NEWS

1.4
- scheduler assigns jobs with larger priority first, so compilations with higher 'nice' value
  do not interfere with normal compilations
- avoid large timeouts if there is a network problem
- support for -march/-mcpu/-mtune used with =native (proper specific flags will be substituted)
- support for Clang's -fmodules, by removing the -fmodules flag for remote compilation
- do not keep host lock when sending preprocessed source (reduces chance of network timeouts)
- send more jobs in advance to nodes with many CPU cores
- try to use larger network buffers
- force local compilations if --coverage is used
- correctly clean up caches
- handle properly the case when something removes files in the cache directory

1.3
- remove hardcoded compiler paths (compiler tarball is created with the same compiler that is used for build)
- avoid build overloading by limiting number of local preprocessing runs to local CPUs available
- fix Objective C/C++ support
- fix job preloading to again allow sending one extra job to a fully busy node
- use libarchive to handle archives instead of using tar
- support xz and zstd compression for compiler tarballs (improved speed/size)
- use zstd compression when sending network data, if possible (improved speed)
- improve speed of creating compiler tarballs
- more robust handling of receiving compiler tarballs
- default cache size for compiler environments has been increased to 256MiB
- path handling fixes
- platforms improvements in icecc-create-env
- fix memory detection on MacOSX
- improve local performance when -include-pch is used
- simplify PCH handling
- fix keeping order of compiler debug arguments, especially -gsplit-dwarf
- better support for assembler and preprocessor flags when building the Linux kernel
- force local rebuild if local preprocessing fails (works around some GCC -fdirectives-only problems)
- limit -fdirectives-only workarounds only to cases when it is used
- improved handling of network timeouts
- avoid a timeout when the scheduler cannot find any suitable host for building
- if ICECC_SLOW_NETWORK=1 is set, sending network data is split into smaller chunks
- --interface option allows restricting which network interface daemons will use
- improved debug logs
- release builds are built without assert checks, use --enable-debug for developer builds
- added a manual page for icerun

1.2
 - Add more compiler flags to the list that mean build locally
   * -pedantic (preprocessing only)
   * -pedantic-errors (preprocessing only)
   * -fsyntax-only
 - don't force local compile on -include-pch 
 - Make load calculation better
 - Limit amount of data sent at one time for slow networks/remotes
 - Many updates to the tests
 - Better logs of some error conditions
 - Build locally if it is likely that there will not be more compiles
 - Support adding gcc and clang to the same environment
 - Better handling of icerun
 - Cygwin now works as a client
 - Don't expose Host endianness to network
 - General code cleanup
 
1.1
 - revert "Add load control for preprocessing"
 - better handle clang arugments with spaces
 - remove "crashme" command from scheduler
 - better logging around exception 30
 
1.1rc3
 - Fix broken pipe race condition
 - Better error handling
 - Crash fixes
 - Documentation update
 - Include objcopy in environment if it exists
 - Add CI builds on travis-ci: OSX, ubuntu trusty
 - Fixed several memory errors
 - Extract enviornments with compile priority, not daemon priority
 - Handle spaces in the parameters following -MT
 - Handle -target -arch -c-isystem and -cxx-isystem (clang)
 - Handle NAT situations better
 - Add load control for preprocessing
 - Handle scheduler unable to reach remote machine
 - Make scheduler election algorithm handle multiple netnames

1.1rc2
 - -gsplit-dwarf support for debug fission (https://gcc.gnu.org/wiki/DebugFission)
 - bug fixes since 1.1rc1

1.1rc1
 - require capng
 - use system lzo, drop bundled minilzo
 - allow ICECC_VERSION file to start with a .
 - work with different executable names for docbook-to-man on different distributions
 - support color diagnostics if possible
 - fix several crashes
 - clean up and improve documentation
 - move icecc-create-env to bindir. 
 - Try to use only the best available scheduler
 - make daemon port configurable
 - USE_SCHEDULER now accepts host:port to change ports
 - force local compilation when required in more cases
 - detect some clang out of memory errors.
 - better support for FreeBSD
 - bump protocol version to 34
 - daemon requires chroot
 - some code refactoring for better maintainability
 - find if feature is supported by checking protocol version
 - better logging on error conditions
 - Create many tests cases
 - use path name instead of localhost for unix socket
 - clean up build system
 - use getnameinfo() instead of inet_ntoa()
 - fix some valgrind found issues
 - drop supplementary groups before setgid()
 - make signal handlers more robust
 - work better if user "icecc" does not exist
 - find compilers outside of PATH when building locally

