Fix build for g++

src-tauri/build.rs

@@ -3,12 +3,12 @@ fn main() {
     .include("mhycrypto")
     .cpp(true)
 
-    .file("mhycrypto/aes.c")
+    .file("mhycrypto/aes.cpp")
     .file("mhycrypto/memecrypto.cpp")
     .file("mhycrypto/metadata.cpp")
     .file("mhycrypto/metadatastringdec.cpp")
 
-  .compile("mhycrypto");
+    .compile("mhycrypto");
 
   tauri_build::build()
 }

src-tauri/mhycrypto/aes.cpp

@@ -5,8 +5,11 @@
 // http://en.wikipedia.org/wiki/Rijndael_key_schedule
 // http://en.wikipedia.org/wiki/Rijndael_mix_columns
 // http://en.wikipedia.org/wiki/Rijndael_S-box
+
 // This code is public domain, or any OSI-approved license, your choice. No warranty.
 
+extern "C" {
+
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>
@@ -383,3 +386,5 @@ void oqs_mhy128_dec_c(const uint8_t *ciphertext, const void *_schedule, uint8_t
 	// Reverse the first Round
 	xor_round_key(plaintext, schedule, 0);
 }
+
+}

src-tauri/mhycrypto/aes.h

@@ -6,6 +6,8 @@
 #ifndef __OQS_AES_H
 #define __OQS_AES_H
 
+extern "C" {
+
 #include <stdint.h>
 #include <stdlib.h>
 
@@ -63,4 +65,6 @@ void OQS_AES128_ECB_enc_sch(const uint8_t *plaintext, const size_t plaintext_len
  */
 void OQS_AES128_ECB_dec_sch(const uint8_t *ciphertext, const size_t ciphertext_len, const void *schedule, uint8_t *plaintext);
 
+}
+
 #endif