[cmake-developers] [CMake 0012283]: Cmake -E echo kills performance of MinGW Makefiles

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://www.cmake.org/Bug/view.php?id=12283 
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Reported By:                Jérôme Gardou
Assigned To:                
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Project:                    CMake
Issue ID:                   12283
Category:                   CMake
Reproducibility:            always
Severity:                   tweak
Priority:                   normal
Status:                     new
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Date Submitted:             2011-06-16 15:07 EDT
Last Modified:              2011-06-16 15:07 EDT
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Summary:                    Cmake -E echo kills performance of MinGW Makefiles
Description: 
Instead of '@echo some text', MinGW Makefiles generator use '@cmake -E echo
"some text"'

Quoting cmake source code comment :

// mingw32-make has trouble running code like
//
//  @echo message with spaces
//
// If quotes are added
//
//  @echo "message with spaces"
//
// it runs but the quotes are displayed.  Instead just use cmake to
// echo.

which I am unable to confirm. Maybe an old version of mingw32-make?

Furthermore, using @echo avoids garbage output in case of a parallel build

Please find patch attached :-)

Steps to Reproduce: 
Just trigger a mingw32-make help into the build directory of a library, and
benchmark it with/without the patch. I can see the difference even with a medium
sized library.
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Issue History 
Date Modified    Username       Field                    Change               
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2011-06-16 15:07 Jérôme Gardou  New Issue                                    
2011-06-16 15:07 Jérôme Gardou  File Added:
0004-MinGW-Makefile-Generator-use-native-echo-command.patch                    
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