1.0.1
- use su option for logrotate
- require logrotate for suse package

1.0.1rc1
- Remove filenames from md5sum output
- Fix off-by-one error
- add missing cap-ng.m4
- uninstall also SUSE-specific files when uninstalling
- install COPYING, README.md and NEWS as useful user documentation
- use m4/ and ship cap-ng.m4 there
- if -lcap-ng is needed for icecc.a, add it to .pc file (for icemon)
- libicecream-devel may require libcap-ng-devel
- fix icecc-create-env with clang 3.3+
- fix /var/run/icecc handling
- make sure to not hide e.g. SEGV from a tool with exit code 0
- detect bad_alloc as out-of-memory
- add "[Cc]annot allocate memory" to the list of OOM error messages
- Detect gcc "out of memory allocating" as EXIT_OUT_OF_MEMORY. Closes #49
- Avoid symlinks in the absolute paths
- swap arguments for kill() call, since pid is the first argument

1.0.0
- log error message when cleaning up cache fails during startup
- if getuid() != 0, then our u/gid will be getu/gid() the whole time
- chmod/chown envs dir when preparing this
- be more careful when cleaning up envs directory
- cleanup envs dir still with root privileges
- mkdir -p
- Revert "cleanup envs dir still with root privileges"
- cleanup envs dir in %post in specfile
- fix scheduler binary name in suse specfile
- with cap-ng geteuid() is not a sign of being able to do chroot
- avoid debug message without endl
- avoid unused parameter warnings
- install clang/clang++ wrappers symlinks conditionally again
- adjust specfile for optional clang symlinks
- make clang wrappers package also require clang
- fix clang wrappers build
- refer to icecream-users@googlegroups.com ML as the contact
- mention the Linux3_ hack leading to nodes sometimes not being used
- Linux3_ nodes may not compile on other nodes either, actually
- prevent icerun-wrapped commands failing if path contains 'clang'
- remove unnecessary references to KDE to make icecream look KDE-specific
- adjust references to icecream path
- sync the ccache section between README.md and the manpage
- AC_CONFIG_HEADERS instead of obsolete and removed AM_CONFIG_HEADER
- add the README.md to the tar
- mild relicensing, the code taken from ksysguardd is really a minor part by now

0.9.98.2 (1.0rc4)
- suse: Backports from OBS and create symlinks in /opt/icecream/bin on openSUSE <= 12.2.
- fix libexec dir name in opensuse specfile
- icecream doesn't use m4 directory
- explicit configure option for whether to use clang's include rewriting
- use the clang rewrite options in opensuse specfile
- fix builddir != srcdir
- icecream user on suse is 'icecream', not 'icecc'
- do not remove env. basedir itself
- do not chown() with root uid
- do not complain needlessly about missing icecc user
- Fix icecc-create-env for relative paths
- Use docbook2man to generate manpages rather than KDE calls.

0.9.98.1 (1.0rc3)
 - install clang++ clang symlinks unconditionally.
 - move openSUSE's rpm install scripts to suse/Makefile.am.
 - links installation should be pkglibexec instead of libexec
 - rename scheduler to icecc-scheduler to avoid name clash
 - change to an unprivileged user when running the scheduler as root.
 - move scheduler logs to icecc specific dir
 - ignore if meinproc is not avilable
 - version bump minilzo to 2.0.6.

0.9.98 (1.0rc2)
- install icecc links in a more convenient dir
- fix for assembler usage during kvm builds
- fix generation of man pages
- some readme generated from en.opensuse.org content
- update autoconf and automake macros

