Add test

cabal-testsuite/PackageTests/CCompilerOverride/Main.hs

@@ -0,0 +1,13 @@
+{-# LANGUAGE ForeignFunctionInterface #-}
+
+module Main (main) where
+
+foreign import ccall "foo" foo :: Int -> Int
+
+main :: IO ()
+main = do
+  let x = foo 0
+      y = x
+  let x = y
+  print x
+  pure ()

cabal-testsuite/PackageTests/CCompilerOverride/custom-cc

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if which cc >/dev/null 2>&1; then
+    cc -DNOERROR6 "${@}"
+elif which gcc >/dev/null 2>&1; then
+    gcc -DNOERROR6 "${@}"
+elif which clang >/dev/null 2>&1; then
+    clang -DNOERROR6 "${@}"
+else
+    echo "Cannot find C compiler" >&2
+    exit 1
+fi
+

cabal-testsuite/PackageTests/CCompilerOverride/custom-cc.bat

@@ -0,0 +1,11 @@
+@echo OFF
+
+where /q gcc.exe
+
+IF %ERRORLEVEL% EQU 0 (
+   call gcc.exe -DNOERROR6 %*
+   EXIT /B %ERRORLEVEL%
+)
+
+ECHO "Cannot find C compiler"
+EXIT /B 1

cabal-testsuite/PackageTests/CCompilerOverride/foo.c

@@ -0,0 +1,28 @@
+
+#ifndef NOERROR1
+#error "NOERROR1 was not passed"
+#endif
+
+#ifndef NOERROR2
+#error "NOERROR2 was not passed"
+#endif
+
+#ifndef NOERROR3
+#error "NOERROR3 was not passed"
+#endif
+
+#ifndef NOERROR4
+#error "NOERROR4 was not passed"
+#endif
+
+#ifndef NOERROR5
+#error "NOERROR5 was not passed"
+#endif
+
+#ifndef NOERROR6
+#error "NOERROR6 was not passed"
+#endif
+
+int foo(int x) {
+    return x + 42;
+}

cabal-testsuite/PackageTests/CCompilerOverride/my.cabal

@@ -0,0 +1,13 @@
+name:           my
+version:        0.1
+license:        BSD3
+cabal-version:  >= 1.10
+build-type:     Simple
+
+executable foo
+    default-language: Haskell2010
+    main-is:          Main.hs
+    c-sources:        foo.c
+    build-depends:    base
+    ghc-options:      -DNOERROR4
+    cc-options:       -DNOERROR5 -march=native

cabal-testsuite/PackageTests/CCompilerOverride/setup.cabal.out

@@ -0,0 +1,4 @@
+# Setup configure
+Configuring my-0.1...
+Warning: Instead of 'ghc-options: -DNOERROR4' use 'cpp-options: -DNOERROR4'
+# Setup build

cabal-testsuite/PackageTests/CCompilerOverride/setup.out

@@ -0,0 +1,4 @@
+# Setup configure
+Configuring my-0.1...
+Warning: Instead of 'ghc-options: -DNOERROR4' use 'cpp-options: -DNOERROR4'
+# Setup build

cabal-testsuite/PackageTests/CCompilerOverride/setup.test.hs

@@ -0,0 +1,18 @@
+import Test.Cabal.Prelude
+
+-- Test that all the respective defines -DNOERROR... specified in variosu ways
+-- all end up routed to the C compiler. Otherwise the C file we depend on will
+-- not compile.
+main = setupAndCabalTest $ do
+  isWin <- isWindows
+  env   <- getTestEnv
+  let pwd      = testCurrentDir env
+      customCC = pwd ++ "/custom-cc" ++ if isWin then ".bat" else ""
+
+  setup "configure"
+    [ "--ghc-option=-DNOERROR1"
+    , "--ghc-option=-optc=-DNOERROR2"
+    , "--ghc-option=-optP=-DNOERROR3"
+    , "--with-gcc=" ++ customCC
+    ]
+  setup "build" ["-v2"]