[Cmake-commits] CMake branch, next, updated. v3.0.0-rc2-1205-g41c7d6a

Stephen Kelly steveire at gmail.com
Wed Mar 19 08:17:10 EDT 2014


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- Log -----------------------------------------------------------------
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=41c7d6a0e2a6bffcf682926007a53445fb98fa2f
commit 41c7d6a0e2a6bffcf682926007a53445fb98fa2f
Merge: ea6edbc d7913f8
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Wed Mar 19 08:17:08 2014 -0400
Commit:     CMake Topic Stage <kwrobot at kitware.com>
CommitDate: Wed Mar 19 08:17:08 2014 -0400

    Merge topic 'target-sources-refactor' into next
    
    d7913f86 cmGeneratorTarget: Compute target objects on demand
    7d9ed2ac cmTarget: Compute languages from object libraries on demand.
    4dffa7f2 cmGeneratorTarget: Compute consumed object libraries on demand.
    021e6c44 cmComputeTargetDepends: Track object library depends.
    91b44cc4 cmTarget: Allow any generator expression in SOURCES property.
    7be577cc cmTarget: Include TARGET_OBJECTS genex in target SOURCES property.
    bf2a8cb5 cmGlobalGenerator: Add interface to call ForceLinkerLanguages
    ef73a711 cmStringCommand: Add GENEX_STRIP subcommand.
    9cbc94e8 Genex: Evaluate TARGET_OBJECTS as a normal expression.


http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=d7913f8633fce270636bc3b12c471edb53d2c460
commit d7913f8633fce270636bc3b12c471edb53d2c460
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Fri Mar 14 13:21:26 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:09 2014 +0100

    cmGeneratorTarget: Compute target objects on demand
    
    Add a ComputeObjectMapping method to compute the object
    names.  It takes mapping to populate as an out-parameter so
    that it can be extended in the future with parameters
    relevant to generator expression evaluation.
    
    Remove the supporting cmGeneratorTarget::AddObject method. It is
    no longer needed as the container member is populated directly.
    
    The ComputeObjectMapping method is called whenever objects are
    requested from the cmGeneratorTarget.  Because the Xcode generator
    makes no such request, explicitly invoke the method from that
    generator so that the logic of checking for bad sources in object
    libraries is executed.
    
    In a follow-up, the UseObjectLibraries usage may be replaced by a
    true generator expression evaluator for TARGET_OBJECTS. That
    will require generators to use cmGeneratorTarget::GetExternalObjects
    which is not currently the case for Xcode and VS generators.

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 0b80d6b..323e3f7 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -310,18 +310,36 @@ cmGeneratorTarget
 ::GetObjectSources(std::vector<cmSourceFile const*> &data) const
 {
   IMPLEMENT_VISIT(ObjectSources);
+
+  if (!this->Objects.empty())
+    {
+    return;
+    }
+
+  for(std::vector<cmSourceFile const*>::const_iterator it = data.begin();
+      it != data.end(); ++it)
+    {
+    this->Objects[*it];
+    }
+
+  this->LocalGenerator->ComputeObjectFilenames(this->Objects, this);
 }
 
-//----------------------------------------------------------------------------
-const std::string& cmGeneratorTarget::GetObjectName(cmSourceFile const* file)
+void cmGeneratorTarget::ComputeObjectMapping()
 {
-  return this->Objects[file];
+  if(!this->Objects.empty())
+    {
+    return;
+    }
+  std::vector<cmSourceFile const*> sourceFiles;
+  this->GetObjectSources(sourceFiles);
 }
 
-void cmGeneratorTarget::AddObject(cmSourceFile const* sf,
-                                  std::string const&name)
+//----------------------------------------------------------------------------
+const std::string& cmGeneratorTarget::GetObjectName(cmSourceFile const* file)
 {
-    this->Objects[sf] = name;
+  this->ComputeObjectMapping();
+  return this->Objects[file];
 }
 
 //----------------------------------------------------------------------------
@@ -333,6 +351,7 @@ void cmGeneratorTarget::AddExplicitObjectName(cmSourceFile const* sf)
 //----------------------------------------------------------------------------
 bool cmGeneratorTarget::HasExplicitObjectName(cmSourceFile const* file) const
 {
+  const_cast<cmGeneratorTarget*>(this)->ComputeObjectMapping();
   std::set<cmSourceFile const*>::const_iterator it
                                         = this->ExplicitObjectName.find(file);
   return it != this->ExplicitObjectName.end();
diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index cb59783..38e6510 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -35,7 +35,6 @@ public:
   void GetObjectSources(std::vector<cmSourceFile const*> &) const;
   const std::string& GetObjectName(cmSourceFile const* file);
 
-  void AddObject(cmSourceFile const* sf, std::string const&name);
   bool HasExplicitObjectName(cmSourceFile const* file) const;
   void AddExplicitObjectName(cmSourceFile const* sf);
 
@@ -47,6 +46,8 @@ public:
   void GetCustomCommands(std::vector<cmSourceFile const*>&) const;
   void GetExpectedResxHeaders(std::set<std::string>&) const;
 
+  void ComputeObjectMapping();
+
   cmTarget* Target;
   cmMakefile* Makefile;
   cmLocalGenerator* LocalGenerator;
@@ -123,7 +124,7 @@ private:
   typedef std::map<cmSourceFile const*, SourceEntry> SourceEntriesType;
   SourceEntriesType SourceEntries;
 
-  std::map<cmSourceFile const*, std::string> Objects;
+  mutable std::map<cmSourceFile const*, std::string> Objects;
   std::set<cmSourceFile const*> ExplicitObjectName;
   mutable std::map<std::string, std::vector<std::string> > SystemIncludesCache;
 
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 6caaee3..66ccf39 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -1222,8 +1222,6 @@ void cmGlobalGenerator::Generate()
     this->LocalGenerators[i]->GenerateTargetManifest();
     }
 
-  this->ComputeGeneratorTargetObjects();
-
   this->ProcessEvaluationFiles();
 
   // Compute the inter-target dependencies.
@@ -1440,27 +1438,6 @@ void cmGlobalGenerator::CreateGeneratorTargets()
     }
 }
 
-//----------------------------------------------------------------------------
-void cmGlobalGenerator::ComputeGeneratorTargetObjects()
-{
-  // Construct per-target generator information.
-  for(unsigned int i=0; i < this->LocalGenerators.size(); ++i)
-    {
-    cmMakefile *mf = this->LocalGenerators[i]->GetMakefile();
-    cmGeneratorTargetsType targets = mf->GetGeneratorTargets();
-    for(cmGeneratorTargetsType::iterator ti = targets.begin();
-        ti != targets.end(); ++ti)
-      {
-      if (ti->second->Target->IsImported()
-          || ti->second->Target->GetType() == cmTarget::INTERFACE_LIBRARY)
-        {
-        continue;
-        }
-      cmGeneratorTarget* gt = ti->second;
-      this->ComputeTargetObjects(gt);
-      }
-    }
-}
 
 //----------------------------------------------------------------------------
 void cmGlobalGenerator::ClearGeneratorMembers()
@@ -1522,29 +1499,6 @@ cmGlobalGenerator::GetGeneratorTarget(cmTarget const* t) const
 }
 
