Search code examples
c++cstatic-librariesstandard-library

Calling a method in a static library

I'm trying to write a C standard library from scratch on OSX with gcc. When I try to include a header file from my library in my test program, I get the error that it isn't defined. I try to use the -nostdlib flag but I still can't include my file.

My test program:

#include <math.h>
#include <bool.h>
#include <ctype.h>
#include <string.h>
#include <io.h>

int main(){
    int x = sin(0.5);
    int y = pow(2,3);
    int z = abs(12);
    myiofunction(7);
    exit(0);
}

math.h,bool.h,ctype.h,string.h, and io.h are defined in my library. What am I doing incorrectly?

EDIT: The error message that I am getting is:

helloTest.c:10:10: fatal error: 'bool.h' file not found
Solution

  • Header files aren't compiled into a static library. They have to be available to both library and program.

    Therefore, when compiling your program, make sure to specify the -I options to let the compiler find your library's header files.