unable to 'make' curl library

[research]

I'm not able to 'make', i get the following errors :

In file included from base64.c:35:
setup.h:58:21: error: vxWorks.h No such file or directory
setup.h:58:21: error: sockLib.h No such file or directory
setup.h:58:21: error: hostLib.h No such file or directory
In file included from ../include/curl/mprintf.h:29,
from base64.c:41
../include/curl/curl.h:1451:70: error: easy.h: No such file or directory