 //----------------------------------------------------------------------------
-void cmGlobalGenerator::ComputeTargetObjects(cmGeneratorTarget* gt) const
-{
-  std::vector<cmSourceFile const*> objectSources;
-  gt->GetObjectSources(objectSources);
-
-  std::map<cmSourceFile const*, std::string> mapping;
-  for(std::vector<cmSourceFile const*>::const_iterator it
-      = objectSources.begin(); it != objectSources.end(); ++it)
-    {
-    mapping[*it];
-    }
-
-  gt->LocalGenerator->ComputeObjectFilenames(mapping, gt);
-
-  for(std::map<cmSourceFile const*, std::string>::const_iterator it
-      = mapping.begin(); it != mapping.end(); ++it)
-    {
-    assert(!it->second.empty());
-    gt->AddObject(it->first, it->second);
-    }
-}
-
-//----------------------------------------------------------------------------
 void cmGlobalGenerator::ComputeTargetObjectDirectory(cmGeneratorTarget*) const
 {
 }
diff --git a/Source/cmGlobalGenerator.h b/Source/cmGlobalGenerator.h
index 668bb6b..54f5f3b 100644
--- a/Source/cmGlobalGenerator.h
+++ b/Source/cmGlobalGenerator.h
@@ -444,8 +444,6 @@ private:
   friend class cmake;
   void CreateGeneratorTargets(cmMakefile* mf);
   void CreateGeneratorTargets();
-  void ComputeGeneratorTargetObjects();
-  void ComputeTargetObjects(cmGeneratorTarget* gt) const;
 
   void ClearGeneratorMembers();
 
diff --git a/Source/cmGlobalXCodeGenerator.cxx b/Source/cmGlobalXCodeGenerator.cxx
index 2a6e522..d9d4927 100644
--- a/Source/cmGlobalXCodeGenerator.cxx
+++ b/Source/cmGlobalXCodeGenerator.cxx
@@ -987,6 +987,8 @@ cmGlobalXCodeGenerator::CreateXCodeTargets(cmLocalGenerator* gen,
     cmtarget.GetSourceFiles(classes);
     std::sort(classes.begin(), classes.end(), cmSourceFilePathCompare());
 
+    gtgt->ComputeObjectMapping();
+
     std::vector<cmXCodeObject*> externalObjFiles;
     std::vector<cmXCodeObject*> headerFiles;
     std::vector<cmXCodeObject*> resourceFiles;

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=7d9ed2ac61f6c6e8a03dc1161a48bc8c71463e9c
commit 7d9ed2ac61f6c6e8a03dc1161a48bc8c71463e9c
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Tue Mar 18 19:23:45 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:09 2014 +0100

    cmTarget: Compute languages from object libraries on demand.

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 4605776..9756ce6 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -608,13 +608,6 @@ void cmTarget::AddSources(std::vector<std::string> const& srcs)
     if(src[0] == '$' && src[1] == '<')
       {
       this->AddSource(src);
-
-      if(cmHasLiteralPrefix(i->c_str(), "$<TARGET_OBJECTS:") &&
-         (*i)[i->size()-1] == '>')
-        {
-        std::string objLibName = i->substr(17, i->size()-18);
-        this->ObjectLibraries.push_back(objLibName);
-        }
       }
     else
       {
@@ -5013,6 +5006,53 @@ void cmTarget::GetLanguages(std::set<std::string>& languages) const
       languages.insert(lang);
       }
     }
+
+  std::vector<cmTarget*> objectLibraries;
+  std::vector<cmSourceFile const*> externalObjects;
+  if (this->Makefile->GetGeneratorTargets().empty())
+    {
+    // At configure-time, this method can be called as part of getting the
+    // LOCATION property or to export() a file to be include()d.  However
+    // there is no cmGeneratorTarget at configure-time, so search the SOURCES
+    // for TARGET_OBJECTS instead for backwards compatibility with OLD
+    // behavior of CMP0024 and CMP0026 only.
+    std::vector<std::string> srcs;
+    cmSystemTools::ExpandListArgument(this->GetProperty("SOURCES"), srcs);
+    for(std::vector<std::string>::const_iterator it = srcs.begin();
+        it != srcs.end(); ++it)
+      {
+      if (cmHasLiteralPrefix(*it, "$<TARGET_OBJECTS:")
+          && cmHasLiteralSuffix(*it, ">"))
+        {
+        std::string objLibName = it->substr(17, it->size()-18);
+        if (cmTarget* tgt = this->Makefile->FindTargetToUse(objLibName))
+          {
+          objectLibraries.push_back(tgt);
+          }
+        }
+      }
+    }
+  else
+    {
+    cmGeneratorTarget* gt = this->Makefile->GetLocalGenerator()
+                                ->GetGlobalGenerator()
+                                ->GetGeneratorTarget(this);
+    gt->GetExternalObjects(externalObjects);
+    for(std::vector<cmSourceFile const*>::const_iterator
+          i = externalObjects.begin(); i != externalObjects.end(); ++i)
+      {
+      std::string objLib = (*i)->GetObjectLibrary();
+      if (cmTarget* tgt = this->Makefile->FindTargetToUse(objLib))
+        {
+        objectLibraries.push_back(tgt);
+        }
+      }
+    }
+  for(std::vector<cmTarget*>::const_iterator
+      i = objectLibraries.begin(); i != objectLibraries.end(); ++i)
+    {
+    (*i)->GetLanguages(languages);
+    }
 }
 
 //----------------------------------------------------------------------------
@@ -6077,19 +6117,6 @@ cmTarget::ComputeLinkImplementationLanguages(LinkImplementation& impl) const
   std::set<std::string> languages;
   // Get languages used in our source files.
   this->GetLanguages(languages);
-  // Get languages used in object library sources.
-  for(std::vector<std::string>::const_iterator
-      i = this->ObjectLibraries.begin();
-      i != this->ObjectLibraries.end(); ++i)
-    {
-    if(cmTarget* objLib = this->Makefile->FindTargetToUse(*i))
-      {
-      if(objLib->GetType() == cmTarget::OBJECT_LIBRARY)
-        {
-        objLib->GetLanguages(languages);
-        }
-      }
-    }
   // Copy the set of langauges to the link implementation.
   for(std::set<std::string>::iterator li = languages.begin();
       li != languages.end(); ++li)
diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 45fca53..fcbff93 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -137,10 +137,6 @@ public:
    */
   void GetSourceFiles(std::vector<std::string> &files) const;
   void GetSourceFiles(std::vector<cmSourceFile*> &files) const;
-  std::vector<std::string> const& GetObjectLibraries() const
-    {
-    return this->ObjectLibraries;
-    }
 
   /**
    * Add sources to the target.
@@ -686,7 +682,6 @@ private:
   std::vector<cmCustomCommand> PreLinkCommands;
   std::vector<cmCustomCommand> PostBuildCommands;
   TargetType TargetTypeValue;
-  std::vector<std::string> ObjectLibraries;
   LinkLibraryVectorType LinkLibraries;
   LinkLibraryVectorType PrevLinkedLibraries;
   bool LinkLibrariesAnalyzed;

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=4dffa7f2a48a897e2c3fe7b579c6022d71d8f561
commit 4dffa7f2a48a897e2c3fe7b579c6022d71d8f561
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Tue Mar 18 17:07:56 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:09 2014 +0100

    cmGeneratorTarget: Compute consumed object libraries on demand.
    
    Remove up-front object library computation from cmGlobalGenerator.
    
    Adjust tests for message coming from the generator expression
    evaluation.

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index fe70473..0b80d6b 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -503,57 +503,6 @@ void cmGeneratorTarget::GetSourceFiles(std::vector<cmSourceFile*> &files) const
 }
 
