Commit 3c76bd18 authored by Roland Levillain's avatar Roland Levillain
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INSTALL: Update.

git-svn-id: 4aad255d-cdde-0310-9447-f3009e2ae8c0
parent ed830871
2009-07-13 Roland Levillain <>
* INSTALL: Update.
2009-07-13 Roland Levillain <>
* README: Update.
Installation Notes
This file contains information about the installation process of Olena.
You can read the `README' file for general information about Olena.
1.1 Required software
Required Software
Here is a non-exhaustive list of required software required to build
Olena successfully.
* to compile the user examples:
- a POSIX shell, like Bash
- a decent C++ compiler, like GNU C++
- a `make' utility, like GNU or BSD `make'
- a `make' utility, like GNU `make'
* to compile the documentation:
* to (re)compile the documentation:
- a LaTeX distribution
- the `listings' TeX package
- the utility `convert' from ImageMagick
- GNU Autogen
- `hevea', a TeX to HTML conversion tool
- the `texinfo' utilities from GNU
- latex2html
- latex2html
* to use various image types:
- libMagick++
- libTiff
- Magick++
- libGdcm
- libtiff
* to develop _in_ Olena:
- GNU Autotools (Autoconf 2.54, Automake 1.7)
* to develop _in_ Swilena (Python Bindings):
- Swig
* to develop _within_ Olena:
- GNU Autoconf 2.61
1.2 Configuration
- GNU Automake 1.10
- GNU Libtool 1.5.22
* to develop _within_ Swilena:
- Python
In order to prepare the build process, you need to configure the source
......@@ -55,24 +68,24 @@ tree.
Assuming your Olena distribution is uncompressed in directory
`olena-1.0', follow these steps:
$ mkdir ../build
$ cd ../build && ../olena-1.0/configure CXXFLAGS=''
*Note:* take care to set `CXXFLAGS' always when running `configure',
for the default value computed by `configure' may yield to compilation
issues (conflicts between optimization and debugging).
% cd olena-1.0
% mkdir _build
% cd _build
% ../configure
The build process can be altered by a number of options you can pass
to the `configure' script. The following sections describe them.
Additionally, if you are an Olena maintainer (a person who runs
`make distcheck'), _prefer setting `CXXFLAGS' as an environment
variable_: the flags given on the commandline to `configure' are not
propagated to recursive runs by `make distcheck'.
variable_: the flags given on the command line to `configure' are not
propagated to recursive runs by `make distcheck'. Or better: use the
environment CONFIG_SITE to set up a configuration environment (see
Autoconf's manual).
1.2.1 Installation path
Installation Path
By default, Olena is installed in the standard "local" directory of
your system. This is usually `/usr/local' under Unix.
......@@ -82,8 +95,8 @@ your system. This is usually `/usr/local' under Unix.
--prefix=<installation prefix>
1.2.2 Compiler selection and compilation flags
Compiler Selection and Compilation Flags
By default, `configure' will try to use the first C++ compiler it
encounters on your system. If `CXX' is not set, it will look, in order,
......@@ -106,151 +119,89 @@ for:
You can override the detection system by passing your favorite
compiler name to `configure', as follows:
$ .../configure CXX=<your-favorite-C++-compiler>
% ../configure CXX=<your-favorite-C++-compiler>
As an alternative, you can also set the environment variable `CXX'.
For some compilers (GNU g++ and Intel's icpc to some extent) ,
`configure' will use default CXXFLAGS. You can override the default
C++ flags by giving `configure' your selection of flags:
For most compilers, `configure' will select debugging and minimal
optimization (`-g -O2' with g++), which is wrong. You should override
the default C++ flags by giving `configure' your selection of flags:
$ .../configure CXXFLAGS="<your-favorite-flags>"
This is especially useful to solve a number of problems, described
in the following section.
1.3 Using `CXXFLAGS' to solve compilation problems
% ../configure CXXFLAGS="<your-favorite-flags>"
1.3.1 Olena needs C99
While Olena is written in C++, it uses a number of features (math
functions) from ISO C99. However most C++ compilers do not enable these
features by default. If your compilation fails with (e.g.) undefined
references to `roundf', but you know what flags can activate these
functions, add them to `CXXFLAGS'.
