add -Werror=implicit-function-declaration since the warning should not be ignored
@@ -242,7 +242,7 @@ IF (PKG_CONFIG_FOUND)
ENDIF (BROTLI_DEC_FOUND AND BROTLI_ENC_FOUND)
ENDIF (PKG_CONFIG_FOUND)
-SET(CC_WARNING_FLAGS "-Wall -Wno-unused-value -Wno-unused-function -Wno-nullability-completeness -Wno-expansion-to-defined")
+SET(CC_WARNING_FLAGS "-Wall -Wno-unused-value -Wno-unused-function -Wno-nullability-completeness -Wno-expansion-to-defined -Werror=implicit-function-declaration")
IF ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
IF (NOT ("${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "4.6"))
SET(CC_WARNING_FLAGS "${CC_WARNING_FLAGS} -Wno-unused-but-set-variable")
