README.Unix.txt - 2010-11-14 - Building FLTK on Unix

-----------------------------------------------------

 CONTENTS

========== 

  1   INTRODUCTION

  2   PREREQUISITES

    2.1   Ubuntu 10

    2.2   Linux Mint 9

    2.3   Fedora 13

    2.4   * http://www2.mandriva.com/

    2.5   * http://www.opensuse.org/en/

    2.6   * http://www.debian.org/

    2.7   * Mandrake?

    2.8   SunOS / Solaris

    2.9   * SGI?

    2.10  HP-UX

    2.11  AIX

    2.12  NetBSD

  3   HOW TO BUILD FLTK USING GCC

    3.1   Prerequisites

    3.2   Downloading and Unpacking

    3.3   Configuring FLTK

    3.4   Building FLTK

    3.5   Testing FLTK

    3.6   Installing FLTK

    3.7   Creating new Projects

  4   CREATING A NEW PROJECT IN CODE::BLOCKS

  5   DOCUMENT HISTORY

* TODO: we still need to write these chapters

 1  INTRODUCTION

=================

FLTK currently supports the following development environments on most Unix

platforms:

    - gcc command line tools

    - Code::Blocks

    - ...

The Symbol font and the Zapf Dingbats font do not work on X11. This is correct

behavior for UTF-8 platforms.

 2  PREREQUISITES

==================

 2.1  Ubuntu 10

----------------

Ubuntu Linux can be downloaded here:

  http://www.ubuntu.com/

If you have not done so yet, download and install Ubuntu.

Open a shell and install some software:

  sudo apt-get install g++

  sudo apt-get install gdb

  sudo apt-get install subversion

  sudo apt-get install autoconf

  sudo apt-get install libx11-dev

  sudo apt-get install libglu1-mesa-dev

These two are optional, but highly recommended:  

  sudo apt-get install libasound2-dev

  sudo apt-get install libxft-dev

If you are planning to use the Code::Blocks IDE, also install this

  sudo apt-get install codeblocks

I like to use subversion to install the latest FLTK-1.3.release:

  svn co http://seriss.com/public/fltk/fltk/branches/branch-1.3/ fltk-1.3

To update to the latest version, just go into the fltk-1.3 directory and type

  svn update

 2.2  Linux Mint 9

-------------------

Linux Mint 9 can be downloaded here:

  http://www.linuxmint.com/

If you have not done so yet, download and install Linux Mint.

Open a shell and install some software:

  sudo apt-get install g++

  sudo apt-get install gdb

  sudo apt-get install subversion

  sudo apt-get install autoconf

  sudo apt-get install libx11-dev

  sudo apt-get install libglu1-mesa-dev

These two are optional, but highly recommended:  

  sudo apt-get install libasound2-dev

  sudo apt-get install libxft-dev

If you are planning to use the Code::Blocks IDE, also install this

  sudo apt-get install codeblocks

I like to use subversion to install the latest FLTK-1.3.release:

  svn co http://seriss.com/public/fltk/fltk/branches/branch-1.3/ fltk-1.3

To update to the latest version, just go into the fltk-1.3 directory and type

  svn update

FIXME: no FL_SYMBOL font (-*-symbol-*),  font 15 (Zapf-Dingbats)

 2.3  Fedora 13

-------------------

Fedora 13 Linux can be downloaded here:

  http://fedoraproject.org/

If you have not done so yet, download and install Fedora.

Open a terminal window and install some software. In Fedora, the default user 

has no permission to call "sudo", so we will change user a few times:

  su root

  yum groupinstall "Development Tools"

  yum groupinstall "X Software Development"

  yum groupinstall "C Development Tools and Libraries"

If you are planning to use the Code::Blocks IDE, also install this

  yum install codeblocks.i686  (for 64 bit machines)

Don't forget to leave root status (Ctrl-D) before loading FLTK. To install FLTK 

for every user, you either have to set root user again, or use "visudo" to add 

yourself to the "sudo" list.

