[ros-bugs] [Bug 4994] New: Compiling the IDLs randomly fails when building with many concurrent jobs

[ReactOS.Bugzilla at reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=4994

           Summary: Compiling the IDLs randomly fails when building with
                    many concurrent jobs
           Product: ReactOS
           Version: TRUNK
          Platform: QEmu
        OS/Version: ReactOS
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: Tools
        AssignedTo: hackbunny at reactos.org
        ReportedBy: mail at colinfinck.de
         QAContact: ros-bugs at reactos.org
                CC: hto at dev.null


When building ReactOS with e.g. "make -j 7", the builds randomly fail when 
compiling the IDL stuff.
See for example the Release BuildBot at: 
http://build.reactos.org:8010/builders/x86_%28Release%29/builds/2217/steps/compile_1/logs/stdio 
(running RosBE-Unix 1.4.2)

This has also been reproduced successfully under a Windows 7-based Core i7 host 
(Caemyr's machine). See the attached build logs for similar compilation 
failures. (reproduced using RosBE-Windows 1.5 RC1 with the latest patch at bug 
4810)

I suspect that this could be due to missing preconditions for compiling the IDL 
stuff. Dmitry (hto) also suspected that a race condition occurs here, namely 
when WIDL has not yet finished its work and GCC already tries to compile it.


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