Hi Neundorf; Thanks for your kindly response on this issue.
>Usually it is not that slow. >Can you give us some more information ? >Of how many files consists your target approximately ? >Under which operating system ? >Is it maybe on NFS or samba ? I try to build a lib based on about 300 source files. OS: Ubuntu 10.04 based on Oracle VM VirtualBox. CMKAE: V 2.8.3 I use NFS, files share between WinXP and VM VirtualBox, but I don't think it is root cause here, since if only using native Linux Ext3, the same, very slow to scan dependency. Now I use make mylib/fast to go on, otherwise it will block undergoing process. My question: which factors will cause it so low? a) Bad design, header files dependency so much. b) CMake INCLUDE_DIRECTORIES, too many include? d) ... Thanks for your help. At 2011-06-03 13:11:05，"Alexander Neundorf" <a.neundorf-w...@gmx.net> wrote: >On Friday, June 03, 2011 04:01:54 AM jianhua wrote: >> Hey all; >> >> I am a new bible of CMAKE, I just use cmake to rewrite my previous project, >> the problem is that the process "Scanning dependencies of target " is >> really very slow, it will always take more than 20 to 30 minutes for >> scanning. What does CMAKE do to scan dependencies of target? Why so >> slow? Is it my project source files dependency issue? If yes, how do I >> improve it? Could you give me some guidence? > >Usually it is not that slow. >Can you give us some more information ? >Of how many files consists your target approximately ? >Under which operating system ? >Is it maybe on NFS or samba ? > >Alex
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