Merge topic 'ghs-linux'

2c43fb5be3 FindThreads: Fix pthread library check in GHS Multi Generator
0404efe786 GHS: Add support for GHS Multi Generator in Linux
2060a1445c Tests: Fix file name case in GHS object library test
ddad70c8a4 Tests: Run GHS tests in a separate ctest process
f7dca1fc97 GHS: Fix include-what-you-use and clang-tidy diagnostics

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3006

10 files changed, 137 insertions, 82 deletions

diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index 596c7f5..52f6742 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -729,14 +729,6 @@ if (WIN32)
       cmVisualStudioSlnParser.cxx
       cmVisualStudioWCEPlatformParser.h
       cmVisualStudioWCEPlatformParser.cxx
-      cmGlobalGhsMultiGenerator.cxx
-      cmGlobalGhsMultiGenerator.h
-      cmLocalGhsMultiGenerator.cxx
-      cmLocalGhsMultiGenerator.h
-      cmGhsMultiTargetGenerator.cxx
-      cmGhsMultiTargetGenerator.h
-      cmGhsMultiGpj.cxx
-      cmGhsMultiGpj.h
       cmVSSetupHelper.cxx
       cmVSSetupHelper.h
       )
@@ -756,6 +748,22 @@ if(WIN32 OR CMAKE_SYSTEM_NAME STREQUAL "Linux")
     )
 endif()
 
+# GHS support
+# Works only for windows and linux
+if(WIN32 OR CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  set(SRCS ${SRCS}
+      cmGlobalGhsMultiGenerator.cxx
+      cmGlobalGhsMultiGenerator.h
+      cmLocalGhsMultiGenerator.cxx
+      cmLocalGhsMultiGenerator.h
+      cmGhsMultiTargetGenerator.cxx
+      cmGhsMultiTargetGenerator.h
+      cmGhsMultiGpj.cxx
+      cmGhsMultiGpj.h
+    )
+endif()
+
+
 # Ninja support
 set(SRCS ${SRCS}
   cmGlobalNinjaGenerator.cxx
diff --git a/Source/cmGhsMultiGpj.cxx b/Source/cmGhsMultiGpj.cxx
index c1f0742..8b69b51 100644
--- a/Source/cmGhsMultiGpj.cxx
+++ b/Source/cmGhsMultiGpj.cxx
@@ -2,7 +2,7 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmGhsMultiGpj.h"
 
-#include "cmGeneratedFileStream.h"
+#include <ostream>
 
 static const char* GHS_TAG[] = { "[INTEGRITY Application]",
                                  "[Library]",
@@ -11,7 +11,7 @@ static const char* GHS_TAG[] = { "[INTEGRITY Application]",
                                  "[Reference]",
                                  "[Subproject]" };
 
-const char* GhsMultiGpj::GetGpjTag(Types const gpjType)
+const char* GhsMultiGpj::GetGpjTag(Types gpjType)
 {
   char const* tag;
   switch (gpjType) {
@@ -29,7 +29,7 @@ const char* GhsMultiGpj::GetGpjTag(Types const gpjType)
   return tag;
 }
 
-void GhsMultiGpj::WriteGpjTag(Types const gpjType, std::ostream& fout)
+void GhsMultiGpj::WriteGpjTag(Types gpjType, std::ostream& fout)
 {
   char const* tag;
   tag = GhsMultiGpj::GetGpjTag(gpjType);
diff --git a/Source/cmGhsMultiGpj.h b/Source/cmGhsMultiGpj.h
index 6d59225..420eab1 100644
--- a/Source/cmGhsMultiGpj.h
+++ b/Source/cmGhsMultiGpj.h
@@ -6,8 +6,6 @@
 #include "cmConfigure.h" // IWYU pragma: keep
 #include <iosfwd>
 
-class cmGeneratedFileStream;
-
 class GhsMultiGpj
 {
 public:
@@ -21,9 +19,9 @@ public:
     SUBPROJECT
   };
 
