Fix CI-CD feedback (round 4)

Fix some compiler warnings I found while inspecting build logs.

Author: hiddenalpha

src/main/cpp/_nix_based/jssc.cpp

@@ -60,7 +60,16 @@
 #include <jssc_SerialNativeInterface.h>
 #include "version.h"
 
-//#include <iostream> //-lCstd use for Solaris linker
+#if defined(_MSC_VER) && _MSC_VER < 1800
+#   define PRIsz "Iu"
+#   define PRIssz "Id"
+#elif defined(__MINGW32__) && !defined(__MINGW64__)
+#   define PRIsz "u"
+#   define PRIssz "d"
+#else
+#   define PRIsz "zu"
+#   define PRIssz "zd"
+#endif
 
 /*
  * Get native library version
@@ -672,7 +681,7 @@ JNIEXPORT jbyteArray JNICALL Java_jssc_SerialNativeInterface_readBytes
     lpBuffer = (jbyte*)malloc(byteCount*sizeof*lpBuffer);
     if( !lpBuffer ){
         char emsg[32]; emsg[0] = '\0';
-        snprintf(emsg, sizeof emsg, "malloc(%ld) failed", byteCount*sizeof*lpBuffer);
+        snprintf(emsg, sizeof emsg, "malloc(%" PRIsz ") failed", byteCount*sizeof*lpBuffer);
         jclass exClz = env->FindClass("java/lang/RuntimeException");
         if( exClz ) env->ThrowNew(exClz, emsg);
         returnArray = NULL; goto Finally;

src/main/cpp/windows/jssc.cpp

@@ -33,8 +33,8 @@
 #   define PRIsz "Iu"
 #   define PRIssz "Id"
 #elif defined(__MINGW32__) && !defined(__MINGW64__)
-#   define PRIsz "lu"
-#   define PRIssz "ld"
+#   define PRIsz "u"
+#   define PRIssz "d"
 #else
 #   define PRIsz "zu"
 #   define PRIssz "zd"