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dev-lang/GHC: add missing patch
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packages/dev-lang/GHC/files/GHC-8.8.1-no-alex.patch
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33
packages/dev-lang/GHC/files/GHC-8.8.1-no-alex.patch
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https://github.com/gentoo-haskell/gentoo-haskell/issues/959
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From 144abba394c6a23eb877fbde727111a5e75b9d47 Mon Sep 17 00:00:00 2001
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From: Ben Gamari <ben@smart-cactus.org>
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Date: Wed, 18 Sep 2019 23:50:20 -0400
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Subject: [PATCH] configure: Don't depend upon alex in source dist build
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This fixes #16860 by verifying that the generated sources don't already
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exist before asserting that the `alex` executable was found. This
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replicates the logic already used for `happy` in the case of `alex`.
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---
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aclocal.m4 | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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--- a/aclocal.m4
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+++ b/aclocal.m4
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@@ -984,8 +984,11 @@ else
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fi;
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changequote([, ])dnl
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])
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-FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[3.1.7],
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- [AC_MSG_ERROR([Alex version 3.1.7 or later is required to compile GHC.])])[]
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+if test ! -f compiler/parser/Lexer.hs
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+then
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+ FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[3.1.7],
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+ [AC_MSG_ERROR([Alex version 3.1.7 or later is required to compile GHC.])])[]
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+fi
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AlexVersion=$fptools_cv_alex_version;
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AC_SUBST(AlexVersion)
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])
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--
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2.23.0
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