fix(npm): support compiling on linux/aarch64 (#16208)

Changes introduced in #13633 have broken the ability to compile for
linux/aarch64 - specifically the use of a `i8` as a char type, which is
an `u8` on linux/aarch64.

This PR:
- Replaces instances of `i8` with the architecture-aware wrapper type
`c_char`
- Skips the use of `--export-dynamic-symbol` on linux-aarch64, because
the target environments often rely on older libc/binutils versions

4 files changed, 10 insertions, 9 deletions

diff --git a/test_napi/src/async.rs b/test_napi/src/async.rs
index d14871a7c..53432de7c 100644
--- a/test_napi/src/async.rs
+++ b/test_napi/src/async.rs
@@ -3,7 +3,7 @@
 use napi_sys::Status::napi_ok;
 use napi_sys::ValueType::napi_function;
 use napi_sys::*;
-use std::os::raw::c_void;
+use std::os::raw::{c_char, c_void};
 use std::ptr;
 
 pub struct Baton {
@@ -62,7 +62,7 @@ extern "C" fn test_async_work(
     unsafe {
       napi_create_string_utf8(
         env,
-        "test_async_resource\0".as_ptr() as *const i8,
+        "test_async_resource\0".as_ptr() as *const c_char,
         usize::MAX,
         &mut resource_name,
       )
diff --git a/test_napi/src/lib.rs b/test_napi/src/lib.rs
index dd0c7cbed..569256a0b 100644
--- a/test_napi/src/lib.rs
+++ b/test_napi/src/lib.rs
@@ -42,7 +42,7 @@ macro_rules! get_callback_info {
 macro_rules! new_property {
   ($env: expr, $name: expr, $value: expr) => {
     napi_property_descriptor {
-      utf8name: $name.as_ptr() as *const i8,
+      utf8name: $name.as_ptr() as *const std::os::raw::c_char,
       name: ptr::null_mut(),
       method: Some($value),
       getter: None,
diff --git a/test_napi/src/object_wrap.rs b/test_napi/src/object_wrap.rs
index 3b849b2dc..a38f97c9c 100644
--- a/test_napi/src/object_wrap.rs
+++ b/test_napi/src/object_wrap.rs
@@ -3,7 +3,7 @@
 use napi_sys::Status::napi_ok;
 use napi_sys::ValueType::napi_number;
 use napi_sys::*;
-use std::os::raw::c_void;
+use std::os::raw::{c_char, c_void};
 use std::ptr;
 
 pub struct NapiObject {
@@ -146,7 +146,7 @@ pub fn init(env: napi_env, exports: napi_value) {
       napi_set_named_property(
         env,
         exports,
-        "NapiObject\0".as_ptr() as *const i8,
+        "NapiObject\0".as_ptr() as *const c_char,
         cons,
       )
     } == napi_ok
diff --git a/test_napi/src/properties.rs b/test_napi/src/properties.rs
index 89d95d6c6..b245fd61d 100644
--- a/test_napi/src/properties.rs
+++ b/test_napi/src/properties.rs
@@ -3,6 +3,7 @@
 use napi_sys::PropertyAttributes::*;
 use napi_sys::Status::napi_ok;
 use napi_sys::*;
+use std::os::raw::c_char;
 use std::ptr;
 
 pub fn init(env: napi_env, exports: napi_value) {
@@ -15,7 +16,7 @@ pub fn init(env: napi_env, exports: napi_value) {
     unsafe {
       napi_create_string_utf8(
         env,
-        "key_v8_string".as_ptr() as *const i8,
+        "key_v8_string".as_ptr() as *const c_char,
         usize::MAX,
         &mut name_value,
       )
@@ -29,7 +30,7 @@ pub fn init(env: napi_env, exports: napi_value) {
     unsafe {
       napi_create_string_utf8(
         env,
-        "key_v8_symbol".as_ptr() as *const i8,
+        "key_v8_symbol".as_ptr() as *const c_char,
         usize::MAX,
         &mut symbol_description,
       )
@@ -42,7 +43,7 @@ pub fn init(env: napi_env, exports: napi_value) {
 
   let properties = &[
     napi_property_descriptor {
-      utf8name: "test_property_rw\0".as_ptr() as *const i8,
+      utf8name: "test_property_rw\0".as_ptr() as *const c_char,
       name: ptr::null_mut(),
       method: None,
       getter: None,
@@ -52,7 +53,7 @@ pub fn init(env: napi_env, exports: napi_value) {
       value: number,
     },
     napi_property_descriptor {
-      utf8name: "test_property_r\0".as_ptr() as *const i8,
+      utf8name: "test_property_r\0".as_ptr() as *const c_char,
       name: ptr::null_mut(),
       method: None,
       getter: None,