1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
\r
2 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
\r
3 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
\r
5 <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
\r
6 <meta name="generator" content="AsciiDoc 8.6.9" />
\r
7 <title>ccache news</title>
\r
8 <style type="text/css">
\r
9 /* Shared CSS for AsciiDoc xhtml11 and html5 backends */
\r
13 font-family: Georgia,serif;
\r
17 h1, h2, h3, h4, h5, h6,
\r
18 div.title, caption.title,
\r
19 thead, p.table.header,
\r
21 #author, #revnumber, #revdate, #revremark,
\r
23 font-family: Arial,Helvetica,sans-serif;
\r
27 margin: 1em 5% 1em 5%;
\r
32 text-decoration: underline;
\r
48 h1, h2, h3, h4, h5, h6 {
\r
51 margin-bottom: 0.5em;
\r
56 border-bottom: 2px solid silver;
\r
76 border: 1px solid silver;
\r
81 margin-bottom: 0.5em;
\r
87 ul > li { color: #aaa; }
\r
88 ul > li > * { color: black; }
\r
90 .monospaced, code, pre {
\r
91 font-family: "Courier New", Courier, monospace;
\r
98 white-space: pre-wrap;
\r
108 #revnumber, #revdate, #revremark {
\r
113 border-top: 2px solid silver;
\r
114 padding-top: 0.5em;
\r
119 padding-bottom: 0.5em;
\r
123 padding-bottom: 0.5em;
\r
128 margin-bottom: 1.5em;
\r
130 div.imageblock, div.exampleblock, div.verseblock,
\r
131 div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
\r
132 div.admonitionblock {
\r
134 margin-bottom: 1.5em;
\r
136 div.admonitionblock {
\r
138 margin-bottom: 2.0em;
\r
143 div.content { /* Block element content. */
\r
147 /* Block element titles. */
\r
148 div.title, caption.title {
\r
153 margin-bottom: 0.5em;
\r
159 td div.title:first-child {
\r
162 div.content div.title:first-child {
\r
165 div.content + div.title {
\r
169 div.sidebarblock > div.content {
\r
170 background: #ffffee;
\r
171 border: 1px solid #dddddd;
\r
172 border-left: 4px solid #f0f0f0;
\r
176 div.listingblock > div.content {
\r
177 border: 1px solid #dddddd;
\r
178 border-left: 5px solid #f0f0f0;
\r
179 background: #f8f8f8;
\r
183 div.quoteblock, div.verseblock {
\r
184 padding-left: 1.0em;
\r
185 margin-left: 1.0em;
\r
187 border-left: 5px solid #f0f0f0;
\r
191 div.quoteblock > div.attribution {
\r
192 padding-top: 0.5em;
\r
196 div.verseblock > pre.content {
\r
197 font-family: inherit;
\r
198 font-size: inherit;
\r
200 div.verseblock > div.attribution {
\r
201 padding-top: 0.75em;
\r
204 /* DEPRECATED: Pre version 8.2.7 verse style literal block. */
\r
205 div.verseblock + div.attribution {
\r
209 div.admonitionblock .icon {
\r
210 vertical-align: top;
\r
213 text-decoration: underline;
\r
215 padding-right: 0.5em;
\r
217 div.admonitionblock td.content {
\r
218 padding-left: 0.5em;
\r
219 border-left: 3px solid #dddddd;
\r
222 div.exampleblock > div.content {
\r
223 border-left: 3px solid #dddddd;
\r
224 padding-left: 0.5em;
\r
227 div.imageblock div.content { padding-left: 0; }
\r
228 span.image img { border-style: none; vertical-align: text-bottom; }
\r
229 a.image:visited { color: white; }
\r
233 margin-bottom: 0.8em;
\r
238 font-style: normal;
\r
241 dd > *:first-child {
\r
246 list-style-position: outside;
\r
249 list-style-type: decimal;
\r
252 list-style-type: lower-alpha;
\r
255 list-style-type: upper-alpha;
\r
258 list-style-type: lower-roman;
\r
261 list-style-type: upper-roman;
\r
264 div.compact ul, div.compact ol,
\r
265 div.compact p, div.compact p,
\r
266 div.compact div, div.compact div {
\r
268 margin-bottom: 0.1em;
\r
280 margin-bottom: 0.8em;
\r
283 padding-bottom: 15px;
\r
285 dt.hdlist1.strong, td.hdlist1.strong {
\r
289 vertical-align: top;
\r
290 font-style: normal;
\r
291 padding-right: 0.8em;
\r
295 vertical-align: top;
\r
297 div.hdlist.compact tr {
\r
303 background: yellow;
\r
306 .footnote, .footnoteref {
\r
310 span.footnote, span.footnoteref {
\r
311 vertical-align: super;
\r
315 margin: 20px 0 20px 0;
\r
316 padding: 7px 0 0 0;
\r
319 #footnotes div.footnote {
\r
325 border-top: 1px solid silver;
\r
334 padding-right: 0.5em;
\r
335 padding-bottom: 0.3em;
\r
336 vertical-align: top;
\r
338 div.colist td img {
\r
343 #footer-badges { display: none; }
\r
347 margin-bottom: 2.5em;
\r
355 margin-bottom: 0.1em;
\r
358 div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
\r
375 span.aqua { color: aqua; }
\r
376 span.black { color: black; }
\r
377 span.blue { color: blue; }
\r
378 span.fuchsia { color: fuchsia; }
\r
379 span.gray { color: gray; }
\r
380 span.green { color: green; }
\r
381 span.lime { color: lime; }
\r
382 span.maroon { color: maroon; }
\r
383 span.navy { color: navy; }
\r
384 span.olive { color: olive; }
\r
385 span.purple { color: purple; }
\r
386 span.red { color: red; }
\r
387 span.silver { color: silver; }
\r
388 span.teal { color: teal; }
\r
389 span.white { color: white; }
\r
390 span.yellow { color: yellow; }
\r
392 span.aqua-background { background: aqua; }
\r
393 span.black-background { background: black; }
\r
394 span.blue-background { background: blue; }
\r
395 span.fuchsia-background { background: fuchsia; }
\r
396 span.gray-background { background: gray; }
\r
397 span.green-background { background: green; }
\r
398 span.lime-background { background: lime; }
\r
399 span.maroon-background { background: maroon; }
\r
400 span.navy-background { background: navy; }
\r
401 span.olive-background { background: olive; }
\r
402 span.purple-background { background: purple; }
\r
403 span.red-background { background: red; }
\r
404 span.silver-background { background: silver; }
\r
405 span.teal-background { background: teal; }
\r
406 span.white-background { background: white; }
\r
407 span.yellow-background { background: yellow; }
\r
409 span.big { font-size: 2em; }
\r
410 span.small { font-size: 0.6em; }
\r
412 span.underline { text-decoration: underline; }
\r
413 span.overline { text-decoration: overline; }
\r
414 span.line-through { text-decoration: line-through; }
\r
416 div.unbreakable { page-break-inside: avoid; }
