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ccache 3.1.9
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Release date: 2013-01-06
Bug fixes
~~~~~~~~~
- The EAGAIN signal is now handled correctly when emitting cached stderr
output. This fixes a problem triggered by large error outputs from the
compiler.
- Subdirectories in the cache are no longer created in read-only mode.
- Fixed so that ccache's log file descriptor is not made available to the
compiler.
- Improved error reporting when failing to create temporary stdout/stderr
files when executing the compiler.
- Disappearing temporary stdout/stderr files are now handled gracefully.
Other
~~~~~
- Fixed test suite to work on ecryptfs.
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ccache 3.1.8
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Release date: 2012-08-11
New features and improvements
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Made paths to dependency files relative in order to increase cache hits.
- Added work-around to make ccache work with buggy GCC 4.1 when creating a
pre-compiled header.
- Clang plugins are now hashed to catch plugin upgrades.
Bug fixes
~~~~~~~~~
- Fixed crash when the current working directory has been removed.
- Fixed crash when stderr is closed.
- Corrected a corner case when parsing backslash escapes in string
literals.
- Paths are now correctly canonicalized when computing paths relative to
the base directory.
Other
~~~~~
- Made git version macro work when compiling outside of the source
directory.
- Fixed `static_assert` macro definition clash with GCC 4.7.
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ccache 3.1.7
------------
Release date: 2012-01-08
Bug fixes
~~~~~~~~~
- Non-writable `CCACHE_DIR` is now handled gracefully when
`CCACHE_READONLY` is set.
- Made failure to create files (typically due to bad directory permissions)
in the cache directory fatal. Previously, such failures were silently and
erroneously flagged as "compiler produced stdout".
- Both the `-specs=file` and `--specs=file` forms are now recognized.
- Added recognition and hashing of GCC plugins specified with
`-fplugin=file`.
- `CCACHE_COMPILERCHECK` now also determines how to hash explicit specs
files (`-specs=file`).
- Added `CPATH`, `C_INCLUDE_PATH` and similar environment variables to the
hash to avoid false cache hits when such variables have changed.
- Corrected log message when unify mode is enabled.
- Reverted the GCC bug compatibility introduced in ccache 3.1.5 for
`-MT`/`-MQ` options with concatenated arguments. (The bug is fixed in
recent GCC versions.)
Other
~~~~~
- Corrected license header for `mdfour.c`.
- Improved documentation on how to fix bad object files in the cache.
ccache 3.1.6
------------
Release date: 2011-08-21
New features and improvements
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Rewrite argument to `--sysroot` if `CCACHE_BASEDIR` is used.
Bug fixes
~~~~~~~~~
- Don't crash if `getcwd()` fails.
- Fixed alignment of ``called for preprocessing'' counter.
ccache 3.1.5
------------
Release date: 2011-05-29
New features and improvements
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Added a new statistics counter named ``called for preprocessing''.
- The original command line is now logged to the file specified with
`CCACHE_LOGFILE`.
- Improved error logging when system calls fail.
- Added support for rewriting absolute paths in `-F`/`-iframework` GCC
options.
- Improved order of statistics counters in `ccache -s` output.
Bug fixes
~~~~~~~~~
- The `-MF`/`-MT`/`-MQ` options with concatenated argument are now handled
correctly when they are last on the command line.
- ccache is now bug compatible with GCC for the `-MT`/`-MQ` options with
concatenated arguments.
- Fixed a minor memory leak.
- Systems that lack (and don't need to be linked with) libm are now
supported.
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Bump PKGREVISION
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ccache 3.1.4
Bug fixes
ccache 3.1.3
Bug and portability fixes
ccache 3.1.2
Bug fixes
ccache 3.1.1
Bug fixes
ccache 3.1
New features and improvements
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Added support for hashing the output of a custom command (e.g.
`%compiler% --version`) to identify the compiler instead of stat-ing or
hashing the compiler binary. This can improve robustness when the
compiler (as seen by ccache) actually isn't the real compiler but another
compiler wrapper.
- Added support for caching compilations that use precompiled headers. (See
the manual for important instructions regarding this.)
- Locking of the files containing statistics counters is now done using
symlinks instead of POSIX locks. This should make ccache behave a lot
better on file systems where POSIX locks are slow or broken (e.g. NFS on
some systems).
- Manifest files are now updated without the need of taking locks.
- Updates of statistics counters are now always done in one of the
sub-level statistics files. This reduces lock contention, which
especially improves performance on slow NFS mounts.
- Reading and writing of statistics counters has been made
forward-compatible (unknown counters are retained).
- Files are now read without using mmap(). This has two benefits: it's more
robust against file changes during reading and it improves performance on
poor systems where mmap() doesn't use the disk cache.
- Added `.cp` and `.CP` as known C++ suffixes.
- Improved logging.
- Added `-install_name` as an option known to take an argument. (This
improves statistics when using the Darwin linker.)
