The Informix general libraries

The following is a list of the HCL Informix® general libraries for Informix ESQL/C on a UNIX operating system.

libgen: Contains functions for general tasks.
libos: Contains functions for tasks that are required from the operating system.
libsql: Contains functions that send SQL statements between client application and database server.
libgls: Contains functions that provide Global Language Support (GLS) to HCL Informix products.
libasf: Contains functions that handle communication protocols between client application and database server.

Informix general libraries are in the $INFORMIXDIR/lib/esql and $INFORMIXDIR/lib directories on UNIX operating systems.

The Informix general library for Informix ESQL/C for Windows is just one DLL named isqlt09a.dll. The file is in the %INFORMIXDIR%\lib directory.

The static library for Informix ESQL/C for Windows is named isqlt09s.lib. The file is in the $INFORMIXDIR/lib directory.

On many platforms there is a system library named libgen.a. To avoid compilation errors, it is recommended that you do not use the libgen.a Informix library. Instead, use libifgen.a Informix library which contains a symbolic link to libgen.a.