\r
426 margin-bottom: 1.5em;
\r
428 div.tableblock > table {
\r
429 border: 3px solid #527bbd;
\r
431 thead, p.table.header {
\r
438 /* Because the table frame attribute is overriden by CSS in most browsers. */
\r
439 div.tableblock > table[frame="void"] {
\r
440 border-style: none;
\r
442 div.tableblock > table[frame="hsides"] {
\r
443 border-left-style: none;
\r
444 border-right-style: none;
\r
446 div.tableblock > table[frame="vsides"] {
\r
447 border-top-style: none;
\r
448 border-bottom-style: none;
\r
459 margin-bottom: 1.5em;
\r
461 thead, p.tableblock.header {
\r
470 border-spacing: 0px;
\r
471 border-style: solid;
\r
472 border-color: #527bbd;
\r
473 border-collapse: collapse;
\r
475 th.tableblock, td.tableblock {
\r
478 border-style: solid;
\r
479 border-color: #527bbd;
\r
482 table.tableblock.frame-topbot {
\r
483 border-left-style: hidden;
\r
484 border-right-style: hidden;
\r
486 table.tableblock.frame-sides {
\r
487 border-top-style: hidden;
\r
488 border-bottom-style: hidden;
\r
490 table.tableblock.frame-none {
\r
491 border-style: hidden;
\r
494 th.tableblock.halign-left, td.tableblock.halign-left {
\r
497 th.tableblock.halign-center, td.tableblock.halign-center {
\r
498 text-align: center;
\r
500 th.tableblock.halign-right, td.tableblock.halign-right {
\r
504 th.tableblock.valign-top, td.tableblock.valign-top {
\r
505 vertical-align: top;
\r
507 th.tableblock.valign-middle, td.tableblock.valign-middle {
\r
508 vertical-align: middle;
\r
510 th.tableblock.valign-bottom, td.tableblock.valign-bottom {
\r
511 vertical-align: bottom;
\r
521 padding-top: 0.5em;
\r
522 padding-bottom: 0.5em;
\r
523 border-top: 2px solid silver;
\r
524 border-bottom: 2px solid silver;
\r
527 border-style: none;
\r
529 body.manpage div.sectionbody {
\r
534 body.manpage div#toc { display: none; }
\r
539 <script type="text/javascript">
\r
541 var asciidoc = { // Namespace.
\r
543 /////////////////////////////////////////////////////////////////////
\r
544 // Table Of Contents generator
\r
545 /////////////////////////////////////////////////////////////////////
\r
547 /* Author: Mihai Bazon, September 2002
\r
548 * http://students.infoiasi.ro/~mishoo
\r
550 * Table Of Content generator
\r
553 * Feel free to use this script under the terms of the GNU General Public
\r
554 * License, as long as you do not remove or alter this notice.
\r
557 /* modified by Troy D. Hanson, September 2006. License: GPL */
\r
558 /* modified by Stuart Rackham, 2006, 2009. License: GPL */
\r
560 // toclevels = 1..4.
\r
561 toc: function (toclevels) {
\r
563 function getText(el) {
\r
565 for (var i = el.firstChild; i != null; i = i.nextSibling) {
\r
566 if (i.nodeType == 3 /* Node.TEXT_NODE */) // IE doesn't speak constants.
\r
568 else if (i.firstChild != null)
\r
569 text += getText(i);
\r
574 function TocEntry(el, text, toclevel) {
\r
577 this.toclevel = toclevel;
\r
580 function tocEntries(el, toclevels) {
\r
581 var result = new Array;
\r
582 var re = new RegExp('[hH]([1-'+(toclevels+1)+'])');
\r
583 // Function that scans the DOM tree for header elements (the DOM2
\r
584 // nodeIterator API would be a better technique but not supported by all
\r
586 var iterate = function (el) {
\r
587 for (var i = el.firstChild; i != null; i = i.nextSibling) {
\r
588 if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {
\r
589 var mo = re.exec(i.tagName);
\r
590 if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {
\r
591 result[result.length] = new TocEntry(i, getText(i), mo[1]-1);
\r
601 var toc = document.getElementById("toc");
\r
606 // Delete existing TOC entries in case we're reloading the TOC.
\r
607 var tocEntriesToRemove = [];
\r
609 for (i = 0; i < toc.childNodes.length; i++) {
\r
610 var entry = toc.childNodes[i];
\r
611 if (entry.nodeName.toLowerCase() == 'div'
\r
612 && entry.getAttribute("class")
\r
613 && entry.getAttribute("class").match(/^toclevel/))
\r
614 tocEntriesToRemove.push(entry);
\r
616 for (i = 0; i < tocEntriesToRemove.length; i++) {
\r
617 toc.removeChild(tocEntriesToRemove[i]);
\r
620 // Rebuild TOC entries.
\r
621 var entries = tocEntries(document.getElementById("content"), toclevels);
\r
622 for (var i = 0; i < entries.length; ++i) {
\r
623 var entry = entries[i];
\r
624 if (entry.element.id == "")
\r
625 entry.element.id = "_toc_" + i;
\r
626 var a = document.createElement("a");
\r
627 a.href = "#" + entry.element.id;
\r
628 a.appendChild(document.createTextNode(entry.text));
\r
629 var div = document.createElement("div");
\r
630 div.appendChild(a);
\r
631 div.className = "toclevel" + entry.toclevel;
\r
632 toc.appendChild(div);
\r
634 if (entries.length == 0)
\r
635 toc.parentNode.removeChild(toc);
\r
639 /////////////////////////////////////////////////////////////////////
\r
640 // Footnotes generator
\r
641 /////////////////////////////////////////////////////////////////////
\r
643 /* Based on footnote generation code from:
\r
644 * http://www.brandspankingnew.net/archive/2005/07/format_footnote.html
\r
647 footnotes: function () {
\r
648 // Delete existing footnote entries in case we're reloading the footnodes.
\r
650 var noteholder = document.getElementById("footnotes");
\r
654 var entriesToRemove = [];
\r
655 for (i = 0; i < noteholder.childNodes.length; i++) {
\r
656 var entry = noteholder.childNodes[i];
\r
657 if (entry.nodeName.toLowerCase() == 'div' && entry.getAttribute("class") == "footnote")
\r
658 entriesToRemove.push(entry);
\r
660 for (i = 0; i < entriesToRemove.length; i++) {
\r
661 noteholder.removeChild(entriesToRemove[i]);
\r
664 // Rebuild footnote entries.
\r
665 var cont = document.getElementById("content");
\r
666 var spans = cont.getElementsByTagName("span");
\r
669 for (i=0; i<spans.length; i++) {
\r
670 if (spans[i].className == "footnote") {
\r
672 var note = spans[i].getAttribute("data-note");
\r
674 // Use [\s\S] in place of . so multi-line matches work.
