I'm having issues buidling projects with rust, my lib.rs only has this
use near_sdk::borsh::{self, BorshDeserialize, BorshSerialize};
use near_sdk::{env, near_bindgen};
near_sdk::setup_alloc!();
#[near_bindgen]
#[derive(Default, BorshDeserialize, BorshSerialize)]
pub struct Counter {
// See more data types at https://doc.rust-lang.org/book/ch03-02-data-types.html
val: i8, // i8 is signed. unsigned integers are also available: u8, u16, u32, u64, u128
}
#[near_bindgen]
impl Counter {
pub fn get_num(&self) -> i8 {
return self.val;
}
self.val += 1;
let log_message = format!("Increased number to {}", self.val);
env::log(log_message.as_bytes());
after_counter_change();
}
pub fn decrement(&mut self) {
self.val -= 1;
let log_message = format!("Decreased number to {}", self.val);
env::log(log_message.as_bytes());
after_counter_change();
}
pub fn reset(&mut self) {
self.val = 0;
// Another way to log is to cast a string into bytes, hence "b" below:
env::log(b"Reset counter to zero");
}
}
fn after_counter_change() {
// show helpful warning that i8 (8-bit signed integer) will overflow above 127 or below -128
env::log("Make sure you don't overflow, my friend.".as_bytes());
}
when i run RUSTFLAGS='-C link-arg=-s' cargo build --target wasm32-unknown-unknown --release i get this error:
error: linker
cc
not found | = note: No such file or directory (os error 2)error: could not compile
proc-macro2
due to previous error
if i add proc-macro2 to the dependecy, the error changes to cannot compile ...'other dependency' and it keeps adding new ones as i try to solve it adding them to Cargo.toml
[package]
name = "contract"
version = "0.1.0"
authors = ["Near Inc <hello@nearprotocol.com>"]
edition = "2021"
[lib]
crate-type = ["cdylib", "rlib"]
[dependencies]
near-sdk = "=4.0.0-pre.4"
[profile.release]
codegen-units=1
opt-level = "z"
lto = true
debug = false
panic = "abort"
overflow-checks = true
any help?