<?xml version="1.0"?>
<!--
Copyright The SCons Foundation

This file is processed by the bin/SConsDoc.py module.
See its __doc__ string for a discussion of the format.
-->

<!DOCTYPE sconsdoc [
<!ENTITY % scons SYSTEM '../../doc/scons.mod'>
%scons;
<!ENTITY % builders-mod SYSTEM '../../doc/generated/builders.mod'>
%builders-mod;
<!ENTITY % functions-mod SYSTEM '../../doc/generated/functions.mod'>
%functions-mod;
<!ENTITY % tools-mod SYSTEM '../../doc/generated/tools.mod'>
%tools-mod;
<!ENTITY % variables-mod SYSTEM '../../doc/generated/variables.mod'>
%variables-mod;
]>

<sconsdoc xmlns="http://www.scons.org/dbxsd/v1.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.scons.org/dbxsd/v1.0 http://www.scons.org/dbxsd/v1.0/scons.xsd">

<tool name="f90">
<summary>
<para>
Set construction variables for generic POSIX Fortran 90 compilers.
</para>
</summary>
<sets>
<item>F90</item>
<item>F90FLAGS</item>
<item>F90COM</item>
<item>F90PPCOM</item>
<item>SHF90</item>
<item>SHF90FLAGS</item>
<item>SHF90COM</item>
<item>SHF90PPCOM</item>
<item>_F90INCFLAGS</item>
</sets>
<uses>
<item>F90COMSTR</item>
<item>F90PPCOMSTR</item>
<item>SHF90COMSTR</item>
<item>SHF90PPCOMSTR</item>
<item>FORTRANCOMMONFLAGS</item>
</uses>
</tool>

<cvar name="F90">
<summary>
<para>
The Fortran 90 compiler.
You should normally set the &cv-link-FORTRAN; variable,
which specifies the default Fortran compiler
for all Fortran versions.
You only need to set &cv-link-F90; if you need to use a specific compiler
or compiler version for Fortran 90 files.
</para>
</summary>
</cvar>

<cvar name="F90COM">
<summary>
<para>
The command line used to compile a Fortran 90 source file to an object file.
You only need to set &cv-link-F90COM; if you need to use a specific
command line for Fortran 90 files.
You should normally set the &cv-link-FORTRANCOM; variable,
which specifies the default command line
for all Fortran versions.
</para>
</summary>
</cvar>

<cvar name="F90COMSTR">
<summary>
<para>
If set, the string displayed when a Fortran 90 source file
is compiled to an object file.
If not set, then &cv-link-F90COM; or &cv-link-FORTRANCOM;
(the command line) is displayed.
</para>
</summary>
</cvar>

<cvar name="F90FILESUFFIXES">
<summary>
<para>
The list of file extensions for which the F90 dialect will be used. By
default, this is <literal>['.f90']</literal>
</para>
</summary>
</cvar>

<cvar name="F90PPFILESUFFIXES">
<summary>
<para>
The list of file extensions for which the compilation + preprocessor pass for
F90 dialect will be used. By default, this is empty.
</para>
</summary>
</cvar>

<cvar name="F90FLAGS">
<summary>
<para>
General user-specified options that are passed to the Fortran 90 compiler.
Note that this variable does
<emphasis>not</emphasis>
contain
<option>-I</option>
(or similar) include search path options
that scons generates automatically from &cv-link-F90PATH;.
See
&cv-link-_F90INCFLAGS;
below,
for the variable that expands to those options.
You only need to set &cv-link-F90FLAGS; if you need to define specific
user options for Fortran 90 files.
You should normally set the &cv-link-FORTRANFLAGS; variable,
which specifies the user-specified options
passed to the default Fortran compiler
for all Fortran versions.
</para>
</summary>
</cvar>

<cvar name="_F90INCFLAGS">
<summary>
<para>
An automatically-generated construction variable
containing the Fortran 90 compiler command-line options
for specifying directories to be searched for include files.
The value of &cv-link-_F90INCFLAGS; is created
by appending &cv-link-INCPREFIX; and &cv-link-INCSUFFIX;
to the beginning and end
of each directory in &cv-link-F90PATH;.
</para>
</summary>
</cvar>

<cvar name="F90PATH">
<summary>
<para>
The list of directories that the Fortran 90 compiler will search for include
directories. The implicit dependency scanner will search these
directories for include files. Don't explicitly put include directory
arguments in &cv-link-F90FLAGS; because the result will be non-portable
and the directories will not be searched by the dependency scanner. Note:
directory names in &cv-link-F90PATH; will be looked-up relative to the SConscript
directory when they are used in a command. To force
&scons;
to look-up a directory relative to the root of the source tree use #:
You only need to set &cv-link-F90PATH; if you need to define a specific
include path for Fortran 90 files.
You should normally set the &cv-link-FORTRANPATH; variable,
which specifies the include path
for the default Fortran compiler
for all Fortran versions.
</para>