\r
675 // Because JavaScript has no s (dotall) regex flag.
\r
676 note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1];
\r
677 spans[i].innerHTML =
\r
678 "[<a id='_footnoteref_" + n + "' href='#_footnote_" + n +
\r
679 "' title='View footnote' class='footnote'>" + n + "</a>]";
\r
680 spans[i].setAttribute("data-note", note);
\r
682 noteholder.innerHTML +=
\r
683 "<div class='footnote' id='_footnote_" + n + "'>" +
\r
684 "<a href='#_footnoteref_" + n + "' title='Return to text'>" +
\r
685 n + "</a>. " + note + "</div>";
\r
686 var id =spans[i].getAttribute("id");
\r
687 if (id != null) refs["#"+id] = n;
\r
691 noteholder.parentNode.removeChild(noteholder);
\r
693 // Process footnoterefs.
\r
694 for (i=0; i<spans.length; i++) {
\r
695 if (spans[i].className == "footnoteref") {
\r
696 var href = spans[i].getElementsByTagName("a")[0].getAttribute("href");
\r
697 href = href.match(/#.*/)[0]; // Because IE return full URL.
\r
699 spans[i].innerHTML =
\r
700 "[<a href='#_footnote_" + n +
\r
701 "' title='View footnote' class='footnote'>" + n + "</a>]";
\r
707 install: function(toclevels) {
\r
710 function reinstall() {
\r
711 asciidoc.footnotes();
\r
713 asciidoc.toc(toclevels);
\r
717 function reinstallAndRemoveTimer() {
\r
718 clearInterval(timerId);
\r
722 timerId = setInterval(reinstall, 500);
\r
723 if (document.addEventListener)
\r
724 document.addEventListener("DOMContentLoaded", reinstallAndRemoveTimer, false);
\r
726 window.onload = reinstallAndRemoveTimer;
\r
730 asciidoc.install(2);
\r
734 <body class="article">
\r
736 <h1>ccache news</h1>
\r
737 <span id="revnumber">version 3.2.7</span>
\r
739 <div id="toctitle">Table of Contents</div>
740 <noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
744 <div class="sect1">
\r
745 <h2 id="_ccache_3_2_7">ccache 3.2.7</h2>
\r
746 <div class="sectionbody">
\r
747 <div class="paragraph"><p>Release date: 2016-07-20</p></div>
\r
748 <div class="sect2">
\r
749 <h3 id="_bug_fixes">Bug fixes</h3>
\r
750 <div class="ulist"><ul>
\r
753 Fixed a bug which could lead to false cache hits for compiler command lines
\r
754 with a missing argument to an option that takes an argument.
\r
759 ccache now knows how to work around a glitch in the output of GCC 6’s
\r
767 <div class="sect1">
\r
768 <h2 id="_ccache_3_2_6">ccache 3.2.6</h2>
\r
769 <div class="sectionbody">
\r
770 <div class="paragraph"><p>Release date: 2016-07-12</p></div>
\r
771 <div class="sect2">
\r
772 <h3 id="_bug_fixes_2">Bug fixes</h3>
\r
773 <div class="ulist"><ul>
\r
776 Fixed build problem on QNX, which lacks “SA_RESTART”.
\r
781 Bail out on compiler option <code>-fstack-usage</code> since it creates a <code>.su</code> file
\r
782 which ccache currently doesn’t handle.
\r
787 Fixed a bug where (due to ccache rewriting paths) the compiler could choose
\r
788 incorrect include files if <code>CCACHE_BASEDIR</code> is used and the source file path
\r
789 is absolute and is a symlink.
\r
796 <div class="sect1">
\r
797 <h2 id="_ccache_3_2_5">ccache 3.2.5</h2>
\r
798 <div class="sectionbody">
\r
799 <div class="paragraph"><p>Release date: 2016-04-17</p></div>
\r
800 <div class="sect2">
\r
801 <h3 id="_new_features_and_improvements">New features and improvements</h3>
\r
802 <div class="ulist"><ul>
\r
805 Only pass clang-specific <code>-stdlib=</code> to the preprocessor.
\r
810 Improved handling of stale NFS handles.
\r
815 Made it harder to misinterpret documentation of boolean environment settings'
\r
821 <div class="sect2">
\r
822 <h3 id="_bug_fixes_3">Bug fixes</h3>
\r
823 <div class="ulist"><ul>
\r
826 Include m4 files used by configure.ac in the source dist archives.
\r
831 Corrected "Performance" section in the manual regarding <code>__DATE_</code>, <code>__TIME__</code>
\r
832 and <code>__FILE__</code> macros.
\r
837 Fixed build on Solaris 10+ and AIX 7.
\r
842 Fixed failure to create directories on QNX.
\r
847 Don’t (try to) update manifest file in “read-only” and “read-only direct”
\r
853 Fixed a bug in caching of <code>stat</code> system calls in “file_stat_matches
\r
854 sloppiness mode”.
\r
859 Fixed bug in hashing of clang plugins, leading to unnecessary cache misses.
\r
864 Fixed --print-config to show “pch_defines sloppiness”.
\r
869 The man page is now built when running “make install” from Git repository
\r
877 <div class="sect1">
\r
878 <h2 id="_ccache_3_2_4">ccache 3.2.4</h2>
\r
879 <div class="sectionbody">
\r
880 <div class="paragraph"><p>Release date: 2015-10-08</p></div>
\r
881 <div class="sect2">
\r
882 <h3 id="_bug_fixes_4">Bug fixes</h3>
\r
883 <div class="ulist"><ul>
\r
886 Fixed build error related to zlib on systems with older make versions
\r
887 (regression in ccache 3.2.3).
\r
892 Made conversion-to-bool explicit to avoid build warnings (and potential
\r
893 runtime errors) on legacy systems.
\r
898 Improved signal handling: Kill compiler on SIGTERM; wait for compiler to exit
\r
899 before exiting; die appropriately.
\r
904 Minor fixes related to Windows support.
\r
909 The correct compression level is now used if compression is requested.
\r
914 Fixed a bug where cache cleanup could be run too early for caches larger than
\r
915 64 GiB on 32-bit systems.