-  static void WriteGpjTag(Types const gpjType, std::ostream& fout);
+  static void WriteGpjTag(Types gpjType, std::ostream& fout);
 
-  static const char* GetGpjTag(Types const gpjType);
+  static const char* GetGpjTag(Types gpjType);
 };
 
 #endif // ! cmGhsMultiGpjType_h
diff --git a/Source/cmGhsMultiTargetGenerator.cxx b/Source/cmGhsMultiTargetGenerator.cxx
index c73ec70..668bcbd 100644
--- a/Source/cmGhsMultiTargetGenerator.cxx
+++ b/Source/cmGhsMultiTargetGenerator.cxx
@@ -2,16 +2,29 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmGhsMultiTargetGenerator.h"
 
-#include "cmComputeLinkInformation.h"
+#include "cmCustomCommand.h"
+#include "cmCustomCommandLines.h"
 #include "cmGeneratedFileStream.h"
 #include "cmGeneratorTarget.h"
 #include "cmGlobalGhsMultiGenerator.h"
 #include "cmLinkLineComputer.h"
+#include "cmLocalGenerator.h"
 #include "cmLocalGhsMultiGenerator.h"
 #include "cmMakefile.h"
 #include "cmSourceFile.h"
 #include "cmSourceGroup.h"
+#include "cmStateDirectory.h"
+#include "cmStateSnapshot.h"
+#include "cmStateTypes.h"
+#include "cmSystemTools.h"
 #include "cmTarget.h"
+#include "cmTargetDepend.h"
+
+#include <algorithm>
+#include <assert.h>
+#include <ostream>
+#include <set>
+#include <utility>
 
 cmGhsMultiTargetGenerator::cmGhsMultiTargetGenerator(cmGeneratorTarget* target)
   : GeneratorTarget(target)
@@ -30,9 +43,7 @@ cmGhsMultiTargetGenerator::cmGhsMultiTargetGenerator(cmGeneratorTarget* target)
   }
 }
 
-cmGhsMultiTargetGenerator::~cmGhsMultiTargetGenerator()
-{
-}
+cmGhsMultiTargetGenerator::~cmGhsMultiTargetGenerator() = default;
 
 void cmGhsMultiTargetGenerator::Generate()
 {
@@ -99,7 +110,7 @@ void cmGhsMultiTargetGenerator::GenerateTarget()
   fname += "/";
   fname += this->Name;
   fname += cmGlobalGhsMultiGenerator::FILE_EXTENSION;
-  cmGeneratedFileStream fout(fname.c_str());
+  cmGeneratedFileStream fout(fname);
   fout.SetCopyIfDifferent(true);
 
   this->GetGlobalGenerator()->WriteFileHeader(fout);
@@ -336,10 +347,9 @@ void cmGhsMultiTargetGenerator::WriteCustomCommandsHelper(
   }
 }
 
-void cmGhsMultiTargetGenerator::WriteSourceProperty(std::ostream& fout,
-                                                    const cmSourceFile* sf,
-                                                    std::string propName,
-                                                    std::string propFlag)
+void cmGhsMultiTargetGenerator::WriteSourceProperty(
+  std::ostream& fout, const cmSourceFile* sf, std::string const& propName,
+  std::string const& propFlag)
 {
   const char* prop = sf->GetProperty(propName);
   if (prop) {
@@ -370,7 +380,7 @@ void cmGhsMultiTargetGenerator::WriteSources(std::ostream& fout_proj)
       this->Makefile->FindSourceGroup(sf->GetFullPath(), sourceGroups);
     std::string gn = sourceGroup->GetFullName();
     groupFiles[gn].push_back(sf);
-    groupNames.insert(gn);
+    groupNames.insert(std::move(gn));
   }
 
   /* list of known groups and the order they are displayed in a project file */
@@ -397,7 +407,7 @@ void cmGhsMultiTargetGenerator::WriteSources(std::ostream& fout_proj)
   }
 
