Dependencies

These are the dependencies currently used by Bitcoin Core. You can find instructions for installing them in the build-*.md file for your platform.

Dependency	Version used	Minimum Required	CVEs?	Shared	Bundled Qt Library
openssl	[1.0.1k]](https://www.openssl.org/source)		Yes
ccache	3.3.4		No
libevent	2.1.8-stable	2.0.22	No
Qt	5.7.1	4.7+	No
Freetype	2.7.1		No
Boost	1.64.0	1.47.0	No
Protobuf	2.6.3		No
Zeromq	4.1.5		No
miniupnpc	2.0.20170509		No
qrencode	3.4.4		No
berkeley-db	4.8.30	4.8.x	No
dbus	1.10.18		No	yes
expat	2.2.1		No	yes
fontconfig	2.12.1		No	yes
freetype					no (linux uses system)
zlib	1.2.11				no
libjpeg					yes
libpng					yes
PCRE					yes
xcb					yes (linux only)
xkbcommon					yes (linux only)
HarfBuzz-NG					?
Python (tests)		3.4
GCC		4.7+
Clang		3.3+ (C++11 support)