\r
922 <div class="sect1">
\r
923 <h2 id="_ccache_3_2_3">ccache 3.2.3</h2>
\r
924 <div class="sectionbody">
\r
925 <div class="paragraph"><p>Release date: 2015-08-16</p></div>
\r
926 <div class="sect2">
\r
927 <h3 id="_new_features_and_improvements_2">New features and improvements</h3>
\r
928 <div class="ulist"><ul>
\r
931 Added support for compiler option <code>-gsplit-dwarf</code>.
\r
936 <div class="sect2">
\r
937 <h3 id="_bug_fixes_5">Bug fixes</h3>
\r
938 <div class="ulist"><ul>
\r
941 Support external zlib in nonstandard directory.
\r
946 Avoid calling <code>exit()</code> inside an exit handler.
\r
951 Let exit handler terminate properly.
\r
956 Bail out on compiler option <code>--save-temps</code> in addition to <code>-save-temps</code>.
\r
961 Only log "Disabling direct mode" once when failing to read potential include
\r
969 <div class="sect1">
\r
970 <h2 id="_ccache_3_2_2">ccache 3.2.2</h2>
\r
971 <div class="sectionbody">
\r
972 <div class="paragraph"><p>Release date: 2015-05-10</p></div>
\r
973 <div class="sect2">
\r
974 <h3 id="_new_features_and_improvements_3">New features and improvements</h3>
\r
975 <div class="ulist"><ul>
\r
978 Added support for <code>CCACHE_COMPILERCHECK=string:<value></code>. This is a faster
\r
979 alternative to <code>CCACHE_COMPILERCHECK=<command></code> if the command’s output can
\r
980 be precalculated by the build system.
\r
985 Add support for caching code coverage results (compiling for gcov).
\r
990 <div class="sect2">
\r
991 <h3 id="_bug_fixes_6">Bug fixes</h3>
\r
992 <div class="ulist"><ul>
\r
995 Made hash of cached result created with and without <code>CCACHE_CPP2</code> different.
\r
996 This makes it possible to rebuild with <code>CCACHE_CPP2</code> set without having to
\r
997 clear the cache to get new results.
\r
1002 Don’t try to reset a non-existing stats file. This avoids “No such file or
\r
1003 directory” messages in the ccache log when the cache directory doesn’t
\r
1009 Fixed a bug where ccache deleted clang diagnostics after compiler failures.
\r
1014 Avoid performing an unnecessary copy of the object file on a cache miss.
\r
1019 Bail out on too hard compiler option <code>-fmodules</code>.
\r
1024 Bail out on too hard compiler option <code>-fplugin=libcc1plugin</code> (interaction
\r
1030 Fixed build error when compiling ccache with recent clang versions.
\r
1035 Removed signal-unsafe code from signal handler.
\r
1040 Corrected logic for when to output cached stderr.
\r
1045 Wipe the whole cached result on failure retrieving a cached file.
\r
1050 Fixed build error when compiling ccache with recent clang versions.
\r
1057 <div class="sect1">
\r
1058 <h2 id="_ccache_3_2_1">ccache 3.2.1</h2>
\r
1059 <div class="sectionbody">
\r
1060 <div class="paragraph"><p>Release date: 2014-12-10</p></div>
\r
1061 <div class="sect2">
\r
1062 <h3 id="_bug_fixes_7">Bug fixes</h3>
\r
1063 <div class="ulist"><ul>
\r
1066 Fixed regression in temporary file handling, which lead to incorrect
\r
1067 permissions for stats, manifest and ccache.conf files in the cache.
\r
1072 <code>CACHEDIR.TAG</code> files are now created in the [0-9a-f] subdirectories so that
\r
1073 ccache.conf is not lost in backups.
\r
1078 Made the default cache size suffix <code>G</code>, as previously documented.
\r
1083 <code>-fdiagnostics-color=auto</code> is now passed to the compiler even if stderr is
\r
1084 redirected. This fixes a problem when, for instance, a configure test probes
\r
1085 if the compiler (wrapped via ccache) supports <code>-fdiagnostics-color=auto</code>.
\r
1090 Added missing documentation for <code>max_files</code> and <code>max_size</code> configuration
\r
1098 <div class="sect1">
\r
1099 <h2 id="_ccache_3_2">ccache 3.2</h2>
\r
1100 <div class="sectionbody">
\r
1101 <div class="paragraph"><p>Release date: 2014-11-17</p></div>
\r
1102 <div class="sect2">
\r
1103 <h3 id="_new_features_and_improvements_4">New features and improvements</h3>
\r
1104 <div class="ulist"><ul>
\r
1107 Added support for configuring ccache via one or several configuration files
\r
1108 instead of via environment variables. Environment variables still have
\r
1109 priority but are no longer the recommended way of customizing ccache
\r
1110 behavior. See the manual for more information.
\r
1115 Added support for compiler error/warning messages with color.
\r
1120 Made creation of temporary directories and cache directories smarter to avoid
\r
1121 unnecessary <code>stat</code> calls.
\r
1126 Improved efficiency of the algorithm that scans for <code>__DATE_</code> and <code>__TIME__</code>
\r
1127 tokens in the hashed source code.
\r
1132 Added support for several binaries (separated by space) in <code>CCACHE_PREFIX</code>.
\r
1137 The <code>-c</code> option is no longer passed to the preprocessor. This fixes problems
\r
1138 with clang and Solaris’s C++ compiler.
\r
1143 ccache no longer passes preprocessor options like <code>-D</code> and <code>-I</code> to the
\r
1144 compiler when compiling preprocessed output. This fixes warnings emitted by
\r
1150 Compiler options <code>-fprofile-generate</code>, <code>-fprofile-arcs</code>, <code>-fprofile-use</code> and
\r
1151 <code>-fbranch-probabilities</code> are now handled without bailing.
\r
1156 Added support for clang’s <code>--serialize-diagnostic</code> option, storing the
\r
1157 diagnostic file (<code>.dia</code>) in the cache.
\r
1162 Added support for precompiled headers when using clang.
\r
1167 Added support for clang <code>.pth</code> (pretokenized header) files.
\r
1172 Changed the <code>-x</code> language option to use the new objective C standard for GCC
\r
1178 On a cache miss, ccache now instructs the compiler to create the object file
\r
1179 at the real destination and then copies the file into the cache instead of
\r
1180 the other way around. This is needed to support compiler options like
\r
1181 <code>-fprofile-arcs</code> and <code>--serialize-diagnostics</code>.
\r
1186 ccache now checks that included files' ctimes aren’t too new. This check can
\r
1187 be turned off by adding <code>include_file_ctime</code> to the “ccache sloppiness”
\r
1193 Added possibility to get cache hits based on filename, size, mtime and ctime
\r
1194 only. On other words, source code files are not even read, only stat-ed. This
\r
1195 operation mode is opt-in by adding <code>file_stat_matches</code> to the “ccache
\r
1196 sloppiness” setting.
\r
1201 The filename part of options like <code>-Wp,-MDfilename</code> is no longer included in
\r
1202 the hash since the filename doesn’t have any bearing on the result.
\r
1207 Added a “read-only direct” configuration setting, which is like the
\r
1208 ordinary read-only setting except that ccache will only try to retrieve
\r
1209 results from the cache using the direct mode, not the preprocessor mode.
\r
1214 The display and interpretation of cache size has been changed to use SI
\r
1220 Default cache size is now 5 GB (was previously 1 GiB).
\r
1225 Added configuration option to set the compression level of compressed object
\r
1226 files in the cache.
