Date: Fri, 03 Aug 2012 20:05:54 -0500 From: Bryan Drewery <bdrewery@FreeBSD.org> To: ports@FreeBSD.org Subject: [CFT] [bsd.port.mk] ports ccache build support Message-ID: <501C7572.3020707@FreeBSD.org>
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Hi,
ports/169579 is currently tracking this.
This patch adds ccache support to ports (off by default). Other patches
have changed $CC to use ccache, which results in having a space in $CC.
This breaks many ports such as boost and libtool ports.
This patch however utilizes the symlinks in
/usr/local/libexec/ccache/{cc,gcc,etc...} by prefixing that directory
into $PATH in the $MAKE_ENV.
Using this method, I have seen 0 failures, compared to the $CC method
which results in many build failures and requiring to define which ports
do not support ccache.
To enable: Define WITH_CCACHE_BUILD=yes in /etc/make.conf
The cache directory CCACHE_DIR defaults to /usr/obj/ccache
Defining NO_CCACHE can disable ccache support in make.conf or in a port.
This is mostly to allow compatibility with current setups utilizing
NO_CCACHE.
If $CC already contains ccache, the support is disabled in case of
custom setup.
Users can override other ccache env variables [1] by using MAKE_ENV+= in
their make.conf. Such as:
MAKE_ENV+= CCACHE_LOGFILE=/var/log/ccache.log
To use ccache(1) from the command line to configure the size or view
stats: CCACHE_DIR=/usr/obj/ccache ccache -s
FWIW, this is also possible to achieve with bsd.local.mk [2], but it
would be much nicer to support without needing to customize your checkout.
[1] https://ccache.samba.org/manual.html#_environment_variables
[2] http://fossil.etoilebsd.net/poudriere/doc/trunk/doc/ccache.wiki
--
Regards,
Bryan Drewery
bdrewery@freenode/EFNet
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