Getting Lazarus

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Download and install Lazarus release version

From SourceForge

Binary releases for various platforms are available via the Lazarus Sourceforge download area.

For people who are blocked by SF, the Lazarus releases from Sourceforge are mirrored at:

Specific for platform

Get Lazarus for Windows - use the Sourceforge link above.

Get Lazarus for ReactOS

Get Lazarus for Ubuntu

Get Lazarus for Fedora

Get Lazarus for Suse

Get Lazarus for Mandriva

Get Lazarus for Scientific Linux

Get Lazarus for Raspberry Pi (Raspbian)

Get Lazarus for Mac

Lazarus on Solaris

Getting SVN client

TortoiseSVN client

TortoiseSVN Client is for Windows only. You may download it from

This page demonstrates how to download and update Lazarus SVN source, but it can be used for FPC source in the same way.

Other clients

A SVN command line client is available from the official SVN website for many platforms.

On Linux, it is recommended to install subversion using the package management system offered by your distribution. For example:

sudo apt-get install subversion

Getting Lazarus SVN development version

Using the command line

Note that various alternative instructions for svn in this wiki are now incorrect, while the below svn instructions are currently (2017) working.

To get Lazarus for the first time:

Open a terminal/command prompt, change to the directory you wish the Lazarus folder to be created in and type:

 svn co lazarus

To update Lazarus sources:

Open a terminal/command prompt, change to the lazarus directory and type:

 svn update

For compiling see here.

Alternative URLs

Sometimes the URL of repository given above does not work, because between the svn server there is a http-proxy server. That server usually claims to be a 'transparent' proxy, but still doesn't pass your svn commands correctly to the server.

The repository is mirrored on sourceforge with a delay of 3 minutes using svnsync. The sourceforge repository uses the https protocol. Proxy servers usually don't interfere with that protocol. You can check out form sourceforge using the following command

svn co lazarus

You can also use the fixes branch of the latest Lazarus release. At the moment of writing it is 1.8.

svn co lazarus_1_8

Later please replace the last numeric part with the latest version numbers.

If you own the proxy server, or are friends with the person who does, there are details of setting up a proxy to pass svn commands here: This contains an example for squid. Remember to set up the client to use the proxy ! (For TortoiseSVN, see settings/network).


There are scripts for Windows and Linux to automate downloading and building Lazarus: Scripts for Lazarus

There is also a tool built with FPC/Lazarus that does this for you; see fpcup or even more convenient: fpcUPdeluxe from github.

Compiling and running Lazarus

See Installing Lazarus - a detailed installation guide.

Using the command-line

Lazarus is shipped with an autogenerated Makefile (of the name "Makefile") for the gnu "make" utility.


Warning: If you also have Embarcadero (or Borland) tools installed, their "make" might conflict with gnu "make". In that case delete or rename the conflicting binary, or remove its directory from Windows PATH.

make allows you to compile Lazarus from command-line easily. You need to have fpc and fpc-packages installed and configured first.

To compile go to Lazarus directory in your terminal and type


This should rebuild LCL and Lazarus IDE with basic packages installed.

Another useful command is

 make bigide

which adds the same packages that the release version has.

Then you can run Lazarus from within the same source directory with command "lazarus" (in Unix systems "./lazarus").

In case you want to run several versions, you can direct lazarus to use use specific configuration directories via the --pcp option, e.g. :

lazarus --pcp=/home/YOU/myLaz19

Make targets

make help

To see a list of available targets for make type make help. Note: "make help" exists since 1.0. Here is the output of "make help":

