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<div id="header">
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<h1>ccache news</h1>
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<span id="revnumber">version 3.0.1</span>
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<span id="revnumber">version 3.1.3</span>
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<div id="toctitle">Table of Contents</div>
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<noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
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<div id="content">
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<h2 id="_ccache_3_1_3">ccache 3.1.3</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Release date: 2010-11-28</p></div>
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<h3 id="_bug_fixes">Bug fixes</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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The -MFarg, -MTarg and -MQarg compiler options (i.e, without space
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between option and argument) are now handled correctly.
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<h3 id="_other">Other</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Portability fixes for HP-UX 11.00 and other esoteric systems.
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<h2 id="_ccache_3_1_2">ccache 3.1.2</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Release date: 2010-11-21</p></div>
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<h3 id="_bug_fixes_2">Bug fixes</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Bail out on too hard compiler options <tt>-fdump-*</tt>.
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NULL return values from malloc/calloc of zero bytes are now handled
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Fixed issue when parsing precompiler output on AIX.
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<h3 id="_other_2">Other</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Improved documentation on which information is included in the hash sum.
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Made the “too new header file” test case work on file systems with
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unsynchronized clocks.
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The test suite now also works on systems that lack a /dev/zero.
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<h2 id="_ccache_3_1_1">ccache 3.1.1</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Release date: 2010-11-07</p></div>
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<h3 id="_bug_fixes_3">Bug fixes</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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ccache now falls back to preprocessor mode when a non-regular include
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file (device, socket, etc) has been detected so that potential hanging
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due to blocking reads is avoided.
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CRC errors are now detected when decompressing compressed files in the
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Fixed potential object file corruption race on NFS.
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Minor documentation corrections.
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Fixed configure detection of ar.
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ccache development version (set by dev.mk) now works with gits whose
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<tt>describe</tt> command doesn’t understand <tt>--dirty</tt>.
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<h3 id="_other_3">Other</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Minor debug log message improvements.
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<h2 id="_ccache_3_1">ccache 3.1</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Release date: 2010-09-16</p></div>
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<h3 id="_new_features_and_improvements">New features and improvements</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Added support for hashing the output of a custom command (e.g.
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<tt>%compiler% --version</tt>) to identify the compiler instead of stat-ing or
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hashing the compiler binary. This can improve robustness when the
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compiler (as seen by ccache) actually isn’t the real compiler but another
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Added support for caching compilations that use precompiled headers. (See
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the manual for important instructions regarding this.)
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Locking of the files containing statistics counters is now done using
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symlinks instead of POSIX locks. This should make ccache behave a lot
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better on file systems where POSIX locks are slow or broken (e.g. NFS on
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Manifest files are now updated without the need of taking locks.
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Updates of statistics counters are now always done in one of the
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sub-level statistics files. This reduces lock contention, which
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especially improves performance on slow NFS mounts.
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Reading and writing of statistics counters has been made
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forward-compatible (unknown counters are retained).
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Files are now read without using mmap(). This has two benefits: it’s more
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robust against file changes during reading and it improves performance on
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poor systems where mmap() doesn’t use the disk cache.
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Added <tt>.cp</tt> and <tt>.CP</tt> as known C++ suffixes.
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Added <tt>-install_name</tt> as an option known to take an argument. (This
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improves statistics when using the Darwin linker.)
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<h3 id="_bug_fixes_4">Bug fixes</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Non-fatal error messages are now never printed to stderr but logged
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Fixed a bug affecting failing commands when <tt>--ccache-skip</tt> is used.
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Made <tt>--ccache-skip</tt> work for all options.
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EINTR is now handled correctly.
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<h3 id="_other_4">Other</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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Work on porting ccache to win32 (native), mostly done by Ramiro Polla.
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The port is not yet finished, but will hopefully be complete in some
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Added a <tt>--nostats</tt> flag to the performance benchmark program.
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Made the performance benchmark program more accurate when measuring cache
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Added a new test framework for unit tests written in C.
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Got rid of <tt>configure-dev</tt>; dev mode is now given by <tt>dev.mk.in</tt>
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Improved documentation on how to combine ccache with other compiler
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wrappers (like <tt>distcc</tt>).
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New <tt>LICENSE.txt</tt> file with licensing and copyright details about bundled
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New <tt>AUTHORS.txt</tt> file with a list of ccache contributors.
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New <tt>HACKING.txt</tt> file with some notes about ccache code conventions.
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<h2 id="_ccache_3_0_1">ccache 3.0.1</h2>
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<div class="sectionbody">
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<div class="paragraph"><p>Release date: 2010-07-15</p></div>
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<h3 id="_bug_fixes">Bug fixes</h3><div style="clear:left"></div>
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<h3 id="_bug_fixes_5">Bug fixes</h3><div style="clear:left"></div>
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<div class="ulist"><ul>
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