Update Wiki URLs to point to GitLab

This moves all URL references to Trac Wiki to their corresponding
GitLab counterparts.

This substitution is classified as follows:

1. Automated substitution using sed with Ben's mapping rule [1]
    Old: ghc.haskell.org/trac/ghc/wiki/XxxYyy...
    New: gitlab.haskell.org/ghc/ghc/wikis/xxx-yyy...

2. Manual substitution for URLs containing `#` index
    Old: ghc.haskell.org/trac/ghc/wiki/XxxYyy...#Zzz
    New: gitlab.haskell.org/ghc/ghc/wikis/xxx-yyy...#zzz

3. Manual substitution for strings starting with `Commentary`
    Old: Commentary/XxxYyy...
    New: commentary/xxx-yyy...

See also !539

[1]: https://gitlab.haskell.org/bgamari/gitlab-migration/blob/master/wiki-mapping.json

33 files changed, 65 insertions, 65 deletions

diff --git a/utils/check-api-annotations/ghc.mk b/utils/check-api-annotations/ghc.mk
index 61f896d3d7..413d433ce5 100644
--- a/utils/check-api-annotations/ghc.mk
+++ b/utils/check-api-annotations/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/check-ppr/ghc.mk b/utils/check-ppr/ghc.mk
index 189b447171..08e4062256 100644
--- a/utils/check-ppr/ghc.mk
+++ b/utils/check-ppr/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/deriveConstants/Makefile b/utils/deriveConstants/Makefile
index ec37231447..26f1432444 100644
--- a/utils/deriveConstants/Makefile
+++ b/utils/deriveConstants/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/deriveConstants/ghc.mk b/utils/deriveConstants/ghc.mk
index e2789991c1..98c8633666 100644
--- a/utils/deriveConstants/ghc.mk
+++ b/utils/deriveConstants/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/gen-dll/Makefile b/utils/gen-dll/Makefile
index 8b17a7ec76..215b80d60a 100644
--- a/utils/gen-dll/Makefile
+++ b/utils/gen-dll/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/gen-dll/ghc.mk b/utils/gen-dll/ghc.mk
index 5b4ba3a398..77c75f07ed 100644
--- a/utils/gen-dll/ghc.mk
+++ b/utils/gen-dll/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/genapply/Main.hs b/utils/genapply/Main.hs
index 7038dc5c09..f35897ba9d 100644
--- a/utils/genapply/Main.hs
+++ b/utils/genapply/Main.hs
@@ -8,7 +8,7 @@
 -- The above warning suppression flags are a temporary kludge.
 -- While working on this module you are encouraged to remove it and fix
 -- any warnings in the module. See
---     http://ghc.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+--     https://gitlab.haskell.org/ghc/ghc/wikis/commentary/coding-style#warnings
 -- for details
 module Main(main) where
 
