cc -O2 -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations float/DBL_DECIMAL_DIG.c -o float/DBL_DECIMAL_DIG -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lintl -lcrypt
float/DBL_DECIMAL_DIG.c:3:2: error: #error "DBL_DECIMAL_DIG is not defined"
    3 | #error "DBL_DECIMAL_DIG is not defined"
      |  ^~~~~