+ AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes])
+ AX_APPEND_COMPILE_FLAGS([-Wnested-externs])
+ AX_APPEND_COMPILE_FLAGS([-Wold-style-definition])
+ AX_APPEND_COMPILE_FLAGS([-Woverride-init])
+ AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes])
+ AX_APPEND_COMPILE_FLAGS([-Wlogical-op])