Everyone,
I've been trying unsuccessfully to use math library functions such as pow(),
expf() etc. with mspgcc (running on Windows). I downloaded the latest version
and the problem still exists. I created a minimal example which exhibits the
problem:
fptest.c:
/* minimal program showing math linking problems */
int main(void)
{
float a,b,c;
a = 1.234;
b = 5.678;
c = pow(a,b);
return 0;
}
compiled with this command:
msp430-gcc -g -mmcu=msp430x149 -o2 -lm fptest.c -o fptest.elf
Results in the following error:
W:\msp430\stack-code>msp430-gcc -g -mmcu=msp430x149 -o2 -lm fptest.c -o
fptest.elf
/cygdrive/c/DOCUME~1/torfst/LOCALS~1/Temp/ccGrKWzV.o(.text+0x2e): In function
`main':
/cygdrive/w/msp430/stack-code/fptest.c:9: undefined reference to `pow'
I tried adding -lfp as well as -lm, adding a global float variable, ... but it
does not make a difference. What am I missing?
greetings,
Tom
PS when upgrading I noticed the uprintf() function syntax has changed requiring
changes to existing code - it would perhaps be useful to update the online
documentation to reflect this new syntax
