ENH: call configure from cmake

CMakeSystemConfig.cmake.in

@@ -3,8 +3,6 @@
 # in, which need not be the source directory
 #
 SET (WORDS_BIGENDIAN     @CMAKE_WORDS_BIGENDIAN@)
-SET (HAVE_LIMITS_H       @HAVE_LIMITS_H@)
-SET (HAVE_UNISTD_H       @HAVE_UNISTD_H@)
 SET (CMAKE_USE_SPROC     @CMAKE_USE_SPROC@)
 SET (CMAKE_USE_PTHREADS  @CMAKE_USE_PTHREADS@)
 SET (CMAKE_HP_PTHREADS   @CMAKE_HP_PTHREADS@)

Source/CMakeBuildTargets.cxx

@@ -104,15 +104,24 @@ int main(int ac, char** av)
 	std::string path = arg.substr(2);
 	mf.SetHomeOutputDirectory(path.c_str());
 	}
+      if(arg.find("-D",0) == 0)
+	{
+	std::string value = arg.substr(2);
+        mf.AddDefinition(value.c_str(), true);
+	}
       }
     }
   // Only generate makefiles if not trying to make the cache
-  if(!makeCache)
+  cmUnixMakefileGenerator* gen = new cmUnixMakefileGenerator;
+  mf.SetMakefileGenerator(gen);
+  if(makeCache)
     {
-    mf.SetMakefileGenerator(new cmUnixMakefileGenerator);
+    // generate only enough for the cache
+    gen->SetCacheOnlyOn();
+    // generate for this makefile and all below it
+    gen->SetRecurseOn();
     }
 
-
   // Read and parse the input makefile
   mf.MakeStartDirectoriesCurrent();
   cmCacheManager::GetInstance()->LoadCache(&mf);
@@ -137,14 +146,7 @@ int main(int ac, char** av)
     Usage(av[0]);
     return -1;
     }
-  if(makeCache)
-    {
-    mf.GenerateCacheOnly();
-    }
-  else
-    {
   mf.GenerateMakefile();
-    }
   cmCacheManager::GetInstance()->SaveCache(&mf);
   if(makeCache)
     {

Source/Makefile.in

@@ -40,7 +40,7 @@ cmSourceFile.o : $(DEPENDS)
 cmDirectory.o : $(DEPENDS)
 cmCustomCommand.o : $(DEPENDS)
 cmUnixMakefileGenerator.o : $(DEPENDS)
-cmCommands.o : $(DEPENDS) $(srcdir)/*.cxx
+cmCommands.o : $(DEPENDS) $(srcdir)/*Command*.cxx
 cmTarget.o : $(DEPENDS)
 cmCacheManager.o : $(DEPENDS)
 cmSourceGroup.o : $(DEPENDS)

Source/cmCacheManager.cxx

@@ -187,12 +187,29 @@ bool cmCacheManager::SaveCache(const char* path) const
     {
     const CacheEntry& ce = (*i).second; 
     CacheEntryType t = ce.m_Type;
+    if(t != INTERNAL)
+      {
       // Format is key:type=value
       cmCacheManager::OutputHelpString(fout, ce.m_HelpString);
       fout << (*i).first.c_str() << ":"
            << cmCacheManagerTypes[t] << "="
            << ce.m_Value << "\n";
       }
+    }
+  for( std::map<std::string, CacheEntry>::const_iterator i = m_Cache.begin();
+       i != m_Cache.end(); ++i)
+    {
+    const CacheEntry& ce = (*i).second;
+    CacheEntryType t = ce.m_Type;
+    if(t == INTERNAL)
+      {
+      // Format is key:type=value
+      cmCacheManager::OutputHelpString(fout, ce.m_HelpString);
+      fout << (*i).first.c_str() << ":"
+           << cmCacheManagerTypes[t] << "="
+           << ce.m_Value << "\n";
+      }
+    }
   fout << "\n";
   fout.close();
   cmSystemTools::CopyFileIfDifferent(tempFile.c_str(),
@@ -279,8 +296,11 @@ void cmCacheManager::PrintCache(std::ostream& out) const
   for(std::map<std::string, CacheEntry>::const_iterator i = m_Cache.begin();
       i != m_Cache.end(); ++i)
     {
+    if((*i).second.m_Type != INTERNAL)
+      {
       out << (*i).first.c_str() << " = " << (*i).second.m_Value.c_str() << std::endl;
       }
+    }
   out << "\n\n";
   out << "To change values in the CMakeCache, \nedit CMakeCache.txt in your output directory.\n";
   out << "=================================================" << std::endl;

