Hello,
I'm working with telosb mote, and I need to use sqrt function in my
program, but I can't compile it.
===========================================
mkdir -p build/telosb
compiling TestMulAppC to a telosb binary
ncc -o build/telosb/main.exe -Os -O -mdisable-hwmul -Wall -Wshadow
-Wnesc-all -target=telosb -fnesc-cfile=build/telosb/app.c -board=
-DDEFINED_TOS_AM_GROUP=0x22 -DIDENT_APPNAME=\"TestMulAppC\"
-DIDENT_USERNAME=\"xubuntos\" -DIDENT_HOSTNAME=\"xubuntos-tinyos\"
-DIDENT_USERHASH=0x00f95284L -DIDENT_TIMESTAMP=0x4ec2f4a5L
-DIDENT_UIDHASH=0xb186c6f2L TestMulAppC.nc -lm <---- LM here !!!!!!!!!!!!
TestMulC.nc: In function `TestMulC$Boot$booted':
TestMulC.nc:22: warning: unused variable `m'
/tmp/ccIJqAuN.o: In function `EllipticCurveP$mtIsPrime':
app.c:(.text+0x6c0): undefined reference to `sqrt'
make: *** [exe0] Error 1
===========================================
I have included math.h in my program, and I've noticed that the -lm switch
is turned on, and I have even found the function declaration at ligne 62
in file /usr/msp430/include/math.h
===========================================
extern double sqrt _PARAMS((double));
===========================================
I don't understand why it cannot find sqrt function.
So can anyone help me out?
Best regards
--
Yanbo SHOU
Ph.D student Cartoon Team
Computer Science Laboratory of Franche-Comté
Office 420C
16 route de Gray
25 000 Besançon, France
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