Unable to compile IEEE754 intel library

Question

I am stuggling with IEEE754 intel library which I want to use in my calculator project on Raspberry pico. I want to compute with 128-bit decimal floating-point numbers.

This library is quite large for Raspberry pico so I planned to use only source files with functions I need (+, -, *, /, sqrt, sin, cos, log, ...).

It is this library: IEE754 intel library

First I managed to make to work add, sub, mul, div and sqrt.
This files are needed:

• bid128.c
• bid128_2_str.h
• bid128_2_str_macros.h
• bid128_2_str_tables.c
• bid128_add.c
• bid128_fma.c
• bid128_mul.c
• bid128_sqrt.c
• bid128_string.c
• bid_conf.h
• bid_decimal_data.c
• bid_functions.h
• bid_internal.h
• bid_round.c
• bid_sqrt_macros.h
• bid_trans.h
• decimal.h

And here is the code:

#include "decimal.h"

BID_UINT128 a, b, c;

char output_IEEE[] = " ";

_IDEC_round my_rnd_mode = _IDEC_dflround;
_IDEC_flags my_fpsf = _IDEC_allflagsclear;


void setup()
{
  Serial.begin(115200);

  delay(5000);

  char input_a[] = {'+', '0', '.', '1', '2', 'E', '-', '1', '2', 0};
  char input_b[] = {'3', '.', '1', '4', '1', 0};

  a = __bid128_from_string (input_a, my_rnd_mode, &my_fpsf);
  __bid128_to_string (output_IEEE, a, &my_fpsf); 
  Serial.println("a = " + String(output_IEEE)); 

  b = __bid128_from_string (input_b, my_rnd_mode, &my_fpsf);
  __bid128_to_string (output_IEEE, b, &my_fpsf); 
  Serial.println("b = " + String(output_IEEE)); 
  
  my_rnd_mode = _IDEC_nearesteven; my_fpsf = _IDEC_allflagsclear; 

  c = __bid128_add (a, b, my_rnd_mode, &my_fpsf);
  __bid128_to_string (output_IEEE, c, &my_fpsf); 
  Serial.println("a + b = " + String(output_IEEE)); 
  
   c = __bid128_mul (a, b, my_rnd_mode, &my_fpsf);
  __bid128_to_string (output_IEEE, c, &my_fpsf); 
  Serial.println("a * b = " + String(output_IEEE)); 

  c = __bid128_sqrt (a, my_rnd_mode, &my_fpsf);
  __bid128_to_string (output_IEEE, c, &my_fpsf); 
  Serial.println("sqrt(a) = " + String(output_IEEE)); 

}

I get this output which is exactly what I want:

a = +12E-14
b = +3141E-3
a + b = +314100000000012E-14
a * b = +37692E-17 sqrt(a) = +3464101615137754587054892683011745E-40

but when I want to compute transcendental with this file bid128_sin.c added:

  c = __bid128_sin (a, my_rnd_mode, &my_fpsf);
  __bid128_to_string (output_IEEE, c, &my_fpsf); 
  Serial.println("sqrt(a) = " + String(output_IEEE)); 

I must include a lot of another source files and headers and the more I add the more errors arise.
Has someone experience with this library, please. I don't want to compile the whole library because it would be too big for the raspberry pico. I am also unable to get those "transcendental" functions to work on windows.
Thank you.