 //----------------------------------------------------------------------------
-void cmGeneratorTarget::LookupObjectLibraries()
-{
-  std::vector<std::string> const& objLibs =
-    this->Target->GetObjectLibraries();
-  for(std::vector<std::string>::const_iterator oli = objLibs.begin();
-      oli != objLibs.end(); ++oli)
-    {
-    std::string const& objLibName = *oli;
-    if(cmTarget* objLib = this->Makefile->FindTargetToUse(objLibName))
-      {
-      if(objLib->GetType() == cmTarget::OBJECT_LIBRARY)
-        {
-        if(this->Target->GetType() != cmTarget::EXECUTABLE &&
-           this->Target->GetType() != cmTarget::STATIC_LIBRARY &&
-           this->Target->GetType() != cmTarget::SHARED_LIBRARY &&
-           this->Target->GetType() != cmTarget::MODULE_LIBRARY)
-          {
-          this->GlobalGenerator->GetCMakeInstance()
-            ->IssueMessage(cmake::FATAL_ERROR,
-                           "Only executables and non-OBJECT libraries may "
-                           "reference target objects.",
-                           this->Target->GetBacktrace());
-          return;
-          }
-        this->ObjectLibraries.push_back(objLib);
-        }
-      else
-        {
-        cmOStringStream e;
-        e << "Objects of target \"" << objLibName
-          << "\" referenced but is not an OBJECT library.";
-        this->GlobalGenerator->GetCMakeInstance()
-          ->IssueMessage(cmake::FATAL_ERROR, e.str(),
-                         this->Target->GetBacktrace());
-        return;
-        }
-      }
-    else
-      {
-      cmOStringStream e;
-      e << "Objects of target \"" << objLibName
-        << "\" referenced but no such target exists.";
-      this->GlobalGenerator->GetCMakeInstance()
-        ->IssueMessage(cmake::FATAL_ERROR, e.str(),
-                       this->Target->GetBacktrace());
-      return;
-      }
-    }
-}
-
-//----------------------------------------------------------------------------
 std::string cmGeneratorTarget::GetModuleDefinitionFile() const
 {
   std::string data;
@@ -565,9 +514,22 @@ std::string cmGeneratorTarget::GetModuleDefinitionFile() const
 void
 cmGeneratorTarget::UseObjectLibraries(std::vector<std::string>& objs) const
 {
+  std::vector<cmSourceFile const*> objectFiles;
+  this->GetExternalObjects(objectFiles);
+  std::vector<cmTarget*> objectLibraries;
+  for(std::vector<cmSourceFile const*>::const_iterator
+      it = objectFiles.begin(); it != objectFiles.end(); ++it)
+    {
+    std::string objLib = (*it)->GetObjectLibrary();
+    if (cmTarget* tgt = this->Makefile->FindTargetToUse(objLib))
+      {
+      objectLibraries.push_back(tgt);
+      }
+    }
+
   for(std::vector<cmTarget*>::const_iterator
-        ti = this->ObjectLibraries.begin();
-      ti != this->ObjectLibraries.end(); ++ti)
+        ti = objectLibraries.begin();
+      ti != objectLibraries.end(); ++ti)
     {
     cmTarget* objLib = *ti;
     cmGeneratorTarget* ogt =
diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index 53e27c5..cb59783 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -84,8 +84,6 @@ public:
    */
   void TraceDependencies();
 
-  void LookupObjectLibraries();
-
   /** Get sources that must be built before the given source.  */
   std::vector<cmSourceFile*> const*
   GetSourceDepends(cmSourceFile const* sf) const;
@@ -127,7 +125,6 @@ private:
 
   std::map<cmSourceFile const*, std::string> Objects;
   std::set<cmSourceFile const*> ExplicitObjectName;
-  std::vector<cmTarget*> ObjectLibraries;
   mutable std::map<std::string, std::vector<std::string> > SystemIncludesCache;
 
   void ConstructSourceFileFlags() const;
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 2f3c6c9..6caaee3 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -1457,7 +1457,6 @@ void cmGlobalGenerator::ComputeGeneratorTargetObjects()
         continue;
         }
       cmGeneratorTarget* gt = ti->second;
-      gt->LookupObjectLibraries();
       this->ComputeTargetObjects(gt);
       }
     }
diff --git a/Tests/RunCMake/ObjectLibrary/BadSourceExpression2-stderr.txt b/Tests/RunCMake/ObjectLibrary/BadSourceExpression2-stderr.txt
index f1fcbe8..7060c61 100644
--- a/Tests/RunCMake/ObjectLibrary/BadSourceExpression2-stderr.txt
+++ b/Tests/RunCMake/ObjectLibrary/BadSourceExpression2-stderr.txt
@@ -1,4 +1,8 @@
 CMake Error at BadSourceExpression2.cmake:1 \(add_library\):
+  Error evaluating generator expression:
+
+    \$<TARGET_OBJECTS:DoesNotExist>
+
   Objects of target "DoesNotExist" referenced but no such target exists.
 Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/ObjectLibrary/BadSourceExpression3-stderr.txt b/Tests/RunCMake/ObjectLibrary/BadSourceExpression3-stderr.txt
index ad14a35..838b3d8 100644
--- a/Tests/RunCMake/ObjectLibrary/BadSourceExpression3-stderr.txt
+++ b/Tests/RunCMake/ObjectLibrary/BadSourceExpression3-stderr.txt
@@ -1,4 +1,8 @@
 CMake Error at BadSourceExpression3.cmake:2 \(add_library\):
+  Error evaluating generator expression:
+
+    \$<TARGET_OBJECTS:NotObjLib>
+
   Objects of target "NotObjLib" referenced but is not an OBJECT library.
 Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=021e6c44dc56e15ed526ff81dc86fe46f044220e
commit 021e6c44dc56e15ed526ff81dc86fe46f044220e
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Tue Mar 18 17:04:46 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:08 2014 +0100

    cmComputeTargetDepends: Track object library depends.
    
    Relieve cmGeneratorTarget of that responsibility.

diff --git a/Source/cmComputeTargetDepends.cxx b/Source/cmComputeTargetDepends.cxx
index b4dbce7..723988b 100644
--- a/Source/cmComputeTargetDepends.cxx
+++ b/Source/cmComputeTargetDepends.cxx
@@ -16,6 +16,7 @@
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
 #include "cmSystemTools.h"
+#include "cmSourceFile.h"
 #include "cmTarget.h"
 #include "cmake.h"
 
@@ -213,6 +214,34 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
   {
   std::set<std::string> emitted;
   {
+  cmGeneratorTarget* gt = depender->GetMakefile()->GetLocalGenerator()
+                                  ->GetGlobalGenerator()
+                                  ->GetGeneratorTarget(depender);
+  std::vector<cmSourceFile const*> objectFiles;
+  gt->GetExternalObjects(objectFiles);
+  for(std::vector<cmSourceFile const*>::const_iterator
+      it = objectFiles.begin(); it != objectFiles.end(); ++it)
+    {
+    std::string objLib = (*it)->GetObjectLibrary();
+    if (emitted.insert(objLib).second)
+      {
+      if(depender->GetType() != cmTarget::EXECUTABLE &&
+          depender->GetType() != cmTarget::STATIC_LIBRARY &&
+          depender->GetType() != cmTarget::SHARED_LIBRARY &&
+          depender->GetType() != cmTarget::MODULE_LIBRARY)
+        {
+        this->GlobalGenerator->GetCMakeInstance()
+          ->IssueMessage(cmake::FATAL_ERROR,
+                          "Only executables and non-OBJECT libraries may "
+                          "reference target objects.",
+                          depender->GetBacktrace());
+        return;
+        }
+      const_cast<cmTarget*>(depender)->AddUtility(objLib);
+      }
+    }
+  }
+  {
   std::vector<std::string> tlibs;
   depender->GetDirectLinkLibraries("", tlibs, depender);
   // A target should not depend on itself.
diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 8984874..fe70473 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -527,7 +527,6 @@ void cmGeneratorTarget::LookupObjectLibraries()
                            this->Target->GetBacktrace());
           return;
           }
-        this->Target->AddUtility(objLib->GetName());
         this->ObjectLibraries.push_back(objLib);
         }
       else

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=91b44cc41768481454443afa6e769f200658ddb8
commit 91b44cc41768481454443afa6e769f200658ddb8
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Tue Mar 18 16:40:46 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:08 2014 +0100

    cmTarget: Allow any generator expression in SOURCES property.
    
    Remove use of UseObjectLibraries from Makefile and Ninja generators. It
    is not needed now because those generators use GetExternalObjects
    which already contains the objects from object libraries.
    
    The VS10 generator calls both the UseObjectLibraries and the GetExternalObjects
    methods. Ensure that duplicates are not created by skipping objects
    from object libraries in handling of GetExternalObjects.
    
    Similarly, fix Xcode object handling by skipping external objects from
    OBJECT_LIBRARY usage as appropriate.
    
    The error message in the BadSourceExpression1 test is now reported
    by the generator expression evaluator, so it has different text.

diff --git a/Help/command/add_executable.rst b/Help/command/add_executable.rst
index 231eeed..4ed10e1 100644
--- a/Help/command/add_executable.rst
+++ b/Help/command/add_executable.rst
@@ -35,8 +35,11 @@ If ``EXCLUDE_FROM_ALL`` is given the corresponding property will be set on
 the created target.  See documentation of the :prop_tgt:`EXCLUDE_FROM_ALL`
 target property for details.
 
