The correct compilation command for that code is:
gcc -o test test.c -lm
Quoting Jeffrey Holle <jeffholle@xxxxxxxxxxxxx>:
> Your error is from the linker.
> I'd guess that you need to add "-lmath" to your gcc command line arguments.
>
> Raphael Fonseca wrote:
> > To GCC-GNU support team,
> >
> > please help me with the following problem:
> >
> > I installed gcc 3.4.1 in my linux PC directly through Mandrake version
> > 10.1.
> > (I just klicked twice in the gcc package program and did not configure
> > by myself).
> >
> > I can compile several programs, but I can not use math libraries.
> > Even with simple programs like:
> >
> > /* * Simple test program -- simplified version of sample test
> > hello.
> > */
> > #include <stdlib.h>
> > #include <stdio.h>
> > #include <math.h>
> >
> > int main(void)
> > {
> > double f;
> >
> > f = sin(0.1) ;
> > printf( "Hello World \n" );
> > printf( " %f \n", f);
> > return 0;
> > }
> >
> > When I try to compile with gcc -otest test.c it caused the
> > following error message:
> >
> > /home/raphael/tmp/ccUXVGLx.o(.text+0x2c): In function `main':
> > : undefined reference to `sin'
> > collect2: ld returned 1 exit status
> >
> > Without the "sin" function, the program is compiled and works.
> > I imagine the compiler can not find the include files (<math.h>).
> > I tried to put them in the test.c directory with no success in compilation.
> > Is there any configuration problem? How to solve it?
> >
> > Thank you,
> >
> > Raphael
> >
> >
>
>
>
