Beyond Linux® From Scratch (System V Edition) - Version 2021-04-13

Chapter 4. Security

GPGME-1.15.1

Introduction to GPGME

The GPGME package is a C library that allows cryptography support to be added to a program. It is designed to make access to public key crypto engines like GnuPG or GpgSM easier for applications. GPGME provides a high-level crypto API for encryption, decryption, signing, signature verification and key management.

This package is known to build and work properly using an LFS-10.1 platform.

Package Information

GPGME Dependencies

Required

Libassuan-2.5.5

Optional

Doxygen-1.9.1 and Graphviz-2.47.0 (for API documentation), GnuPG-2.2.27 (required if Qt or SWIG are installed; used during the testsuite), Clisp-2.49, Qt-5.15.2, and/or SWIG-4.0.2 (for language bindings)

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/gpgme

Installation of GPGME

Install GPGME by running the following commands: 

./configure --prefix=/usr --disable-gpg-test &&
make

To test the results, you should have GnuPG-2.2.27 installed and remove the --disable-gpg-test above. Issue: make -k check.

Now, as the root user: 

make install

Command Explanations

--disable-gpg-test: if this parameter is not passed to configure, the test programs are built during make stage, which requires GnuPG-2.2.27. This parameter is not needed if GnuPG-2.2.27 is installed.

Contents

Installed Program: gpgme-config, gpgme-json, and gpgme-tool
Installed Libraries: libgpgme, libgpgmepp.so, and libqgpgme.so
Installed Directory: /usr/include/{gpgme++,qgpgme,QGpgME}, /usr/lib/cmake/{Gpgmepp,QGpgme}. /usr/lib/python{2.7,3.9}/site-packages/gpg, and /usr/share/common-lisp/source/gpgme

Short Descriptions

gpgme-config

is used to obtain GPGME compilation and linking information

gpgme-json

outputs GPGME commands in JSON format

gpgme-tool

is an assuan server exposing GPGME operations, such as printing fingerprints and keyids with keyservers

libgpgme.so

contains the GPGME API functions

libgpgmepp.so

contains the C++ GPGME API functions

libqgpgme.so

contains API functions for handling GPG operations in Qt applications

Last updated on 2021-03-03 02:48:29 -0600