clang -O2  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations limits/NSIG_MAX.c -o limits/NSIG_MAX -D_POSIX_C_SOURCE=202405L  -lm  -lintl
limits/NSIG_MAX.c:3:2: error: "NSIG_MAX is not defined"
#error "NSIG_MAX is not defined"
 ^
1 error generated.