Master [![build status](https://gitlab.com/gnutls/gnutls/badges/master/build.svg)](https://gitlab.com/gnutls/gnutls/commits/master) 3.4.x [![build status](https://gitlab.com/gnutls/gnutls/badges/gnutls_3_4_x/build.svg)](https://gitlab.com/gnutls/gnutls/commits/gnutls_3_4_x) 3.3.x [![build status](https://gitlab.com/gnutls/gnutls/badges/gnutls_3_3_x/build.svg)](https://gitlab.com/gnutls/gnutls/commits/gnutls_3_3_x) # GnuTLS -- Information for developers GnuTLS implements the TLS/SSL (Transport Layer Security aka Secure Sockets Layer) protocol. GnuTLS is a GNU project. Additional information can be found at . This file contains instructions for developers and advanced users that want to build from version controlled sources. See [INSTALL.md](INSTALL.md) for building released versions. We require several tools to check out and build the software, including: * [Make](http://www.gnu.org/software/make/) * [Automake](http://www.gnu.org/software/automake/) (use 1.11.3 or later) * [Autoconf](http://www.gnu.org/software/autoconf/) * [Autogen](http://www.gnu.org/software/autogen/) (use 5.16 or later) * [Libtool](http://www.gnu.org/software/libtool/) * [Gettext](http://www.gnu.org/software/gettext/) * [Texinfo](http://www.gnu.org/software/texinfo/) * [Tar](http://www.gnu.org/software/tar/) * [Gzip](http://www.gnu.org/software/gzip/) * [Texlive & epsf](http://www.tug.org/texlive/) (for PDF manual) * [GTK-DOC](http://www.gtk.org/gtk-doc/) (for API manual) * [Git](http://git-scm.com/) * [Perl](http://www.cpan.org/) * [Nettle](http://www.lysator.liu.se/~nisse/nettle/) * [Guile](http://www.gnu.org/software/guile/) * [p11-kit](http://p11-glue.freedesktop.org/p11-kit.html) * [gperf](http://www.gnu.org/software/gperf/) * [libtasn1](https://www.gnu.org/software/libtasn1/) (optional) * [Libidn](http://www.gnu.org/software/libidn/) (optional, for internationalization of DNS) * [AWK](http://www.gnu.org/software/awk/) (for make dist, pmccabe2html) * [git2cl](http://savannah.nongnu.org/projects/git2cl/) (for make dist, ChangeLog) * [bison](http://www.gnu.org/software/bison) (for datetime parser in certtool) * [libunbound](https://unbound.net/) (for DANE support) * [abi-compliance-checker](http://ispras.linuxbase.org/index.php/ABI_compliance_checker) (for make dist) The required software is typically distributed with your operating system, and the instructions for installing them differ. Here are some hints: Debian/Ubuntu: ``` apt-get install -y git-core autoconf libtool gettext autopoint apt-get install -y automake autogen nettle-dev libp11-kit-dev libtspi-dev apt-get install -y guile-2.0-dev libtasn1-6-dev libidn11-dev gawk gperf git2cl apt-get install -y libunbound-dev dns-root-data bison help2man gtk-doc-tools apt-get install -y texinfo texlive texlive-generic-recommended texlive-extra-utils ``` Fedora/RHEL: ``` yum install -y git autoconf libtool gettext-devel automake autogen yum install -y nettle-devel p11-kit-devel autogen-libopts-devel yum install -y trousers-devel guile-devel libtasn1-devel libidn-devel gawk gperf git2cl yum install -y unbound-devel bison help2man gtk-doc texinfo texlive ``` Sometimes, you may need to install more recent versions of Automake, Nettle, P11-kit and Autogen, which you will need to build from sources. Dependencies that are used during make check or make dist are listed below. Moreover, for basic interoperability testing you may want to install openssl and polarssl. * [Valgrind](http://valgrind.org/) (optional) * [Libasan](https://gcc.gnu.org//) (optional) * [datefudge](http://packages.debian.org/datefudge) (optional) * [nodejs](http://nodejs.org/) (needed for certain test cases) * [softhsm](http://www.opendnssec.org/softhsm/) (for testing smart card support) * [dieharder](http://www.phy.duke.edu/~rgb/General/dieharder.php) (for testing PRNG) * [lcov](http://linux-test-project.github.io/) (for code coverage) Debian/Ubuntu: ``` apt-get install -y valgrind libasan1 nodejs softhsm datefudge lcov apt-get install -y dieharder libpolarssl-runtime openssl abi-compliance-checker ``` Fedora/RHEL: ``` yum install -y valgrind libasan nodejs softhsm datefudge lcov yum install -y dieharder mbedtls-utils openssl abi-compliance-checker ``` To download the version controlled sources: ``` $ git clone https://gitlab.com/gnutls/gnutls.git $ cd gnutls $ git submodule update --init ``` The next step is to run autoreconf (etc) and then ./configure: ``` $ make bootstrap ``` When built this way, some developer defaults will be enabled. See cfg.mk for details. Then build the project normally, and run the test suite. ``` $ make $ make check ``` To test the code coverage of the test suite use the following: ``` $ ./configure --enable-code-coverage $ make && make check && make code-coverage-capture ``` Individual tests that may require additional hardware (e.g., smart cards) are: ``` $ sh tests/suite/testpkcs11 ``` # Building for windows It is recommended to cross compile using Fedora and the following dependencies: ``` yum install -y wine mingw32-nettle mingw32-libtasn1 mingw32-gcc ``` and build as: ``` mingw32-configure --enable-local-libopts --disable-non-suiteb-curves --disable-doc --without-p11-kit mingw32-make mingw32-make check ``` # Contributing If you wish to contribute, you may read more about our [coding style](CONTRIBUTING.md). Note that when contributing code that is not assigned to FSF, you will need to assert that the contribution is in accordance to the "Developer's Certificate of Origin" as found in the file [DCO.txt](doc/DCO.txt). That can be done by sending a mail with your real name to the gnutls-devel mailing list. Then just make sure that your contributions (patches), contain a "Signed-off-by" line, with your name and e-mail address. To automate the process use "git am -s" to produce patches. Happy hacking! ---------------------------------------------------------------------- Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.