ld finds no floor() function in glibc

arthur_mueller · 2004-10-23 07:58:41

Hi,

I'm currently trying to write a simple program in C for converting astronomy coordinates. But during the compile time ld allways returns:

time.o(.text+0x963): In function `julian_date':
/home/user/astro/time.c:269: undefined reference to `floorf'
time.o(.text+0x980):/home/user/astro/time.c:269: undefined reference to `floor'
collect2: ld returned 1 exit status

if I'm using floor() or any other function from <math.h> listed here. ld also can't find ceil() , floorf() and so on.

I've tried to repacman my glic, but without any result. ld returns the same error. Currenty I have glibc-2.3.2-3 installed.

Thanks

kpiche · 2004-10-23 09:20:50

Floor is in the libm library so you need to add the link option -lm to your gcc command.

arthur_mueller · 2004-10-23 20:21:41

Thanks

Arch Linux

#1 2004-10-23 07:58:41

ld finds no floor() function in glibc

#2 2004-10-23 09:20:50

Re: ld finds no floor() function in glibc

#3 2004-10-23 20:21:41

Re: ld finds no floor() function in glibc

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