diff --git a/cabal-install/Distribution/Client/Install.hs b/cabal-install/Distribution/Client/Install.hs
index a81562742ba7a5d103738bc8be7424ecc887f27d..b34dc6f13f5b051f53357a6016fae2a169006c84 100644
--- a/cabal-install/Distribution/Client/Install.hs
+++ b/cabal-install/Distribution/Client/Install.hs
@@ -47,7 +47,6 @@ import System.Exit
( ExitCode(..) )
import Distribution.Compat.Exception
( catchIO, catchExit )
-import Control.Exception ( assert )
import Control.Monad
( forM_, mapM )
import System.Directory
@@ -1427,9 +1426,7 @@ installUnpackedPackage verbosity installLock numJobs
ipkgs <- genPkgConfs mLogPath
let ipkgs' = case ipkgs of
[ipkg] -> [ipkg { Installed.installedUnitId = uid }]
- _ -> assert (any ((== uid)
- . Installed.installedUnitId)
- ipkgs) ipkgs
+ _ -> ipkgs
let packageDBs = interpretPackageDbFlags
(fromFlag (configUserInstall configFlags))
(configPackageDBs configFlags)
diff --git a/cabal-install/cabal-install.cabal b/cabal-install/cabal-install.cabal
index 7661a01e35088cdd0bab4dbcc7e0eb168603c37a..2573810bb42190ff34e4d017cd3029eed89c762a 100644
--- a/cabal-install/cabal-install.cabal
+++ b/cabal-install/cabal-install.cabal
@@ -80,6 +80,12 @@ Extra-Source-Files:
tests/IntegrationTests/custom/segfault/plain.cabal
tests/IntegrationTests/exec/Foo.hs
tests/IntegrationTests/exec/My.hs
+ tests/IntegrationTests/exec/T4049.sh
+ tests/IntegrationTests/exec/T4049/UseLib.c
+ tests/IntegrationTests/exec/T4049/csrc/MyForeignLibWrapper.c
+ tests/IntegrationTests/exec/T4049/my-foreign-lib.cabal
+ tests/IntegrationTests/exec/T4049/src/MyForeignLib/Hello.hs
+ tests/IntegrationTests/exec/T4049/src/MyForeignLib/SomeBindings.hsc
tests/IntegrationTests/exec/adds_sandbox_bin_directory_to_path.out
tests/IntegrationTests/exec/adds_sandbox_bin_directory_to_path.sh
tests/IntegrationTests/exec/auto_configures_on_exec.out
diff --git a/cabal-install/tests/IntegrationTests.hs b/cabal-install/tests/IntegrationTests.hs
index 15489ec455910d20b35736476b091a6a9facfc03..28161c14c18931cdb60f6c90826ee8739f5e7cec 100644
--- a/cabal-install/tests/IntegrationTests.hs
+++ b/cabal-install/tests/IntegrationTests.hs
@@ -12,9 +12,9 @@ import Distribution.Compat.CreatePipe (createPipe)
import Distribution.Compat.Environment (setEnv, getEnvironment)
import Distribution.Compat.Internal.TempFile (createTempDirectory)
import Distribution.Simple.Configure (findDistPrefOrDefault)
-import Distribution.Simple.Program.Builtin (ghcPkgProgram)
+import Distribution.Simple.Program.Builtin (ghcPkgProgram, gccProgram, ghcProgram)
import Distribution.Simple.Program.Db
- (defaultProgramDb, requireProgram, setProgramSearchPath)
+ (defaultProgramDb, requireProgram, setProgramSearchPath, lookupProgramVersion)
import Distribution.Simple.Program.Find
(ProgramSearchPathEntry(ProgramSearchPathDir), defaultProgramSearchPath)
import Distribution.Simple.Program.Types
@@ -22,6 +22,7 @@ import Distribution.Simple.Program.Types
import Distribution.Simple.Setup ( Flag(..) )
import Distribution.Simple.Utils ( findProgramVersion, copyDirectoryRecursive, installOrdinaryFile )
import Distribution.Verbosity (normal)
+import Distribution.Version (anyVersion)
-- Third party modules.
