<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>37102</bug_id>
          
          <creation_ts>2010-04-05 11:47:18 -0700</creation_ts>
          <short_desc>DerivedSources.make does not notice when FEATURE_DEFINES change</short_desc>
          <delta_ts>2012-05-14 14:21:15 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Tools / Tests</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Eric Seidel (no email)">eric</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>abarth</cc>
    
    <cc>darin</cc>
    
    <cc>ddkilzer</cc>
    
    <cc>mjs</cc>
    
    <cc>mrowe</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>208605</commentid>
    <comment_count>0</comment_count>
    <who name="Eric Seidel (no email)">eric</who>
    <bug_when>2010-04-05 11:47:18 -0700</bug_when>
    <thetext>DerivedSources.make does not notice when FEATURE_DEFINES change

This caused:
https://bugs.webkit.org/show_bug.cgi?id=36961#c21

One possible solution would be for DerivedSources.make to write out some sort of FEATURE_DEFINES file in DerivedSources/ during a build, and then if the incoming FEATURE_DEFINES are ever different from that file, simply rebuild everything.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>208895</commentid>
    <comment_count>1</comment_count>
    <who name="Maciej Stachowiak">mjs</who>
    <bug_when>2010-04-05 22:17:22 -0700</bug_when>
    <thetext>Sounds like a good idea to fix this.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>209058</commentid>
    <comment_count>2</comment_count>
    <who name="Darin Adler">darin</who>
    <bug_when>2010-04-06 08:35:20 -0700</bug_when>
    <thetext>I think this is critical to fix. I personally would fix it by eliminating FEATURE_DEFINES and using a file instead of an environment variable to communicate these settings. The build-webkit tool could generate the header file.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>209059</commentid>
    <comment_count>3</comment_count>
    <who name="Darin Adler">darin</who>
    <bug_when>2010-04-06 08:35:43 -0700</bug_when>
    <thetext>But I suppose the file would need to be a format that multiple tools could read, so perhaps it&apos;s impractical.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>623326</commentid>
    <comment_count>4</comment_count>
    <who name="Eric Seidel (no email)">eric</who>
    <bug_when>2012-05-14 14:21:15 -0700</bug_when>
    <thetext>I wonder if this old bug is still valid.  If it is, I wonder if landing bug 85456 will give us an easy way to fix it. :)</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>