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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Fantastic, thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Might you add info on what “validate” understands to
<a href="https://ghc.haskell.org/trac/ghc/wiki/TestingPatches">https://ghc.haskell.org/trac/ghc/wiki/TestingPatches</a>?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">And ditto the V flags to<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><a href="https://ghc.haskell.org/trac/ghc/wiki/Building/Hacking">https://ghc.haskell.org/trac/ghc/wiki/Building/Hacking</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Simon<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Thomas Miedema [mailto:thomasmiedema@gmail.com]
<br>
<b>Sent:</b> 21 July 2015 22:33<br>
<b>To:</b> Reid Barton<br>
<b>Cc:</b> Simon Peyton Jones; ghc-devs@haskell.org<br>
<b>Subject:</b> Re: build system<o:p></o:p></span></p>
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What Reid said is correct. I just changed validate back to use V=1 though, since it seems like a better default. From
<a href="https://ghc.haskell.org/trac/ghc/wiki/Design/BuildSystem">https://ghc.haskell.org/trac/ghc/wiki/Design/BuildSystem</a>:<o:p></o:p></p>
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<o:p> </o:p></p>
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"The build system should clearly report what it's doing (and sometimes why), without being too verbose. It should emit actual command lines as much as possible, so that they can be inspected and cut & pasted. "<o:p></o:p></p>
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<o:p> </o:p></p>
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You can run `./validate --quiet` to get the previous behavior. <o:p></o:p></p>
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<o:p> </o:p></p>
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To make things sequential: you can use `CPUS=1 ./validate`.<o:p></o:p></p>
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<o:p> </o:p></p>
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<o:p> </o:p></p>
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<o:p> </o:p></p>
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On Tue, Jul 21, 2015 at 11:16 PM, Reid Barton <<a href="mailto:rwbarton@gmail.com" target="_blank">rwbarton@gmail.com</a>> wrote:<o:p></o:p></p>
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On Tue, Jul 21, 2015 at 4:21 PM, Simon Peyton Jones <<a href="mailto:simonpj@microsoft.com" target="_blank">simonpj@microsoft.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Friends<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">With the new build system I get this kind of output<o:p></o:p></p>
<p> HC [stage 1] compiler/stage2/build/SPARC/AddrMode.o<o:p></o:p></p>
<p> HC [stage 1] compiler/stage2/build/CmmContFlowOpt.o<o:p></o:p></p>
<p> HC [stage 1] compiler/stage2/build/CmmImplementSwitchPlans.o<o:p></o:p></p>
<p> AR libraries/Cabal/Cabal/dist-install/build/libHSCabal-1.23.0.0-752LrSyTT7YLYxOzpNXfM5.a<o:p></o:p></p>
<p>C:\fp\HP-2014-2.0.0.0\mingw\bin\ar.exe: creating libraries/Cabal/Cabal/dist-install/build/libHSCabal-1.23.0.0-752LrSyTT7YLYxOzpNXfM5.a<o:p></o:p></p>
<p> LD libraries/Cabal/Cabal/dist-install/build/HSCabal-1.23.0.0-752LrSyTT7YLYxOzpNXfM5.o<o:p></o:p></p>
<p> HC [stage 1] utils/ghc-cabal/dist-install/build/Main.o<o:p></o:p></p>
<p><b><span style="color:red">WARNING</span></b>: file compiler\specialise\Specialise.hs, line 724<o:p></o:p></p>
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<p class="MsoNormal">I assume this is when you run validate?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">But I have no idea which module caused the WARNING, nor do I have a command-line to copy/paste to reproduce it. (With the old module-at-a-time system I could copy/paste the command
line for the specific module.)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Is there a way to
<o:p></o:p></p>
<p><span style="font-family:Symbol">·</span><span style="font-size:7.0pt">
</span>make things sequential so I can tell which warnings from which module<o:p></o:p></p>
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<p class="MsoNormal">make -j1, which is make's default, but validate invokes make with -j2 or higher (depending on how many CPUs it thinks your system has).<o:p></o:p></p>
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<p><span style="font-family:Symbol">·</span><span style="font-size:7.0pt">
</span>get a command line to copy/paste to compile that module?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">validate sets the GHC build system variable V=0 in mk/<a href="http://are-validating.mk" target="_blank">are-validating.mk</a>. You can override it from the make command line with make V=1.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">So, you can run "make V=1" to restart the build serially and with the command to build each file displayed. Note that serial make may build modules in a different order than parallel make, so it may take a while
for make to get around to building the module that failed.<o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">Reid Barton<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
_______________________________________________<br>
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<a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs" target="_blank">http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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