   { /* catch-all group - is last item */
-    std::string gn = "";
+    std::string gn;
     auto n = groupNames.find(gn);
     if (n != groupNames.end()) {
       groupFilesList.back() = *n;
@@ -446,7 +456,7 @@ void cmGhsMultiTargetGenerator::WriteSources(std::ostream& fout_proj)
       std::string fpath = this->LocalGenerator->GetCurrentBinaryDirectory();
       fpath += "/";
       fpath += lpath;
-      cmGeneratedFileStream* f = new cmGeneratedFileStream(fpath.c_str());
+      cmGeneratedFileStream* f = new cmGeneratedFileStream(fpath);
       f->SetCopyIfDifferent(true);
       gfiles.push_back(f);
       fout = f;
@@ -476,7 +486,7 @@ void cmGhsMultiTargetGenerator::WriteSources(std::ostream& fout_proj)
 
       if ("ld" != si->GetExtension() && "int" != si->GetExtension() &&
           "bsp" != si->GetExtension()) {
-        this->WriteObjectLangOverride(*fout, si);
+        WriteObjectLangOverride(*fout, si);
       }
 
       this->WriteSourceProperty(*fout, si, "INCLUDE_DIRECTORIES", "-I");
@@ -502,9 +512,9 @@ void cmGhsMultiTargetGenerator::WriteObjectLangOverride(
   std::ostream& fout, const cmSourceFile* sourceFile)
 {
   const char* rawLangProp = sourceFile->GetProperty("LANGUAGE");
-  if (NULL != rawLangProp) {
+  if (nullptr != rawLangProp) {
     std::string sourceLangProp(rawLangProp);
-    std::string extension(sourceFile->GetExtension());
+    std::string const& extension = sourceFile->GetExtension();
     if ("CXX" == sourceLangProp && ("c" == extension || "C" == extension)) {
       fout << "    -dotciscxx" << std::endl;
     }
@@ -540,20 +550,19 @@ void cmGhsMultiTargetGenerator::WriteReferences(std::ostream& fout)
   }
 }
 
-bool cmGhsMultiTargetGenerator::DetermineIfIntegrityApp(void)
+bool cmGhsMultiTargetGenerator::DetermineIfIntegrityApp()
 {
   const char* p = this->GeneratorTarget->GetProperty("ghs_integrity_app");
   if (p) {
     return cmSystemTools::IsOn(
       this->GeneratorTarget->GetProperty("ghs_integrity_app"));
-  } else {
-    std::vector<cmSourceFile*> sources;
-    this->GeneratorTarget->GetSourceFiles(sources, this->ConfigName);
-    for (auto& sf : sources) {
-      if ("int" == sf->GetExtension()) {
-        return true;
-      }
+  }
+  std::vector<cmSourceFile*> sources;
+  this->GeneratorTarget->GetSourceFiles(sources, this->ConfigName);
+  for (auto& sf : sources) {
+    if ("int" == sf->GetExtension()) {
+      return true;
     }
-    return false;
   }
+  return false;
 }
diff --git a/Source/cmGhsMultiTargetGenerator.h b/Source/cmGhsMultiTargetGenerator.h
index a241cc6..a4e23d9 100644
--- a/Source/cmGhsMultiTargetGenerator.h
+++ b/Source/cmGhsMultiTargetGenerator.h
@@ -7,8 +7,12 @@
 
 #include "cmTarget.h"
 
+#include <iosfwd>
+#include <map>
+#include <string>
+#include <vector>
+
 class cmCustomCommand;
-class cmGeneratedFileStream;
 class cmGeneratorTarget;
 class cmGlobalGhsMultiGenerator;
 class cmLocalGhsMultiGenerator;
@@ -51,12 +55,13 @@ private:
     cmTarget::CustomCommandType commandType);
   void WriteSources(std::ostream& fout_proj);
   void WriteSourceProperty(std::ostream& fout, const cmSourceFile* sf,
-                           std::string propName, std::string propFlag);
+                           std::string const& propName,
+                           std::string const& propFlag);
   void WriteReferences(std::ostream& fout);
   static void WriteObjectLangOverride(std::ostream& fout,
                                       const cmSourceFile* sourceFile);
 
