Add a test for #3199.

cabal-install/tests/IntegrationTests/regression/common.sh

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+# Helper to run Cabal
+cabal() {
+    "$CABAL" $CABAL_ARGS "$@"
+}
+
+die() {
+    echo "die: $@"
+    exit 1
+}

cabal-install/tests/IntegrationTests/regression/t3199.sh

@@ -0,0 +1,8 @@
+. ./common.sh
+
+GHC_VERSION=`ghc --numeric-version`
+
+if [[ $GHC_VERSION < "8" ]]; then
+    cd t3199
+    cabal configure
+fi

cabal-install/tests/IntegrationTests/regression/t3199/ChangeLog.md

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+# Revision history for logop
+
+## 0.1.0.0  -- YYYY-mm-dd
+
+* First version. Released on an unsuspecting world.

cabal-install/tests/IntegrationTests/regression/t3199/LICENSE

@@ -0,0 +1,30 @@
+Copyright (c) 2016, Mikhail Glushenkov
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Mikhail Glushenkov nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cabal-install/tests/IntegrationTests/regression/t3199/Main.hs

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+module Main where
+
+main :: IO ()
+main = putStrLn "Hello, Haskell!"

cabal-install/tests/IntegrationTests/regression/t3199/Setup.hs

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+import Distribution.Simple
+main = defaultMain

cabal-install/tests/IntegrationTests/regression/t3199/test-3199.cabal

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+name:                test-t3199
+version:             0.1.0.0
+license:             BSD3
+license-file:        LICENSE
+author:              Mikhail Glushenkov
+maintainer:          [email protected]
+category:            Test
+build-type:          Custom
+extra-source-files:  ChangeLog.md
+cabal-version:       >=1.10
+
+flag exe_2
+     description: Build second exe
+     default:     False
+
+executable test-3199-1
+  main-is:             Main.hs
+  build-depends:       base
+  default-language:    Haskell2010
+
+executable test-3199-2
+  main-is:             Main.hs
+  build-depends:       base, ansi-terminal
+  default-language:    Haskell2010
+
+  if flag(exe_2)
+     buildable: True
+  else
+     buildable: False