gentoo resync : 14.07.2018

1 files changed, 28 insertions, 0 deletions

diff --git a/dev-haskell/mtl-compat/metadata.xml b/dev-haskell/mtl-compat/metadata.xml
new file mode 100644
index 000000000000..033f9421a7a1
--- /dev/null
+++ b/dev-haskell/mtl-compat/metadata.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>haskell@gentoo.org</email>
+		<name>Gentoo Haskell</name>
+	</maintainer>
+	<longdescription>
+		This package backports the "Control.Monad.Except" module from
+		@mtl@ (if using @mtl-2.2.0.1@ or earlier), which reexports the
+		@ExceptT@ monad transformer and the @MonadError@ class.
+		
+		This package should only be used if there is a need to use the
+		@Control.Monad.Except@ module specifically. If you just want
+		the @mtl@ class instances for @ExceptT@, use
+		@transformers-compat@ instead, since @mtl-compat@ does nothing
+		but reexport the instances from that package.
+		
+		Note that unlike how @mtl-2.2@ or later works, the
+		"Control.Monad.Except" module defined in this package exports
+		all of @ExceptT@'s monad class instances. Therefore, you may
+		have to declare @import Control.Monad.Except ()@ at the top of
+		your file to get all of the @ExceptT@ instances in scope.
+	</longdescription>
+	<upstream>
+		<remote-id type="github">RyanGlScott/mtl-compat</remote-id>
+	</upstream>
+</pkgmetadata>