-  bool DetermineIfIntegrityApp(void);
+  bool DetermineIfIntegrityApp();
   cmGeneratorTarget* GeneratorTarget;
   cmLocalGhsMultiGenerator* LocalGenerator;
   cmMakefile* Makefile;
diff --git a/Source/cmGlobalGhsMultiGenerator.cxx b/Source/cmGlobalGhsMultiGenerator.cxx
index dba9afa..e6a1d78 100644
--- a/Source/cmGlobalGhsMultiGenerator.cxx
+++ b/Source/cmGlobalGhsMultiGenerator.cxx
@@ -2,22 +2,33 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmGlobalGhsMultiGenerator.h"
 
-#include "cmsys/SystemTools.hxx"
-
-#include "cmAlgorithms.h"
 #include "cmDocumentationEntry.h"
 #include "cmGeneratedFileStream.h"
 #include "cmGeneratorTarget.h"
-#include "cmGhsMultiTargetGenerator.h"
+#include "cmGhsMultiGpj.h"
+#include "cmLocalGenerator.h"
 #include "cmLocalGhsMultiGenerator.h"
 #include "cmMakefile.h"
 #include "cmState.h"
+#include "cmStateTypes.h"
+#include "cmSystemTools.h"
 #include "cmVersion.h"
 #include "cmake.h"
 
+#include <algorithm>
+#include <map>
+#include <ostream>
+#include <string.h>
+#include <utility>
+
 const char* cmGlobalGhsMultiGenerator::FILE_EXTENSION = ".gpj";
+#ifdef __linux__
+const char* cmGlobalGhsMultiGenerator::DEFAULT_BUILD_PROGRAM = "gbuild";
+const char* cmGlobalGhsMultiGenerator::DEFAULT_TOOLSET_ROOT = "/usr/ghs";
+#elif defined(_WIN32)
 const char* cmGlobalGhsMultiGenerator::DEFAULT_BUILD_PROGRAM = "gbuild.exe";
 const char* cmGlobalGhsMultiGenerator::DEFAULT_TOOLSET_ROOT = "C:/ghs";
+#endif
 
 cmGlobalGhsMultiGenerator::cmGlobalGhsMultiGenerator(cmake* cm)
   : cmGlobalGenerator(cm)
@@ -25,9 +36,7 @@ cmGlobalGhsMultiGenerator::cmGlobalGhsMultiGenerator(cmake* cm)
   cm->GetState()->SetGhsMultiIDE(true);
 }
 
-cmGlobalGhsMultiGenerator::~cmGlobalGhsMultiGenerator()
-{
-}
+cmGlobalGhsMultiGenerator::~cmGlobalGhsMultiGenerator() = default;
 
 cmLocalGenerator* cmGlobalGhsMultiGenerator::CreateLocalGenerator(
   cmMakefile* mf)
@@ -64,7 +73,8 @@ bool cmGlobalGhsMultiGenerator::SetGeneratorToolset(std::string const& ts,
   /* no toolset was found */
   if (tsp.empty()) {
     return false;
-  } else if (ts.empty()) {
+  }
+  if (ts.empty()) {
     std::string message;
     message =
       "Green Hills MULTI: -T <toolset> not specified; defaulting to \"";
@@ -86,7 +96,7 @@ bool cmGlobalGhsMultiGenerator::SetGeneratorToolset(std::string const& ts,
   const char* prevTool = mf->GetDefinition("CMAKE_MAKE_PROGRAM");
 
