Il giorno lun, 24/10/2011 alle 17.59 -0700, David Buchan ha scritto:
> Interesting. I just tried compiling a simple non-gtk c program:
>
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <math.h>
>
> int
> main()
> {
> int i;
> double a =3.14;
> double c;
>
> c = log(a);
>
> c = pow(a, i);
>
> }
>
>
>
>
> $ gcc -lm test.c
> /tmp/cc9RccRJ.o: In function `main':
> test.c:(.text+0x1b): undefined reference to `log'
> test.c:(.text+0x33): undefined reference to `pow'
> collect2: ld returned 1 exit status
Try "gcc test.c -lm": I found the object order is important on recent
Ubuntu. Not sure is gcc or ubuntu related.
With autotools I had to move the libs flags in LDADD instead of LDFLAGS.
Ciao.
--
Nicola
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