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INSTALL
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System Requirements
===================
BCFtools and HTSlib depend on the zlib library <http://zlib.net>, the bzip2
library <http://bzip.org/> and liblzma <http://tukaani.org/xz/>. Building
them requires development files to be installed on the build machine;
note that some Linux distributions package these separately from the library
itself (see below).
The bzip2 and liblzma dependencies can be removed if full CRAM support
is not needed - see HTSlib's INSTALL file for details.
Packages for dpkg-based Linux distributions (Debian / Ubuntu) are:
zlib1g-dev
libbz2-dev
liblzma-dev
Packages for rpm or yum-based Linux distributions (RedHat / Fedora / CentOS)
are:
zlib-devel
bzip2-devel
xz-devel
To build BCFtools, you will need:
GNU make
C compiler (e.g. gcc or clang)
In addition, building the configure script requires:
autoheader
autoconf
Running the configure script uses awk, along with a number of
standard UNIX tools (cat, cp, grep, mv, rm, sed, among others). Almost
all installations will have these already.
Running the test harness (make test) uses:
bash
perl
Building Configure
==================
This step is only needed if configure.ac has been changed, or if configure
does not exist (for example, when building from a git clone). The
configure script and config.h.in can be built by running:
autoheader
autoconf
If you have a full GNU autotools install, you can alternatively run:
autoreconf
Warnings like "AC_CONFIG_SUBDIRS: you should use literals" can be ignored
or supressed using 'autoconf -Wno-syntax'.
Compilation
===========
'cd' to the bcftools directory containing the package's source and type:
./configure
make
This BCFtools release contains a copy of HTSlib which will be used to build
BCFtools. If you already have a system-installed HTSlib or another HTSlib
that you would prefer to build against, you can arrange this by using the
configure script's --with-htslib option. Use --with-htslib=DIR to point
to an HTSlib source tree or installation in DIR; or --with-htslib=system
to use a system-installed HTSlib.
Optional Compilation with Perl
==============================
The '-i' and '-e' options can take external perl scripts for a more
sophisticated filtering. This option can be enabled by supplying the
--enable-perl-filters option to configure before running make:
./configure --enable-perl-filters
Note that enabling this option changes the license from MIT to GPL
because bcftools need to be built with
perl -MExtUtils::Embed -e ccopts -e ldopts
Optional Compilation with GSL
=============================
The 'polysomy' command depends on the GNU Scientific Library (GSL) and is not
enabled by default. In order to compile it, supply the --enable-libgsl
option to configure before running make:
./configure --enable-libgsl
The GNU Scientific Library depends on the cblas library. The configure
script will look for both libcblas and libgslcblas, in that order. If
you have more than one version of cblas installed and want to override its
choice you can do this by using either --with-cblas=cblas or
--with-cblas=gslcblas.
Note that GSL is distributed under the GNU General Public License (GPL).
When --enable-libgsl is used to compile bcftools, the resulting program
will also be GPL licensed. If you want to distribute the program, you MUST
do so under terms compatible with that license. A copy of the GPL is included
in the LICENSE file, or can be downloaded from
<http://www.gnu.org/copyleft/gpl.html>.
In the default compilation mode the program is dual licensed and you may
choose to be licensed under the terms of the MIT/Expat license or the
GNU General Public License (GPL).
Information on the GNU Scientific Library, including the rationale for
its choice of license can be found at <https://www.gnu.org/software/gsl/>.
Installation
============
Type 'make install' to install the bcftools executable and associated scripts
and a manual page. The default is to install in /usr/local. This can be
changed by using the configure script's --prefix option:
./configure --prefix=/path/to/install/dir
The install target also understands DESTDIR and the other usual installation
directory variables.
The bgzip and tabix utilities are provided by HTSlib. If you have not also
installed HTSlib separately, you may wish to install these utilities by hand
by copying bcftools-1.x/htslib-1.x/{bgzip,tabix} to the same bin directory
to which you have installed bcftools et al.