-See the :manual:`cmake-buildsystem(7)` manual for more on defining
-buildsystem properties.
+Source arguments to ``add_executable`` may use "generator expressions" with
+the syntax ``$<...>``.  See the :manual:`cmake-generator-expressions(7)`
+manual for available expressions.  See the :manual:`cmake-buildsystem(7)`
+manual for more on defining buildsystem properties.
+
 
 --------------------------------------------------------------------------
 
diff --git a/Help/command/add_library.rst b/Help/command/add_library.rst
index 0944269..e93ef53 100644
--- a/Help/command/add_library.rst
+++ b/Help/command/add_library.rst
@@ -39,8 +39,10 @@ If ``EXCLUDE_FROM_ALL`` is given the corresponding property will be set on
 the created target.  See documentation of the :prop_tgt:`EXCLUDE_FROM_ALL`
 target property for details.
 
-See the :manual:`cmake-buildsystem(7)` manual for more on defining buildsystem
-properties.
+Source arguments to ``add_library`` may use "generator expressions" with
+the syntax ``$<...>``.  See the :manual:`cmake-generator-expressions(7)`
+manual for available expressions.  See the :manual:`cmake-buildsystem(7)`
+manual for more on defining buildsystem properties.
 
 --------------------------------------------------------------------------
 
diff --git a/Help/release/dev/target-SOURCES-genex.rst b/Help/release/dev/target-SOURCES-genex.rst
index 1ca6f66..9a65101 100644
--- a/Help/release/dev/target-SOURCES-genex.rst
+++ b/Help/release/dev/target-SOURCES-genex.rst
@@ -5,3 +5,8 @@ target-SOURCES-genex
   :manual:`generator expression <cmake-generator-expressions(7)>`
   such as ``TARGET_OBJECTS`` when read at configure time, if
   policy :policy:`CMP0051` is ``NEW``.
+
+* The :prop_tgt:`SOURCES` target property now generally supports
+  :manual:`generator expression <cmake-generator-expressions(7)>`.  The
+  generator expressions may be used in the :command:`add_library` and
+  :command:`add_executable` commands.
diff --git a/Source/cmGlobalXCodeGenerator.cxx b/Source/cmGlobalXCodeGenerator.cxx
index fdf73d6..2a6e522 100644
--- a/Source/cmGlobalXCodeGenerator.cxx
+++ b/Source/cmGlobalXCodeGenerator.cxx
@@ -1007,7 +1007,10 @@ cmGlobalXCodeGenerator::CreateXCodeTargets(cmLocalGenerator* gen,
       if(filetype &&
          filetype->GetString() == "compiled.mach-o.objfile")
         {
-        externalObjFiles.push_back(xsf);
+        if ((*i)->GetObjectLibrary().empty())
+          {
+          externalObjFiles.push_back(xsf);
+          }
         }
       else if(this->IsHeaderFile(*i) ||
         (tsFlags.Type == cmGeneratorTarget::SourceFileTypePrivateHeader) ||
diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx
index 6759d05..c520f9e 100644
--- a/Source/cmMakefileTargetGenerator.cxx
+++ b/Source/cmMakefileTargetGenerator.cxx
@@ -202,9 +202,6 @@ void cmMakefileTargetGenerator::WriteTargetBuildRules()
     // Generate this object file's rule file.
     this->WriteObjectRuleFiles(**si);
     }
-
-  // Add object library contents as external objects.
-  this->GeneratorTarget->UseObjectLibraries(this->ExternalObjects);
 }
 
 //----------------------------------------------------------------------------
diff --git a/Source/cmNinjaTargetGenerator.cxx b/Source/cmNinjaTargetGenerator.cxx
index 4319f3c..ae3bff4 100644
--- a/Source/cmNinjaTargetGenerator.cxx
+++ b/Source/cmNinjaTargetGenerator.cxx
@@ -520,17 +520,6 @@ cmNinjaTargetGenerator
     this->ModuleDefinitionFile = this->ConvertToNinjaPath(def.c_str());
     }
 
-  {
-  // Add object library contents as external objects.
-  std::vector<std::string> objs;
-  this->GeneratorTarget->UseObjectLibraries(objs);
-  for(std::vector<std::string>::iterator oi = objs.begin();
-      oi != objs.end(); ++oi)
-    {
-    this->Objects.push_back(ConvertToNinjaPath(oi->c_str()));
-    }
-  }
-
   this->GetBuildFileStream() << "\n";
 }
 
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index de71147..4605776 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -551,15 +551,16 @@ void cmTarget::GetSourceFiles(std::vector<std::string> &files) const
       si != this->Internal->SourceEntries.end(); ++si)
     {
     std::vector<std::string> srcs;
-    cmSystemTools::ExpandListArgument((*si)->ge->GetInput(), srcs);
+    cmSystemTools::ExpandListArgument((*si)->ge->Evaluate(this->Makefile,
+                                        "",
+                                        false,
+                                        this),
+                                      srcs);
+
     for(std::vector<std::string>::const_iterator i = srcs.begin();
         i != srcs.end(); ++i)
       {
       std::string src = *i;
-      if (cmGeneratorExpression::Find(src) != std::string::npos)
-        {
-        continue;
-        }
       cmSourceFile* sf = this->Makefile->GetOrCreateSource(src);
       std::string e;
       src = sf->GetFullPath(&e);
@@ -606,7 +607,14 @@ void cmTarget::AddSources(std::vector<std::string> const& srcs)
     const char* src = i->c_str();
     if(src[0] == '$' && src[1] == '<')
       {
-      this->ProcessSourceExpression(*i);
+      this->AddSource(src);
+
+      if(cmHasLiteralPrefix(i->c_str(), "$<TARGET_OBJECTS:") &&
+         (*i)[i->size()-1] == '>')
+        {
+        std::string objLibName = i->substr(17, i->size()-18);
+        this->ObjectLibraries.push_back(objLibName);
+        }
       }
     else
       {
@@ -734,28 +742,11 @@ cmSourceFile* cmTarget::AddSource(const std::string& src)
     this->Internal->SourceEntries.push_back(
                           new cmTargetInternals::TargetPropertyEntry(cge));
     }
-  return this->Makefile->GetOrCreateSource(src);
-}
-
-
-
-//----------------------------------------------------------------------------
-void cmTarget::ProcessSourceExpression(std::string const& expr)
-{
-  if(cmHasLiteralPrefix(expr.c_str(), "$<TARGET_OBJECTS:") &&
-     expr[expr.size()-1] == '>')
+  if (cmGeneratorExpression::Find(src) != std::string::npos)
     {
-    std::string objLibName = expr.substr(17, expr.size()-18);
-    this->ObjectLibraries.push_back(objLibName);
-    this->AddSource(expr);
-    }
-  else
-    {
-    cmOStringStream e;
-    e << "Unrecognized generator expression:\n"
-      << "  " << expr;
-    this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+    return 0;
     }
+  return this->Makefile->GetOrCreateSource(src);
 }
 
 //----------------------------------------------------------------------------
@@ -2886,6 +2877,14 @@ const char *cmTarget::GetProperty(const std::string& prop,
           {
           std::string objLibName = li->substr(17, li->size()-18);
 