diff --git a/utils/genapply/Makefile b/utils/genapply/Makefile
index 1d94fcdb73..cc76328b70 100644
--- a/utils/genapply/Makefile
+++ b/utils/genapply/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/genapply/ghc.mk b/utils/genapply/ghc.mk
index e0e5886521..88b3444275 100644
--- a/utils/genapply/ghc.mk
+++ b/utils/genapply/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/genprimopcode/Makefile b/utils/genprimopcode/Makefile
index 11eff3146e..1e35f27228 100644
--- a/utils/genprimopcode/Makefile
+++ b/utils/genprimopcode/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/genprimopcode/ghc.mk b/utils/genprimopcode/ghc.mk
index 790c75dbb2..47250711a9 100644
--- a/utils/genprimopcode/ghc.mk
+++ b/utils/genprimopcode/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/ghc-cabal/Makefile b/utils/ghc-cabal/Makefile
index c405314e61..88396b2e97 100644
--- a/utils/ghc-cabal/Makefile
+++ b/utils/ghc-cabal/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/ghc-cabal/ghc.mk b/utils/ghc-cabal/ghc.mk
index 9e403758fa..3de7a62798 100644
--- a/utils/ghc-cabal/ghc.mk
+++ b/utils/ghc-cabal/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/ghc-pkg/Makefile b/utils/ghc-pkg/Makefile
index 57fe1445a9..9a3a1cf20b 100644
--- a/utils/ghc-pkg/Makefile
+++ b/utils/ghc-pkg/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/ghc-pkg/ghc.mk b/utils/ghc-pkg/ghc.mk
index 4d5ef4e108..a063e0b787 100644
--- a/utils/ghc-pkg/ghc.mk
+++ b/utils/ghc-pkg/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/hp2ps/Makefile b/utils/hp2ps/Makefile
index 7b31d72494..12c397c6ac 100644
--- a/utils/hp2ps/Makefile
+++ b/utils/hp2ps/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/hp2ps/ghc.mk b/utils/hp2ps/ghc.mk
index 21ce87dcfa..bd62fbedef 100644
--- a/utils/hp2ps/ghc.mk
+++ b/utils/hp2ps/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/hpc/Makefile b/utils/hpc/Makefile
index 378b063b9e..b8707773ad 100644
--- a/utils/hpc/Makefile
+++ b/utils/hpc/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/hpc/ghc.mk b/utils/hpc/ghc.mk
index f70be94599..9b2bce238e 100644
--- a/utils/hpc/ghc.mk
+++ b/utils/hpc/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/iserv-proxy/Makefile b/utils/iserv-proxy/Makefile
index dec92996f7..2ce8bf84d4 100644
--- a/utils/iserv-proxy/Makefile
+++ b/utils/iserv-proxy/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/iserv-proxy/ghc.mk b/utils/iserv-proxy/ghc.mk
index b90a96a1fa..479b72e9b0 100644
--- a/utils/iserv-proxy/ghc.mk
+++ b/utils/iserv-proxy/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/iserv/Makefile b/utils/iserv/Makefile
index 361985852f..6d14213bac 100644
--- a/utils/iserv/Makefile
+++ b/utils/iserv/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/iserv/ghc.mk b/utils/iserv/ghc.mk
index 194621a85c..74f90e60b7 100644
--- a/utils/iserv/ghc.mk
+++ b/utils/iserv/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/mkdirhier/Makefile b/utils/mkdirhier/Makefile
index a27cf2b461..363ccd1cd1 100644
--- a/utils/mkdirhier/Makefile
+++ b/utils/mkdirhier/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/mkdirhier/ghc.mk b/utils/mkdirhier/ghc.mk
index 2e3a301c9a..a574b86861 100644
--- a/utils/mkdirhier/ghc.mk
+++ b/utils/mkdirhier/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/remote-iserv/Makefile b/utils/remote-iserv/Makefile
index c659a21a20..23054135ca 100644
--- a/utils/remote-iserv/Makefile
+++ b/utils/remote-iserv/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/remote-iserv/ghc.mk b/utils/remote-iserv/ghc.mk
index db8f32fc22..f0cd9ffa49 100644
--- a/utils/remote-iserv/ghc.mk
+++ b/utils/remote-iserv/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/runghc/Makefile b/utils/runghc/Makefile
index 01b3b53e29..91230eceb2 100644
--- a/utils/runghc/Makefile
+++ b/utils/runghc/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/runghc/ghc.mk b/utils/runghc/ghc.mk
index 50b11a612e..65a3ca88d6 100644
--- a/utils/runghc/ghc.mk
+++ b/utils/runghc/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/touchy/Makefile b/utils/touchy/Makefile
index a16e48bc9a..c0eb696cc6 100644
--- a/utils/touchy/Makefile
+++ b/utils/touchy/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/touchy/ghc.mk b/utils/touchy/ghc.mk
index e1ac2745c5..9c093c19cf 100644
--- a/utils/touchy/ghc.mk
+++ b/utils/touchy/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/unlit/Makefile b/utils/unlit/Makefile
index 24bd615b26..5a6bdc3546 100644
--- a/utils/unlit/Makefile
+++ b/utils/unlit/Makefile
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------
 
diff --git a/utils/unlit/ghc.mk b/utils/unlit/ghc.mk
index 0560aa57b8..fe38cbbd0f 100644
--- a/utils/unlit/ghc.mk
+++ b/utils/unlit/ghc.mk
@@ -5,8 +5,8 @@
 # This file is part of the GHC build system.
 #
 # To understand how the build system works and how to modify it, see
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
-#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/architecture
+#      https://gitlab.haskell.org/ghc/ghc/wikis/building/modifying
 #
 # -----------------------------------------------------------------------------