Compile on MacOS: Difference between revisions

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== Installing the Dependencies == <!--T:82-->
== Install the Dependencies == <!--T:82-->
FreeCAD maintains a Homebrew 'tap' which installs the required formulas and dependencies. Issue the following brew commands in your terminal.
FreeCAD maintains a Homebrew 'tap' which installs the required formulas and dependencies. Issue the following brew commands in your terminal.



Revision as of 02:37, 17 July 2017

This page describes how to compile the latest FreeCAD source on macOS X. Latest means the most recent commit to the master branch of the FreeCAD github repository.

This page serves as a quick start, and is not intended to be comprehensive with regard to describing all the available build options.

If you just want to evaluate the latest pre-release build of FreeCAD, you can download pre-built binaries from here.

Prerequisites

The following software must be installed.

Homebrew Package Manager

Homebrew is a command line based package manager for macOS. The Homebrew main page provides a command line that you simply paste into a terminal window.

CMake

CMake is build tool that generates a build configuration based on variables you specify. You then issue the 'make' command to actually build that configuration. The command-line version of CMake is automatically installed as part of the Homebrew installation, above. If you prefer to use a GUI version of CMake, you can download it from here.


Install the Dependencies

FreeCAD maintains a Homebrew 'tap' which installs the required formulas and dependencies. Issue the following brew commands in your terminal.

.

brew tap homebrew/science
brew tap freecad/freecad
brew install eigen
brew install --only-dependencies freecad --with-packaging-utils
brew install --only-dependencies freecad --with-packaging-utils

Notes:

  1. The duplicate 'brew install' command for freecad dependencies is intentional. There is currently a bug where some of the dependencies are not installed on the first run.
  2. 'brew install' may take quite a while, so you may want go grab a beverage. :-)

Getting the source

In the following instructions, the source and build folders are created side-by-side under

/Users/username/FreeCAD

but you can use whatever folders you want.

mkdir ~/FreeCAD
cd ~/FreeCAD

The following command will clone the FreeCAD git repository into a directory called FreeCAD-git.

git clone https://github.com/FreeCAD/FreeCAD FreeCAD-git

Building FreeCAD

Create the build folder and move into it.

mkdir ~/FreeCAD/build
cd  ~/FreeCAD/build

Next, we will run CMake to generate the build configuration. Several options must be passed to CMake. The following table describes the options and gives some background.

CMake Options

Name Value Notes
CMAKE_BUILD_TYPE Release (STRING) Release or Debug. Debug is generally used for developer-level testing but may also be required for user-level testing and troubleshooting.
BUILD_QT5 1 (BOOL) Required to build with Qt5.
CMAKE_PREFIX_PATH "/usr/local/Cellar/qt@5.6/5.6.2/lib/cmake" (PATH) Required to build with Qt5.
FREECAD_CREATE_MAC_APP 1 (BOOL) Create a FreeCAD.app bundle at the location specified in CMAKE_INSTALL_PREFIX, when the 'make install' command issued.
CMAKE_INSTALL_PREFIX "./.." (PATH) Path where you want to generate the FreeCAD.app bundle.
FREECAD_USE_EXTERNAL_KDL 1 (BOOL) Required.
BUILD_FEM_NETGEN 1 (BOOL) Required.

CMake GUI

Open the CMake app, and fill in the source and build folder fields. In this example, it would be /Users/username/FreeCAD/FreeCAD-git for the source, and /Users/username/FreeCAD/build for the build folder.

Next, click the Configure button to populate the list of configuration options. This will display a dialog asking you to specify what generator to use. Leave it at the default Unix Makefiles. Configuring will fail the first time because there are some options that need to be changed. Note: You will need to check the Advanced checkbox to get all of the options.

Set options from the table above, then click Configure again and then Generate.

CMake command line

Enter the following in the terminal.

$cd ~/FreeCAD/build
$cmake \
  -DCMAKE_BUILD_TYPE="Release"   \
  -DBUILD_QT5=1                  \
  -DCMAKE_PREFIX_PATH="/usr/local/Cellar/qt@5.6/5.6.2/lib/cmake"  \
  -DFREECAD_USE_EXTERNAL_KDL=1   \
  -DBUILD_FEM_NETGEN=1           \
  -DFREECAD_CREATE_MAC_APP=1     \
  -DCMAKE_INSTALL_PREFIX="./.."  \
  ../FreeCAD-git/

Make

Finally, from a terminal run make to compile FreeCAD.

cd ~/FreeCAD/build
make –j5 install

The -j option specifies how many make processes to run at once. One plus the number of CPU cores is usually a good number to use. However, if compiling fails for some reason, it is useful to rerun make without the -j option, so that you can see exactly where the error occurred.

See also Compiling - Speeding up.

If make finishes without any errors, you can now launch FreeCAD, by double clicking the executable in the Finder.

Updating

FreeCAD development happens fast; every day or so there are bug fixes or new features. To get the latest changes, use git to update the source directory (see Source code management), then re-run the CMake and make steps above. It is not usually necessary to start with a clean build directory in this case, and subsequent compiles will generally go much faster than the first one.

Notes on building with Qt4

FreeCAD has transitioned from Qt 4 to Qt 5. If you need to build with Qt4, the following additional steps are required.

  1. Append '--with-qt4' to the 'brew install' command.
  2. Do not specify BUILD_QT5 CMake option.
  3. Do not specify CMAKE_PREFIX_PATH CMake option

Troubleshooting

Fortran

"No CMAKE_Fortran_COMPILER could be found." during configuration - Older versions of FreeCAD will need a fortran compiler installed. With Homebrew, do "brew install gcc" and try configuring again, giving cmake the path to Fortran ie -DCMAKE_Fortran_COMPILER=/opt/local/bin/gfortran-mp-4.9 . Or, preferably use a more current version of FreeCAD source!

OpenGL

See OpenGL on MacOS for OpenGL issues when Qt 4.8 and earlier are used on MacOS.

FreeType

When using CMake versions older than 3.1.0, it's necessary to set CMake variable FREETYPE_INCLUDE_DIR_freetype2 manually, eg /usr/local/include/freetype2

CompileOnUnix
Compiling (Speeding up)