+          if (cmGeneratorExpression::Find(objLibName) != std::string::npos)
+            {
+            ss << sep;
+            sep = ";";
+            ss << *li;
+            continue;
+            }
+
           bool addContent = false;
           bool noMessage = true;
           cmOStringStream e;
@@ -2920,6 +2919,12 @@ const char *cmTarget::GetProperty(const std::string& prop,
             ss << *li;
             }
           }
+        else if (cmGeneratorExpression::Find(*li) == std::string::npos)
+          {
+          ss << sep;
+          sep = ";";
+          ss << *li;
+          }
         else
           {
           cmSourceFile *sf = this->Makefile->GetOrCreateSource(*li);
diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index bb76b7f..8d10e7c 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -1054,6 +1054,19 @@ void cmVisualStudio10TargetGenerator::WriteAllSources()
 
   std::vector<cmSourceFile const*> externalObjects;
   this->GeneratorTarget->GetExternalObjects(externalObjects);
+  for(std::vector<cmSourceFile const*>::iterator
+        si = externalObjects.begin();
+      si != externalObjects.end(); )
+    {
+    if (!(*si)->GetObjectLibrary().empty())
+      {
+      si = externalObjects.erase(si);
+      }
+    else
+      {
+      ++si;
+      }
+    }
   if(this->LocalGenerator->GetVersion() > cmLocalVisualStudioGenerator::VS10)
     {
     // For VS >= 11 we use LinkObjects to avoid linking custom command
diff --git a/Tests/GeneratorExpression/CMakeLists.txt b/Tests/GeneratorExpression/CMakeLists.txt
index 66b175a..b506853 100644
--- a/Tests/GeneratorExpression/CMakeLists.txt
+++ b/Tests/GeneratorExpression/CMakeLists.txt
@@ -166,7 +166,7 @@ add_library(imported4 SHARED IMPORTED)
 set_property(TARGET imported4 APPEND PROPERTY
   INCLUDE_DIRECTORIES $<TARGET_PROPERTY:imported3,INTERFACE_INCLUDE_DIRECTORIES>)
 
-add_executable(someexe empty.cpp)
+add_executable(someexe $<1:empty.cpp> $<0:does_not_exist>)
 add_executable(Alias::SomeExe ALIAS someexe)
 
 add_library(Alias::SomeLib ALIAS empty1)
diff --git a/Tests/RunCMake/ObjectLibrary/BadSourceExpression1-stderr.txt b/Tests/RunCMake/ObjectLibrary/BadSourceExpression1-stderr.txt
index a1cac36..859dc3f 100644
--- a/Tests/RunCMake/ObjectLibrary/BadSourceExpression1-stderr.txt
+++ b/Tests/RunCMake/ObjectLibrary/BadSourceExpression1-stderr.txt
@@ -1,6 +1,8 @@
 CMake Error at BadSourceExpression1.cmake:1 \(add_library\):
-  Unrecognized generator expression:
+  Error evaluating generator expression:
 
     \$<BAD_EXPRESSION>
+
+  Expression did not evaluate to a known generator expression
 Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=7be577ccce60aff679b2ef6054e81b09f829725e
commit 7be577ccce60aff679b2ef6054e81b09f829725e
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Tue Mar 18 16:15:15 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:08 2014 +0100

    cmTarget: Include TARGET_OBJECTS genex in target SOURCES property.
    
    Add policy CMP0051 to control this behavior.

diff --git a/Help/manual/cmake-policies.7.rst b/Help/manual/cmake-policies.7.rst
index 8650a58..b763882 100644
--- a/Help/manual/cmake-policies.7.rst
+++ b/Help/manual/cmake-policies.7.rst
@@ -102,3 +102,4 @@ All Policies
    /policy/CMP0048
    /policy/CMP0049
    /policy/CMP0050
+   /policy/CMP0051
diff --git a/Help/policy/CMP0051.rst b/Help/policy/CMP0051.rst
new file mode 100644
index 0000000..7d85929
--- /dev/null
+++ b/Help/policy/CMP0051.rst
@@ -0,0 +1,24 @@
+CMP0051
+-------
+
+List TARGET_OBJECTS in SOURCES target property.
+
+CMake 3.0 and lower did not include the ``TARGET_OBJECTS``
+:manual:`generator expression <cmake-generator-expressions(7)>` when
+returning the :prop_tgt:`SOURCES` target property.
+
+Configure-time CMake code is not able to handle generator expressions.  If
+using the :prop_tgt:`SOURCES` target property at configure time, it may be
+necessary to first remove generator expressions using the
+:command:`string(STRIP_GENEX)` command.  Generate-time CMake code such as
+:command:`file(GENERATE)` can handle the content without stripping.
+
+The ``OLD`` behavior for this policy is to omit ``TARGET_OBJECTS``
+expressions from the :prop_tgt:`SOURCES` target property.  The ``NEW``
+behavior for this policy is to include ``TARGET_OBJECTS`` expressions
+in the output.
+
+This policy was introduced in CMake version 3.1.
+CMake version |release| warns when the policy is not set and uses
+``OLD`` behavior.  Use the :command:`cmake_policy` command to set it
+to ``OLD`` or ``NEW`` explicitly.
diff --git a/Help/release/dev/target-SOURCES-genex.rst b/Help/release/dev/target-SOURCES-genex.rst
new file mode 100644
index 0000000..1ca6f66
--- /dev/null
+++ b/Help/release/dev/target-SOURCES-genex.rst
@@ -0,0 +1,7 @@
+target-SOURCES-genex
+--------------------
+
+* The :prop_tgt:`SOURCES` target property now contains
+  :manual:`generator expression <cmake-generator-expressions(7)>`
+  such as ``TARGET_OBJECTS`` when read at configure time, if
+  policy :policy:`CMP0051` is ``NEW``.
diff --git a/Source/cmPolicies.cxx b/Source/cmPolicies.cxx
index 2bd553f..226d6c6 100644
--- a/Source/cmPolicies.cxx
+++ b/Source/cmPolicies.cxx
@@ -343,6 +343,11 @@ cmPolicies::cmPolicies()
     CMP0050, "CMP0050",
     "Disallow add_custom_command SOURCE signatures.",
     3,0,0, cmPolicies::WARN);
+
+  this->DefinePolicy(
+    CMP0051, "CMP0051",
+    "List TARGET_OBJECTS in SOURCES target property.",
+    3,0,0, cmPolicies::WARN);
 }
 
 cmPolicies::~cmPolicies()
diff --git a/Source/cmPolicies.h b/Source/cmPolicies.h
index b77235d..7a08a34 100644
--- a/Source/cmPolicies.h
+++ b/Source/cmPolicies.h
@@ -104,6 +104,7 @@ public:
     CMP0048, ///< project() command manages VERSION variables
     CMP0049, ///< Do not expand variables in target source entries
     CMP0050, ///< Disallow add_custom_command SOURCE signatures
+    CMP0051, ///< List TARGET_OBJECTS in SOURCES target property
 
     /** \brief Always the last entry.
      *
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index e79bc2b..de71147 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -556,6 +556,10 @@ void cmTarget::GetSourceFiles(std::vector<std::string> &files) const
         i != srcs.end(); ++i)
       {
       std::string src = *i;
+      if (cmGeneratorExpression::Find(src) != std::string::npos)
+        {
+        continue;
+        }
       cmSourceFile* sf = this->Makefile->GetOrCreateSource(src);
       std::string e;
       src = sf->GetFullPath(&e);
@@ -743,6 +747,7 @@ void cmTarget::ProcessSourceExpression(std::string const& expr)
     {
     std::string objLibName = expr.substr(17, expr.size()-18);
     this->ObjectLibraries.push_back(objLibName);
+    this->AddSource(expr);
     }
   else
     {
@@ -2876,20 +2881,62 @@ const char *cmTarget::GetProperty(const std::string& prop,
       for (std::vector<std::string>::const_iterator
           li = files.begin(); li != files.end(); ++li)
         {
-        cmSourceFile *sf = this->Makefile->GetOrCreateSource(*li);
-        // Construct what is known about this source file location.
-        cmSourceFileLocation const& location = sf->GetLocation();
-        std::string sname = location.GetDirectory();
-        if(!sname.empty())
+        if(cmHasLiteralPrefix(*li, "$<TARGET_OBJECTS:") &&
+            (*li)[li->size() - 1] == '>')
           {
-          sname += "/";
+          std::string objLibName = li->substr(17, li->size()-18);
+
+          bool addContent = false;
+          bool noMessage = true;
+          cmOStringStream e;
+          cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+          switch(this->Makefile->GetPolicyStatus(cmPolicies::CMP0051))
+            {
+            case cmPolicies::WARN:
+              e << (this->Makefile->GetPolicies()
+                    ->GetPolicyWarning(cmPolicies::CMP0051)) << "\n";
+              noMessage = false;
+            case cmPolicies::OLD:
+              break;
+            case cmPolicies::REQUIRED_ALWAYS:
+            case cmPolicies::REQUIRED_IF_USED:
+            case cmPolicies::NEW:
+              addContent = true;
+            }
+          if (!noMessage)
+            {
+            e << "Target \"" << this->Name << "\" contains $<TARGET_OBJECTS> "
+            "generator expression in its sources list.  This content was not "
+            "previously part of the SOURCES property when that property was "
+            "read at configure time.  Code reading that property needs to be "
+            "adapted to ignore the generator expression using the "
+            "string(GENEX_STRIP) command.";
+            this->Makefile->IssueMessage(messageType, e.str());
+            }
+          if (addContent)
+            {
+            ss << sep;
+            sep = ";";
+            ss << *li;
+            }
           }
-        sname += location.GetName();
+        else
+          {
+          cmSourceFile *sf = this->Makefile->GetOrCreateSource(*li);
+          // Construct what is known about this source file location.
+          cmSourceFileLocation const& location = sf->GetLocation();
+          std::string sname = location.GetDirectory();
+          if(!sname.empty())
+            {
+            sname += "/";
+            }
+          sname += location.GetName();
 
