| I suspect that this is due to a previously-failed build and #17534. | The workaround is to remove the traces of the half-finished build: | | rm | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.* | | and rerun the build; this may require multiple iterations. Ugh. That's not a very happy state of affairs, is it? It didn't happen with 'make'. Is it a fundamental problem, or just not yet fixed? Simon | -----Original Message----- | From: Ben Gamari | Sent: 09 December 2019 22:28 | To: Simon Peyton Jones ; ghc-devs@haskell.org | Subject: Re: More failure | | Simon Peyton Jones via ghc-devs writes: | | > More pain. I said | > sh validate --fast --no-clean | > and got this output | > | > Error when running Shake build system: | > | > at action, called at src/Rules.hs:71:19 in main:Rules | > | > at need, called at src/Rules.hs:93:5 in main:Rules | > | > * Depends on: _validatebuild/stage1/lib/package.conf.d/base- | 4.14.0.0.conf | > | > at need, called at src/Rules/Register.hs:113:5 in main:Rules.Register | > | > * Depends on: _validatebuild/stage1/libraries/base/build/libHSbase- | 4.14.0.0-ghc8.11.0.20191201.so | > | > at need, called at src/Rules/Library.hs:146:5 in main:Rules.Library | > | > * Depends on: | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.dyn_ | o | > | > at &%>, called at src/Rules/Compile.hs:54:7 in main:Rules.Compile | > | > * Depends on: | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.dyn_ | o | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.dyn_ | hi | > | > at error, called at | src/Development/Shake/Internal/Rules/Files.hs:245:13 in shake-0.18.3- | 593067565aafb558d09b4352b8abc327d8911a39a0e9abab2804b002b1ae536e:Developm | ent.Shake.Internal.Rules.Files | > | > * Raised the exception: | > | > Error, &%> rule failed to produce 1 file (out of 2) | > | > | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.dyn_ | o | > | > | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.dyn_ | hi - MISSING | | I suspect that this is due to a previously-failed build and #17534. | The workaround is to remove the traces of the half-finished build: | | rm | _validatebuild/stage1/libraries/base/build/GHC/IO/Handle/Lock/Common.* | | and rerun the build; this may require multiple iterations. | | Cheers, | | - Ben