Fix OSX builds (maybe?)

Author: v0l

include/radio_tool/codeplug/rdt_general.hpp

@@ -68,13 +68,13 @@ namespace radio_tool::codeplug
             intro_line2.shrink_to_fit();
         }
 
-        auto ToString() const -> const std::u16string
+        auto ToString() const -> const std::wstring
         {
-            std::basic_stringstream<char16_t> out;
+            std::basic_stringstream<wchar_t> out;
 
             out 
-                << "Intro 1: " << intro_line1 << std::endl
-                << "Intro 2: " << intro_line2; //<< std::endl;
+                << "Intro 1: " << std::wstring(intro_line1.begin(), intro_line1.end()) << std::endl
+                << "Intro 2: " << std::wstring(intro_line2.begin(), intro_line2.end()); //<< std::endl;
 
             return out.str();
         }

src/tyt_radio.cpp

@@ -61,7 +61,7 @@ auto TYTRadio::WriteFirmware(const std::string &file) const -> void
         auto b_offset = 0u;
         flash::FlashUtil::AlignedContiguousMemoryOp(flash::STM32F40X, r.address, r.address + r.size, [this, &fw, &r, &TransferSize, &b_offset](const uint32_t &addr, const uint32_t &size, const flash::FlashSector &sector) {
             const auto& binary_data = r.data;
-            const auto blocks = (int)std::ceil(size / (double)TransferSize);
+            const auto blocks = (int)ceil(size / (double)TransferSize);
 
             std::cerr << "Writing: 0x" << std::setw(8) << std::setfill('0') << std::hex << addr
                       << " [Size=0x" << std::hex << size << "]" << std::endl;