Cabal-Version:       2.2
Build-Type:          Simple

Name:                psx
Version:             0.1.0.0
Synopsis:            Integrate @libpsx@ with the GHC RTS
Description:
  This library embeds libpsx in a GHC Haskell-compiled application.
  .
  Note @libpsx@ performs some trickery with signal handling in a process.
  Furthermore, when using this library, @sigfillset@ will be wrapped so
  @SIGSYS@ is /not/ set, in order for the GHC RTS @ticker@ thread not to
  block the signal and work properly with @libpsx@.
  .
  __Warning:__ @libpsx@ on current Ubuntu and Debian systems (from @libcap@
  2.44) is broken. Hence, this library contains a bundled version of @libpsx@
  by default. Disable the @bundled-libpsx@ flag to use a system-provided
  version of the library, which must be from @libcap@ version 2.46 or higher.
  The license of the bundled library can be found in @cbits\/psx\/License@.
Homepage:            https://github.com/NicolasT/landlock-hs
Bug-Reports:         https://github.com/NicolasT/landlock-hs/issues
License:             BSD-3-Clause
License-File:        LICENSE
Author:              Nicolas Trangez
Maintainer:          ikke@nicolast.be
Copyright:           (c) 2022 Nicolas Trangez
Category:            System
Stability:           alpha

Extra-Source-Files:
  CHANGELOG.md
  README.md
  cbits/hs-psx.h
  cbits/psx/License
  cbits/psx/psx_syscall.h
  test/detect-psx.h

Tested-With:         GHC ==8.10.5
                   , GHC ==9.0.2
                   , GHC ==9.2.2

Source-Repository head
  Type:                git
  Location:            https://github.com/NicolasT/landlock-hs.git
  Subdir:              psx
  Branch:              main

Flag bundled-libpsx
  Description:         Use the bundled libpsx instead of a (potentially broken) system-provided version. See @cbits\/psx\/License@.
  Default:             True
  Manual:              True

Library
  -- Despite this library not containing any Haskell code, and
  -- hence not really having any dependency on `base`, it is
  -- only *tested* on particular GHC versions (which we can tie
  -- to some version of `base`). Given the intricate interaction
  -- between this package functionality working as expected (cfr.
  -- the `sigfillset` wrapping) and the GHC RTS, it seems wise to
  -- restrict compatibility with said GHC version(s).
  Exposed-Modules:     System.PSX
  Hs-Source-Dirs:      src
  Build-Depends:       base ^>=4.14.2.0 || ^>=4.15 || ^>=4.16
  Include-Dirs:        cbits
  Install-Includes:    hs-psx.h
  C-Sources:           cbits/hs-psx.c
  Cc-Options:          -Wall
  Ld-Options:          -Wl,-wrap,sigfillset -Wl,-undefined,__wrap_sigfillset
  Default-Language:    Haskell2010
  Ghc-Options:         -Wall
  if flag(bundled-libpsx)
    C-Sources:         cbits/psx/psx.c
    Cc-Options:        -DBUNDLED_LIBPSX
    Ld-Options:        -pthread -Wl,-wrap,pthread_create
  else
    Pkgconfig-Depends: libpsx

Test-Suite psx-test-threaded
  Type:                exitcode-stdio-1.0
  Hs-Source-Dirs:      test
  Main-Is:             psx-test-threaded.hs
  Other-Modules:       TestCases
  C-Sources:           test/detect-psx.c
  Include-Dirs:        test
  Build-Depends:       psx
                     , base
                     , async ^>=2.2.3
                     , tasty ^>=1.4.1
                     , tasty-hunit ^>=0.10.0.3
  Default-Language:    Haskell2010
  Ghc-Options:         -Wall -threaded -with-rtsopts -N2

Test-Suite psx-test
  Type:                exitcode-stdio-1.0
  Hs-Source-Dirs:      test
  Main-Is:             psx-test.hs
  Other-Modules:       TestCases
  C-Sources:           test/detect-psx.c
  Include-Dirs:        test
  Build-Depends:       psx
                     , base
                     , async ^>=2.2.3
                     , tasty ^>=1.4.1
                     , tasty-hunit ^>=0.10.0.3
  Default-Language:    Haskell2010
  Ghc-Options:         -Wall

Test-Suite psx-test-no-psx
  Type:                exitcode-stdio-1.0
  Hs-Source-Dirs:      test
  Main-Is:             psx-test-no-psx.hs
  C-Sources:           test/detect-psx.c
  Include-Dirs:        test
                       cbits
  Build-Depends:       base
                     , tasty ^>=1.4.1
                     , tasty-hunit ^>=0.10.0.3
  Default-Language:    Haskell2010
  Ghc-Options:         -Wall