I like to use subversion to install the latest FLTK-1.3.release:

  svn co http://seriss.com/public/fltk/fltk/branches/branch-1.3/ fltk-1.3

To update to the latest version, just go into the fltk-1.3 directory and type

  svn update

FIXME: no FL_SYMBOL font (-*-symbol-*),  font 15 (Zapf-Dingbats)

 2.8  SunOS / Solaris

----------------------

SunOS is a commercial operating system from Sun Microsystems (in 2009 the

company was sold to Oracle). SunOS is also called Solaris since version 5.

There was an open source derivative called OpenSolaris (based on Solaris 10)

that was cancelled by Oracle. The successor in spirit is called OpenIndiana

and can be downloaded from here:

  http://www.openindiana.org/

For FLTK you need at least SunOS 5.7 (aka Solaris 7). This version supports

64 bit machines and POSIX threads. For machines with 64 bit SPARC processors

it is highly recommended to use Sun compilers, the 64 bit code generated by

older versions of GCC for such machines is unusable (expect something between

horribly broken and immediate crash).

Consider using pkgsrc with this operating system. See the NetBSD section if

you want to do so.

If you have GCC and Sun compilers installed, configure your environment like

this to use the Sun compilers and pkgsrc graphics libraries:

  export CC="cc"

  export CXX="CC"

  export CPPFLAGS="-I/usr/pkg/include"

  export LDFLAGS="-L/usr/pkg/lib -R/usr/pkg/lib"

To build a 64 bit FLTK library, add the following flags:

  export CFLAGS="-xarch=v9"

  export CXXFLAGS="-xarch=v9"

 2.10  HP-UX

-------------

HP-UX is a commercial operating system from HP, no free or open source

derivatives are available.

For FLTK you need at least HP-UX 11.11 and the latest patch bundles should be

installed.

Consider using pkgsrc with this operating system. See the NetBSD section if

you want to do so.

 2.11  AIX

-----------

AIX is a commercial operating system from IBM, no free or open source

derivatives are available.

For FLTK you need at least AIX 5L, I have tested version 5.1 patched to ML9.

Consider using pkgsrc with this operating system. See the NetBSD section if

you want to do so.

 2.12  NetBSD

--------------

NetBSD can be downloaded here:

  http://www.netbsd.org/

If you have not done so yet, download and install NetBSD. Ensure that the

optional distribution sets "comp" (Compiler, header files, development tools)

and x*** (X Window System) are installed.

Now install and configure pkgsrc. The current version can be downloaded here:

  http://www.pkgsrc.org/

To use the current stable version of FLTK, simply install it from pkgsrc:

  cd /usr/pkgsrc/x11/fltk13

  bmake install

For the latest development snapshot, first install the svn client from pkgsrc:

  cd /usr/pkgsrc/devel/subversion

  bmake install

Now fetch the latest FLTK source code:

  svn co http://seriss.com/public/fltk/fltk/branches/branch-1.3/ fltk-1.3

To update to the latest version, just go into the fltk-1.3 directory and type

  svn update

If you have installed JPEG and PNG libraries from pkgsrc, configure your

environment as follows so that the FLTK configure script can find them:

  export CPPFLAGS="-I/usr/pkg/include"

  export LDFLAGS="-L/usr/pkg/lib"

To install GNU autoconf from pkgsrc:

  cd /usr/pkgsrc/devel/autoconf

  bmake install

 3  HOW TO BUILD FLTK USING GCC

================================

 3.1  Downloading and Unpacking

--------------------------------

Download FLTK from here:

  http://www.fltk.org/software.php

If you are familiar with "subversion" and like to stay current with your 

version, you will find the subversion access parameters at the bottom of that 

page. Unpack FLTK into a convenient location. I like to have everything in my 

dev directory:

  cd

  mkdir dev

  cd dev

  mv ~/Downloads/fltk-1.3.xxxx.tar.gz .

  tar xvfz fltk-1.3.xxxx.tar.gz

  cd fltk-1.3.xxxx

 3.2  Configuring FLTK

-----------------------

If you got FLTK via subversion then you need one extra step. Otherwise skip

over this part. Stay in your FLTK source-code directory and type the

following:

  NOCONFIGURE=1 ./autogen.sh

Now configure your FLTK installation:

  ./configure

ADVANCED: type "./configure --help" to get a complete list of optional 

configuration parameters. These should be pretty self-explanatory. Some

more details can be found in README. 

