Ah. The idea is that the version at least gets updated when you reconfigure, but that's already there by removing the output file.
Please don't remove HAVE_SVN_VERSION_INC, though. A slightly outdated version is still better than no version at all. Jordan On Oct 1, 2013, at 7:14 , Rafael Espíndola <[email protected]> wrote: > Most of the time in a null build is spent checking the svn revision > number. This is very wasteful in a regular development environment. > > If I understand CLANG_ALWAYS_CHECK_VC_REV correctly, it is also the > case that the version is not even always used, so we spend time for > nothing. > > The attached patch moves the entire version check under > CLANG_ALWAYS_CHECK_VC_REV. On my machine that makes a null build of > bin/clang 11 times faster. > > Cheers, > Rafael
t.patch
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