16.1: Setting Up Libwally

NOTE: This is a draft in progress, so that I can get some feedback from early reviewers. It is not yet ready for learning.

This first section will explain how to download Libwally and how to get it working.

📖 What is Libwally? Libwally is a library of primitives helpful for the creation of wallets that is cross-platform and cross-language, so that the same functions can be used everywhere. There are extensive docs. It's made available as part of Blockstream's Elements Project.

Installing Libwally

As usual, you'll need some packages on your system:

$ sudo apt-get install git
$ sudo apt-get install dh-autoreconf

You can download Libwally from its Git repo:

$ git clone https://github.com/ElementsProject/libwally-core

You can then get things installed:

$ ./tools/autogen.sh

As with libbitcoinrpc, you may wish to install this in /usr/include and /usr/lib for ease of usage. Just modify the appropriate line in the configure program:

< ac_default_prefix=/usr
---
> ac_default_prefix=/usr/local

Afterward you can finish your prep:

$ ./configure
$ make

You can then verify that tests are work:

$ make check
Making check in src
make[1]: Entering directory '/home/standup/libwally-core/src'
Making check in secp256k1
make[2]: Entering directory '/home/standup/libwally-core/src/secp256k1'
make  check-TESTS
make[3]: Entering directory '/home/standup/libwally-core/src/secp256k1'
make[4]: Entering directory '/home/standup/libwally-core/src/secp256k1'
============================================================================
Testsuite summary for libsecp256k1 0.1
============================================================================
# TOTAL: 0
# PASS:  0
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================
make[4]: Leaving directory '/home/standup/libwally-core/src/secp256k1'
make[3]: Leaving directory '/home/standup/libwally-core/src/secp256k1'
make[2]: Leaving directory '/home/standup/libwally-core/src/secp256k1'
make[2]: Entering directory '/home/standup/libwally-core/src'
make  check-TESTS check-local
make[3]: Entering directory '/home/standup/libwally-core/src'
make[4]: Entering directory '/home/standup/libwally-core/src'
PASS: test_bech32
PASS: test_psbt
PASS: test_psbt_limits
PASS: test_tx
============================================================================
Testsuite summary for libwallycore 0.7.8
============================================================================
# TOTAL: 4
# PASS:  4
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================
make[4]: Leaving directory '/home/standup/libwally-core/src'
make[3]: Nothing to be done for 'check-local'.
make[3]: Leaving directory '/home/standup/libwally-core/src'
make[2]: Leaving directory '/home/standup/libwally-core/src'
make[1]: Leaving directory '/home/standup/libwally-core/src'
make[1]: Entering directory '/home/standup/libwally-core'
make[1]: Nothing to be done for 'check-am'.
make[1]: Leaving directory '/home/standup/libwally-core'

Finally, you can install:

$ sudo make install

3.3 KiB Raw Blame History

16.1: Setting Up Libwally

Installing Libwally

3.3 KiB

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