:END_ADVANCED

The configuration script will check your machine for the required resources

which you should have installed as described in the Prerequisites chapter.

Review the Configuration Summary, maybe take some notes.

 3.3  Building FLTK

--------------------

Now this is easy. Stay in your FLTK source-code directory and type: 

  make

The entire FLTK toolkit including many test programs will be built for you. No 

warnings should appear. If some do, please let the FLTK developer team know via

the mailing list or the bug reporting template at www.fltk.org .

Actually, as of Apr 13 2016, one or two warnings will show, mostly about

deprecated declarations. Please ignore them.

 3.4  Testing FLTK

-------------------

After a successful build, you can test FLTK's capabilities:

  test/demo

 3.5  Installing FLTK

----------------------

If you did not change any of the configuration settings, FLTK will be installed 

in "/usr/local/include" and "/usr/local/lib" by typing

  sudo make install

If you are using the KDE, GNOME or XFCE desktop environments and want to call

"fluid" from the desktop menu, you will need to install additional files and

icons under "/usr/share" by typing:

  sudo make install-desktop

It is possible to install FLTK without superuser privileges by changing the 

installation path to a location within the user account by adding the 

"--prefix=PREFIX" parameters to the "./configure" command.

 3.6  Creating new Projects

----------------------------

FLTK provides a neat script named "fltk-config" that can provide all the flags

needed to build FLTK applications using the same flags that were used to build

the library itself. Running "fltk-config" without arguments will print a list

of options. The easiest call to compile an FLTK application from a single

source file is:

  fltk-config --compile myProgram.cxx

"fltk-config" and "fluid" will be installed in "/usr/local/bin/" by default. I

recommend that you add it to the command search path.

 4  CREATING A NEW PROJECT IN CODE::BLOCKS

===========================================

Code::Blocks is a free and popular C++ IDE in the Linux world. It also runs on

OS X and MSWindows. Configured correctly, it can also cross-compile between

these platforms. This chapter focuses on creating a new FLTK project for Linux, 

assuming that FLTK 1.3 was previously built and installed in its default 

location from the command line.

If not done yet, install Code::Blocks as described in the Prerequisites chapter 

above, or download it from their web site. This description is based on 

version 10.05:

  http://www.codeblocks.org/

Start Code::Blocks. Select File > New > Project. In the "New from template"

dialog box, click on "FLTK project" and follow the instructions.

The default project supports basic fltk. If you would like to add support for

images, OpenGL, GLUT, or Forms, add the corresponding flags --use-images,

--use-gl, --use-glut, and --use-forms respectively.

The flags are located in the "Project Build Options" dialog. To change the

compiler flags, select your project in the tree view, then select the

"Compiler Settings" tab, then "Other Options" and add the flags to

`fltk-config --cxxflags` in front of the second "`".

The linker flags are located in the "Linker Settings" tab under "Other Linker

Options". Add the flags to `fltk-config --ldstaticflags` in front of the 

second "`".

CodeBlocks can be set up to use fluid to manage modules.

The following info is from mingodad@gmail.com posted on fltk.general 06/17/2013:

"""

    I have these settings in codeblocks on linux:

    Settings -> 

      Compiler and debugging settings ->

        Other settings -> 

	  Advanced options:

    -- Add an extension (in my case "fl")

    -- On command line macro:

		cd $file_dir;  fluid -c $file

    -- Generated files  (to be further compiled):

		$file_dir/$file_name.cxx

		$file_dir/$file_name.h

    Settings -> Environment -> Files extension handling :

		Wildcard : *.fl

		To open file: Launch an external program

		External program: fluid

    With that I can double click on any fluid file I include on a project

    and it opens with fluid. When I press "run" or "build" codeblocks

    calls fluid to generate the c++ files and compiles if needed.

"""

 5  DOCUMENT HISTORY

=====================

Oct 30 2010 - matt: added Code::Blocks chapter

Oct 28 2010 - matt: restructured entire document and verified instructions

Nov 14 2010 - duncan: added install-desktop

Jun 17 2013 - erco: added mingodad's CodeBlocks/Fluid recommendations