make[1]: Entering directory '/build/hasciicam/src/hasciicam_1.3/src'
  CC       hasciicam.o
hasciicam.c:183:3: error: initialization of ‘const char * const*’ from incompatible pointer type ‘char **’ [-Wincompatible-pointer-types]
  183 |   html_escapes
      |   ^~~~~~~~~~~~
hasciicam.c:183:3: note: (near initialization for ‘hascii_format.conversions’)

const char * const html_escapes[] = {
    "string1",
    "string2",
    //... other strings
};

#include <unistd.h> // Add this line at the top

make && sudo make install