Building from source

Getting the source

Either download the source from the [releases] (https://github.com/seqan/lambda/releases) page as lambda-vX.Y.Z.tar.gz or check out the master branch with git:

% git clone https://github.com/seqan/lambda.git

The latest master branch is not always guaranteed to build, although I do my best to prevent breakage.

Build requirements

• platforms: 64-bit Linux, 64-bit FreeBSD, 64-bit MacOS X
• compilers: only GCC >= 4.9.1 is supported right now!
• cmake >= 2.8.2

Other platforms are currently not a priority, but I do accept patches if they don't break anything else.

Build instructions

% tar xzf lambda-vX.Y.Z.tar.gz
% mkdir -p lambda-build/release
% cd lambda-build/release
% cmake ../../lambda-vX.Y.Z
% make -j2

Please be aware that due to excessive use of templating and compile-time optimizations the build might take well over 10min. If your most recent version of GCC is not the default, you have to give it the path with -DCMAKE_C_COMPILER=/path/to/gcc -DCMAKE_CXX_COMPILER=/path/to/g++.

Build options

As of version 0.9.0 Lambda has the following options:

NAME	description	default
LAMBDA_FASTBUILD	Setting this is useful for debugging, because the build will be faster. Only BLASTP and BLASTX and only Blosum62 scoring will be supported.	off
LAMBDA_NATIVE_BUILD	Deactivating this will disable CPU-specific optimization, but in return your binary will work on different hardware than the one you are building from.	on
LAMBDA_STATIC_BUILD	Activate to include all libs in the binary. This will result in a bigger binary but in return work on different software than the one you are building from (e.g. compiler and OS version).	off

To build portable binaries of Lambda, deactivate native builds and activate static builds, i.e. pass -DLAMBDA_NATIVE_BUILD=0 -DLAMBDA_STATIC_BUILD=1 to cmake.