\r
1231 Added support for <code>@file</code> and <code>-@file</code> arguments (reading options from a
\r
1237 <code>-Wl,</code> options are no longer included in the hash since they don’t affect
\r
1243 Bail out on too hard compiler option <code>-Wp,-P</code>.
\r
1248 Optimized MD4 calculation code on little-endian systems.
\r
1253 Various improvements and fixes on win32.
\r
1258 Improved logging to the ccache log file.
\r
1263 Added <code>--dump-manifest</code> command-line option for debugging purposes.
\r
1268 Added <code>--with-bundled-zlib</code> configure option.
\r
1273 Upgraded bundled zlib to version 1.2.8.
\r
1278 Improved <code>dev.mk</code> to be more platform independent.
\r
1283 Made the test suite work with clang and gcc-llvm on OS X.
\r
1288 Various other improvements of the test suite.
\r
1293 <div class="sect2">
\r
1294 <h3 id="_bug_fixes_8">Bug fixes</h3>
\r
1295 <div class="ulist"><ul>
\r
1298 Any previous <code>.stderr</code> is now removed from the cache when recaching.
\r
1303 Fixed an issue when handling the <code>-arch</code> compiler option with an argument.
\r
1308 Fixed race condition when creating the initial cache directory.
\r
1313 Fixed test suite failures when <code>CC</code> is a ccache-wrapped compiler.
\r
1320 <div class="sect1">
\r
1321 <h2 id="_ccache_3_1_12">ccache 3.1.12</h2>
\r
1322 <div class="sectionbody">
\r
1323 <div class="paragraph"><p>Release date: 2016-07-12</p></div>
\r
1324 <div class="sect2">
\r
1325 <h3 id="_bug_fixes_9">Bug fixes</h3>
\r
1326 <div class="ulist"><ul>
\r
1329 Fixed a bug where (due to ccache rewriting paths) the compiler could choose
\r
1330 incorrect include files if <code>CCACHE_BASEDIR</code> is used and the source file path
\r
1331 is absolute and is a symlink.
\r
1338 <div class="sect1">
\r
1339 <h2 id="_ccache_3_1_11">ccache 3.1.11</h2>
\r
1340 <div class="sectionbody">
\r
1341 <div class="paragraph"><p>Release date: 2015-03-07</p></div>
\r
1342 <div class="sect2">
\r
1343 <h3 id="_bug_fixes_10">Bug fixes</h3>
\r
1344 <div class="ulist"><ul>
\r
1347 Fixed bug which could result in false cache hits when source code contains
\r
1348 <code>'"'</code> followed by <code>" /*"</code> or <code>" //"</code> (with variations).
\r
1353 Made hash of cached result created with and without <code>CCACHE_CPP2</code> different.
\r
1354 This makes it possible to rebuild with <code>CCACHE_CPP2</code> set without having to
\r
1355 clear the cache to get new results.
\r
1360 Don’t try to reset a non-existing stats file. This avoids “No such file or
\r
1361 directory” messages in the ccache log when the cache directory doesn’t
\r
1369 <div class="sect1">
\r
1370 <h2 id="_ccache_3_1_10">ccache 3.1.10</h2>
\r
1371 <div class="sectionbody">
\r
1372 <div class="paragraph"><p>Release date: 2014-10-19</p></div>
\r
1373 <div class="sect2">
\r
1374 <h3 id="_new_features_and_improvements_5">New features and improvements</h3>
\r
1375 <div class="ulist"><ul>
\r
1378 Added support for the <code>-Xclang</code> compiler option.
\r
1383 Improved handling of exit code of internally executed processes.
\r
1388 Zero length object files in the cache are now rejected as invalid.
\r
1393 Bail out on option <code>-gsplit-dwarf</code> (since it produces multiple output files).
\r
1398 Compiler option <code>-fdebug-prefix-map</code> is now ignored (not part of the hash).
\r
1399 (The <code>-fdebug-prefix-map</code> option may be used in combination with
\r
1400 <code>CCACHE_BASEDIR</code> to reuse results across different directories.)
\r
1405 Added note in documentation that <code>--ccache-skip</code> currently does not mean
\r
1406 “don’t hash the following option”.
\r
1411 To enable support for precompiled headers (PCH), <code>CCACHE_SLOPPINESS</code> now also
\r
1412 needs to include the new <code>pch_defines</code> sloppiness. This is because ccache
\r
1413 can’t detect changes in the source code when only defined macros have been
\r
1419 Stale files in the internal temporary directory (<code><ccache_dir>/tmp</code>) are now
\r
1420 cleaned up if they are older than one hour.
\r
1425 <div class="sect2">
\r
1426 <h3 id="_bug_fixes_11">Bug fixes</h3>
\r
1427 <div class="ulist"><ul>
\r
1430 Fixed path canonicalization in <code>make_relative_path()</code> when path doesn’t
\r
1436 Fixed bug in <code>common_dir_prefix_length()</code>. This corrects the <code>CCACHE_BASEDIR</code>
\r
1442 ccache no longer tries to create the cache directory when <code>CCACHE_DISABLE</code> is
\r
1448 Fixed bug when reading manifests with a very large number of file info
\r
1454 Fixed problem with logging of current working directory.
\r
1461 <div class="sect1">
\r
1462 <h2 id="_ccache_3_1_9">ccache 3.1.9</h2>
\r
1463 <div class="sectionbody">
\r
1464 <div class="paragraph"><p>Release date: 2013-01-06</p></div>
\r
1465 <div class="sect2">
\r
1466 <h3 id="_bug_fixes_12">Bug fixes</h3>
\r
1467 <div class="ulist"><ul>
\r
1470 The EAGAIN signal is now handled correctly when emitting cached stderr
\r
1471 output. This fixes a problem triggered by large error outputs from the
\r
1477 Subdirectories in the cache are no longer created in read-only mode.
\r
1482 Fixed so that ccache’s log file descriptor is not made available to the
\r
1488 Improved error reporting when failing to create temporary stdout/stderr files
\r
1489 when executing the compiler.
\r
1494 Disappearing temporary stdout/stderr files are now handled gracefully.
\r
1499 <div class="sect2">
\r
1500 <h3 id="_other">Other</h3>
\r
1501 <div class="ulist"><ul>
\r
1504 Fixed test suite to work on ecryptfs.
\r
1511 <div class="sect1">
\r
1512 <h2 id="_ccache_3_1_8">ccache 3.1.8</h2>
\r
1513 <div class="sectionbody">
\r
1514 <div class="paragraph"><p>Release date: 2012-08-11</p></div>
\r
1515 <div class="sect2">
\r
1516 <h3 id="_new_features_and_improvements_6">New features and improvements</h3>
\r
1517 <div class="ulist"><ul>
\r
1520 Made paths to dependency files relative in order to increase cache hits.
\r
1525 Added work-around to make ccache work with buggy GCC 4.1 when creating a
\r
1526 pre-compiled header.
