* src/sqlite.c (sqlite3_db_config) [WINDOWSNT]: Load from the DLL.
(Fsqlite_load_extension): Use 'sqlite3_db_config' to enable and
disable loading of extensions. Add a few free extensions to the
allow-list. Fix testing for the ".dll" extension. (Bug#63590)
* test/src/sqlite-tests.el (sqlite-load-extension): Fix the test
to require successful load if the extension does exist.
* test/src/inotify-tests.el (inotify-rm-watch):
* test/src/lcms-tests.el (lcms-xyz->jch):
* test/src/sqlite-tests.el (sqlite-open):
Add declarations to prevent byte-compilation warnings when features
are absent.
* configure.ac: Add check for the sqlite library.
* doc/lispref/text.texi (Database): Document it.
* lisp/sqlite.el: New file.
* lisp/term/w32-win.el (dynamic-library-alist): Add a mapping.
* src/Makefile.in (SQLITE3_LIBS): Add the libraries.
* src/alloc.c (union emacs_align_type): Add a Lisp_Sqlite struct.
* src/data.c (Ftype_of): Add sqlite.
* src/emacs.c (main): Load the syms.
* src/lisp.h (DEFINE_GDB_SYMBOL_BEGIN): Add PVEC_SQLITE.
(GCALIGNED_STRUCT): New struct to keep data for sqlite database
objects and statement objects.
(SQLITEP, SQLITE, CHECK_SQLITE, XSQLITE): New macros for accessing
the objects.
* src/pdumper.c (dump_vectorlike): Update hash.
(dump_vectorlike): Don't dump it.
* src/print.c (print_vectorlike): Add a printer for the sqlite
object.
* src/sqlite.c: New file.
* test/src/sqlite-tests.el: Add tests.