Bug fixes
ccache 3.0.1
Bug fixes
ccache 3.0
General
~~~~~~~
- ccache is now licensed under the GNU General Public License (GPL) version
3 or later.
Upgrade notes
~~~~~~~~~~~~~
- The way the hashes are calculated has changed, so you won't get cache
hits for compilation results stored by older ccache versions. Because of
this, you might as well clear the old cache directory with `ccache
--clear` if you want, unless you plan to keep using an older ccache
version.
New features and improvements
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- ccache now has a ``direct mode'' where it computes a hash of the source
code (including all included files) and compiler options without
running the preprocessor. By not running the preprocessor, CPU usage is
reduced; the speed is somewhere between 1 and 5 times that of ccache
running in traditional mode, depending on the circumstances. The speedup
will be higher when I/O is fast (e.g., when files are in the disk cache).
The direct mode can be disabled by setting +CCACHE_NODIRECT+.
- Support has been added for rewriting absolute paths to relative paths
when hashing, in order to increase cache hit rate when building the same
source code in different directories even when compiling with `-g` and
when using absolute include directory paths. This is done by setting the
`CCACHE_BASEDIR` environment variable to an absolute path that specifies
which paths to rewrite.
- Object files are now optionally stored compressed in the cache. The
runtime cost is negligible, and more files will fit in the ccache
directory and in the disk cache. Set `CCACHE_COMPRESS` to enable object
file compression. Note that you can't use compression in combination with
the hard link feature.
- A `CCACHE_COMPILERCHECK` option has been added. This option tells ccache
what compiler-identifying information to hash to ensure that results
retrieved from the cache are accurate. Possible values are: none (don't
hash anything), mtime (hash the compiler's mtime and size) and content
(hash the content of the compiler binary). The default is mtime.
- It is now possible to specify extra files whose contents should be
included in the hash sum by setting the `CCACHE_EXTRAFILES` option.
- Added support for Objective-C and Objective-C\+\+. The statistics counter
``not a C/C++ file'' has been renamed to ``unsupported source language''.
- Added support for the `-x` compiler option.
- Added support for long command-line options.
- A `CACHEDIR.TAG` file is now created in the cache directory. See
<http://www.brynosaurus.com/cachedir/>.
- Messages printed to the debug log (specified by `CCACHE_LOGFILE`) have
been improved.
- You can relax some checks that ccache does in direct mode by setting
`CCACHE_SLOPPINESS`. See the manual for more information.
- `CCACHE_TEMPDIR` no longer needs to be on the same filesystem as
`CCACHE_DIR`.
- The default value of `CCACHE_TEMPDIR` has been changed to
`$CCACHE_DIR/tmp` to avoid cluttering the top directory.
- Temporary files that later will be moved into the cache are now created
in the cache directory they will end up in. This makes ccache more
friendly to Linux's directory layout.
- Improved the test suite and added tests for most of the new
functionality. It's now also possible to specify a subset of tests to
run.
- Standard error output from the compiler is now only stored in the cache
if it's non-empty.
- If the compiler produces no object file or an empty object file, but
gives a zero exit status (could be due to a file system problem, a buggy
program specified by `CCACHE_PREFIX`, etc.), ccache copes with it
properly.
- Added `installcheck` and `distcheck` make targets.
- Clarified cache size limit options' and cleanup semantics.
- Improved display of cache max size values.
- The following options are no longer hashed in the preprocessor mode:
`-imacros`, `-imultilib`, `-iprefix`, `-iquote`, `-isysroot`,
`-iwithprefix`, `-iwithprefixbefore`, `-nostdinc`, `-nostdinc++` and
`-U`.
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Changes:
* Added CCACHE_READONLY option.
* Added CCACHE_TEMPDIR option.
* Fixed handling of hard-linked compiler on AIX.
* Added O_BINARY support, to try and support win32 compiles.
* Show cache directory in stats output.
* Fixed handling of HOME environment variable.
NOTE: This release changes the hash input slighly, so you will probably
find that you will not get any hits against your existing cache when
you upgrade.
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using ccache. Noted by Ossi Herrala in PR pkg/24728.
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a new environment variable CCACHE_HASHCC whose value may be used to
override the compiler-specific addition to the hash value used to
distinguish between two compiles. This is useful where the compiler is
a shell script generated on-the-fly that executes the real compiler.
This allows ccache to function correctly within the pkgsrc
infrastructure.
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Added CCACHE_UMASK option
Added support for compilation of .i files
Fixed bug with DEPENDENCIES_OUTPUT flag
Added support for more -Mx options
Added separate stderr channel for distcc
Improved test suite
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However changes since 2.1.1 include:
# added a test suite
# better integration with distcc
# added CCACHE_PREFIX option
# disabled hard links by default
# recognise some more gcc options (eg. profiling)
# added --ccache-skip option
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a file is on nfs filesystem.
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- fixed warning output line numbers
- added some more C++ extensions
- fixed a minor md4 hashing bug
- added support for some of the -M compiler options
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http://ccache.samba.org/
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