\r
1531 Clang plugins are now hashed to catch plugin upgrades.
\r
1536 <div class="sect2">
\r
1537 <h3 id="_bug_fixes_13">Bug fixes</h3>
\r
1538 <div class="ulist"><ul>
\r
1541 Fixed crash when the current working directory has been removed.
\r
1546 Fixed crash when stderr is closed.
\r
1551 Corrected a corner case when parsing backslash escapes in string
\r
1557 Paths are now correctly canonicalized when computing paths relative to the
\r
1563 <div class="sect2">
\r
1564 <h3 id="_other_2">Other</h3>
\r
1565 <div class="ulist"><ul>
\r
1568 Made git version macro work when compiling outside of the source directory.
\r
1573 Fixed <code>static_assert</code> macro definition clash with GCC 4.7.
\r
1580 <div class="sect1">
\r
1581 <h2 id="_ccache_3_1_7">ccache 3.1.7</h2>
\r
1582 <div class="sectionbody">
\r
1583 <div class="paragraph"><p>Release date: 2012-01-08</p></div>
\r
1584 <div class="sect2">
\r
1585 <h3 id="_bug_fixes_14">Bug fixes</h3>
\r
1586 <div class="ulist"><ul>
\r
1589 Non-writable <code>CCACHE_DIR</code> is now handled gracefully when <code>CCACHE_READONLY</code> is
\r
1595 Made failure to create files (typically due to bad directory permissions) in
\r
1596 the cache directory fatal. Previously, such failures were silently and
\r
1597 erroneously flagged as "compiler produced stdout".
\r
1602 Both the <code>-specs=file</code> and <code>--specs=file</code> forms are now recognized.
\r
1607 Added recognition and hashing of GCC plugins specified with <code>-fplugin=file</code>.
\r
1612 <code>CCACHE_COMPILERCHECK</code> now also determines how to hash explicit specs files
\r
1613 (<code>-specs=file</code>).
\r
1618 Added <code>CPATH</code>, <code>C_INCLUDE_PATH</code> and similar environment variables to the hash
\r
1619 to avoid false cache hits when such variables have changed.
\r
1624 Corrected log message when unify mode is enabled.
\r
1629 Reverted the GCC bug compatibility introduced in ccache 3.1.5 for <code>-MT</code>/<code>-MQ</code>
\r
1630 options with concatenated arguments. (The bug is fixed in recent GCC
\r
1636 <div class="sect2">
\r
1637 <h3 id="_other_3">Other</h3>
\r
1638 <div class="ulist"><ul>
\r
1641 Corrected license header for <code>mdfour.c</code>.
\r
1646 Improved documentation on how to fix bad object files in the cache.
\r
1653 <div class="sect1">
\r
1654 <h2 id="_ccache_3_1_6">ccache 3.1.6</h2>
\r
1655 <div class="sectionbody">
\r
1656 <div class="paragraph"><p>Release date: 2011-08-21</p></div>
\r
1657 <div class="sect2">
\r
1658 <h3 id="_new_features_and_improvements_7">New features and improvements</h3>
\r
1659 <div class="ulist"><ul>
\r
1662 Rewrite argument to <code>--sysroot</code> if <code>CCACHE_BASEDIR</code> is used.
\r
1667 <div class="sect2">
\r
1668 <h3 id="_bug_fixes_15">Bug fixes</h3>
\r
1669 <div class="ulist"><ul>
\r
1672 Don’t crash if <code>getcwd()</code> fails.
\r
1677 Fixed alignment of “called for preprocessing” counter.
\r
1684 <div class="sect1">
\r
1685 <h2 id="_ccache_3_1_5">ccache 3.1.5</h2>
\r
1686 <div class="sectionbody">
\r
1687 <div class="paragraph"><p>Release date: 2011-05-29</p></div>
\r
1688 <div class="sect2">
\r
1689 <h3 id="_new_features_and_improvements_8">New features and improvements</h3>
\r
1690 <div class="ulist"><ul>
\r
1693 Added a new statistics counter named “called for preprocessing”.
\r
1698 The original command line is now logged to the file specified with
\r
1699 <code>CCACHE_LOGFILE</code>.
\r
1704 Improved error logging when system calls fail.
\r
1709 Added support for rewriting absolute paths in <code>-F</code>/<code>-iframework</code> GCC
\r
1715 Improved order of statistics counters in <code>ccache -s</code> output.
\r
1720 <div class="sect2">
\r
1721 <h3 id="_bug_fixes_16">Bug fixes</h3>
\r
1722 <div class="ulist"><ul>
\r
1725 The <code>-MF</code>/<code>-MT</code>/<code>-MQ</code> options with concatenated argument are now handled
\r
1726 correctly when they are last on the command line.
\r
1731 ccache is now bug compatible with GCC for the <code>-MT</code>/<code>-MQ</code> options with
\r
1732 concatenated arguments.
\r
1737 Fixed a minor memory leak.
\r
1742 Systems that lack (and don’t need to be linked with) libm are now supported.
\r
1749 <div class="sect1">
\r
1750 <h2 id="_ccache_3_1_4">ccache 3.1.4</h2>
\r
1751 <div class="sectionbody">
\r
1752 <div class="paragraph"><p>Release date: 2011-01-09</p></div>
\r
1753 <div class="sect2">
\r
1754 <h3 id="_bug_fixes_17">Bug fixes</h3>
\r
1755 <div class="ulist"><ul>
\r
1758 Made a work-around for a bug in <code>gzputc()</code> in zlib 1.2.5.
\r
1763 Corrupt manifest files are now removed so that they won’t block direct mode
\r
1769 ccache now copes with file systems that don’t know about symbolic links.
\r
1774 The file handle in now correctly closed on write error when trying to create
\r
1782 <div class="sect1">
\r
1783 <h2 id="_ccache_3_1_3">ccache 3.1.3</h2>
\r
1784 <div class="sectionbody">
\r
1785 <div class="paragraph"><p>Release date: 2010-11-28</p></div>
\r
1786 <div class="sect2">
\r
1787 <h3 id="_bug_fixes_18">Bug fixes</h3>
\r
1788 <div class="ulist"><ul>
\r
1791 The -MFarg, -MTarg and -MQarg compiler options (i.e, without space between
\r
1792 option and argument) are now handled correctly.
\r
1797 <div class="sect2">
\r
1798 <h3 id="_other_4">Other</h3>
\r
1799 <div class="ulist"><ul>
\r
1802 Portability fixes for HP-UX 11.00 and other esoteric systems.
\r
1809 <div class="sect1">
\r
1810 <h2 id="_ccache_3_1_2">ccache 3.1.2</h2>
\r
1811 <div class="sectionbody">
\r
1812 <div class="paragraph"><p>Release date: 2010-11-21</p></div>
\r
1813 <div class="sect2">
\r
1814 <h3 id="_bug_fixes_19">Bug fixes</h3>
\r
1815 <div class="ulist"><ul>
\r
1818 Bail out on too hard compiler options <code>-fdump-*</code>.
\r
1823 NULL return values from malloc/calloc of zero bytes are now handled
\r
1829 Fixed issue when parsing precompiler output on AIX.
\r
1834 <div class="sect2">
\r
1835 <h3 id="_other_5">Other</h3>
\r
1836 <div class="ulist"><ul>
\r
1839 Improved documentation on which information is included in the hash sum.
\r
1844 Made the “too new header file” test case work on file systems with
\r
1845 unsynchronized clocks.
