diff --git a/cross-compile/freedv-mingw-llvm-aarch64.cmake b/cross-compile/freedv-mingw-llvm-aarch64.cmake
index cc9d603e..763b10a0 100644
--- a/cross-compile/freedv-mingw-llvm-aarch64.cmake
+++ b/cross-compile/freedv-mingw-llvm-aarch64.cmake
@@ -13,7 +13,7 @@ set(CMAKE_RC_COMPILER ${triple}-windres)
 
 set(CMAKE_C_FLAGS -gcodeview)
 set(CMAKE_CXX_FLAGS -gcodeview)
-set(CMAKE_EXE_LINKER_FLAGS -Wl,--pdb=)
+set(CMAKE_EXE_LINKER_FLAGS -Wno-unused-command-line-argument -Wl,--pdb=)
 
 # For make package use.
 set(CMAKE_OBJDUMP ${triple}-objdump)
diff --git a/cross-compile/freedv-mingw-llvm-armv7.cmake b/cross-compile/freedv-mingw-llvm-armv7.cmake
index 8445e23c..cb8155ac 100644
--- a/cross-compile/freedv-mingw-llvm-armv7.cmake
+++ b/cross-compile/freedv-mingw-llvm-armv7.cmake
@@ -14,7 +14,7 @@ set(CMAKE_RC_COMPILER ${triple}-windres)
 
 set(CMAKE_C_FLAGS -gcodeview)
 set(CMAKE_CXX_FLAGS -gcodeview)
-set(CMAKE_EXE_LINKER_FLAGS -Wl,--pdb=)
+set(CMAKE_EXE_LINKER_FLAGS -Wno-unused-command-line-argument -Wl,--pdb=)
 
 # For make package use.
 set(CMAKE_OBJDUMP ${triple}-objdump)
diff --git a/cross-compile/freedv-mingw-llvm-i686.cmake b/cross-compile/freedv-mingw-llvm-i686.cmake
index 2322b531..12bc86ee 100644
--- a/cross-compile/freedv-mingw-llvm-i686.cmake
+++ b/cross-compile/freedv-mingw-llvm-i686.cmake
@@ -14,7 +14,7 @@ set(CMAKE_RC_COMPILER ${triple}-windres)
 
 set(CMAKE_C_FLAGS -gcodeview)
 set(CMAKE_CXX_FLAGS -gcodeview)
-set(CMAKE_EXE_LINKER_FLAGS -Wl,--pdb=)
+set(CMAKE_EXE_LINKER_FLAGS -Wno-unused-command-line-argument -Wl,--pdb=)
 
 # For make package use.
 set(CMAKE_OBJDUMP ${triple}-objdump)
diff --git a/cross-compile/freedv-mingw-llvm-x86_64.cmake b/cross-compile/freedv-mingw-llvm-x86_64.cmake
index 4e1972a4..87cd46ee 100644
--- a/cross-compile/freedv-mingw-llvm-x86_64.cmake
+++ b/cross-compile/freedv-mingw-llvm-x86_64.cmake
@@ -14,7 +14,7 @@ set(CMAKE_RC_COMPILER ${triple}-windres)
 
 set(CMAKE_C_FLAGS -gcodeview)
 set(CMAKE_CXX_FLAGS -gcodeview)
-set(CMAKE_EXE_LINKER_FLAGS -Wl,--pdb=)
+set(CMAKE_EXE_LINKER_FLAGS -Wno-unused-command-line-argument -Wl,--pdb=)
 
 # For make package use.
 set(CMAKE_OBJDUMP ${triple}-objdump)
diff --git a/src/serialport.cpp b/src/serialport.cpp
index 3d04295a..8f2e418a 100644
--- a/src/serialport.cpp
+++ b/src/serialport.cpp
@@ -127,7 +127,27 @@ bool Serialport::openport(const char name[], bool useRTS, bool RTSPos, bool useD
 	    return true;
 	
 error:
-	    if (g_verbose) fprintf(stderr, "%s failed\n", lpszFunction);
+	    if (g_verbose)
+        {
+#ifdef UNICODE
+            std::vector<char> buffer;
+            std::string errFn = "[Unknown Function]"
+            int size = WideCharToMultiByte(CP_UTF8, 0, text, -1, NULL, 0, NULL, NULL);
+            if (size > 0) 
+            {
+                buffer.resize(size);
+                WideCharToMultiByte(CP_UTF8, 0, text, -1, static_cast<BYTE*>(&buffer[0]), buffer.size(), NULL, NULL);
+                errFn = std::string(&buffer[0]);
+            }
+            else 
+            {
+                // Error handling, probably shouldn't reach here
+            }
+            fprintf(stderr, "%s failed\n", errFn.c_str());
+#else
+            fprintf(stderr, "%s failed\n", lpszFunction);
+#endif // UNICODE
+        }
 	
         // Retrieve the system error message for the last-error code