<file_sep>#include "foo.h"

int foo_add(int x, int y) {
        return x + y;
}

void foo_hello() {
        std::cout << "hello from foo\n";
}
<file_sep>#ifndef FOO_H
#define FOO_H

#include <iostream>

int foo_add(int x, int y);
void foo_hello();

#endif

<file_sep>bazel C++ example

build with:
bazel build //src/utils/bar:bar<file_sep>//#include "src/include/libfoo/foo.h" // works
#include "foo.h"

int main() {
        foo_hello();
        return foo_add(0, 0);
}