-        ss << sep;
-        sep = ";";
-        // Append this list entry.
-        ss << sname;
+          ss << sep;
+          sep = ";";
+          // Append this list entry.
+          ss << sname;
+          }
         }
       }
     this->Properties.SetProperty("SOURCES", ss.str().c_str(),

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=bf2a8cb59a41fb3895b68a3cdb363f24e7c09599
commit bf2a8cb59a41fb3895b68a3cdb363f24e7c09599
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Wed Mar 19 09:11:11 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:08 2014 +0100

    cmGlobalGenerator: Add interface to call ForceLinkerLanguages
    
    Avoid calling it too early when cmGeneratorTarget instances don't
    yet exist.

diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 07637b3..2f3c6c9 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -216,6 +216,11 @@ bool cmGlobalGenerator::GenerateImportFile(const std::string &file)
   return false;
 }
 
+void cmGlobalGenerator::ForceLinkerLanguages()
+{
+
+}
+
 bool
 cmGlobalGenerator::IsExportedTargetsFile(const std::string &filename) const
 {
@@ -1194,6 +1199,8 @@ void cmGlobalGenerator::Generate()
   // Create per-target generator information.
   this->CreateGeneratorTargets();
 
+  this->ForceLinkerLanguages();
+
 #ifdef CMAKE_BUILD_WITH_CMAKE
   for (AutogensType::iterator it = autogens.begin(); it != autogens.end();
        ++it)
diff --git a/Source/cmGlobalGenerator.h b/Source/cmGlobalGenerator.h
index 49a418d..668bb6b 100644
--- a/Source/cmGlobalGenerator.h
+++ b/Source/cmGlobalGenerator.h
@@ -423,6 +423,8 @@ private:
   void WriteSummary(cmTarget* target);
   void FinalizeTargetCompileInfo();
 
+  virtual void ForceLinkerLanguages();
+
   virtual void PrintCompilerAdvice(std::ostream& os, std::string const& lang,
                                    const char* envVar) const;
   void CheckCompilerIdCompatibility(cmMakefile* mf,
diff --git a/Source/cmGlobalXCodeGenerator.cxx b/Source/cmGlobalXCodeGenerator.cxx
index 96b23d2..fdf73d6 100644
--- a/Source/cmGlobalXCodeGenerator.cxx
+++ b/Source/cmGlobalXCodeGenerator.cxx
@@ -343,7 +343,6 @@ void cmGlobalXCodeGenerator::Generate()
     // add ALL_BUILD, INSTALL, etc
     this->AddExtraTargets(root, it->second);
     }
-  this->ForceLinkerLanguages();
   this->cmGlobalGenerator::Generate();
   if(cmSystemTools::GetErrorOccuredFlag())
     {

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=ef73a7110495d7886321c2d1851fd2b11bbf0941
commit ef73a7110495d7886321c2d1851fd2b11bbf0941
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Tue Mar 18 16:21:08 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:08 2014 +0100

    cmStringCommand: Add GENEX_STRIP subcommand.
    
    Strip out any generator expressions in the input string.

diff --git a/Help/command/string.rst b/Help/command/string.rst
index af18825..abde6ee 100644
--- a/Help/command/string.rst
+++ b/Help/command/string.rst
@@ -35,6 +35,7 @@ String operations.
   string(FIND <string> <substring> <output variable> [REVERSE])
   string(TIMESTAMP <output variable> [<format string>] [UTC])
   string(MAKE_C_IDENTIFIER <input string> <output variable>)
+  string(GENEX_STRIP <input string> <output variable>)
 
 REGEX MATCH will match the regular expression once and store the match
 in the output variable.
@@ -154,3 +155,7 @@ If no explicit <format string> is given it will default to:
 
 MAKE_C_IDENTIFIER will write a string which can be used as an
 identifier in C.
+
+``GENEX_STRIP`` will strip any
+:manual:`generator expressions <cmake-generator-expressions(7)>` from the
+``input string`` and store the result in the ``output variable``.
diff --git a/Help/release/dev/string-GENEX_STRIP.rst b/Help/release/dev/string-GENEX_STRIP.rst
new file mode 100644
index 0000000..b5b1074
--- /dev/null
+++ b/Help/release/dev/string-GENEX_STRIP.rst
@@ -0,0 +1,6 @@
+string-GENEX_STRIP
+------------------
+
+* The :command:`string` command learned a new ``GENEX_STRIP`` subcommand
+  which removes
+  :manual:`generator expression <cmake-generator-expressions(7)>`.
diff --git a/Source/cmStringCommand.cxx b/Source/cmStringCommand.cxx
index 7bc7b05..ea762eb 100644
--- a/Source/cmStringCommand.cxx
+++ b/Source/cmStringCommand.cxx
@@ -101,6 +101,10 @@ bool cmStringCommand
     {
     return this->HandleMakeCIdentifierCommand(args);
     }
+  else if(subCommand == "GENEX_STRIP")
+    {
+    return this->HandleGenexStripCommand(args);
+    }
 
   std::string e = "does not recognize sub-command "+subCommand;
   this->SetError(e);
@@ -810,6 +814,27 @@ bool cmStringCommand
 }
 
 //----------------------------------------------------------------------------
+bool cmStringCommand
+::HandleGenexStripCommand(std::vector<std::string> const& args)
+{
+  if(args.size() != 3)
+    {
+    this->SetError("sub-command GENEX_STRIP requires two arguments.");
+    return false;
+    }
+
+  const std::string& input = args[1];
+
+  std::string result = cmGeneratorExpression::Preprocess(input,
+                        cmGeneratorExpression::StripAllGeneratorExpressions);
+
+  const std::string& variableName = args[2];
+
+  this->Makefile->AddDefinition(variableName, result.c_str());
+  return true;
+}
+
+//----------------------------------------------------------------------------
 bool cmStringCommand::HandleStripCommand(
   std::vector<std::string> const& args)
 {
diff --git a/Source/cmStringCommand.h b/Source/cmStringCommand.h
index b8053c5..5b7412d 100644
--- a/Source/cmStringCommand.h
+++ b/Source/cmStringCommand.h
@@ -75,6 +75,7 @@ protected:
   bool HandleFindCommand(std::vector<std::string> const& args);
   bool HandleTimestampCommand(std::vector<std::string> const& args);
   bool HandleMakeCIdentifierCommand(std::vector<std::string> const& args);
+  bool HandleGenexStripCommand(std::vector<std::string> const& args);
 
   class RegexReplacement
   {
diff --git a/Tests/StringFileTest/CMakeLists.txt b/Tests/StringFileTest/CMakeLists.txt
index 00383ab..be6d8fe 100644
--- a/Tests/StringFileTest/CMakeLists.txt
+++ b/Tests/StringFileTest/CMakeLists.txt
@@ -286,3 +286,9 @@ string(MAKE_C_IDENTIFIER "1one-two$" MCI_1)
 if(NOT MCI_1 STREQUAL _1one_two_)
   message(SEND_ERROR "MAKE_C_IDENTIFIER did not create expected result.")
 endif()
+
+string(GENEX_STRIP "one;$<1:two;three>;four;$<TARGET_OBJECTS:some_target>" strip_result)
+
+if (NOT strip_result STREQUAL "one;four")
+  message(SEND_ERROR "GENEX_STRIP did not create expected result: ${strip_result}")
+endif()

http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=9cbc94e880cde90921cd8e06be7687d50c0fd5a4
commit 9cbc94e880cde90921cd8e06be7687d50c0fd5a4
Author:     Stephen Kelly <steveire at gmail.com>
AuthorDate: Wed Feb 26 15:59:18 2014 +0100
Commit:     Stephen Kelly <steveire at gmail.com>
CommitDate: Wed Mar 19 13:16:08 2014 +0100

