Informix include files

Is there an include file that includes prototypes for all of the library functions supplied by Informix? When I run gcc over my Informix ESQL/C program I receive the following messages. I can't seem to find these functions in the supplied header files. Please respond via e-mail. Thanks in advance. dbn.ec:1204: warning: implicit declaration of function `byfill' dbn.ec:1224: warning: implicit declaration of function `dectoasc' dbn.ec:1227: warning: implicit declaration of function `rdatestr' dbn.ec:1237: warning: implicit declaration of function `stleng' dbn.ec:1298: warning: implicit declaration of function `rtypmsize' dbn.ec:1453: warning: implicit declaration of function `_iqdatabase' dbn.ec:2002: warning: cast to pointer from integer of different size dbn.ec:2141: warning: implicit declaration of function `_iqeximm' dbn.ec:2276: warning: implicit declaration of function `_iqprepare' dbn.ec:2287: warning: implicit declaration of function `_iqdscribe' dbn.ec:2291: warning: implicit declaration of function `_iqddclcur' dbn.ec:2302: warning: implicit declaration of function `_iqcopen' dbn.ec:2322: warning: implicit declaration of function `_iqnftch' dbn.ec:2327: warning: implicit declaration of function `_iqclose' dbn.ec:3404: warning: implicit declaration of function `_iqdbclose' dbn.ec:3420: warning: implicit declaration of function `_iqcommit' dbn.ec:3435: warning: implicit declaration of function `_iqrollback' dbn.ec:3450: warning: implicit declaration of function `_iqbeginwork' ./dbn.c:2: warning: `_SQ2' defined but not used Done ________ Mark A. Zurich \\ / Template Software zurich@template.com \\ / 13100 Worldgate Drive, Suite 340 uunet!template!zurich \\ / Herndon, VA 22070-4382 voice: 703-318-1000 \\/ fax:703-318-7378