   /* check if the toolset changed from last generate */
-  if (prevTool != NULL && (gbuild != prevTool)) {
+  if (prevTool != nullptr && (gbuild != prevTool)) {
     std::string message = "toolset build tool: ";
     message += gbuild;
     message += "\nDoes not match the previously used build tool: ";
@@ -95,13 +105,12 @@ bool cmGlobalGhsMultiGenerator::SetGeneratorToolset(std::string const& ts,
                "directory or choose a different binary directory.";
     cmSystemTools::Error(message);
     return false;
-  } else {
-    /* store the toolset that is being used for this build */
-    mf->AddCacheDefinition("CMAKE_MAKE_PROGRAM", gbuild.c_str(),
-                           "build program to use", cmStateEnums::INTERNAL,
-                           true);
   }
 
+  /* store the toolset that is being used for this build */
+  mf->AddCacheDefinition("CMAKE_MAKE_PROGRAM", gbuild.c_str(),
+                         "build program to use", cmStateEnums::INTERNAL, true);
+
   mf->AddDefinition("CMAKE_SYSTEM_VERSION", tsp.c_str());
 
   return true;
@@ -110,7 +119,7 @@ bool cmGlobalGhsMultiGenerator::SetGeneratorToolset(std::string const& ts,
 bool cmGlobalGhsMultiGenerator::SetGeneratorPlatform(std::string const& p,
                                                      cmMakefile* mf)
 {
-  if (p == "") {
+  if (p.empty()) {
     cmSystemTools::Message(
       "Green Hills MULTI: -A <arch> not specified; defaulting to \"arm\"");
     std::string arch = "arm";
@@ -201,7 +210,7 @@ void cmGlobalGhsMultiGenerator::WriteFileHeader(std::ostream& fout)
   fout << "#!gbuild" << std::endl;
   fout << "#" << std::endl
        << "# CMAKE generated file: DO NOT EDIT!" << std::endl
-       << "# Generated by \"" << this->GetActualName() << "\""
+       << "# Generated by \"" << GetActualName() << "\""
        << " Generator, CMake Version " << cmVersion::GetMajorVersion() << "."
        << cmVersion::GetMinorVersion() << std::endl
        << "#" << std::endl
@@ -296,7 +305,7 @@ void cmGlobalGhsMultiGenerator::WriteSubProjects(
     if (projName && projType) {
       cmLocalGenerator* lg = target->GetLocalGenerator();
       std::string dir = lg->GetCurrentBinaryDirectory();
-      dir = root->MaybeConvertToRelativePath(rootBinaryDir, dir.c_str());
+      dir = root->MaybeConvertToRelativePath(rootBinaryDir, dir);
       if (dir == ".") {
         dir.clear();
       } else {
@@ -319,7 +328,7 @@ void cmGlobalGhsMultiGenerator::WriteSubProjects(
         fname += "REF";
         fname += FILE_EXTENSION;
 
-        cmGeneratedFileStream fref(fname.c_str());
+        cmGeneratedFileStream fref(fname);
         fref.SetCopyIfDifferent(true);
 
         this->WriteFileHeader(fref);
@@ -360,7 +369,7 @@ void cmGlobalGhsMultiGenerator::OutputTopLevelProject(
   fname += ".top";
   fname += FILE_EXTENSION;
 
-  cmGeneratedFileStream fout(fname.c_str());
+  cmGeneratedFileStream fout(fname);
   fout.SetCopyIfDifferent(true);
 
   this->WriteTopLevelProject(fout, root, generators);
@@ -376,9 +385,12 @@ cmGlobalGhsMultiGenerator::GenerateBuildCommand(
   std::vector<std::string> const& makeOptions)
 {
   GeneratedMakeCommand makeCommand = {};
-  const char* gbuild =
-    this->CMakeInstance->GetCacheDefinition("CMAKE_MAKE_PROGRAM");
-  makeCommand.Add(this->SelectMakeProgram(makeProgram, (std::string)gbuild));
+  std::string gbuild;
+  if (const char* gbuildCached =
+        this->CMakeInstance->GetCacheDefinition("CMAKE_MAKE_PROGRAM")) {
+    gbuild = gbuildCached;
+  }
+  makeCommand.Add(this->SelectMakeProgram(makeProgram, gbuild));
 
