Ninja is a small build system developed by Evan Martin, a Google employee. Ninja has a focus on speed and it differs from other build systems in two major respects: it is designed to have its input fi…

} } } } } } } } } GN depends on Ninja. Such as build all: phony || app.exe. pools: In order to support concurrent jobs, Ninja also supports the pool mechanism, the same as using the -j parallel mode.topcoder.comThe Ninja build log is saved in the root directory of the build process or in the .ninja_log file in the directory corresponding to the builddir variable.

} } } } } } } } } } If you modify the gn settings in the future, you don’t need to re-run gn, ninja will automatically update the settings. It makes the incremental build easier. GN depends on Ninja.topcoder.comNinja uses build.ninja files to define build rules. Unlike metaprogramming in Makefiles, build.ninja is almost completely static.