Fixed MXE builds, 2nd try

src/common/stringutils.cpp

@@ -25,6 +25,15 @@
 #include <vector>
 
 
+unsigned int StrUtils::HexStringToInt(const std::string& str)
+{
+    std::stringstream ss;
+    ss << std::hex << str;
+    unsigned int x;
+    ss >> x;
+    return x;
+}
+
 namespace
 {
 

src/common/stringutils.h

@@ -59,6 +59,9 @@ T FromString(const std::string &str, bool *ok = nullptr)
     return value;
 }
 
+//! Converts string of hex characters to int
+unsigned int HexStringToInt(const std::string& str);
+
 //! Replacement for sprintf()
 std::string Format(const char *fmt, ...);
 

src/level/parser/parserparam.cpp

@@ -23,6 +23,7 @@
 
 #include "common/logger.h"
 #include "common/make_unique.h"
+#include "common/stringutils.h"
 
 #include "common/resources/resourcemanager.h"
 
@@ -259,10 +260,10 @@ Gfx::Color CLevelParserParam::AsColor()
 
         try
         {
-            red = stoul(m_value.substr(1, 2), nullptr, 16);
-            green = stoul(m_value.substr(3, 2), nullptr, 16);
-            blue = stoul(m_value.substr(5, 2), nullptr, 16);
-            alpha = (m_value.length() == 9) ? stoul(m_value.substr(7, 2), nullptr, 16) : 1.0f;
+            red = StrUtils::HexStringToInt(m_value.substr(1, 2));
+            green = StrUtils::HexStringToInt(m_value.substr(3, 2));
+            blue = StrUtils::HexStringToInt(m_value.substr(5, 2));
+            alpha = (m_value.length() == 9) ? StrUtils::HexStringToInt(m_value.substr(7, 2)) : 1.0f;
         }
         catch (...)
         {