   if (jobs != cmake::NO_BUILD_PARALLEL_LEVEL) {
     makeCommand.Add("-parallel");
@@ -424,7 +436,7 @@ void cmGlobalGhsMultiGenerator::WriteMacros(std::ostream& fout)
 {
   char const* ghsGpjMacros =
     this->GetCMakeInstance()->GetCacheDefinition("GHS_GPJ_MACROS");
-  if (NULL != ghsGpjMacros) {
+  if (nullptr != ghsGpjMacros) {
     std::vector<std::string> expandedList;
     cmSystemTools::ExpandListArgument(std::string(ghsGpjMacros), expandedList);
     for (std::string const& arg : expandedList) {
@@ -457,7 +469,7 @@ void cmGlobalGhsMultiGenerator::WriteHighLevelDirectives(std::ostream& fout)
 
   char const* const customization =
     this->GetCMakeInstance()->GetCacheDefinition("GHS_CUSTOMIZATION");
-  if (NULL != customization && strlen(customization) > 0) {
+  if (nullptr != customization && strlen(customization) > 0) {
     fout << "customization=" << trimQuotes(customization) << std::endl;
     this->GetCMakeInstance()->MarkCliAsUsed("GHS_CUSTOMIZATION");
   }
diff --git a/Source/cmGlobalGhsMultiGenerator.h b/Source/cmGlobalGhsMultiGenerator.h
index c39f40f..f8df6ef 100644
--- a/Source/cmGlobalGhsMultiGenerator.h
+++ b/Source/cmGlobalGhsMultiGenerator.h
@@ -5,10 +5,20 @@
 
 #include "cmGlobalGenerator.h"
 
-#include "cmGhsMultiGpj.h"
 #include "cmGlobalGeneratorFactory.h"
+#include "cmTargetDepend.h"
 
-class cmGeneratedFileStream;
+#include <iosfwd>
+#include <set>
+#include <string>
+#include <utility>
+#include <vector>
+
+class cmGeneratorTarget;
+class cmLocalGenerator;
+class cmMakefile;
+class cmake;
+struct cmDocumentationEntry;
 
 class cmGlobalGhsMultiGenerator : public cmGlobalGenerator
 {
@@ -17,7 +27,7 @@ public:
   static const char* FILE_EXTENSION;
 
   cmGlobalGhsMultiGenerator(cmake* cm);
-  ~cmGlobalGhsMultiGenerator();
+  ~cmGlobalGhsMultiGenerator() override;
 
   static cmGlobalGeneratorFactory* NewFactory()
   {
@@ -31,7 +41,7 @@ public:
   static std::string GetActualName() { return "Green Hills MULTI"; }
 
   ///! Get the name for this generator
-  std::string GetName() const override { return this->GetActualName(); }
+  std::string GetName() const override { return GetActualName(); }
 
   /// Overloaded methods. @see cmGlobalGenerator::GetDocumentation()
   static void GetDocumentation(cmDocumentationEntry& entry);
@@ -77,8 +87,8 @@ public:
     std::string First;
 
   public:
-    TargetCompare(std::string const& first)
-      : First(first)
+    TargetCompare(std::string first)
+      : First(std::move(first))
     {
     }
     bool operator()(cmGeneratorTarget const* l,
diff --git a/Source/cmLocalGhsMultiGenerator.cxx b/Source/cmLocalGhsMultiGenerator.cxx
index 125e8b5..bf25f98 100644
--- a/Source/cmLocalGhsMultiGenerator.cxx
+++ b/Source/cmLocalGhsMultiGenerator.cxx
@@ -2,12 +2,15 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmLocalGhsMultiGenerator.h"
 
