SQLite lesson Fourth Creating a Windows dynamic Library

Download the source code package of two:

Sqlite-dll-win32-x86-3081101.zip, which provides a file that exports sqlite3 functions sqlite3.def

primarily used to generate LIB file to determine the link usage

Sqlite-preprocessed-3081101.zip, provided source files, but delete shell.c and tclsqlite3.c files

1. New Win32 console program, name sqlite3

2. Select Build DLL

3. unzip the tarball and copy the sqlite-preprocessed-3081101 files to the project folder (except shell.c and tclsqlite.c).

4. Add the source to the compiled project by adding the existing file

5 Set the module definition file sqlite3.def, otherwise the generated DLL does not have a corresponding lib

7. add pre-defined options sqlite_core,sqlite_enable_column_metadata,sqlite_enable_rtree, this is sqlite3 the macro definition.

8. Press F7 to generate the appropriate DLLs and Lib.

Compile small details:

Specify the function's export file:sqlite3.defs

Properties "linker" input "module definition file (sqlite3.def), note that in this case,the sqlite3.def file and the compilation environment are peer.

consequence: sqlite3.lib files are not generated

To specify a precompiled macro:

Properties " C + + "preprocessor" "pre-definition"

Sqlite_core

Sqlite_enable_column_metadata

Sqlite_enable_rtree

Consequences:

1>sqlite3.def:e unresolved external symbol sqlite3_column_database_name

1>sqlite3.def:error LNK2001: Unresolved external symbol Sqlite3_column_database_name16

1>sqlite3.def:error LNK2001: Unresolved external symbol sqlite3_column_origin_name

1>sqlite3.def:error LNK2001: Unresolved external symbol Sqlite3_column_origin_name16

1>sqlite3.def:error LNK2001: Unresolved external symbol sqlite3_column_table_name

1>sqlite3.def:error LNK2001: Unresolved external symbol Sqlite3_column_table_name16

1>sqlite3.def:error LNK2001: Unresolved external symbol Sqlite3_rtree_geometry_callback

1>sqlite3.def:error LNK2001:  external symbols unresolved Sqlite3_rtree_query_ Callback

front 6 functions, you must define the Sqlite_enable_ Column_metadata Sqlite3.def file deleted, not exported

after 2 functions, you must define the Sqlite_enable_rtree to be able to export the function, if we do not apply R -Tree Spatial search function, these functions, we can directly in the Sqlite3.def files are removed, not exported

SQLite lesson Fourth Creating a Windows dynamic Library