Ninja builds (https://martine.github.io/ninja/) should now work with Bro’s
master branch.
After installing it, Bro can use it like:
./configure --generator=Ninja
cd build && ninja
# May want to use —builddir if you want generated files to go somewhere
besides ./build
The benefit over generating standard Makefiles is it checks for out-of-date
targets quicker, which I’ve found to consume a majority of the build time for
just small source code changes (e.g. a few .cc files). Examples:
A “no-op” build:
$ time ninja >/dev/null
real 0m0.162s
user 0m0.119s
sys 0m0.083s
$ time make >/dev/null
real 0m8.280s
user 0m4.191s
sys 0m3.029s
Single source file changed:
$ touch src/Attr.cc
$ time ninja >/dev/null
real 0m1.715s
user 0m1.541s
sys 0m0.273s
$ time make >/dev/null
real 0m9.725s
user 0m5.723s
sys 0m3.223s
- Jon
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