0.9.97 (1.0rc1)
- support for Clang compiler
  Clang now should work out of the box just like GCC.
  Clang with -frewrite-includes option is recommended (3.2+ or patched).
- support 'icecc <compilername>' properly
- try to avoid compiling on the local machine if it is busy
- do not use old compiler if it was changed while icecream daemon was running
- verify if remote hosts can actually be used for compilation (avoids
  problems with old kernel versions)
- support for custom compiler plugins (GCC/Clang)
- fix gcc 4.6 support
- reduce usage of PATH_MAX for better portability
- fix build-native to add default GNU assembler
- fix SIGSEGV calling build_native without args
- parse @file option
- skip .[h,hpp] header files and check precompiled headers from -include opts
- move log and socket to an icecc especific folder
- rename nobody to user
- add support for libcap-ng
- moving to https://github.com/icecc/icecream
- add clang wrapper symlinks
- allow normal users to actually connect to the daemon's unix socket
- rebuild environment if the compiler changes
- check if the remote node can actually use an environment
- setting to avoid using hosts where the environment cannot be checked
- add [compiler] to the command line template in --help
- support for compiler plugins / multiple native environments
- do not create environments containing both gcc and clang
- check env cache size also when creating new native environment
- keep native envs longer only if there aren't too many
- no "basic" native env really anymore, now with env per each compiler
- include paths in tarball md5sum
- do not use gcc when creating env.tarball for clang
- force env. tarball regeneration if it doesn't exist
- fix for assembler usage during kvm builds

0.9.7 (1232780)
- bug fix for -MD and -MF
- bug fix for gcc 4.6 plugins

0.9.6 (1158638)
- fix installation issues
- add a value type of ticks in /proc - and make it long long
- fix kFreeBSD build
- fix run-failure with glibc 2.11
- allow tgz as extension
- support more local args (bnc#625621)

0.9.5 (1083362)
- fix: close the file descriptor (novell bug 525799)
- log PID even if no prefix is specified
- allow get_msg() to fetch data from the kernel even if timeout is 0.
- clean up event loop of gcc invocation
- Install an "icerun" symlink that will serialize commands through
  icecream's local daemon

0.9.4 (961598):
- fix compilation warnings
- don't leak file descriptor to create-env
- don't use the shell to call simple commands
- assert current_kids is > 0 before decrementing (it's unsigned)
- also check for EAGAIN (needed on OS X)
- add ICECC_LOGFILE to get trace() output into a file
- Fix compilation when using -Wformat -Werror=format-security flags
- make a special exception for - in rest args (bnc#495786)
- Fix way icecream changes permissions of /var/cache/icecream

0.9.3 (926474):
 - Fix FTBFS with GCC 4.4
 - Explicitly set group ownership and permissions on the base cache 
   dir and target dir in case root has a umask of e.g. 0077. 
   Otherwise nobody user won't be ableto untar.
 - make sure that a too strict umask doesn't ruin the game
   fixes https://bugzilla.novell.com/show_bug.cgi?id=446329
 - some create-env fixes for fedora

0.9.2 (879112):
 - On OS X, append the release number to Darwin (Darwin8 for Tiger, Darwin9 for Leopard) 
   as their icecream environments are not compatible
 - Add accessor for the hostname of the scheduler, so that we can show it in a tooltip in 
   icemon in the future.
 - Only localize job if we find -Wa,.*-a[a-z]*= in an argument
 - also add accessor for network name
 - if called as "icecc" (i.e., not through a symlink) and the first argument starts with a slash, 
   use that as the command to run.

0.9.1 (822102):
    - trying to support gentoo x86_64
    - -mcpu=native has to compile locally (gentoo bug 183586#c13)
    - don't compile C files with C++ compile if ICECC_CXX is set

0.9.0 (807014):
    - create a working env on OS X
    - don't hardcode tar path
    - implement load informations on OS X
    - make it work again on non-Linux platforms: Jobs still reported their
      environment platform as i386 etc, even if they came from Darwin or
      BSD (thus the scheduler never finds a matching compile server, or
      wrongly directs a non-Linux client to use a Linux compile server)
    - fixing the init script
    - patch by Tais M. Hansen to ignore directories 
    - compile on OS X 10.5
    - some preparations for rsync support
    - fix valgrind warning
    - add configure check for librsync
    - don't kick daemons that run as user, just don't give them
      any jobs. this helps the people that just don't trust the
      daemon to be able to at least send out jobs
    - remove the now pointless "runasuser" option. it will just 
      not accept any jobs then
    - add log message when the local daemon hangs again
    - accept TERM=dumb as well
    - implement support for scheduling local non-compile jobs.
    
