It is so good when you get a Linux program to compile on a Macintosh.

()deusexmachina.local-_
(04:34 pm)New LS $> make
mkdir -p build
gcc -Wall -Wextra -std=gnu99 -lm -c src/my_ls.c -o build/my_ls.o
clang: warning: -lm: 'linker' input unused [-Wunused-command-line-argument]
In file included from src/my_ls.c:37:
src/my_ls.h:7:9: warning: 'PATH_MAX' macro redefined [-Wmacro-redefined]
#define PATH_MAX 4096 /* # chars in a path name including nul */
        ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/syslimits.h:99:9: note: previous definition is here
#define PATH_MAX                 1024   /* max bytes in pathname */
        ^
In file included from src/my_ls.c:37:
src/my_ls.h:92:26: warning: format specifies type 'long' but the argument has type 'nlink_t' (aka 'unsigned short') [-Wformat]
        printf(" %-4ld", file_stat.st_nlink); /* Print file hardlinks. */
                 ~~~~~   ^~~~~~~~~~~~~~~~~~
                 %-4hu
src/my_ls.h:112:53: warning: format specifies type 'long' but the argument has type 'off_t' (aka 'long long') [-Wformat]
               printf("\x1b[35m %-6ld B   \x1b[0m", file_stat.st_size);
                                ~~~~~               ^~~~~~~~~~~~~~~~~
                                %-6lld
3 warnings generated.
gcc -Wall -Wextra -std=gnu99 -lm build/my_ls.o -o build/my_program

()deusexmachina.local-_
(04:38 pm)New LS $> ./build/my_program /System/Library/Kernels/
/System/Library/Kernels/drwxr-xr-x.   142  root  wheel 4.00  KB    1693811729  .. 
-rwxr-xr-x.   1    root  wheel 14.00 MB    1693811729  kernel.release.t6000 
-rwxr-xr-x.   1    root  wheel 13.00 MB    1693811729  kernel.release.vmapple 
-rwxr-xr-x.   1    root  wheel 14.00 MB    1693811729  kernel.release.t8110 
-rwxr-xr-x.   1    root  wheel 14.00 MB    1693811729  kernel.release.t8101 
-rwxr-xr-x.   1    root  wheel 14.00 MB    1693811729  kernel.release.t8020 
-rwxr-xr-x.   1    root  wheel 17.00 MB    1693811729  kernel 
End of listing.

int main(int argc, char *argv[]) {
 
    #define BUF 0x05
 
    if (argc == 2 && strcmp(argv[1], "--about") == 0) {
        // Print the about information here
        print_about();  // Define this function to contain your about content
        return 0;  // Exit the program after printing about
    }
 
    if (argc == 1) {
        list_files(".");
    } else {
        printf("%s", argv[1]);
        /**
         * Calls the function list_files with the provided command line argument.
         *
         * @param argv[1] The command line argument representing the directory path.
         */
        list_files(argv[1]);
    }
 
    printf("End of listing.\n");
    /**
     * This code snippet invokes the `syscall` function to execute the `exit` system call.
     * The `exit` system call terminates the program and returns the exit status to the operating system.
     * The `syscall` function takes three arguments: the system call number, and two additional arguments
     * that are specific to the system call being invoked.
     * In this case, the system call number 60 corresponds to the `exit` system call.
     * The two additional arguments are set to 0, indicating that no additional information is passed to 
     * the `exit` system call.
     */
 
    __asm__("mov $0, %eax");
}