if $opt_v;
}
return;
}
print "Scanning file $file of object $object ...\n" if $opt_v;
open FILE, $file or die "\aERROR opening file $file of object $object: $!\n";
foreach $line ( <FILE> ) {
if ( $line =~ /^\s*module\s+(\w*)/ix ) {
if ( $1 ) {
my $module = lc $1;
if ( $obj_of_module{$module} && $module ne "procedure" ) {
die "\a\nAMBIGUOUS: Module $module is associated with $file as well as $actual_source_of{$obj_of_module{$module}}.\n";
}
$obj_of_module{$module} = $object;
}
}
if ( $line =~ /^\s*use\s*(\w*)/ix ) {
$modules_used_by{$object} .= ' ' . lc $1 if $1;
}
if ( $line =~ /^[\#\s]*include\s*(['""'<])([\w\.\/]*)$delim_match{\1}/ix ) {
$includes_in{$file} .= ' ' . $2 if $2;
}
foreach ( keys %chgdefs ) {
$_ .= '='; /\s*=/; $word=$`; #cut string at =sign, else whole string
if ( $line =~ /\b$word\b/ ) {
$has_chgdefs{$file} = 1;
if ( -f $object ) {
unlink $object or die "\aERROR unlinking $object: $!\n";
print " Object $object is out-of-date because of change to cppdef $word, removed.\n" if $opt_v;
}
}
}
}
close FILE;
$scanned{$file} = 1;
print " uses modules=$modules_used_by{$object}, and includes=$includes_in{$file}.\n" if $opt_d;
}
foreach $object ( @objects ) {
&scanfile_for_keywords( $object, $actual_source_of{$object} );
}
my %off_sources; # list of source files not in current directory
my %includes; # global list of includes
my %used; # list of object files that are used by others
my @cmdline;
# for each file in sources, write down dependencies on includes and modules
foreach $object ( sort @objects ) {
print STDERR '.' unless $opt_v; # show progress on screen (STDERR is used because it is unbuffered)
my %is_used; # hash of objects containing modules used by current object
my %obj_of_include; # hash of includes for current object
$is_used{$object} = 1; # initialize with current object so as to avoid recursion
print "Collecting dependencies for $object ...\n" if $opt_v;
@cmdline = "$object: $source_of{$object}";
( $name, $path, $suffix ) = fileparse( $actual_source_of{$object}, @src_suffixes );
$off_sources{$source_of{$object}} = 1 unless( $path eq './' or $path eq '' );
#includes: done in subroutine since it must be recursively called to look for embedded includes
@includepaths = '';
&get_include_list( $object, $actual_source_of{$object} );
#modules
foreach $module ( split /\s+/, $modules_used_by{$object} ) {
$target = $obj_of_module{$module};
#we need to check target ne '' also below, since it is not mkmf's privilege
#to complain about modules not found. That should be left to the compiler.
if( $target and !$is_used{$target} ) {
$is_used{$target} = 1;
push @cmdline, $target;
$used{$target} = 1;
print " found module $module in object $target ...\n" if $opt_v;
}
}
#write the command line: if no file-specific command, use generic command for this suffix
&print_formatted_list(@cmdline);
$file = $actual_source_of{$object};
if ( $compile_cmd{$name.$suffix} ) {
print MAKEFILE "\t$compile_cmd{$name.$suffix}";
} else {
print MAKEFILE "\t$compile_cmd{$suffix}";
}
foreach ( @includepaths ) { # include files may be anywhere in directory array
print MAKEFILE " -I$_" if $_;
}
if ( $opt_I ){
foreach ( split /\s+/, $opt_I ){
print MAKEFILE " -I$_";
}
}
print MAKEFILE "\t$source_of{$object}\n";
# subroutine to seek out includes recursively
sub get_include_list {
my( $incfile, $incname, $incpath, $incsuffix );
my @paths;
my $object = shift;
my $file = shift;
foreach ( split /\s+/, $includes_in{$file} ) {
print "object=$object, file=$file, include=$_.\n" if $opt_d;
( $incname, $incpath, $incsuffix ) = fileparse( $_, @inc_suffixes );
if( $incsuffix ) { # only check for files with proper suffix
undef $incpath if $incpath eq './';
if( $incpath =~ /^\// ) {
@paths = $incpath; # exact incpath specified, use it
} else {
@paths = @dirs;
}
foreach ( @paths ) {
local $/ = '/'; chomp; # remove trailing / if present
my $newincpath = "$_/$incpath" if $_;
undef $newincpath if $newincpath eq './';
$incfile = "$newincpath$incname$incsuffix";
if ( $opt_a and ( substr($newincpath,0,1) ne '/' ) ) {
$newincpath = '$(SRCROOT)' . $newincpath;
}
print "DEBUG: checking for $incfile in $_ ...\n" if $opt_d;
if ( -f $incfile and $obj_of_include{$incfile} ne $object ) {
print " found $incfile ...\n" if $opt_v;
push @cmdline, "$newincpath$incname$incsuffix";
$includes{$incfile} = 1;
chomp( $newincpath, $path );
$off_sources{$incfile} = 1 if $newincpath;
$newincpath = '.' if $newincpath eq '';
push @includepaths, $newincpath unless( grep $_ eq $newincpath, @includepaths );
&scanfile_for_keywords($object,$incfile);
$obj_of_include{$incfile} = $object;
&get_include_list($object,$incfile); # recursively look for includes
last;
}
}
}
}
}
}
#lines to facilitate creation of local copies of source from other directories
#commented out because it makes make default rules kick in
foreach ( keys %off_sources ) {
my $file = basename($_);
$file =~ s/\$\(SRCROOT\)//;
print MAKEFILE "./$file: $_\n\tcp $_ .\n";
}
#objects not used by other objects
#if every object is a module, then only the unused objects
#need to be passed to the linker (see commented OBJ = line below).
#if any f77 or C routines are present, we need complete list
my @unused_objects;
foreach $object ( @objects ) {
push @unused_objects, $object unless $used{$object};
}
&print_formatted_list( "SRC =", @sources, keys %includes );
&print_formatted_list( "OBJ =", @objects );
# &print_formatted_list( "OBJ =", @unused_objects );
my $noff = scalar keys %off_sources;
&print_formatted_list( "OFF =", keys %off_sources ) if $noff > 0;
#write targets
print MAKEFILE "clean: neat\n\t-rm -f .$opt_p.cppdefs \$(OBJ) $opt_p\n";
print MAKEFILE "neat:\n\t-rm -f \$(TMPFILES)\n";
print MAKEFILE "localize: \$(OFF)\n\tcp \$(OFF) .\n" if $noff > 0;
print MAKEFILE "TAGS: \$(SRC)\n\tetags \$(SRC)\n";
print MAKEFILE "tags: \$(SRC)\n\tctags \$(SRC)\n";
( $name, $path, $suffix ) = fileparse( $opt_p, @tgt_suffixes );
if( $suffix eq '.a' ) {
print MAKEFILE "$opt_p: \$(OBJ)\n\t\$(AR) \$(ARFLAGS) $opt_p \$(OBJ)\n";
} else {
# opt_l is a new flag added to take care of libraries
print MAKEFILE "$opt_p: \$(OBJ) $opt_l\n\t\$(LD) \$(OBJ) -o $opt_p $opt_l \$(LDFLAGS)\n";
}
close MAKEFILE;
print " $mkfile is ready.\n";
exec 'make', '-j', '8', '-f', $mkfile if $opt_x;