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authorMike Frysinger <vapier@gentoo.org>2011-11-27 00:15:07 -0500
committerMike Frysinger <vapier@gentoo.org>2012-01-14 19:32:29 -0500
commita899b909abe14e8e35a81997c828201d1beaff78 (patch)
tree290f90323a9da4f107925f19bb2806f82d6adb90 /docs/pthreads_hacking.txt
parent93a11d8bb29423727cdd71c12b6ae8accc21997b (diff)
buildsys: cache build flags in vars
Running `make clean` atm takes like 20 seconds because every subdir re-evaluates all the toolchain flags. Add some helpers to automate the process of setting up variables to cache the result of tests, as well as the checking of an already set flag. Now `make clean` takes like 2 seconds on my system. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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