gcc
-std=c11
-Iinc
-Wall
-Wextra
-Wconversion
-Wdouble-promotion
-Wshadow
-Wcast-qual
-Wmissing-prototypes
-Wmissing-noreturn
-Wredundant-decls
-Wdisabled-optimization
-Wunsafe-loop-optimizations
-Wcast-align=strict
-Winline
-Wvla
-Wlogical-op
-Wdate-time
-Werror
-pedantic
-DDEBUG