    Genex: Evaluate TARGET_OBJECTS as a normal expression.

diff --git a/Help/manual/cmake-generator-expressions.7.rst b/Help/manual/cmake-generator-expressions.7.rst
index ac8c3f8..17263d4 100644
--- a/Help/manual/cmake-generator-expressions.7.rst
+++ b/Help/manual/cmake-generator-expressions.7.rst
@@ -188,3 +188,6 @@ property is non-empty::
   Content of ``...`` converted to upper case.
 ``$<MAKE_C_IDENTIFIER:...>``
   Content of ``...`` converted to a C identifier.
+``$<TARGET_OBJECTS:objLib>``
+  List of objects resulting from build of ``objLib``. ``objLib`` must be an
+  object of type ``OBJECT_LIBRARY``.
diff --git a/Help/release/dev/file-GENERATE-TARGET_OBJECTS.rst b/Help/release/dev/file-GENERATE-TARGET_OBJECTS.rst
new file mode 100644
index 0000000..853a803
--- /dev/null
+++ b/Help/release/dev/file-GENERATE-TARGET_OBJECTS.rst
@@ -0,0 +1,6 @@
+file-GENERATE-TARGET_OBJECTS
+----------------------------
+
+* The :command:`file(GENERATE)` subcommand learned to evaluate the
+  ``TARGET_OBJECTS``
+  :manual:`generator expression <cmake-generator-expressions(7)>`.
diff --git a/Source/cmGeneratorExpressionEvaluator.cxx b/Source/cmGeneratorExpressionEvaluator.cxx
index 14b2a1a..669694c 100644
--- a/Source/cmGeneratorExpressionEvaluator.cxx
+++ b/Source/cmGeneratorExpressionEvaluator.cxx
@@ -15,6 +15,8 @@
 #include "cmGeneratorExpressionParser.h"
 #include "cmGeneratorExpressionDAGChecker.h"
 #include "cmGeneratorExpression.h"
+#include "cmLocalGenerator.h"
+#include "cmSourceFile.h"
 
 #include <cmsys/String.h>
 
@@ -1240,6 +1242,67 @@ static const struct TargetNameNode : public cmGeneratorExpressionNode
 } targetNameNode;
 
 //----------------------------------------------------------------------------
+static const struct TargetObjectsNode : public cmGeneratorExpressionNode
+{
+  TargetObjectsNode() {}
+
+  std::string Evaluate(const std::vector<std::string> &parameters,
+                       cmGeneratorExpressionContext *context,
+                       const GeneratorExpressionContent *content,
+                       cmGeneratorExpressionDAGChecker *) const
+  {
+    std::string tgtName = parameters.front();
+    cmGeneratorTarget* gt =
+                context->Makefile->FindGeneratorTargetToUse(tgtName.c_str());
+    if (!gt)
+      {
+      cmOStringStream e;
+      e << "Objects of target \"" << tgtName
+        << "\" referenced but no such target exists.";
+      reportError(context, content->GetOriginalExpression(), e.str());
+      return std::string();
+      }
+    if (gt->GetType() != cmTarget::OBJECT_LIBRARY)
+      {
+      cmOStringStream e;
+      e << "Objects of target \"" << tgtName
+        << "\" referenced but is not an OBJECT library.";
+      reportError(context, content->GetOriginalExpression(), e.str());
+      return std::string();
+      }
+
+    std::vector<cmSourceFile const*> objectSources;
+    gt->GetObjectSources(objectSources);
+    std::map<cmSourceFile const*, std::string> mapping;
+
+    for(std::vector<cmSourceFile const*>::const_iterator it
+        = objectSources.begin(); it != objectSources.end(); ++it)
+      {
+      mapping[*it];
+      }
+
+    gt->LocalGenerator->ComputeObjectFilenames(mapping, gt);
+
+    std::string obj_dir = gt->ObjectDirectory;
+    std::string result;
+    const char* sep = "";
+    for(std::map<cmSourceFile const*, std::string>::const_iterator it
+        = mapping.begin(); it != mapping.end(); ++it)
+      {
+      assert(!it->second.empty());
+      result += sep;
+      std::string objFile = obj_dir + it->second;
+      cmSourceFile* sf = context->Makefile->GetOrCreateSource(objFile, true);
+      sf->SetObjectLibrary(tgtName);
+      sf->SetProperty("EXTERNAL_OBJECT", "1");
+      result += objFile;
+      sep = ";";
+      }
+    return result;
+  }
+} targetObjectsNode;
+
+//----------------------------------------------------------------------------
 static const char* targetPolicyWhitelist[] = {
   0
 #define TARGET_POLICY_STRING(POLICY) \
@@ -1593,6 +1656,7 @@ cmGeneratorExpressionNode* GetNode(const std::string &identifier)
     nodeMap["SEMICOLON"] = &semicolonNode;
     nodeMap["TARGET_PROPERTY"] = &targetPropertyNode;
     nodeMap["TARGET_NAME"] = &targetNameNode;
+    nodeMap["TARGET_OBJECTS"] = &targetObjectsNode;
     nodeMap["TARGET_POLICY"] = &targetPolicyNode;
     nodeMap["BUILD_INTERFACE"] = &buildInterfaceNode;
     nodeMap["INSTALL_INTERFACE"] = &installInterfaceNode;
diff --git a/Source/cmSourceFile.cxx b/Source/cmSourceFile.cxx
index b9b6251..0ab30a2 100644
--- a/Source/cmSourceFile.cxx
+++ b/Source/cmSourceFile.cxx
@@ -39,6 +39,18 @@ std::string const& cmSourceFile::GetExtension() const
 }
 
 //----------------------------------------------------------------------------
+void cmSourceFile::SetObjectLibrary(std::string const& objlib)
+{
+  this->ObjectLibrary = objlib;
+}
+
+//----------------------------------------------------------------------------
+std::string cmSourceFile::GetObjectLibrary() const
+{
+  return this->ObjectLibrary;
+}
+
+//----------------------------------------------------------------------------
 std::string cmSourceFile::GetLanguage()
 {
   // If the language was set explicitly by the user then use it.
diff --git a/Source/cmSourceFile.h b/Source/cmSourceFile.h
index 17c96ac..755a2cf 100644
--- a/Source/cmSourceFile.h
+++ b/Source/cmSourceFile.h
@@ -97,6 +97,9 @@ public:
    */
   bool Matches(cmSourceFileLocation const&);
 
