32-bit multiplication seems to be way off for some values about libfixmath HOT 3 CLOSED

I cannot seem to be able to reproduce this problem:

petteri@oddish:~/libfixmath$ cat test.c
#include <stdio.h>
#include <fix16.h>

int main()
{
        fix16_t a = fix16_from_dbl(9.9);
        fix16_t b = fix16_from_dbl(9.9);
        fix16_t result = fix16_mul(a, b);
        printf("%f\n", fix16_to_dbl(result));

        return 0;
}
petteri@oddish:~/libfixmath$ gcc -I libfixmath test.c libfixmath/fix16.c
petteri@oddish:~/libfixmath$ ./a.out 
98.009872
petteri@oddish:~/libfixmath$ gcc -I libfixmath -DFIXMATH_NO_64BIT=1 test.c 
libfixmath/fix16.c
petteri@oddish:~/libfixmath$ ./a.out 
98.009872
petteri@oddish:~/libfixmath$ gcc -I libfixmath -DFIXMATH_NO_64BIT=1 
-DFIXMATH_OPTIMIZE_8BIT test.c libfixmath/fix16.c
petteri@oddish:~/libfixmath$ ./a.out 
98.009872

My bad, I was using some personalized data types for a MCU on the PC. Got the 
original repo and it works.

Info if you want to reproduce it:

$ uname -a
3.11.0-19-generic #33~precise1-Ubuntu SMP Wed Mar 12 21:16:27 UTC 2014 x86_64 
x86_64 x86_64 GNU/Linux

typedef char int8_t;
typedef unsigned char uint8_t;
typedef int int16_t;
typedef unsigned int uint16_t;
typedef unsigned long uint32_t;
typedef long int32_t;
typedef long long int64_t;
typedef unsigned long long uint64_t;