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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2014-08-28 23:03:44 +0200 |
|---|---|---|
| committer | Peter Korsgaard <peter@korsgaard.com> | 2014-08-29 09:17:33 +0200 |
| commit | 3e37b0fc6cbbe2245e39fedb247a381fb4e0d992 (patch) | |
| tree | 6082543ea5401942cd0eb951a848cedd3c65079c /package/pkg-autotools.mk | |
| parent | 49e36dcf1307b81b7f24c9d7feab71183d86c2e9 (diff) | |
pkg-autotools: use --disable-dependency-tracking
By default, automake does "dependency tracking", which allows the
generated Makefile to contain the necessary dependencies to
automatically rebuild the appropriate C files when included header
files are changed. This dependency tracking is nice when doing active
development on the package, but not really useful when doing a
one-time build of the package. According to automake's
documentation[1], disabling the dependency tracking provides a small
speed-up.
In some very unscientific measurements (i.e repeated only once), we
have noticed a ~3.6% reduction of the total build time of a Buildroot
toolchain after applying this patch.
[1] http://www.gnu.org/software/automake/manual/html_node/Dependency-Tracking.html
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'package/pkg-autotools.mk')
| -rw-r--r-- | package/pkg-autotools.mk | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/package/pkg-autotools.mk b/package/pkg-autotools.mk index bcc648dd6..83299cf54 100644 --- a/package/pkg-autotools.mk +++ b/package/pkg-autotools.mk @@ -140,6 +140,7 @@ define $(2)_CONFIGURE_CMDS --disable-documentation \ --with-xmlto=no \ --with-fop=no \ + --disable-dependency-tracking \ $$(DISABLE_NLS) \ $$(DISABLE_LARGEFILE) \ $$(DISABLE_IPV6) \ @@ -169,6 +170,7 @@ define $(2)_CONFIGURE_CMDS --disable-documentation \ --with-xmlto=no \ --with-fop=no \ + --disable-dependency-tracking \ $$(QUIET) $$($$(PKG)_CONF_OPT) \ ) endef |