import Control.Concurrent.Async (withAsync, wait)
@@ -294,6 +295,15 @@ main = do
setEnv "CABAL_ARGS_NO_CONFIG_FILE" " "
-- Don't get Unicode output from GHC
setEnv "LC_ALL" "C"
+ -- Try to find something that can compile C programs
+ findGcc <- lookupProgramVersion normal gccProgram anyVersion defaultProgramDb
+ case findGcc of
+ Left _ -> do
+ -- set CC to GHC blabla
+ (ghc, _) <- requireProgram normal ghcProgram defaultProgramDb
+ setEnv "CCOMP" $ programPath ghc ++ " -no-hs-main"
+ Right (gcc, _, _) -> do
+ setEnv "CCOMP" (programPath gcc)
-- Discover all the test categories
categories <- discoverTestCategories baseDirectory
-- Discover tests in each category
diff --git a/cabal-install/tests/IntegrationTests/exec/T4049.sh b/cabal-install/tests/IntegrationTests/exec/T4049.sh
new file mode 100644
index 0000000000000000000000000000000000000000..8bb30d3773b0bc2e012687b16d9ca3c1fbefd31a
--- /dev/null
+++ b/cabal-install/tests/IntegrationTests/exec/T4049.sh
@@ -0,0 +1,9 @@
+. ./common.sh
+
+require_ghc_ge 708
+
+cd T4049
+cabal sandbox init > /dev/null
+cabal install --enable-shared > /dev/null
+sh -c "$CCOMP UseLib.c -o UseLib -l myforeignlib -L \"$PWD/.cabal-sandbox/lib\" > /dev/null"
+cabal exec "$PWD/UseLib"
diff --git a/cabal-install/tests/IntegrationTests/exec/T4049/UseLib.c b/cabal-install/tests/IntegrationTests/exec/T4049/UseLib.c
new file mode 100644
index 0000000000000000000000000000000000000000..65770da6380d58a2580b85c0c59a6db50d8f9513
--- /dev/null
+++ b/cabal-install/tests/IntegrationTests/exec/T4049/UseLib.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main()
+{
+ myForeignLibInit();
+ sayHi();
+ myForeignLibExit();
+ return 0;
+}
diff --git a/cabal-install/tests/IntegrationTests/exec/T4049/csrc/MyForeignLibWrapper.c b/cabal-install/tests/IntegrationTests/exec/T4049/csrc/MyForeignLibWrapper.c
new file mode 100644
index 0000000000000000000000000000000000000000..2660c6a335ef444a65436bd259f192a29d843d8e
--- /dev/null
+++ b/cabal-install/tests/IntegrationTests/exec/T4049/csrc/MyForeignLibWrapper.c
@@ -0,0 +1,23 @@
+#include <stdlib.h>
+#include "HsFFI.h"
+
+HsBool myForeignLibInit(void){
+ int argc = 2;
+ char *argv[] = { "+RTS", "-A32m", NULL };
+ char **pargv = argv;
+
+ // Initialize Haskell runtime
+ hs_init(&argc, &pargv);
+
+ // do any other initialization here and
+ // return false if there was a problem
+ return HS_BOOL_TRUE;
+}
+
+void myForeignLibExit(void){
+ hs_exit();
+}
+
+int cFoo2() {
+ return 1234;
+}
diff --git a/cabal-install/tests/IntegrationTests/exec/T4049/my-foreign-lib.cabal b/cabal-install/tests/IntegrationTests/exec/T4049/my-foreign-lib.cabal
new file mode 100644
index 0000000000000000000000000000000000000000..05ab5eef604a82079222fd6987389a6b06ced2c1
--- /dev/null
+++ b/cabal-install/tests/IntegrationTests/exec/T4049/my-foreign-lib.cabal
@@ -0,0 +1,19 @@
+name: my-foreign-lib
+version: 0.1.0.0
+author: Edsko de Vries
+maintainer: edsko@well-typed.com
+build-type: Simple
+cabal-version: >=1.10
+
+foreign-library myforeignlib
+ type: native-shared
+
+ if os(windows)
+ options: standalone
+
+ other-modules: MyForeignLib.Hello
+ MyForeignLib.SomeBindings
+ build-depends: base
+ hs-source-dirs: src
+ c-sources: csrc/MyForeignLibWrapper.c
+ default-language: Haskell2010
diff --git a/cabal-install/tests/IntegrationTests/exec/T4049/src/MyForeignLib/Hello.hs b/cabal-install/tests/IntegrationTests/exec/T4049/src/MyForeignLib/Hello.hs
new file mode 100644
index 0000000000000000000000000000000000000000..cc6b20ecb0cbc5afa6e45cf553754b1adaad6c00
--- /dev/null
+++ b/cabal-install/tests/IntegrationTests/exec/T4049/src/MyForeignLib/Hello.hs
@@ -0,0 +1,10 @@
+-- | Module with single foreign export
+module MyForeignLib.Hello (sayHi) where
+
+import MyForeignLib.SomeBindings
+
+foreign export ccall sayHi :: IO ()
+
+-- | Say hi!
+sayHi :: IO ()
+sayHi = putStrLn $ "Hi from a foreign library! Foo has value " ++ show valueOfFoo
diff --git a/cabal-install/tests/IntegrationTests/exec/T4049/src/MyForeignLib/SomeBindings.hsc b/cabal-install/tests/IntegrationTests/exec/T4049/src/MyForeignLib/SomeBindings.hsc
new file mode 100644
index 0000000000000000000000000000000000000000..beea7f8c49c98882dcc6c8ea798a70edf715572c
--- /dev/null
+++ b/cabal-install/tests/IntegrationTests/exec/T4049/src/MyForeignLib/SomeBindings.hsc
@@ -0,0 +1,10 @@
+-- | Module that needs the hsc2hs preprocessor
+module MyForeignLib.SomeBindings where
+
+#define FOO 1
+
+#ifdef FOO
+-- | Value guarded by a CPP flag
+valueOfFoo :: Int
+valueOfFoo = 5678
+#endif