\r
1850 The test suite now also works on systems that lack a /dev/zero.
\r
1857 <div class="sect1">
\r
1858 <h2 id="_ccache_3_1_1">ccache 3.1.1</h2>
\r
1859 <div class="sectionbody">
\r
1860 <div class="paragraph"><p>Release date: 2010-11-07</p></div>
\r
1861 <div class="sect2">
\r
1862 <h3 id="_bug_fixes_20">Bug fixes</h3>
\r
1863 <div class="ulist"><ul>
\r
1866 ccache now falls back to preprocessor mode when a non-regular include file
\r
1867 (device, socket, etc) has been detected so that potential hanging due to
\r
1868 blocking reads is avoided.
\r
1873 CRC errors are now detected when decompressing compressed files in the cache.
\r
1878 Fixed potential object file corruption race on NFS.
\r
1883 Minor documentation corrections.
\r
1888 Fixed configure detection of ar.
\r
1893 ccache development version (set by dev.mk) now works with gits whose
\r
1894 <code>describe</code> command doesn’t understand <code>--dirty</code>.
\r
1899 <div class="sect2">
\r
1900 <h3 id="_other_6">Other</h3>
\r
1901 <div class="ulist"><ul>
\r
1904 Minor debug log message improvements.
\r
1911 <div class="sect1">
\r
1912 <h2 id="_ccache_3_1">ccache 3.1</h2>
\r
1913 <div class="sectionbody">
\r
1914 <div class="paragraph"><p>Release date: 2010-09-16</p></div>
\r
1915 <div class="sect2">
\r
1916 <h3 id="_new_features_and_improvements_9">New features and improvements</h3>
\r
1917 <div class="ulist"><ul>
\r
1920 Added support for hashing the output of a custom command (e.g. <code>%compiler%
\r
1921 --version</code>) to identify the compiler instead of stat-ing or hashing the
\r
1922 compiler binary. This can improve robustness when the compiler (as seen by
\r
1923 ccache) actually isn’t the real compiler but another compiler wrapper.
\r
1928 Added support for caching compilations that use precompiled headers. (See the
\r
1929 manual for important instructions regarding this.)
\r
1934 Locking of the files containing statistics counters is now done using
\r
1935 symlinks instead of POSIX locks. This should make ccache behave a lot better
\r
1936 on file systems where POSIX locks are slow or broken (e.g. NFS on some
\r
1942 Manifest files are now updated without the need of taking locks.
\r
1947 Updates of statistics counters are now always done in one of the sub-level
\r
1948 statistics files. This reduces lock contention, which especially improves
\r
1949 performance on slow NFS mounts.
\r
1954 Reading and writing of statistics counters has been made forward-compatible
\r
1955 (unknown counters are retained).
\r
1960 Files are now read without using <code>mmap()</code>. This has two benefits: it’s more
\r
1961 robust against file changes during reading and it improves performance on
\r
1962 poor systems where <code>mmap()</code> doesn’t use the disk cache.
\r
1967 Added <code>.cp</code> and <code>.CP</code> as known C++ suffixes.
\r
1977 Added <code>-install_name</code> as an option known to take an argument. (This improves
\r
1978 statistics when using the Darwin linker.)
\r
1983 <div class="sect2">
\r
1984 <h3 id="_bug_fixes_21">Bug fixes</h3>
\r
1985 <div class="ulist"><ul>
\r
1988 Non-fatal error messages are now never printed to stderr but logged instead.
\r
1993 Fixed a bug affecting failing commands when <code>--ccache-skip</code> is used.
\r
1998 Made <code>--ccache-skip</code> work for all options.
\r
2003 EINTR is now handled correctly.
\r
2008 <div class="sect2">
\r
2009 <h3 id="_other_7">Other</h3>
\r
2010 <div class="ulist"><ul>
\r
2013 Work on porting ccache to win32 (native), mostly done by Ramiro Polla. The
\r
2014 port is not yet finished, but will hopefully be complete in some subsequent
\r
2020 Added a <code>--nostats</code> flag to the performance benchmark program.
\r
2025 Made the performance benchmark program more accurate when measuring cache
\r
2031 Added a new test framework for unit tests written in C.
\r
2036 Got rid of <code>configure-dev</code>; dev mode is now given by <code>dev.mk.in</code> presence.
\r
2041 Improved documentation on how to combine ccache with other compiler wrappers
\r
2042 (like <code>distcc</code>).
\r
2047 New <code>LICENSE.txt</code> file with licensing and copyright details about bundled
\r
2053 New <code>AUTHORS.txt</code> file with a list of ccache contributors.
\r
2058 New <code>HACKING.txt</code> file with some notes about ccache code conventions.
\r
2065 <div class="sect1">
\r
2066 <h2 id="_ccache_3_0_1">ccache 3.0.1</h2>
\r
2067 <div class="sectionbody">
\r
2068 <div class="paragraph"><p>Release date: 2010-07-15</p></div>
\r
2069 <div class="sect2">
\r
2070 <h3 id="_bug_fixes_22">Bug fixes</h3>
\r
2071 <div class="ulist"><ul>
\r
2074 The statistics counter “called for link” is now correctly updated when
\r
2075 linking with a single object file.
\r
2080 Fixed a problem with out-of-source builds.
\r
2087 <div class="sect1">
\r
2088 <h2 id="_ccache_3_0">ccache 3.0</h2>
\r
2089 <div class="sectionbody">
\r
2090 <div class="paragraph"><p>Release date: 2010-06-20</p></div>
\r
2091 <div class="sect2">
\r
2092 <h3 id="_general">General</h3>
\r
2093 <div class="ulist"><ul>
\r
2096 ccache is now licensed under the GNU General Public License (GPL) version 3
\r
2102 <div class="sect2">
\r
2103 <h3 id="_upgrade_notes">Upgrade notes</h3>
\r
2104 <div class="ulist"><ul>
\r
2107 The way the hashes are calculated has changed, so you won’t get cache hits
\r
2108 for compilation results stored by older ccache versions. Because of this, you
\r
2109 might as well clear the old cache directory with <code>ccache --clear</code> if you
\r
2110 want, unless you plan to keep using an older ccache version.
\r
2115 <div class="sect2">
\r
2116 <h3 id="_new_features_and_improvements_10">New features and improvements</h3>
\r
2117 <div class="ulist"><ul>
\r
2120 ccache now has a “direct mode” where it computes a hash of the source code
\r
2121 (including all included files) and compiler options without running the
\r
2122 preprocessor. By not running the preprocessor, CPU usage is reduced; the
\r
2123 speed is somewhere between 1 and 5 times that of ccache running in
\r
2124 traditional mode, depending on the circumstances. The speedup will be higher
\r
2125 when I/O is fast (e.g., when files are in the disk cache). The direct mode
\r
2126 can be disabled by setting <code>CCACHE_NODIRECT</code>.
