Apocrypha

open62541

Open source C implementation of OPC UA

open62541 (http://open62541.org) is an open source and free implementation of OPC UA (OPC Unified Architecture) written in the common subset of the C99 and C++98 languages. The library is usable with all major compilers and provides the necessary tools to implement dedicated OPC UA clients and servers, or to integrate OPC UA-based communication into existing applications. open62541 library is platform independent. All platform-specific functionality is implemented via exchangeable plugins. Plugin implementations are provided for the major operating systems.

Available in

OverlayNewestEbuildsLast activity
guru gitweb ↗ 1.5.5 1 46 h details ›

Versions & arches

VersionOverlay amd64arm64x86 Committed
1.5.5 guru amd64 testing arm64 testing x86 testing view · download · history ↗

Use flags of 1.5.5

  • doc Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
  • examples Install examples, usually source code
  • mbedtls Enable encryption support using net-libs/mbedtls
  • pubsub Enable OPC/UA Pub/Sub extensions
  • openssl Enable encryption support using dev-libs/openssl
  • tools Build additional shell tools
3 expansion flags (python targets, ABIs, cpu flags…)
  • python_single_target_python3_12
  • python_single_target_python3_13
  • python_single_target_python3_14

Runtime dependencies of 1.5.5

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python_single_target_python3_12? (
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python_single_target_python3_13? (
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python_single_target_python3_14? (
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mbedtls? (
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openssl? (
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