      For example: you can add a symlink named "meinproc4" pointing
      to icecc to your path, and it will automatically schedule
      the job and then invoke meinproc4 on it locally. 
    
      the advantage is that you can use cmake -j50 without having
      to worry that there are going to be 50 meinproc jobs killing
      your machine.
    - do an asynchronous connection to the scheduler:
     * helps when the scheduler is down, as the daemon
       is otherwise locked up then and can't schedule
       local jobs
     * helps when the scheduler is flaky and blocked
       itself on network (like in the suse network).
    - fix connect if scheduler is known
    - send jobs to a monitor non-blocking
    - implement host blocking
    - switch monitor connections to bulk transfer
    - fix double deletion when control connection disconnects
    - add greeting banner that gives a rough statistic (for pretty
      monitoring graphs :)
    - protocol cleanup
    - fix error handling
    - adding more API for better monitor behaviour
    - various protections against malicious requests
    - add a try-restart target for the rpm package
    - always read the scheduler message in complete before trying
      to fetch a message. fixes a daemon hangup (surprising noone noticed
      this before)
    - various code cleanups
    - don't flood the scheduler
    - implement bulk sending
    - reduce overhead by not sending a full path
    - implement much shorter monitor messages
    - reenable cork handling on linux only. helps a lot
    - fix job statistics in monitor
    - check if the compile server sent us a message before die'ing another
      death
    - avoid killing the daemon on protocol errors
    - support "quit" on the normal daemon port as well
    - ext/hash_set is not needed and does not exist anymore
    - DoS protection for the scheduler
    - avoid that daemons hang around in environment installation
      state forever
    - fix daemons being overrun by wrongly assigned jobs
      while they're busy installing
    - add a segfault catcher
    - don't allow tiny environments - they are very likely broken
    - always relogin to the scheduler even if environment
      transfer failed
    - implement proper handling for PCH files for e.g. Qt compilation
    - fix compilation with glibc 2.8

0.8.0 (657903):
        - Find md5 on FreeBSD
        - apply patch to support cygwin a bit better
        - write a pid file. patch by Ismail Doenmez
        - precompiled header support, needed for compiling Qt 4.3
        - add support for --no-remote. patch by Matt Gruenke
        - Make it work on DragonFlyBSD.
        - provide SuSEfirewall2 information
        - Make the result of make dist-gzip usable.
        - update node name each time we login to the scheduler.
        - treat -combine and -fdump* as always local
        - Merged make-it-cool branch:
          * implement job preloading
          * asynchronous install of new environments
          * uses tcp keepalive for network connection tracking
        - make it work on OS X
          * don' hardcode tar path
          * create environments correctly on OS X
	  * report load correctly on mach kernels (Darwin)
          * prepend os to the machine type if it's not linux
            (resulting in e.g. Darwin_PowerMacintosh)

0.7.14 (583722):
        - fix current_kids getting out of sync if send_scheduler
          failes in an unfortunate moment
        - fix reporting the error
        - add more to the internals dump
        - trying to make the scheduler kicks a little bit less frequent
        - if the compiler is supposed to keep temp files, then we
          have to do it locally

0.7.13 (583347):
	- use file -L to follow symlinks in create-env
	- fix an easy valgrind error
	- make handling of the return values consistent
        - if the client is in WAITCOMPILE then it's waiting for some
          other host to compile, not this one. So job == 0 -> crash
        - fix crash if the scheduler goes away while daemon transfers
          environment
	- apparently sometimes gcc can hang forever in some
          cases. By the time the client disconects, we know
          we don't have to wait any longer, because there is
          nobody left caring about the result.
        - update node name each time we login to the scheduler.
          Fixes tons of "linux" hosts appearing in the icecream
          monitor

0.7.12 (r581454):
        - fixing error handling when scheduler restarts
        - do not waitpid before we're sure we read all of g++'s
          output otherwise g++ waits for us to read and we're 
          waiting for g++ to finish -> deadlock

0.7.11 (r581076):
       - fix a crash in the daemon when the scheduler was gone while
         local jobs were waiting for finishing
       - separate stat handling from ping handling
         to avoid excessive stat/ping loops
         (increases internal version number)
       - only reset scheduler ping time if the scheduler ping'ed us
       - even when we can't determine native environment, we
         can still use the daemon for inter-process locking
         instead of falling back to file locking.
       - quicker reap of dead daemons
       - improved load guessing
       - fix stupid logic bug in ping tracking