+  void SetObjectLibrary(std::string const& objlib);
+  std::string GetObjectLibrary() const;
+
 private:
   cmSourceFileLocation Location;
   cmPropertyMap Properties;
@@ -105,6 +108,7 @@ private:
   std::string Language;
   std::string FullPath;
   bool FindFullPathFailed;
+  std::string ObjectLibrary;
 
   bool FindFullPath(std::string* error);
   bool TryFullPath(const std::string& path, const std::string& ext);
diff --git a/Tests/GeneratorExpression/CMakeLists.txt b/Tests/GeneratorExpression/CMakeLists.txt
index a0e34ef..66b175a 100644
--- a/Tests/GeneratorExpression/CMakeLists.txt
+++ b/Tests/GeneratorExpression/CMakeLists.txt
@@ -258,3 +258,17 @@ set(CMP0044_TYPE NEW)
 add_subdirectory(CMP0044 ${CMAKE_BINARY_DIR}/CMP0044-NEW)
 set(CMP0044_TYPE OLD)
 add_subdirectory(CMP0044 ${CMAKE_BINARY_DIR}/CMP0044-OLD)
+
+add_library(objlib OBJECT objlib1.c objlib2.c)
+file(GENERATE
+  OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/objlib_files"
+  CONTENT "$<JOIN:$<TARGET_OBJECTS:objlib>,\n>\n"
+)
+add_custom_target(check_object_files ALL
+  COMMAND ${CMAKE_COMMAND}
+    "-DOBJLIB_LISTFILE=${CMAKE_CURRENT_BINARY_DIR}/objlib_files"
+    -DTEST_CONFIGURATION=${CMAKE_BUILD_TYPE}
+    -DEXPECTED_NUM_OBJECTFILES=2
+    -P "${CMAKE_CURRENT_SOURCE_DIR}/check_object_files.cmake"
+  DEPENDS objlib
+)
diff --git a/Tests/GeneratorExpression/check_object_files.cmake b/Tests/GeneratorExpression/check_object_files.cmake
new file mode 100644
index 0000000..889fe80
--- /dev/null
+++ b/Tests/GeneratorExpression/check_object_files.cmake
@@ -0,0 +1,48 @@
+
+if (NOT EXISTS ${OBJLIB_LISTFILE})
+  message(SEND_ERROR "Object listing file \"${OBJLIB_LISTFILE}\" not found!")
+endif()
+
+file(STRINGS ${OBJLIB_LISTFILE} objlib_files)
+
+list(LENGTH objlib_files num_objectfiles)
+if (NOT EXPECTED_NUM_OBJECTFILES EQUAL num_objectfiles)
+  message(SEND_ERROR "Unexpected number of entries in object list file (${num_objectfiles} instead of ${EXPECTED_NUM_OBJECTFILES})")
+endif()
+
+foreach(objlib_file ${objlib_files})
+  set(file_exists False)
+  if (EXISTS ${objlib_file})
+    set(file_exists True)
+  endif()
+
+  if (NOT file_exists)
+    if (objlib_file MATCHES ".(CURRENT_ARCH)")
+      string(REPLACE "$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)" "*" config_file "${objlib_file}")
+      string(REPLACE "$(PROJECT_NAME)" "GeneratorExpression" config_file "${config_file}")
+      string(REPLACE "$(CURRENT_ARCH)" "*" config_file "${config_file}")
+      file(GLOB_RECURSE files "${config_file}")
+      list(LENGTH files num_files)
+      if (NOT files)
+        message(SEND_ERROR "Got no files for expression ${config_file}")
+      endif()
+      set(file_exists True)
+    else()
+      foreach(config_macro "$(Configuration)" "$(OutDir)" "$(IntDir)")
+        string(REPLACE "${config_macro}" "${TEST_CONFIGURATION}" config_file "${objlib_file}")
+        list(APPEND attempts ${config_file})
+        if (EXISTS ${config_file})
+          set(file_exists True)
+        endif()
+      endforeach()
+    endif()
+  endif()
+
+  if (NOT file_exists)
+    if(attempts)
+      list(REMOVE_DUPLICATES attempts)
+      set(tried "  Tried ${attempts}")
+    endif()
+    message(SEND_ERROR "File \"${objlib_file}\" does not exist!${tried}")
+  endif()
+endforeach()
diff --git a/Tests/GeneratorExpression/objlib1.c b/Tests/GeneratorExpression/objlib1.c
new file mode 100644
index 0000000..aa8de0a
--- /dev/null
+++ b/Tests/GeneratorExpression/objlib1.c
@@ -0,0 +1,5 @@
+
+void objlib1()
+{
+
+}
diff --git a/Tests/GeneratorExpression/objlib2.c b/Tests/GeneratorExpression/objlib2.c
new file mode 100644
index 0000000..3c7307a
--- /dev/null
+++ b/Tests/GeneratorExpression/objlib2.c
@@ -0,0 +1,5 @@
+
+void objlib2()
+{
+
+}
diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index f9d590a..f557ded 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -50,6 +50,7 @@ add_RunCMake_test(TargetPropertyGeneratorExpressions)
 add_RunCMake_test(Languages)
 add_RunCMake_test(ObjectLibrary)
 add_RunCMake_test(find_dependency)
+add_RunCMake_test(TargetObjects)
 if(NOT WIN32)
   add_RunCMake_test(PositionIndependentCode)
   set(SKIP_VISIBILITY 0)
diff --git a/Tests/RunCMake/TargetObjects/CMakeLists.txt b/Tests/RunCMake/TargetObjects/CMakeLists.txt
new file mode 100644
index 0000000..be9d403
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.4)
+project(${RunCMake_TEST})
+include(${RunCMake_TEST}.cmake)
diff --git a/Tests/RunCMake/TargetObjects/NoTarget-result.txt b/Tests/RunCMake/TargetObjects/NoTarget-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/NoTarget-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/TargetObjects/NoTarget-stderr.txt b/Tests/RunCMake/TargetObjects/NoTarget-stderr.txt
new file mode 100644
index 0000000..2c4f877
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/NoTarget-stderr.txt
@@ -0,0 +1,8 @@
+CMake Error at NoTarget.cmake:2 \(file\):
+  Error evaluating generator expression:
+
+    \$<TARGET_OBJECTS:NoTarget>
+
+  Objects of target "NoTarget" referenced but no such target exists.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/TargetObjects/NoTarget.cmake b/Tests/RunCMake/TargetObjects/NoTarget.cmake
new file mode 100644
index 0000000..f203c23
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/NoTarget.cmake
@@ -0,0 +1,2 @@
+
+file(GENERATE OUTPUT test_output CONTENT $<TARGET_OBJECTS:NoTarget>)
diff --git a/Tests/RunCMake/TargetObjects/NotObjlibTarget-result.txt b/Tests/RunCMake/TargetObjects/NotObjlibTarget-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/NotObjlibTarget-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/TargetObjects/NotObjlibTarget-stderr.txt b/Tests/RunCMake/TargetObjects/NotObjlibTarget-stderr.txt
new file mode 100644
index 0000000..bb83934
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/NotObjlibTarget-stderr.txt
@@ -0,0 +1,8 @@
+CMake Error at NotObjlibTarget.cmake:4 \(file\):
+  Error evaluating generator expression:
+
+    \$<TARGET_OBJECTS:StaticLib>
+
+  Objects of target "StaticLib" referenced but is not an OBJECT library.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/TargetObjects/NotObjlibTarget.cmake b/Tests/RunCMake/TargetObjects/NotObjlibTarget.cmake
new file mode 100644
index 0000000..c7f8a71
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/NotObjlibTarget.cmake
@@ -0,0 +1,4 @@
+
+add_library(StaticLib empty.cpp)
+
+file(GENERATE OUTPUT test_output CONTENT $<TARGET_OBJECTS:StaticLib>)
diff --git a/Tests/RunCMake/TargetObjects/RunCMakeTest.cmake b/Tests/RunCMake/TargetObjects/RunCMakeTest.cmake
new file mode 100644
index 0000000..30b9fee
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/RunCMakeTest.cmake
@@ -0,0 +1,4 @@
+include(RunCMake)
+
+run_cmake(NoTarget)
+run_cmake(NotObjlibTarget)
diff --git a/Tests/RunCMake/TargetObjects/empty.cpp b/Tests/RunCMake/TargetObjects/empty.cpp
new file mode 100644
index 0000000..bfbbdde
--- /dev/null
+++ b/Tests/RunCMake/TargetObjects/empty.cpp
@@ -0,0 +1,7 @@
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int empty()
+{
+  return 0;
+}

-----------------------------------------------------------------------

Summary of changes:


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