OPT = s
CSTANDARD = -std=gnu11
-CDEBUG =
+CDEBUG = -g
CWARN = -Wall -Wextra -Wstrict-prototypes -Wredundant-decls
-CTUNING = -funsigned-char -fshort-enums -funsigned-bitfields -fpack-struct
+CTUNING = -fshort-enums -funsigned-bitfields -fpack-struct
+#CTUNING += -funsigned-char
CTUNING += -mrelax -fno-common
CTUNING += -fno-move-loop-invariants
CTUNING += -fno-tree-loop-optimize