cc -O2 -pipe  -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations signal/SIG2STR_MAX.c -o signal/SIG2STR_MAX -D_POSIX_C_SOURCE=202405L  -lm -lpthread 
signal/SIG2STR_MAX.c:3:2: error: "SIG2STR_MAX is not defined"
#error "SIG2STR_MAX is not defined"
 ^
1 error generated.