[avr-libc-dev] [bug #19771] multiple definition of `__fixsfsi'

[Sean D Epagnier]

URL:
  <http://savannah.nongnu.org/bugs/?19771>

                 Summary: multiple definition of `__fixsfsi'
                 Project: AVR C Runtime Library
            Submitted by: geckosenator
            Submitted on: Wednesday 05/02/2007 at 07:10
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any

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Details:


                                                                      $
avr-gcc -mmcu=atmega168 x.o -o x.elf -lm -Wl,-u,vfprintf -\
lprintf_flt -Wl,-Map=firstmag.map,--cref                                     
                                   

/usr/local/avr/lib/gcc/avr/4.1.1/../../../../avr/lib/avr5/libc.a(fixsfsi.o):
In function `__fixsfsi':            
../../../libm/fplib/fixsfsi.S:57: multiple definition of `__fixsfsi'         
                                   
/usr/local/avr/lib/gcc/avr/4.1.1/avr5/libgcc.a(_sf_to_si.o):/usr/local/avr/build/gcc-4.1.1/gcc/fp-bit.c:1404:
fi\
rst defined here  

I am getting this problem with:
LDFLAGS = -lm -Wl,-u,vfprintf -lprintf_flt

The problem always occurs if I don't have a printf
with %f in it in the program, and in some cases where
it does.

If I insert the following code into my program the
problem never occurs:

void dum(void)                                                               
                                   
{                                                                            
                                   
   int c;                                                                    
                                   
   printf("%f", (double)c);                                                  
                         
}                                                                            
                                   
           

If I were to declare c as a double, the problem could still
occur.

Should a function be removed from libgcc?





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