SQLite Bedrock amalgamation for embedded mode

[pavanmbit]

Hi team

Context: I want to use Begin Concurrent and WAL2 in my Golang project in embedded mode.

Can I safely use the https://github.com/sqlite/sqlite/tree/bedrock branch for Begin Concurrent and WAL2? This branch works fine but wanted to know if its being maintained either by you guys or sqlite team.

And also, I tried using the sqlite.c and .h files from libstuff folder for hctree version but I get build errors on mac.
Am I missing something? I am assuming sqlite.c and .h are no change replacements for original sqlite amalgamation.

sqlite3.c:268651:23: warning: redefinition of typedef 'i64' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:15526:22: note: previous definition is here
sqlite3.c:268652:23: warning: redefinition of typedef 'u8' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:15531:20: note: previous definition is here
sqlite3.c:268653:22: warning: redefinition of typedef 'u32' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:15528:21: note: previous definition is here
sqlite3.c:269053:24: warning: redefinition of typedef 'HctFile' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:268869:24: note: previous definition is here
sqlite3.c:269393:27: warning: redefinition of typedef 'HctJournal' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:269190:27: note: previous definition is here
sqlite3.c:269568:27: warning: redefinition of typedef 'HctJournal' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:269393:27: note: previous definition is here
sqlite3.c:276081:30: warning: redefinition of typedef 'HctFileServer' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:268868:30: note: previous definition is here
sqlite3.c:278482:37: warning: passing 'u8 *' (aka 'unsigned char *') to parameter of type 'char *' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign]
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/mman.h:258:45: note: passing argument to parameter here
sqlite3.c:278942:28: warning: redefinition of typedef 'HctDatabase' is a C11 feature [-Wtypedef-redefinition]
sqlite3.c:269390:28: note: previous definition is here
sqlite3.c:287655:9: error: expected expression
sqlite3.c:287657:68: error: use of undeclared identifier 'n'

Thanks

[pavanmbit]

Ok, I got the issue, seems like missing brace encapsulation for default block. That fixed the build issue and code ran fine.
But still, it would really help if you can answer my other questions.

1. https://github.com/sqlite/sqlite/tree/bedrock are you guys maintaining this? There are quite frequent and recent updates to it from user drh.
2. Can I use https://github.com/Expensify/Bedrock/blob/main/libstuff/sqlite3.c as drop in replacement for original amalgamation?
3. Are all of Begin Concurrent, WAL2 and HCTree still experimental features?

[northeastprince]

Would love to know this too - Bedrock seems like it can do concurrent writes but I'd love to see if you can use those same modifications that make it possible elsewhere since hctree isn't production-ready yet.