Build fail in MinGW

[smpn2]

Of course, I understand that it is better to build it in an Docker environment, but because of RapidJSON, it cannot be built with the latest MinGW toolchain.

Please apply this patch or update libs.

diff --git a/external/rapidjson/document.h b/external/rapidjson/document.h
index 151f5de..12a98ee 100644
--- a/external/rapidjson/document.h
+++ b/external/rapidjson/document.h
@@ -329,7 +329,7 @@ struct GenericStringRef {
     operator const Ch *() const { return s; }
 
     const Ch* const s; //!< plain CharType pointer
-    const SizeType length; //!< length of the string (excluding the trailing NULL terminator)
+    unsigned int length; //!< length of the string (excluding the trailing NULL terminator)
 
 private:
     //! Disallow construction from non-const array

Step by reproduce:

• Install MSYS2
• $ pacman -Syu
• $ pacman -S mingw-w64-x86_64-toolchain mingw-w64-i686-toolchain
• Open CLion and configure toolchain.
• Build

[sp2xdev]

This needs a better fix than modifying the library (which hasn't been updated since 2016) - see the code around RAPIDJSON_NO_SIZETYPEDEFINE in the rapidjson.

[smpn2]

@sp2xdev
Yes. I understand that patching the library is a last resort.
It seems to be a bug. Tencent/rapidjson#2277

I thought it would be smart to update RapidJSON to the latest (https://github.com/Tencent/rapidjson/tree/7c73dd7de7c4f14379b781418c6e947ad464c818) version.

Changes-On-56ac55.patch

[sp2xdev]

I can integrate Tencent/rapidjson#719 soon which is the actual fix in rapidjson.