Compiling

Compiling BRL-CAD

BRL-CAD source files contain an INSTALL file with general instructions. This page contains simplified tips for building quickly.

Obtain Dev Tools

If you downloaded the virtual machine disk image, YOU DON'T NEED TO INSTALL ANYTHING ELSE. Skip this step.

BRL-CAD uses the CMake build system and will compile with most compilers, so first up is to download and install it. If needed, compiling from their source distribution is actually very easy.

If you're on some other Debian/Ubuntu system, you can install pretty much everything you might want with aptitude:

aptitude install build-essential make cmake
aptitude install sed byacc flex xsltproc
aptitude install libncursesw5-dev libfontconfig-dev 
aptitude install xserver-xorg-dev
aptitude install libx11-dev libxi-dev libxt-dev libxau-dev libxext-dev libxmu-dev libxmu-headers
aptitude install libtnt-dev libpng12-dev zlib1g-dev libsm-dev tcl8.5-dev tk8.5-dev itcl3-dev

If you're on a Mac or Windows, you just need to install CMake and developer tools.

Download BRL-CAD

If you downloaded the virtual machine disk image, WE ALREADY DID THIS FOR YOU. See the brlcad.svn directory.

Release sources may be obtained from Sourceforge or directory from Subversion:

svn checkout https://brlcad.svn.sourceforge.net/svnroot/brlcad/brlcad/trunk brlcad
cd brlcad

Configure

Next, we set up a build directory and configure our compilation. BRL-CAD adhere's to a high conformance standard and considers most warnings as errors, so we turn off that strict behavior just so the build doesn't halt on trivialities.

We could add -DCMAKE_BUILD_TYPE=Release to get an optimized build or -DCMAKE_BUILD_TYPE=Debug to get one better suited for development work.

mkdir .build
cd .build
cmake .. -DBRLCAD_ENABLE_STRICT=OFF

Compile

Compilation will usually take anywhere from a couple minutes to an hour depending on your hardware. If you had a quad-core CPU, you might run '"make -j4" to request compiling in parallel.

make
make test

We run make test to see if all went well. If the build fails, it can be helpful to run make again capturing output to a log file. E.g., make > build.log 2>&1

If you run into trouble and 'make' fails, rerun cmake:

cmake -DBRLCAD_BUNDLED_LIBS=ON -DBRLCAD_ENABLE_STRICT=OFF .

Install

Depending on the version of sources you start with, BRL-CAD should install into /usr/brlcad/SUBDIR where SUBDIR is rel-VERSION or dev-VERSION.

sudo make install
ls -la /usr/brlcad
/usr/brlcad/*/bin/mged

Quick test

You don't have to install, though, and can just run binaries that are in the brlcad/.build/bin directory.

bin/benchmark
bin/mged

That's it! If you have a Release compile, you can submit your benchmark results to benchmark at brlcad dot org. Be sure to check out the extensive Documentation and Main_Page for tutorials and Contributor Quickies for ways to get involved!