In case your system does not provide some math functions necessary
for Olena, you can force the use of a local, overloaded, implementation,
by using macros of the form `-DOLN_NEED_xxx', where `xxx' stands for
the name of the missing function, in uppercase. For example, on Darwin
(MacOS X), the flag `-DOLN_NEED_SQRTF' is needed (but `configure'
should add it anyway).
1.3.2 Olena needs deep template recursion
The C++ design patterns used in Olena use deep template nesting and
recursion. However, the C++ standard specifies that C++ compiler need
only handle template recursion up to 19 levels, which is insufficient
for Olena. This is a problem for GCC 2.95 and probably other compilers.
Hopefully, `configure' tries to fix this automatically by adding
`-ftemplate-depth-NN' when necessary, but other compilers than GCC may
need other flags. If you know these flags, add them to `CXXFLAGS'.
1.3.3 Debugging flags
All over the code, many sanity checks are enabled by default. They are
convenient since they make sure nothing wrong is passed to the functions.
However, once the program is stable they may not be necessary anymore.
Passing `-DNDEBUG' to the CXXFLAGS disable many sanity checks, while providing
*high* performance improvement.
1.3.4 Speeding up the compilation
When using GCC, by default separate phases of the compilation of each
file are run sequentially (compilation then assembly). Using `-pipe' in
`CXXFLAGS' allows GCC to fork processes and run compilation phases in
parallel, which brings a compilation speedup on multiprocessor machines
or machines with slow storage access (when using `-pipe', no
intermediary data is saved).
Additional Components
1.4 Speeding up the configuration process
In additional to Milena, several build targets can be enabled. These
parts are called "components", and you can obtain a list of them by
`configure' can manage a cache of autodetected features and values.
This cache speeds up `configure' runs and can be activated with the
`-C' option.
% ../configure --help
_NOTE_: the effects of many of the flags passed to `configure' are
stored in the cache. If you decide to re-run `configure' with other
flags, delete the `config.cache' file first.
See README for more information on additional components.
1.5 Elidable components
Several build targets can be disabled, in case you are only interested
in "parts" of the full Olena distribution.
Once your build directory is `configure'd, you can run
The elidable parts are so-called "components", and you can obtain a
list of them by running:
% make
$ .../configure --help
to recursively build all the selected components.
1.6 Building
Additionally, you can build and run the test suite with:
Once your build directory is `configure'd, you can run
% make check
$ make
However, this process is time- and memory- consuming, and you probably
do not need it except if you are developing/debugging Olena.
to recursively build all selected components.
Compiler Notes
Additionally, you can build and run the testsuite and demonstration
programs with:
Olena has been tested on the following configurations:
$ make check
System Compiler
GNU/Linux on IA-32 g++ (GNU GCC) 3.3, 3.4, 4.0, 4.1, 4.2 and 4.3
GNU/Linux on IA-32 icpc (Intel C/C++ Compiler) 10.1 and 11.0
GNU/Linux on AMD64/Intel 64 g++ (GNU GCC) 4.1
Mac OS X (10.5) on IA-32 g++ (GNU GCC) 4.0.1
However, this process is very time- and memory- consuming.
1.7 Compiler notes
To install the Olena headers and additional files on your system, run:
Olena has been tested on the following configurations :
% make install
System Compiler
Linux g++ 3.3, 3.4, 4.0, 4.1, 4.2
icc 10.1, 11.0
Linux-64 g++ 4.1
MacOS X g++ 4.0.1
from the build directory.
If not overridden with `--prefix', this will install:
2.1 Installing
* the headers in `/usr/local/include/mln/',
To install the Olena headers and additional files on your system, run:
* some applications and tools in `/usr/local/bin/',
$ make install
* sample images and meshes in `/usr/local/share/olena/images/',
from the build directory.
* the documentation in `/usr/local/share/doc/olena/`
If not overridden with `--prefix' (see the BUILD file) , this will
And optionally:
* the headers in `/usr/local/include/mln',
* Swilena's Python bindings in `/usr/local/lib/python2.x/site-packages/',
* sample images in `/usr/local/share/milena',
You can later remove Olena from your system by running
$ make uninstall
from the build directory.
% make uninstall
from the build directory (if you have kept it). We recommend the use
of GNU Stow (or any similar program) during the installation of Olena,
to make the uninstallation of Olena easier.
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