-ADD_DEFINITIONS("-DFEATURE_DLOG_DEBUG")
-ADD_DEFINITIONS("-DTCORE_LOG_TAG=\"TEL_PLUGIN__DATABASE\"")
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS} -O2 -Werror -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wdeclaration-after-statement -Wmissing-declarations -Wredundant-decls -Wcast-align -Wcast-qual -Wall -Wno-array-bounds -Wno-empty-body -Wno-ignored-qualifiers -Wshadow -Wwrite-strings -Wswitch-default -Wno-unused-but-set-parameter -Wno-unused-but-set-variable")
+
+### Purge unused code ###
+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fdata-sections -ffunction-sections -Wl,--gc-sections")
+
+ADD_DEFINITIONS("-DFEATURE_TLOG_DEBUG")
+ADD_DEFINITIONS("-DTCORE_LOG_TAG=\"SP_DB\"")
+ADD_DEFINITIONS("-DPLUGIN_VERSION=${VERSION}")
+ADD_DEFINITIONS("-DEXPORT_API=__attribute__((visibility(\"default\")))")