Building Qt OPC UA Open62541 Plugin

The Open62541 plugin requires Open62541 v0.3 built with UA_ENABLE_AMALGAMATION=ON.

When building at the top level, you have to specify the path to the Open62541 SDK:

configure OPEN62541_PREFIX=/path/to/sdk

If you are not building at the top level, this setting has to be given to qmake:

qmake </path/to/qtopcua> -- OPEN62541_PREFIX=/path/to/sdk

If the open62541 header and library files are located in a custom path, different settings must be used:

OPEN62541_INCDIRThe directory which contains open62541.h
OPEN62541_LIBDIRThe directory which contains the library file

For example, the following settings can be used for building the open62541 plugin using a static build directly from its build directory without installing it:

OPEN62541_INCDIR=/path/to/open62541/build OPEN62541_LIBDIR=/path/to/open62541/build/bin

The output of the configuration step indicates whether the detection was successful:

Open62541 .............................. yes

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