I have the simmilar problem. Even adding '-lm ' doesnt help. I am still
getting undefined references. Using mspgcc-030306.exe build.
#include "math.h"
int main (void)
{
float fRes;
fRes = fabs(1.4); //links ok
fRes = powf(55, 4); //linker failes
fRes = sqrt(1000); //linker failes
fRes = sinf(1.2); //linker failes
fRes = cosf(1.2); //linker failes
fRes = sinf(1.2); //linker failes
fRes = asinf(0.44); //linker failes
return 0;
}
D:\Software\MSP430\Apps\testx>gmake
msp430-gcc -mmcu=msp430x149 -lm -o Test.elf Test.o
Test.o(.text+0x12): In function `main':
/cygdrive/d/LBSSandbox/LT100/Software/MSP430/Apps/testx/Test.c:7: undefined
reference to `powf'
Test.o(.text+0x1c):/cygdrive/d/Software/MSP430/Apps/testx/Test.c:8:
undefined reference to `sqrt'
Test.o(.text+0x28):/cygdrive/d/Software/MSP430/Apps/testx/Test.c:9:
undefined reference to `sinf'
Test.o(.text+0x34):/cygdrive/d/Software/MSP430/Apps/testx/Test.c:10:
undefined reference to `cosf'
Test.o(.text+0x40):/cygdrive/d/Software/MSP430/Apps/testx/Test.c:11:
undefined reference to `sinf'
Test.o(.text+0x4c):/cygdrive/d/Software/MSP430/Apps/testx/Test.c:12:
undefined reference to `asinf'
gmake: *** [Test] Error 1
Any suggestions ?
Thanks,
Nenad
-----Original Message-----
From: [email protected]
[mailto:[email protected]]on Behalf Of Dmitry
Sent: Monday, February 03, 2003 2:02 PM
To: [email protected]
Subject: Re: [Mspgcc-users] Math functions in math.h?
does -lm help?
~d
On Monday 03 February 2003 21:08, Mark Stokes wrote:
> I am using the pow( x,y) function as defined in math.h but don't know
> how to tell the linker where the library is.. Could someone help me?
> -Mark
>
>
>
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