Merge pull request #4133 from peti/t/add-cgi-library

add 'cgi' library to Stackage

build-constraints.yaml

@@ -2276,6 +2276,7 @@ packages:
     "Peter Simons <simons@cryp.to> @peti":
         - cabal2nix
         - cabal2spec
+        - cgi
         - distribution-nixpkgs
         - distribution-opensuse
         - flexible-defaults
@@ -2293,6 +2294,7 @@ packages:
         - language-nix
         - logging-facade-syslog
         - MonadPrompt
+        - multipart             # for cgi
         - nix-paths
         - parsec-class
         - prim-uniq
@@ -2301,6 +2303,7 @@ packages:
         - rvar
         - SafeSemaphore
         - streamproc
+        - stringsearch          # for cgi
         - titlecase
         - xmonad
 
@@ -4031,7 +4034,6 @@ packages:
         - monoid-subclasses < 0
         - monoidal-containers < 0
         - morte < 0
-        - multipart < 0
         - mwc-probability-transition < 0
         - mysql-haskell-nem < 0
         - mysql-haskell-openssl < 0
@@ -4153,7 +4155,6 @@ packages:
         - stm-containers < 0
         - stm-hamt < 0
         - stratosphere < 0
-        - stringsearch < 0
         - strive < 0
         - summoner < 0
         - swish < 0