This is made to prevent compiler warnings.

as then we include the memdebug.h header from the lib dir, and it then
requires this type... (fails on IRIX 6.5 without this)

make this better on more systems.

Vanem

included. (a Dan Fandrich fix)

same code as the library uses for its internal function. Thus the captical
C in the beginning.

arguments in a config file without a required parameter!

now errors out if built with off_t > 32 bits but without strtoll()

other curl code

help if libz is available using #ifdef in the source instead, to allow the
distributed source code to be easier built with compressed help text.