check_add_cflags -Wpointer-arith
check_add_cflags -Wtype-limits
check_add_cflags -Wcast-qual
+ check_add_cflags -Wimplicit-function-declaration
+ check_add_cflags -Wuninitialized
+ check_add_cflags -Wunused-variable
+ check_add_cflags -Wunused-but-set-variable
enabled extra_warnings || check_add_cflags -Wno-unused-function
fi