casclib unicode mismatch detection

0001-detect_unicode_mismatch.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3d66ed2..b7d8c48 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -126,6 +126,8 @@ if(CASC_BUILD_SHARED_LIB)
     # On Win32, build CascLib.dll
     if(WIN32)
         set_target_properties(casc PROPERTIES OUTPUT_NAME CascLib)
+        add_library(casc_check_unicode OBJECT src/CascCheckUnicode.cpp)
+        add_custom_command(TARGET casc POST_BUILD COMMAND "${CMAKE_AR}" $<TARGET_IMPORT_FILE:casc> $<TARGET_OBJECTS:casc_check_unicode>)
     endif()
     target_compile_definitions(casc PUBLIC CASCLIB_NO_AUTO_LINK_LIBRARY CASCLIB_NODEBUG)
 endif()
diff --git a/src/CascCheckUnicode.cpp b/src/CascCheckUnicode.cpp
new file mode 100644
index 0000000..a487f0c
--- /dev/null
+++ b/src/CascCheckUnicode.cpp
@@ -0,0 +1,4 @@
+#define __CASCLIB_SELF__
+#include "CascLib.h"
+
+extern "C" int casclib_unicode_mismatch_check = 0;
diff --git a/src/CascLib.h b/src/CascLib.h
index 6936c05..30492fb 100644
--- a/src/CascLib.h
+++ b/src/CascLib.h
@@ -19,6 +19,17 @@
 #ifdef _MSC_VER
 #pragma warning(disable:4668)       // 'XXX' is not defined as a preprocessor macro, replacing with '0' for '#if/#elif'
 #pragma warning(disable:4820)       // 'XXX' : '2' bytes padding added after data member 'XXX::yyy'
+
+#ifdef _UNICODE
+#pragma detect_mismatch("CASCLIB_UNICODE", "1")
+#else
+#pragma detect_mismatch("CASCLIB_UNICODE", "0")
+#endif
+
+#ifndef __CASCLIB_SELF__
+#pragma comment( linker, "/INCLUDE:casclib_unicode_mismatch_check")
+#endif
+
 #endif
 
 #include "CascPort.h"