Updated Arduino IDE 16.3 "PROGMEM need const" compile errors

Using Arduino Programming Questions
#1

Once I fixed my code from :-

unsigned char font PROGMEM = {
to
const unsigned char font PROGMEM = {

I get compiling errors on my code below :-

Arduino\libraries\SSD1306_text\SSD1306_text.cpp:124:26: error: invalid conversion from ‘const unsigned char*’ to ‘uint8_t* {aka unsigned char*}’ [-fpermissive]

uint8_t *base = font + 5 * c;
^

Any idea on how to fix this compile errors ??

Here is the URL to the text only library :-

SSD1306 text only

#2

Did you try:

const uint8_t PROGMEM *base = font + 5 * c;
#3

const uint8_t PROGMEM *base = font + 5 * c;

Thanks.. that "const" fixes it..

#4