making them available to any source code file which includes "setup.h".

Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno
(or equivalent) on this platform to hide platform details to code using it.

Macro ERRNO / SET_ERRNO() returns / sets the NOT *socket-related* errno
(or equivalent) on this platform to hide platform details to code using it.

FD_ISSET, and FD_ZERO macros emits warnings #1469 and #593.
So for icc 9.0 we also ignore warnings #1469 and #593.
* 593 warns on "variable __d0 was set but never used"
* 1469 warns on "cc clobber ignored"

build targets when --disable-verbose is specified.

macro to provide this functionality on all platforms

dependencies to applications.

retrying upon EINTR errors.

the left side of @ to make it short(er).

  gmtime_r() like the older VC versions. He also made use of some machine-
  specific defines to differentiate the "OS" define.

provide a suitable replacement for use in our ISBLANK macro

DNS from /etc/nsswitch.conf, /etc/host.conf or /etc/svc.conf when
/etc/resolv.conf did not exist or was unable to read it.

SSL/TLS layer. http://www.mozilla.org/projects/security/pki/nss/

  to the debug callback.

- Shmulik Regev added CURLOPT_HTTP_CONTENT_DECODING and
  CURLOPT_HTTP_TRANSFER_DECODING that if set to zero will disable libcurl's
  internal decoding of content or transfer encoded content. This may be
  preferable in cases where you use libcurl for proxy purposes or similar. The
  command line tool got a --raw option to disable both at once.

as a bugfix here ;-)

  that has an easy handle present in the "closure" list pending closure.

to primarily be used for the autobuilds to know from what point in time a particular tarball
is, and thus what changes it contains (or not).

instead focus on explaining on how the libs differ from each other

list of source files for those tests that use it. Otherwise testutil.h
might not be found by the compiler.

part of the official libcurl API http://curl.haxx.se/lxr/source/lib/README.curlx
The documented way of using them would be to use timeval.c as a source code file.

The above described method works very well when statically linking libcurl and
apps, test programs, but has several drawbacks when you build a true shared
libcurl (i.e. Name space clash at linkage stage as functions are defined more
than once. Windows makefiles are not capable of handling this system of
source-level sharing)

So...

Now testutil.h and testutil.c define and implement tutil_tvnow and tutil_tvdiff
which replace curlx_tvnow and curlx_tvdiff for the libtest programs. Doing this
we avoid the above described problems, and the code in the testsuite does not
impose the need to keep those functions public in libcurl even when not part of
the API.

part of the official libcurl API http://curl.haxx.se/lxr/source/lib/README.curlx
The documented way of using them would be to use timeval.c as a source code file.

The above described method works very well when statically linking libcurl and
apps, test programs, but has several drawbacks when you build a true shared
libcurl (i.e. Name space clash at linkage stage as functions are defined more
than once. Windows makefiles are not capable of handling this system of
source-level sharing)

So...

Now testutil.h and testutil.c define and implement tutil_tvnow and tutil_tvdiff
which replace curlx_tvnow and curlx_tvdiff for the libtest programs. Doing this
we avoid the above described problems, and the code in the testsuite does not
impose the need to keep those functions public in libcurl even when not part of
the API.