make help 
 Main targets
                  Without any target, target 'all' will be invoked.
   all            build all needed, i.e. minimal IDE, lazbuild, startlazarus.
   clean          deletes files that 'bigide' creates. It does not clean up all possible
                  targets. Clean other target: make clean LCL_PLATFORM=qt
   distclean      Clean all targets and common leftovers.
   lazbuild       build lazbuild and lcl with nogui widgetset
   bigide         as all, except that the IDE is built with a lot of extra packages
   useride        calls lazbuild to build an IDE with your active profile, requires lazbuild
   install        installs Lazarus under /usr/local/share/lazarus
                  You can change the directory by appending INSTALL_PREFIX=/some/path
 Sub targets
   registration   build package FCL
   lazutils       build package LazUtils, requires registration
   codetools      build package CodeTools, requires lazutils
   lcl            build package LCLBase and LCL, requires lazutils
   tools          build lazres, svn2revisioninc, updatepofiles, lrstolfm,
                  requires LCL with nogui widgetset
   basecomponents build debuggerintf, lazdebuggergdbmi, lazcontrols, synedit, ideintf
                  for the LCL_PLATFORM, requires lcl
   bigidecomponents build many extra packages for the LCL_PLATFORM, requires basecomponents
   lhelp          build lhelp, requires bigidecomponents
   starter        build startlazarus, requires basecomponents
   examples       build basic examples, requires basecomponents                                                                                                        
                  Note: There are more examples having their own directory                                                                                             
   PP=/path/to/fpc        use another compiler                                                                                                                         
   USESVN2REVISIONINC=0   do not update ide/                                                                                                               
   INSTALL_PREFIX=/usr    used by 'install' as path prefix                                                                                                             
   FPC_DIR=/usr/share/fpcsrc/3.0.4   used by fpcmake when regenerating Makefiles                                                                                       
   OPT='-vwnbq -gh'       append these options when calling the compiler                                                                                               
 Usage examples:                                                                                                                                                       
 Update svn and build a minimal IDE, startlazarus and lazbuild:                                                                                                      
   make clean                                                                                                                                                          
   svn up                                                                                                                                                               
   make clean all                                                                                                                                                      
 Note: You can start lazarus with 'startlazarus'                                                                                                                       
 Note: Use the IDE or lazbuild to compile your projects/packages.                                                                                                      
 Update svn and build an IDE with your last set of packages:                                                                                                         
   make clean                                                                                                                                                          
   svn up                                                                                                                                                              
   make clean lazbuild useride                                                                                                                                         
 Clean up:                                                                                                                                                             
  There is no command to clean up a svn repository completely, but                                                                                                     
  you can use the following command under Linux/OS X:                                                                                                                  
  svn status | grep '\?' | sed -e 's/\? *//' | xargs rm -r                                                                                                             
  Another possibility is to create a clean copy via the svn export command.                                                                                            
   Note: You can use Lazarus without installing. Just start the lazarus executable.                                                                                    
   1. Build Lazarus as normal user with one of the above commands.                                                                                                     
   2. Install as root into /usr                                                                                                                                        
          sudo make install
      This installs startlazarus, lazarus-ide, lazbuild under /usr/bin
      and copies the whole lazarus source directory to /usr/share/lazarus

Make parameters

There are additional parameters which can be used to make Lazarus. See a fully working example above.

  • OPT=%compiler_switches

the %compiler_switches is passed to each fpc call. The option is useful for specifying defines

For example:

 make bigide OPT="-dNoGdkPixBufLib -gw2" 

makes LCL and ide with NoGdkPixBufLib defined and dwarf2 debug info.

  • LCL_PLATFORM=%platform

%platform is the target widgetset. It can be win32,wince,gtk,gtk2,qt,carbon,cocoa,customdrawn.

For example:

 make LCL_PLATFORM=gtk2

Rebuilds LCL and IDE for gtk2 widgetset

  • FPC=%compiler_path


  • PP=%compiler_path

%compiler_path is the path+filename to a custom compiler binary you want to build the target with.

such as:

make FPC="~/Pfad/fpc"

Development versions from Git

There is a Git mirror of the official SubVersion repository being maintained on GitHub. This mirror gets sync'ed every 15 minutes with the SubVersion repository. For more information on getting Git and cloning the Lazarus repository, follow this link: Git Mirrors. You can also use git directly with SubVersion server using git-svn link. See Lazarus git-svn for details.

Browse the Source Repository with a Web Browser

The contents of the SVN archive can also be browsed with your web-browser through this viewcvs interface.

Lazarus Distributions

There are some unofficial sites where you can find Lazarus and Free Pascal too:

See also