\r
2131 Support has been added for rewriting absolute paths to relative paths when
\r
2132 hashing, in order to increase cache hit rate when building the same source
\r
2133 code in different directories even when compiling with <code>-g</code> and when using
\r
2134 absolute include directory paths. This is done by setting the
\r
2135 <code>CCACHE_BASEDIR</code> environment variable to an absolute path that specifies
\r
2136 which paths to rewrite.
\r
2141 Object files are now optionally stored compressed in the cache. The runtime
\r
2142 cost is negligible, and more files will fit in the ccache directory and in
\r
2143 the disk cache. Set <code>CCACHE_COMPRESS</code> to enable object file compression. Note
\r
2144 that you can’t use compression in combination with the hard link feature.
\r
2149 A <code>CCACHE_COMPILERCHECK</code> option has been added. This option tells ccache what
\r
2150 compiler-identifying information to hash to ensure that results retrieved
\r
2151 from the cache are accurate. Possible values are: none (don’t hash anything),
\r
2152 mtime (hash the compiler’s mtime and size) and content (hash the content of
\r
2153 the compiler binary). The default is mtime.
\r
2158 It is now possible to specify extra files whose contents should be included
\r
2159 in the hash sum by setting the <code>CCACHE_EXTRAFILES</code> option.
\r
2164 Added support for Objective-C and Objective-C++. The statistics counter
\r
2165 “not a C/C++ file” has been renamed to “unsupported source language”.
\r
2170 Added support for the <code>-x</code> compiler option.
\r
2175 Added support for long command-line options.
\r
2180 A <code>CACHEDIR.TAG</code> file is now created in the cache directory. See
\r
2181 <a href="http://www.brynosaurus.com/cachedir/">http://www.brynosaurus.com/cachedir/</a>.
\r
2186 Messages printed to the debug log (specified by <code>CCACHE_LOGFILE</code>) have been
\r
2192 You can relax some checks that ccache does in direct mode by setting
\r
2193 <code>CCACHE_SLOPPINESS</code>. See the manual for more information.
\r
2198 <code>CCACHE_TEMPDIR</code> no longer needs to be on the same filesystem as
\r
2199 <code>CCACHE_DIR</code>.
\r
2204 The default value of <code>CCACHE_TEMPDIR</code> has been changed to <code>$CCACHE_DIR/tmp</code>
\r
2205 to avoid cluttering the top directory.
\r
2210 Temporary files that later will be moved into the cache are now created in
\r
2211 the cache directory they will end up in. This makes ccache more friendly to
\r
2212 Linux’s directory layout.
\r
2217 Improved the test suite and added tests for most of the new functionality.
\r
2218 It’s now also possible to specify a subset of tests to run.
\r
2223 Standard error output from the compiler is now only stored in the cache if
\r
2224 it’s non-empty.
\r
2229 If the compiler produces no object file or an empty object file, but gives a
\r
2230 zero exit status (could be due to a file system problem, a buggy program
\r
2231 specified by <code>CCACHE_PREFIX</code>, etc.), ccache copes with it properly.
\r
2236 Added <code>installcheck</code> and <code>distcheck</code> make targets.
\r
2241 Clarified cache size limit options' and cleanup semantics.
\r
2246 Improved display of cache max size values.
\r
2251 The following options are no longer hashed in the preprocessor mode:
\r
2252 <code>-imacros</code>, <code>-imultilib</code>, <code>-iprefix</code>, <code>-iquote</code>, <code>-isysroot</code>, <code>-iwithprefix</code>,
\r
2253 <code>-iwithprefixbefore</code>, <code>-nostdinc</code>, <code>-nostdinc++</code> and <code>-U</code>.
\r
2258 <div class="sect2">
\r
2259 <h3 id="_bug_fixes_23">Bug fixes</h3>
\r
2260 <div class="ulist"><ul>
\r
2263 Various portability improvements.
\r
2268 Improved detection of home directory.
\r
2273 User-defined <code>CPPFLAGS</code> and <code>LDFLAGS</code> are now respected in the Makefile.
\r
2283 Computation of the hash sum has been improved to decrease the risk of hash
\r
2284 collisions. For instance, the compiler options <code>-X -Y</code> and <code>-X-Y</code> previously
\r
2285 contributed equally to the hash sum.
\r
2290 Bail out on too hard compiler options <code>--coverage</code>, <code>-fprofile-arcs</code>,
\r
2291 <code>-fprofile-generate</code>, <code>-fprofile-use</code>, <code>-frepo</code>, <code>-ftest-coverage</code> and
\r
2292 <code>-save-temps</code>. Also bail out on <code>@file</code> style options.
\r
2297 Errors when using multiple <code>-arch</code> compiler options are now noted as
\r
2298 “unsupported compiler option”.
\r
2303 <code>-MD</code>/<code>-MMD</code> options without <code>-MT</code>/<code>-MF</code> are now handled correctly.
\r
2308 The <code>-finput-charset</code> option is now handled correctly.
\r
2313 Added support for <code>-Wp,-MD</code> and <code>-Wp,-MMD</code> options.
\r
2318 The compiler options <code>-Xassembler</code>, <code>-b</code>, <code>-G</code> and <code>-V</code> are now correctly
\r
2319 recognized as taking an argument.
\r
2324 Debug information containing line numbers of predefined and command-line
\r
2325 macros (enabled with the compiler option <code>-g3</code>) will now be correct.
\r
2330 Corrected LRU cleanup handling of object files.
\r
2335 <code>utimes()</code> is now used instead of <code>utime()</code> when available.
\r
2340 Non-writable cache directories are now handled gracefully.
\r
2345 Corrected documentation about sharing the cache directory.
\r
2350 Fixed compilation warnings from GCC 4.3.
\r
2355 The command specified by <code>CCACHE_PREFIX</code> is no longer part of the hash.
\r
2360 Fixed bad memory access spotted by Valgrind.
\r
2365 Fixed a bug in <code>x_realloc</code>.
\r
2370 Freed memory is no longer referenced when compiling a <code>.i</code>/<code>.ii</code> file and
\r
2371 falling back to running the real compiler.
\r
2376 The test suite is now immune to external values of the <code>CCACHE_*</code> environment
\r
2382 Improved detection of recursive invocation.
\r
2387 The ccache binary is now not unconditionally stripped when installing.
\r
2392 Statistics counters are now correctly updated for -E option failures and
\r
2401 <div id="footnotes"><hr /></div>
\r
2403 <div id="footer-text">
\r
2404 Version 3.2.7<br />
\r
2406 2016-07-20 18:01:48 CEST
\r