Removing rancid doc files. If we have build instructions, we have a responsibility to keep them up to date. If not, they're more dangerous than they're worth.

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<!-- Copyright 2015-2017, pEp foundation, Switzerland
This file is part of the pEp Engine
This file may be used under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) License
See CC_BY-SA.txt -->
# Build instructions for macOS Sierra
# Installing packaged dependencies
You will find instructions for using either Macports or Homebrew below to install the compile-time dependencies.
## MacPorts
Install MacPorts according to the instructions found [here](
Ensure that Macports' binary paths (`/opt/local/bin` and `/opt/local/sbin`) are in your `PATH` environment variable.
# general
sudo port install mercurial
# YML2
sudo port install py27-lxml
# libetpan
sudo port install git autoconf automake libtool
# asn1c
sudo port install asn1c
# engine
sudo port install gpgme
Ensure that `python` is Python 2.7:
sudo port select python python27
## Homebrew
Install Homebrew according to the instructions found [here](
Ensure that Homebrew's binary path (`/usr/local/bin`) is in your `PATH` environment variable.
# general
brew install mercurial
# YML2
# If you don't have pip with your Python 2 distribution, you can install it with brew
brew install python
pip2 install --user lxml
# libetpan
brew install git autoconf automake libtool
# asn1c
brew install asn1c
# engine
brew install gpgme
# Installing unpackaged dependencies
## YML2
To check if lxml is properly installed, you can use this lxml "hello world" command:
python2 -c 'from lxml import etree; root = etree.Element("root"); print(root.tag)'
It should generate the following output:
mkdir -p ~/code/yml2
hg clone ~/code/yml2
## libetpan
pEp Engine requires libetpan with a set of patches that have not been upstreamed yet.
mkdir -p ~/code/libetpan
git clone ~/code/libetpan
cd ~/code/libetpan
mkdir ~/code/libetpan/build
./ --prefix="$HOME/code/libetpan/build"
make install
The MacPorts-packaged GPGME links to a version of GNU libiconv that has files in the same include/library paths as GPGME. This version of libiconv must not be visible to the linker when the pEp Engine is build or run.
Thus the files of the GPGME distribution will have to be manually copied to separate include/library folders, so that no include or library paths used for building the pEp Engine contains files of MacPorts' libiconv distribution.
mkdir -p ~/code/gpgme/build/include
cp /opt/local/include/gpg*.h ~/code/gpgme/build/include
mkdir -p ~/code/gpgme/build/lib
cp -r /opt/local/lib/libgpg* ~/code/gpgme/build/lib
It's of course possible to skip MacPort's version, and use a self-compiled GPGME/GPG. The default build configuration assumes this case, and assumes you have installed your GPGME with `$(HOME)` as your prefix.
# pEp Engine
mkdir -p ~/code/pep-engine
hg clone ~/code/pep-engine
cd ~/code/pep-engine
mkdir ~/code/pep-engine/build
Edit the build configuration to your needs in `Makefile.conf`, or create a `local.conf` that sets any of the make variables documented in `Makefile.conf`. All the default values for the build configuration variables on each platform are documented in `Makefile.conf`.
If a dependency is not found in your system's default include or library paths, you will have to specify the according paths in a make variable. Typically, this has to be done at least for YML2, and libetpan.
For a more detailed explanation of the mechanics of these build configuration files, and overriding defaults, see the comments in `Makefile.conf`.
Below is a sample `./local.conf` file, for orientation.
The engine is built as follows:
make all
make db
If your build fails with an error message similar to the following:
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/", line 477, in _parse_localename
raise ValueError, 'unknown locale: %s' % localename
ValueError: unknown locale: UTF-8
or any other locale-related Python error, make sure Python does not have any locale-related environment variables set.
Usually, `unset LC_CTYPE` is sufficient to take care of the problem, but it depends on your macOS's regional and language settings and which terminal emulator you use.
This is a bug in Python, see [](
The unit tests can be run without the engine library being installed, however `system.db` must be installed:
make -C db install
Since `system.db` rarely changes, its installation is not needed for every build.
Tests can be compiled and executed with the following commands:
make -C test compile
make test

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# Using NetPGP instead of GnuPG
## Prepare
Get OpenSSL:
curl -O
Build it using the openssl-for-ios build script:
git clone .
and build/install it as shared library.
tar xvfz openssl-1.0.1u.tar.gz
cd openssl-1.0.1u
./Configure darwin64-x86_64-cc --prefix=$HOME shared
make install
Get and autoconf NetPGP
cd $SRC
hg clone
cd netpgp-et
autoreconf -i
## Build
Important : LDFLAGS is set to help finding OpenSSL shared lib. If not set,
system's default libcrypto may silently be used instead, causing memory
corruption or crash at runtime.
mkdir netpgp_debug
cd netpgp_debug
$SRC/netpgp-et/configure --with-openssl=$HOME --prefix=$HOME CPPFLAGS=-DDEBUG CXXFLAGS="-g -O0" LDFLAGS="-L${HOME}/lib"
make install

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<!-- Copyright 2015-2017, pEp foundation, Switzerland
This file is part of the pEp Engine
This file may be used under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) License
See CC_BY-SA.txt -->
# Information about the pEp Engine
# Dependencies
The p≡p Engine depends on the following projects:
- run-time dependencies
- One of the following OpenPGP implementations:
- GnuPG version 2.1.17 or later with GPGME (at least version 1.7.0) [](
- For platforms not supporting pinentry (e.g. Android) - GnuPG version 2.0.30 with GPGME version 1.6.0 (or later) [](
- a fork of NetPGP, [](
- Sequoia, which in turn requires:
- Rust
- libnettle
- One of the following MIME libraries:
- a fork of libetpan, [](
- zlib, [](
- libcurl (Only with NetPGP), [](
- libuuid, [](
- SQLite, [](
- OpenSSL (Only with NetPGP), [](
- compile-time dependencies
- asn1c (version v0.9.28), [](
- yml2, [](
- Python 3
- One of the following build systems:
- GNU make (on Linux and macOS)
- MSBuild distributed with Microsoft Visual Studio 2015 (on Windows)
- One of the following compilers for C and C++:
- GNU GCC (on Linux)
- Apple "clang" LLVM (on MacOS)
- Microsoft MSVC/MSVC++ distributed with Microsoft Visual Studio 2015 (on Windows)
- A script for compiling OpenSSL for iOS, [](
- binutils
# The pEp Engine's databases
The p≡p Engine uses two databases:
- the management database
- `~/.pEp_management` on \*NIX
- `%LOCALAPPDATA%\pEp\management.db` on Windows
- the Trustword database
- `/usr/local/share/system.db` on \*NIX
- `%ALLUSERSPROFILE%\pEp\system.db` on Windows
The management db is created by the first call of `init()` of p≡p Engine.
It does not need to be created manually.
`system.db` is created by using the DDL in `db/create_system_db.sql`; the database content is created by `db/` out of hunspell's dictionary packages (or something similar) and then imported using `sqlite3`'s `.import` command.
Dictionary files for different languages are part of the p≡p Engine source distribution.
You can test the Trustwords in `system.db` using `db/`.
Both Python tools have a `--help` switch.

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# Testing
For the documentation of the tests, see `test/`