<example_commands>
env = Environment(F90PATH='#/include')
</example_commands>

<para>
The directory look-up can also be forced using the
&Dir;()
function:
</para>

<example_commands>
include = Dir('include')
env = Environment(F90PATH=include)
</example_commands>

<para>
The directory list will be added to command lines
through the automatically-generated
&cv-link-_F90INCFLAGS;
construction variable,
which is constructed by
appending the values of the
&cv-link-INCPREFIX; and &cv-link-INCSUFFIX;
construction variables
to the beginning and end
of each directory in &cv-link-F90PATH;.
Any command lines you define that need
the F90PATH directory list should
include &cv-link-_F90INCFLAGS;:
</para>

<example_commands>
env = Environment(F90COM="my_compiler $_F90INCFLAGS -c -o $TARGET $SOURCE")
</example_commands>
</summary>
</cvar>

<cvar name="F90PPCOM">
<summary>
<para>
The command line used to compile a Fortran 90 source file to an object file
after first running the file through the C preprocessor.
Any options specified in the &cv-link-F90FLAGS; and &cv-link-CPPFLAGS; construction variables
are included on this command line.
You only need to set &cv-link-F90PPCOM; if you need to use a specific
C-preprocessor command line for Fortran 90 files.
You should normally set the &cv-link-FORTRANPPCOM; variable,
which specifies the default C-preprocessor command line
for all Fortran versions.
</para>
</summary>
</cvar>

<cvar name="F90PPCOMSTR">
<summary>
<para>
If set, the string displayed when a Fortran 90 source file
is compiled after first running the file through the C preprocessor.
If not set, then &cv-link-F90PPCOM; or &cv-link-FORTRANPPCOM;
(the command line) is displayed.
</para>
</summary>
</cvar>

<cvar name="SHF90">
<summary>
<para>
The Fortran 90 compiler used for generating shared-library objects.
You should normally set the &cv-link-SHFORTRAN; variable,
which specifies the default Fortran compiler
for all Fortran versions.
You only need to set &cv-link-SHF90; if you need to use a specific compiler
or compiler version for Fortran 90 files.
</para>
</summary>
</cvar>

<cvar name="SHF90COM">
<summary>
<para>
The command line used to compile a Fortran 90 source file
to a shared-library object file.
You only need to set &cv-link-SHF90COM; if you need to use a specific
command line for Fortran 90 files.
You should normally set the &cv-link-SHFORTRANCOM; variable,
which specifies the default command line
for all Fortran versions.
</para>
</summary>
</cvar>

<cvar name="SHF90COMSTR">
<summary>
<para>
If set, the string displayed when a Fortran 90 source file
is compiled to a shared-library object file.
If not set, then &cv-link-SHF90COM; or &cv-link-SHFORTRANCOM;
(the command line) is displayed.
</para>
</summary>
</cvar>

<cvar name="SHF90FLAGS">
<summary>
<para>
Options that are passed to the Fortran 90 compiler
to generated shared-library objects.
You only need to set &cv-link-SHF90FLAGS; if you need to define specific
user options for Fortran 90 files.
You should normally set the &cv-link-FORTRANCOMMONFLAGS; variable,
which specifies the user-specified options
passed to the default Fortran compiler
for all Fortran versions.
</para>
</summary>
</cvar>

<cvar name="SHF90PPCOM">
<summary>
<para>
The command line used to compile a Fortran 90 source file to a
shared-library object file
after first running the file through the C preprocessor.
Any options specified in the &cv-link-SHF90FLAGS; and &cv-link-CPPFLAGS; construction variables
are included on this command line.
You only need to set &cv-link-SHF90PPCOM; if you need to use a specific
C-preprocessor command line for Fortran 90 files.
You should normally set the &cv-link-SHFORTRANPPCOM; variable,
which specifies the default C-preprocessor command line
for all Fortran versions.
</para>
</summary>
</cvar>

<cvar name="SHF90PPCOMSTR">
<summary>
<para>
If set, the string displayed when a Fortran 90 source file
is compiled to a shared-library object file
after first running the file through the C preprocessor.
If not set, then &cv-link-SHF90PPCOM; or &cv-link-SHFORTRANPPCOM;
(the command line) is displayed.
</para>
</summary>
</cvar>

</sconsdoc>