0.7.10 (r580794):
	- handle errors in installing environments correctly
        - block daemons that have full discs
        - add -pipe to the command line to reduce disk usage
        - fix cancelling of jobs awaiting a remote job (were hanging
          in scheduler forever)
        - if ICECC=no is set, don't try to be clever
        - adding two more flags for local compilation (profile
          feedback related)
        - flush debug files before every fork to avoid dups in
          log output
        - be stricter in what messages are required to keep the
          daemon<->scheduler communication intact (network drops
          again)

0.7.9 (r580498):
	- scheduler will ping the daemon periodically,
	  daemon will disconnect if not pinged from time
          to time (to avoid network drops being unnoticed)
	- removed some debug output
	- make logging more consistent
	- increased internal protocol version (still compatible)
	- try even harder to avoid races in daemon
	- rework how clients are catched
	- some random cleanup
	- remove the "this should be an exception" output to
	  avoid failing configure checks for nothing
	- make sure the assembler is dead before we cleanup object
	  files

0.7.8 (r579795):
        - fd leak fix, which caused a deadlock under 
          certain conditions
        - rework some FreeBSD patches that caused problems
	- fix race between select and SIGCHILD

0.7.7 (r574260):
	- clear all internal maps
	- patches by Frerich to support FreeBSD
	- avoid busy loop in bizarre conditions
	- found another case of endless hanging jobs
	- some process fixes

0.7.6 (r561764):
	- report all daemon error message to the client
	- fix support for biarch machines that have only one
	  environment installed with another environment with
          the same name and different architecture being around
        - work-around a bug in older libstdc++
        - ensure nobody uses -u root

0.7.5 (r561480):
	- don't block while looking for a scheduler over broadcast search.
	- fix logrotate
	- immediately kick broken daemon connections

0.7.4 (r559927):
	- Add -fpreprocessed argument
	- Fix daemons getting stuck after a while with 100% CPU
	- fix for kubuntu where libs are deeply nested 
          such as /lib/tls/i686/cmov/libc.so.6
	- find the compiler even though icecc wasn't in the path
	- fix deletion of old environments
	- a lot more error handling
	- fix assertion failures in daemon upon sigchild delivery
	- use -fPIC also for C files
	- avoid race between local and remote daemon about who has
	  the right exit status
	- rename the package to icecc

0.7.3 (r552930):
	- more work on error handling
	- corrected icecc --help output
	- handle local icecream load correctly
	- reduce the number of load updates from daemon to scheduler
	- early launch the compiler even before the whole preprocessed 
          file has been received
	- handle low-latency networks better
	- builtin colorgcc
	- let the daemon schedule local load even without scheduler (important
	  for multi processor machines)

0.7.2 (r549574): 
	- split out libicecream-devel for the monitor
	- introducing ICECC_PREFERRED_HOST (=mybigfathost) to let the scheduler
          ignore all rules - this is meant to be a debugging aid
	- fix network performance between client and local daemon
	- replaced create-env with icecc --build-native (respecting the user's 
          $PATH by default)

0.7.1 (r548846):	
	- Monitor is an extra package now
	- don't make non-existant cross compilers fatal, but just use
          the other environments in ICECC_VERSION
	- always handle aborted syscalls
	- update minilzo
	- never exit() or return from fork()'ed code paths,
	 
0.7.0 (r547196):
        - WARNING: the protocol is not compatible with earlier versions, old clients
          will refuse to connect, so update the full farm

	- protocol reworked to no longer require a client->scheduler connection
           (the daemon will proxy it all)
        - all local jobs are now scheduled by the local daemon to make sure 
          multiprocessor machines are handling as many jobs as they have jobs
          configured (# processors). They used to be "scheduled" by lock file
	- fixed grave bug that removed all daemon environments when the cache
	  grew over limit
	- new telnet interface command: internals to output daemon states
	- stricter error handling to avoid suprises
	- SIGHUP to daemon and scheduler will reopen the log file to allow logrotate
	- a restart of the daemon and scheduler won't flush the log file, but append
	  to it
	- create-env will create .tar.gz now - the client allows environments to be
	  .tar, .tar.bz2 and .tar.gz