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Date Submitted

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0008777

CMake

public

2009-03-21 20:27

2016-06-10 14:30

Reporter

Daniel Nelson

Assigned To

Bill Hoffman

Priority

normal

Severity

feature

Reproducibility

always

Status

closed

Resolution

moved

Platform

OS Version

Product Version

CMake-2-6

Target Version

Fixed in Version

Summary

0008777: Let INCLUDE_REGULAR_EXPRESSION match against header file name with enclosing <> or ""

Description

It would be very useful if the string set by the include_regular_expression command was matched against the header file including its enclosing <> or "". This would allow exclusion of includes with the format #include <header>.

The reason for doing this is a huge speed improvement. I had a project that was using precompiled headers and cmake was spending a lot of time doing dependency calculations. The depends.make for only one of about 10 projects had grown to about 15MB, and almost all of the dependencies were being pulled in by the precompiled header file. We didn't really need to trace dependencies into system libraries since they don't change often and when they do, we generally need to rebuild everything anyway. So it was worth the speed boost to skip checking them. After modifying the version of cmake we are using internally to skip all headers included with angle brackets, build times running make went from 10 minutes to 8, and the time to run cmake from 1m20s to about 20s.

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Notes
(0041524) Kitware Robot (administrator) 2016-06-10 14:27	Resolving issue as `moved`. This issue tracker is no longer used. Further discussion of this issue may take place in the current CMake Issues page linked in the banner at the top of this page.

Issue History
Date Modified	Username	Field	Change
2009-03-21 20:27	Daniel Nelson	New Issue
2009-03-22 21:53	Bill Hoffman	Status	new => assigned
2009-03-22 21:53	Bill Hoffman	Assigned To	=> Bill Hoffman
2016-06-10 14:27	Kitware Robot	Note Added: 0041524
2016-06-10 14:27	Kitware Robot	Status	assigned => resolved
2016-06-10 14:27	Kitware Robot	Resolution	open => moved
2016-06-10 14:30	Kitware Robot	Status	resolved => closed