-#include "cmGeneratedFileStream.h"
 #include "cmGeneratorTarget.h"
 #include "cmGhsMultiTargetGenerator.h"
-#include "cmGlobalGhsMultiGenerator.h"
-#include "cmMakefile.h"
+#include "cmGlobalGenerator.h"
 #include "cmSourceFile.h"
+#include "cmStateTypes.h"
+#include "cmSystemTools.h"
+
+#include <algorithm>
+#include <utility>
 
 cmLocalGhsMultiGenerator::cmLocalGhsMultiGenerator(cmGlobalGenerator* gg,
                                                    cmMakefile* mf)
@@ -15,9 +18,7 @@ cmLocalGhsMultiGenerator::cmLocalGhsMultiGenerator(cmGlobalGenerator* gg,
 {
 }
 
-cmLocalGhsMultiGenerator::~cmLocalGhsMultiGenerator()
-{
-}
+cmLocalGhsMultiGenerator::~cmLocalGhsMultiGenerator() = default;
 
 std::string cmLocalGhsMultiGenerator::GetTargetDirectory(
   cmGeneratorTarget const* target) const
diff --git a/Source/cmLocalGhsMultiGenerator.h b/Source/cmLocalGhsMultiGenerator.h
index 2584fd3..b6ccd08 100644
--- a/Source/cmLocalGhsMultiGenerator.h
+++ b/Source/cmLocalGhsMultiGenerator.h
@@ -5,7 +5,14 @@
 
 #include "cmLocalGenerator.h"
 
-class cmGeneratedFileStream;
+#include <map>
+#include <string>
+#include <vector>
+
+class cmGeneratorTarget;
+class cmGlobalGenerator;
+class cmMakefile;
+class cmSourceFile;
 
 /** \class cmLocalGhsMultiGenerator
  * \brief Write Green Hills MULTI project files.
@@ -18,7 +25,7 @@ class cmLocalGhsMultiGenerator : public cmLocalGenerator
 public:
   cmLocalGhsMultiGenerator(cmGlobalGenerator* gg, cmMakefile* mf);
 
-  virtual ~cmLocalGhsMultiGenerator();
+  ~cmLocalGhsMultiGenerator() override;
 
   /**
    * Generate the makefile for this directory.
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index e1b775e..8c1a359 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -48,7 +48,6 @@
 #if defined(_WIN32) && !defined(__CYGWIN__)
 #  if !defined(CMAKE_BOOT_MINGW)
 #    include "cmGlobalBorlandMakefileGenerator.h"
-#    include "cmGlobalGhsMultiGenerator.h"
 #    include "cmGlobalJOMMakefileGenerator.h"
 #    include "cmGlobalNMakeMakefileGenerator.h"
 #    include "cmGlobalVisualStudio10Generator.h"
@@ -84,6 +83,10 @@
 #  include "cmExtraEclipseCDT4Generator.h"
 #endif
 
+#if defined(__linux__) || defined(_WIN32)
+#  include "cmGlobalGhsMultiGenerator.h"
+#endif
+
 #if defined(__APPLE__)
 #  if defined(CMAKE_BUILD_WITH_CMAKE)
 #    include "cmGlobalXCodeGenerator.h"
@@ -1833,13 +1836,15 @@ void cmake::AddDefaultGenerators()
   this->Generators.push_back(cmGlobalBorlandMakefileGenerator::NewFactory());
   this->Generators.push_back(cmGlobalNMakeMakefileGenerator::NewFactory());
   this->Generators.push_back(cmGlobalJOMMakefileGenerator::NewFactory());
-  this->Generators.push_back(cmGlobalGhsMultiGenerator::NewFactory());
 #  endif
   this->Generators.push_back(cmGlobalMSYSMakefileGenerator::NewFactory());
   this->Generators.push_back(cmGlobalMinGWMakefileGenerator::NewFactory());
 #endif
   this->Generators.push_back(cmGlobalUnixMakefileGenerator3::NewFactory());
 #if defined(CMAKE_BUILD_WITH_CMAKE)
+#  if defined(__linux__) || defined(_WIN32)
+  this->Generators.push_back(cmGlobalGhsMultiGenerator::NewFactory());
+#  endif
   this->Generators.push_back(cmGlobalNinjaGenerator::NewFactory());
 #endif
 #if defined(CMAKE_USE_WMAKE)