GCC compiling with <math.h>

[Strahd]

I have a unique problem here, well not actually a problem. Just something I am trying to understand.

I have a program that uses math.h and I am using pow().

I found that when I use GCC to compile (under a unix environment), I am able to do so without the -lm command, while some of my classmates are required to do so. As in, gcc -lm <programName> or gcc <programName> -lm.

My GCC is not under an, alias. And I don't know what else to supply as information, if you need more with commands to run, just ask.

I'm just trying to figure out why I do not need -lm while other folks do. Besides the different routes we used to get to the same problem, we solved that problem the same way, in using pow().

I understand that there may not be a true answer, as to why, but I'm just looking to some insight or options to look into.

Thank You

[GReaper]

Are you by any chance using the "-c" option?...

[manasij7479]

I just tested, and it seems than the math library is now linked by default.

[Strahd]

Are you by any chance using the "-c" option?...

I am not, just regular gcc <fileName.c>

[Strahd]

I just tested, and it seems than the math library is now linked by default.

Ahh ok that would make more sense then. A matter of GCC version numbers, lol.

[Salem]

Compile with -fno-builtin and see what happens.