This file is a complement to "INSTALL", which contains instructions
that are specific to Linux.


Static linking for Linux
========================

The most simple way of building Orthanc under Linux consists in
statically linking against all the third-party dependencies. In this
case, the system-wide libraries will not be used. The build tool
(CMake) will download the sources of all the required packages and
automatically compile them.

This process should work on any Linux distribution, provided that a
C/C++ compiler ("build-essential" in Debian-based systems), the Python
interpreter, CMake, the "unzip" system tool, and the development
package for libuuid ("uuid-dev" in Debian) are installed.


We now make the assumption that Orthanc source code is placed in the
folder "~/Orthanc" and that the binaries will be compiled to
"~/OrthancBuild". To build binaries with debug information:

# cd ~/OrthancBuild
# cmake -DSTATIC_BUILD=ON -DCMAKE_BUILD_TYPE=Debug ~/Orthanc
# make
# make doc


To build a release version:

# cd ~/OrthancBuild
# cmake -DSTATIC_BUILD=ON -DCMAKE_BUILD_TYPE=Release ~/Orthanc
# make
# make doc


Note 1- When the "STATIC_BUILD" option is set to "ON", the build tool
will not ask you the permission to download packages from the
Internet.

Note 2- If the development package of libuuid was not installed when
first invoking cmake, you will have to manually remove the build
directory ("rm -rf ~/OrthancBuild") after installing this package,
then run cmake again.

Note 3- To build the documentation, you will have to install doxyen.


Use system-wide libraries under Linux
=====================================

Under Linux, by default, Orthanc links against the shared libraries of
your system (the "STATIC_BUILD" option is set to "OFF"). This greatly
speeds up the compilation. This is also required when building
packages for Linux distributions. Because using system libraries is
the default behavior, you just have to use:

# cd ~/OrthancBuild
# cmake -DCMAKE_BUILD_TYPE=Debug ~/Orthanc
# make

Note that to build the documentation, you will have to install doxyen.

However, on some Linux distributions, it is still required to download
and static link against some third-party dependencies, e.g. when the
system-wide library is not shipped or is outdated. Because of
difference in the packaging of the various Linux distribution, it is
also sometimes required to fine-tune some options.

You will find below build instructions for specific Linux
distributions. Distributions tagged by "SUPPORTED" are tested by
Sébastien Jodogne. Distributions tagged by "CONTRIBUTED" come from
Orthanc users.


SUPPORTED - Debian Jessie/Sid
-----------------------------

# sudo apt-get install build-essential unzip cmake mercurial \
       	       	       uuid-dev libcurl4-openssl-dev liblua5.1-0-dev \
       	       	       libgoogle-glog-dev libgtest-dev libpng-dev \
       	       	       libsqlite3-dev libssl-dev zlib1g-dev libdcmtk2-dev \
                       libboost-all-dev libwrap0-dev libjsoncpp-dev libpugixml-dev

# cmake -DALLOW_DOWNLOADS=ON \
	-DUSE_SYSTEM_MONGOOSE=OFF \
        -DUSE_GTEST_DEBIAN_SOURCE_PACKAGE=ON \
        -DDCMTK_LIBRARIES=dcmjpls \
	~/Orthanc

Note: Have also a look at the official package:
http://anonscm.debian.org/viewvc/debian-med/trunk/packages/orthanc/trunk/debian/


SUPPORTED - Ubuntu 12.04.5 LTS
------------------------------

# sudo apt-get install build-essential unzip cmake mercurial \
       	       	       uuid-dev libcurl4-openssl-dev liblua5.1-0-dev \
       	       	       libgtest-dev libpng-dev libsqlite3-dev libssl-dev \
		       zlib1g-dev libdcmtk2-dev libboost1.48-all-dev libwrap0-dev \
                       libcharls-dev

# cmake "-DDCMTK_LIBRARIES=boost_locale;CharLS;dcmjpls;wrap;oflog" \
        -DALLOW_DOWNLOADS=ON \
	-DUSE_SYSTEM_MONGOOSE=OFF \
	-DUSE_SYSTEM_JSONCPP=OFF \
	-DUSE_SYSTEM_GOOGLE_LOG=OFF \
	-DUSE_SYSTEM_PUGIXML=OFF \
        -DUSE_GTEST_DEBIAN_SOURCE_PACKAGE=ON \
	~/Orthanc



SUPPORTED - Ubuntu 14.04 LTS
----------------------------

# cmake -DALLOW_DOWNLOADS=ON \
        -DUSE_GTEST_DEBIAN_SOURCE_PACKAGE=ON \
        -DUSE_SYSTEM_MONGOOSE=OFF \
        -DDCMTK_LIBRARIES=dcmjpls \
        ~/Orthanc



SUPPORTED - Fedora 20-22
------------------------

# sudo yum install unzip make automake gcc gcc-c++ python cmake \
                   boost-devel curl-devel dcmtk-devel glog-devel \
                   gtest-devel libpng-devel libsqlite3x-devel libuuid-devel \
                   mongoose-devel openssl-devel jsoncpp-devel lua-devel pugixml-devel

You will also have to install "gflags-devel" on Fedora 21&22:

# sudo yum install gflags-devel

# cmake  "-DDCMTK_LIBRARIES=CharLS" \
         -DSYSTEM_MONGOOSE_USE_CALLBACKS=OFF \
         ~/Orthanc
       
Note: Have also a look at the official package:
http://pkgs.fedoraproject.org/cgit/orthanc.git/tree/?h=f18



SUPPORTED - FreeBSD 10.1
------------------------

# pkg install jsoncpp pugixml lua51 curl googletest dcmtk cmake \
              e2fsprogs-libuuid glog boost-libs sqlite3 python libiconv

# cmake -DALLOW_DOWNLOADS=ON \
        -DUSE_SYSTEM_MONGOOSE=OFF \
        -DDCMTK_LIBRARIES="dcmdsig;charls;dcmjpls" \
	~/Orthanc



Other Linux distributions?
--------------------------

Please send us your build instructions (by a mail to
s.jodogne@gmail.com)!

You can find build instructions for Orthanc up to 0.7.0 on the
following Wiki page:
https://code.google.com/p/orthanc/wiki/LinuxCompilationUpTo070

These instructions will not work as such beyond Orthanc 0.7.0, but
they might give indications.




Using ccache
============

Under Linux, you also have the opportunity to use "ccache" to
dramatically decrease the compilation time when rebuilding
Orthanc. This is especially useful for developers. To this end, you
would use:

# CC="ccache gcc" CXX="ccache g++" cmake ~/Orthanc [Other Options]