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# ======================================
# BuildDeps.cmake
#
# Configure, build, and install open62541 and QtOpcUa from git submodules under
# deps/.
#
# Skip detection: if the built .so already exists, the corresponding dep is
# skipped. Delete the file to rebuild.
# ======================================
set(OPEN62541_SOURCE_DIR "${PROJECT_SOURCE_DIR}/deps/open62541")
set(OPEN62541_BUILD_DIR "${PROJECT_BINARY_DIR}/deps/open62541-build")
set(OPEN62541_INSTALL_DIR "${PROJECT_BINARY_DIR}/deps/open62541-install"
CACHE INTERNAL "open62541 install prefix")
set(QTOPCUA_SOURCE_DIR "${PROJECT_SOURCE_DIR}/deps/qtopcua")
set(QTOPCUA_BUILD_DIR "${PROJECT_BINARY_DIR}/deps/qtopcua-build")
set(QTOPCUA_INSTALL_DIR "${PROJECT_BINARY_DIR}/deps/qtopcua-install"
CACHE INTERNAL "QtOpcUa install prefix")
# Verify submodules are initialized
if(NOT EXISTS "${OPEN62541_SOURCE_DIR}/CMakeLists.txt")
message(
FATAL_ERROR
"open62541 submodule not initialized. Run: git submodule update --init --recursive"
)
endif()
if(NOT EXISTS "${QTOPCUA_SOURCE_DIR}/CMakeLists.txt")
message(
FATAL_ERROR
"qtopcua submodule not initialized. Run: git submodule update --init --recursive"
)
endif()
# ======================================
# open62541
# ======================================
if(WIN32)
set(open62541_lib "open62541.lib")
else()
set(open62541_lib "libopen62541.so")
endif()
if(NOT EXISTS "${OPEN62541_INSTALL_DIR}/lib/${open62541_lib}")
message(STATUS "Configuring open62541 in ${OPEN62541_BUILD_DIR}...")
set(_cmd
${CMAKE_COMMAND}
-S
"${OPEN62541_SOURCE_DIR}"
-B
"${OPEN62541_BUILD_DIR}"
-G
Ninja
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_INSTALL_PREFIX=${OPEN62541_INSTALL_DIR}
-DBUILD_SHARED_LIBS=ON
-DUA_ENABLE_ENCRYPTION=OPENSSL
-DUA_ENABLE_DISCOVERY=ON)
execute_process(COMMAND ${_cmd} RESULT_VARIABLE _result)
if(_result)
list(JOIN _cmd " " _cmd_str)
message(FATAL_ERROR "${_cmd_str} failed: ${_result}")
endif()
message(STATUS "Building open62541 in ${OPEN62541_BUILD_DIR}...")
set(_cmd ${CMAKE_COMMAND} --build "${OPEN62541_BUILD_DIR}" --parallel)
execute_process(COMMAND ${_cmd} RESULT_VARIABLE _result)
if(_result)
list(JOIN _cmd " " _cmd_str)
message(FATAL_ERROR "${_cmd_str} failed: ${_result}")
endif()
message(STATUS "Installing open62541 to ${OPEN62541_INSTALL_DIR}...")
set(_cmd ${CMAKE_COMMAND} --install "${OPEN62541_BUILD_DIR}")
execute_process(COMMAND ${_cmd} RESULT_VARIABLE _result)
if(_result)
list(JOIN _cmd " " _cmd_str)
message(FATAL_ERROR "${_cmd_str} failed: ${_result}")
endif()
else()
message(STATUS "open62541 already built, skipping")
endif()
# ======================================
# QtOpcUa
# ======================================
find_program(
QT_CMAKE_COMMAND
NAMES qt-cmake qt-cmake.bat
PATHS ${CMAKE_PREFIX_PATH}
PATH_SUFFIXES bin REQUIRED)
if(WIN32)
set(qtopcua_lib "Qt6OpcUa.lib")
else()
set(qtopcua_lib "libQt6OpcUa.so")
endif()
if(NOT EXISTS "${QTOPCUA_INSTALL_DIR}/lib/${qtopcua_lib}")
message(STATUS "Configuring qtopcua in ${QTOPCUA_BUILD_DIR}...")
set(_cmd
${QT_CMAKE_COMMAND}
-S
"${QTOPCUA_SOURCE_DIR}"
-B
"${QTOPCUA_BUILD_DIR}"
-G
Ninja
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_INSTALL_PREFIX=${QTOPCUA_INSTALL_DIR}
# Use our locally-built open62541, not the bundled copy
-DINPUT_open62541=system
-DCMAKE_PREFIX_PATH=${OPEN62541_INSTALL_DIR})
if(WIN32)
set(_openssl_dir "C:/Program Files/OpenSSL-Win64")
if(NOT EXISTS "${_openssl_dir}")
message(
FATAL_ERROR "OpenSSL development files not found at ${_openssl_dir}.\n"
"Install with: winget install ShiningLight.OpenSSL.Dev")
endif()
list(APPEND _cmd -DOPENSSL_ROOT_DIR:PATH=${_openssl_dir})
endif()
execute_process(COMMAND ${_cmd} RESULT_VARIABLE _result)
if(_result)
list(JOIN _cmd " " _cmd_str)
message(FATAL_ERROR "${_cmd_str} failed: ${_result}")
endif()
message(STATUS "Building qtopcua in ${QTOPCUA_BUILD_DIR}...")
set(_cmd ${QT_CMAKE_COMMAND} --build "${QTOPCUA_BUILD_DIR}" --parallel)
execute_process(COMMAND ${_cmd} RESULT_VARIABLE _result)
if(_result)
list(JOIN _cmd " " _cmd_str)
message(FATAL_ERROR "${_cmd_str} failed: ${_result}")
endif()
message(STATUS "Installing qtopcua to ${QTOPCUA_INSTALL_DIR}...")
set(_cmd ${QT_CMAKE_COMMAND} --install "${QTOPCUA_BUILD_DIR}")
execute_process(COMMAND ${_cmd} RESULT_VARIABLE _result)
if(_result)
list(JOIN _cmd " " _cmd_str)
message(FATAL_ERROR "${_cmd_str} failed: ${_result}")
endif()
else()
message(STATUS "qtopcua already built, skipping")
endif()
if(WIN32)
# On Windows DLLs must be next to the .exe (no RPATH). Copy them to bin/.
file(MAKE_DIRECTORY "${PROJECT_BINARY_DIR}/bin")
file(GLOB _dep_dlls "${OPEN62541_INSTALL_DIR}/bin/*.dll"
"${QTOPCUA_INSTALL_DIR}/bin/*.dll")
foreach(_dll ${_dep_dlls})
file(COPY "${_dll}" DESTINATION "${CMAKE_BINARY_DIR}/bin")
endforeach()
else()
# The QtOpcUa backend plugin uses $ORIGIN-relative RUNPATH that resolves to
# qtopcua-install/lib/. Symlink the open62541 libs there so dlopen finds them.
file(GLOB _open62541_libs "${OPEN62541_INSTALL_DIR}/lib/libopen62541*")
foreach(_lib ${_open62541_libs})
get_filename_component(_name ${_lib} NAME)
if(NOT EXISTS "${QTOPCUA_INSTALL_DIR}/lib/${_name}")
file(CREATE_LINK ${_lib} "${QTOPCUA_INSTALL_DIR}/lib/${_name}" SYMBOLIC)
endif()
endforeach()
endif()
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