[webkit-dev] Extra step required to build Windows Release configuration in VC++ Express

Adam Roben aroben at apple.com
Wed Mar 12 21:36:34 PDT 2008

To all VC++ Express users:

We recently enabled Profile-Guided Optimization (PGO) in the Windows 
Release build by default. Unfortunately, VC++ Express doesn't support 
PGO, so if you want to build Release under VC++ Express you must first 
run the following command from the Cygwin prompt:

sed -i -e 's/LinkTimeCodeGeneration="4"/LinkTimeCodeGeneration="1"/' 

These instructions can also be found at 

We're looking for a way to make this step no longer necessary for VC++ 
Express users. <http://bugs.webkit.org/show_bug.cgi?id=17817> is 
tracking this issue. We apologize for the inconvenience!


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