because it is not only platform independent
but also allows to override the build date
This helps to make tigervnc builds reproducible
See https://reproducible-builds.org/ for why this is good
Also adds UTC flag, to be independent of timezone.
Also changes JAVA_DATE format to ISO-8601 date format.
Requires cmake-2.8.11+ from 2013
We don't modify the link interface directly so these warnings are
just useless noise. We could in theory use the new naming instead,
but at least CMake 2.8.12 is buggy and screws up the link when that
policy is active.
On some systems, the build was picking up jpeglib.h from the system
include directories, and if the system's version of libjpeg[-turbo] used
a different API/ABI version than the one specified in JPEG_LIBRARY, this
led to a "Wrong JPEG library version" error at run time.
Useful for debugging memory leaks and access violations. It is
not available on Windows though, and there is some problem compiling
ObjectiveC++ with it turned on.
Assume debug builds means it's a developer working on TigerVNC
rather than a user just compiling it. At that point we should not
accept any new warnings in the code.
This allows us to simplify things by getting rid of some old
compatibility code. People should really be using current versions
of GnuTLS anyway to stay secure.
It's much more difficult to test for this on Windows since the
headers have version guards. Just play it safe and assume it is
missing. We can remove this check when we raise the base requirements
to Vista (or newer).
GnuTLS can have different crypto backends, and it is rarely gcrypt
these days. So we should not be including that unconditionally,
and should not be pointing people at it either. Also remove the
section about Win32 binaries as those are out of date and probably
insecure. Lastly remove the section about static builds as it is
a general issue and in no way complete with just the GnuTLS portions.
We don't want to lose the checks performed by assert() in release builds
so make sure we remove NDEBUG. Based on work by Tim Waugh for Red Hat.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@5168 3789f03b-4d11-0410-bbf8-ca57d06f2519
Fixes problems with cmake detection of GnuTLS. The current CMakeLists.txt uses check_function_exists to identify legacy versions of GnuTLS but cmake performs this test by linking a small test program. If libgnutls, libgcrypt, or libgpg-error are outside the default library search path, linking the test program fails even though gnutls and it's dependencies are installed. This patch makes it possible to specify the location of each of the three libraries independently and only as needed.
Fl::screen_work_area() was added after FLTK 1.3.0, so we need to have
checks that it is actually present on the current system.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@5008 3789f03b-4d11-0410-bbf8-ca57d06f2519
Remove the in-tree versin of FLTK. Maintaining such a copy is way too
much work, and it's constantly out of sync. Let's document what the
main developers (ie Cendio) are using instead.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4951 3789f03b-4d11-0410-bbf8-ca57d06f2519
Bernhard M. Wiedemann
Pierre Ossman
Peter Åstrand (astrand)
Joel Teichroeb
DRC
Tim Waugh
Brian Hinz