* doc/lispref/text.texi (Database): Document it.
* src/sqlite.c (Fsqlite_pragma): Add a separate command for
pragmas. These can be done via sqlite-execute, but it's less
confusing to have them in a separate command.
* src/sqlite.c (Fsqlite_execute): Use it.
(syms_of_sqlite): Introduce a new error for locked databases so
that we can catch that condition on higher levels.
* src/sqlite.c (Fsqlite_open): Signal an error if
'init_sqlite_functions' fails. Encode FILE using UTF-8.
(Fsqlite_close, Fsqlite_execute, Fsqlite_select)
(Fsqlite_load_extension): Doc fixes.
(Fsqlite_load_extension): Encode MODULE using UTF-8.
* src/sqlite.c (sqlite_loaded_p): Function deleted: not used
anymore.
(init_sqlite_functions) [WINDOWSNT]: Use a static 'bool' variable
to indicate if sqlite3 DLL was successfully loaded.
(Fsqlite_available_p) [WINDOWSNT]: Just call
'init_sqlite_functions' if Vlibrary_cache doesn't mention
'sqlite3'.
* configure.ac: Check for sqlite3_load_extension, which is
apparently missing in some versions.
* src/sqlite.c: Add guards.
(Fsqlite_load_extension): Ifdef out on systems that doesn't have it.
* 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.
