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Add static build & add -Bsymbolic for loadable extension #402

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Add static build & add -Bsymbolic for loadable extension #402

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678b0f9
Support static build & Add -Bsymbolic for loadable extension
YuweiXiao Feb 3, 2026
eb824ae
minimize changes
YuweiXiao Feb 3, 2026
1d1896c
cleanup
YuweiXiao Feb 3, 2026
0684e8f
add c99 compiler flag for static build
YuweiXiao Mar 4, 2026
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32 changes: 27 additions & 5 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -186,25 +186,47 @@ if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/postgres)
endif()

set(PARAMETERS "-no-warnings")
set(EXTENSION_NAME ${TARGET_NAME}_extension)
set(LOADABLE_EXTENSION_NAME ${TARGET_NAME}_loadable_extension)

build_static_extension(${TARGET_NAME} ${ALL_OBJECT_FILES}
${LIBPG_SOURCES_FULLPATH})
build_loadable_extension(${TARGET_NAME} ${PARAMETERS} ${ALL_OBJECT_FILES}
${LIBPG_SOURCES_FULLPATH})

target_include_directories(
${TARGET_NAME}_loadable_extension
${LOADABLE_EXTENSION_NAME}
PRIVATE include postgres/src/include postgres/src/backend
postgres/src/interfaces/libpq ${OPENSSL_INCLUDE_DIR})

if(WIN32)
target_include_directories(
${TARGET_NAME}_loadable_extension
${LOADABLE_EXTENSION_NAME}
PRIVATE postgres/src/include/port/win32 postgres/src/port
postgres/src/include/port/win32_msvc)
endif()

target_link_libraries(${TARGET_NAME}_loadable_extension ${OPENSSL_LIBRARIES})
set_property(TARGET ${TARGET_NAME}_loadable_extension PROPERTY C_STANDARD 99)
# Fix for ELF symbol conflict when loaded inside PostgreSQL backend
# Use -Bsymbolic to force the extension to prefer its own symbols over global ones
# This fixes the pg_link_canary_is_frontend() check failure where calls from within
# this extension resolve to the backend's version (returns false) instead of ours (returns true)
if(NOT WIN32 AND NOT APPLE)
target_link_options(${LOADABLE_EXTENSION_NAME} PRIVATE
"-Wl,-Bsymbolic"
)
endif()

target_link_libraries(${LOADABLE_EXTENSION_NAME} ${OPENSSL_LIBRARIES})
set_property(TARGET ${EXTENSION_NAME} PROPERTY C_STANDARD 99)
set_property(TARGET ${LOADABLE_EXTENSION_NAME} PROPERTY C_STANDARD 99)

if(WIN32)
target_link_libraries(${TARGET_NAME}_loadable_extension wsock32 ws2_32
target_link_libraries(${LOADABLE_EXTENSION_NAME} wsock32 ws2_32
wldap32 secur32 crypt32)
endif()

install(
TARGETS ${EXTENSION_NAME}
EXPORT "${DUCKDB_EXPORT_SET}"
LIBRARY DESTINATION "${INSTALL_LIB_DIR}"
ARCHIVE DESTINATION "${INSTALL_LIB_DIR}")
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