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-rw-r--r--gnu/packages/haskell.scm24
1 files changed, 24 insertions, 0 deletions
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 76daf5b54b..8427ce99a8 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -1939,6 +1939,30 @@ case with other forms of concurrent communication, such as locks or
"This package provides a library for parallel programming.")
(license license:bsd-3)))
+(define-public ghc-safesemaphore
+ (package
+ (name "ghc-safesemaphore")
+ (version "0.10.1")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append "https://hackage.haskell.org/package/"
+ "SafeSemaphore/SafeSemaphore-" version ".tar.gz"))
+ (sha256
+ (base32
+ "0rpg9j6fy70i0b9dkrip9d6wim0nac0snp7qzbhykjkqlcvvgr91"))))
+ (build-system haskell-build-system)
+ (inputs
+ `(("ghc-stm" ,ghc-stm)))
+ (native-inputs
+ `(("ghc-hunit" ,ghc-hunit)))
+ (home-page "https://github.com/ChrisKuklewicz/SafeSemaphore")
+ (synopsis "Exception safe semaphores")
+ (description "This library provides exception safe semaphores that can be
+used in place of @code{QSem}, @code{QSemN}, and @code{SampleVar}, all of which
+are not exception safe and can be broken by @code{killThread}.")
+ (license license:bsd-3)))
+
(define-public ghc-text
(package
(name "ghc-text")