On Dienstag, 6. Februar 2007, Luit van Drongelen wrote:
> Allright, seems like I finally found my problem... somehow the compiler
> refuses to pass the linker the used/required libraries. Adding -l
> libm18f.lib to my linker options in piklab Fixes everything... Does anybody
> know why this doesn't happen automatically, or is this a problem caused by
> piklab, not sdcc?
Thats strange, does piklab have an way to display the command line options it
uses to invoke sdcc?
Here's how I tested:
test.c:
----
#include "math.h"
int main() {
float x;
return sinf(x);
}
-----
compile using:
# sdcc -mpic16 -pp18f2550 test.c
test.c:5: warning 84: 'auto' variable 'x' may be used before initialization
test.c:5: warning 84: 'auto' variable 'x' may be used before initialization
message: using default linker script "/usr/share/gputils/lkr/18f2550.lkr"
-----
gives me a nice 19kb .HEX file, with the math functions for sin embedded.
Maybe also try to update gputils to a recent version?
# gplink -v
gplink-060819 alpha
> > I just added the 31 december snapshot (removes my ability to program to
> > PIC18F4431, which I added myself) and it still gives me the same error;
Thats easy to fix: Just post your changes to the developers, and the next
snapshot might contain that device already ;)
/Ernst
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