libc/newlib/libc/sys/sh3eb/strstr.c

#include <sys/casio_syscalls.h>

DEFINE_CASIO_SYSCALL_FN_PTR(strstr, char*, (const char*, const char*), 0xE6F)

char* strstr(const char* str1, const char* str2) {
    return _strstr_ptr(str1, str2);
}