Source/cmCommands.cxx

@@ -23,11 +23,11 @@
 #include "cmCablePackageEntryCommand.cxx"
 #include "cmCableSourceFilesCommand.cxx"
 #include "cmCableWrapCommand.cxx"
-#include "cmConfigureFile.cxx"
+#include "cmConfigureFileCommand.cxx"
 #include "cmConfigureFileNoAutoconf.cxx"
 #include "cmElseCommand.cxx"
 #include "cmEndIfCommand.cxx"
-#include "cmExecProgram.cxx"
+#include "cmExecProgramCommand.cxx"
 #include "cmFindFileCommand.cxx"
 #include "cmFindIncludeCommand.cxx"
 #include "cmFindLibraryCommand.cxx"
@@ -39,6 +39,7 @@
 #include "cmIncludeRegularExpressionCommand.cxx"
 #include "cmLinkDirectoriesCommand.cxx"
 #include "cmLinkLibrariesCommand.cxx"
+#include "cmMakeDirectoryCommand.cxx"
 #include "cmOptionCommand.cxx"
 #include "cmProjectCommand.cxx"
 #include "cmSetCommand.cxx"
@@ -74,11 +75,11 @@ void GetPredefinedCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmCablePackageCommand);
   commands.push_back(new cmCableSourceFilesCommand);
   commands.push_back(new cmCableWrapCommand);
-  commands.push_back(new cmConfigureFile);
+  commands.push_back(new cmConfigureFileCommand);
   commands.push_back(new cmConfigureFileNoAutoconf);
   commands.push_back(new cmElseCommand);
   commands.push_back(new cmEndIfCommand);
-  commands.push_back(new cmExecProgram);
+  commands.push_back(new cmExecProgramCommand);
   commands.push_back(new cmFindFileCommand);
   commands.push_back(new cmFindIncludeCommand);
   commands.push_back(new cmFindLibraryCommand);
@@ -90,6 +91,7 @@ void GetPredefinedCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmIncludeRegularExpressionCommand);
   commands.push_back(new cmLinkDirectoriesCommand);
   commands.push_back(new cmLinkLibrariesCommand);
+  commands.push_back(new cmMakeDirectoryCommand);
   commands.push_back(new cmOptionCommand);
   commands.push_back(new cmProjectCommand);
   commands.push_back(new cmSetCommand);

Source/cmConfigureFileCommand.cxx

@@ -38,22 +38,28 @@ 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.
 
 =========================================================================*/
-#include "cmConfigureFile.h"
+#include "cmConfigureFileCommand.h"
 
-// cmConfigureFile
+// cmConfigureFileCommand
-bool cmConfigureFile::Invoke(std::vector<std::string>& args)
+bool cmConfigureFileCommand::Invoke(std::vector<std::string>& args)
 {
-  if(args.size() != 2 )
+  if(args.size() < 2 )
     {
     this->SetError("called with incorrect number of arguments, expected 2");
     return false;
     }
   m_InputFile = args[0];
   m_OuputFile = args[1];
+  m_CopyOnly = false;
+  if(args[2] == "COPYONLY")
+    {
+    m_CopyOnly  = true;
+    }
+  
   return true;
 }
 
-void cmConfigureFile::FinalPass()
+void cmConfigureFileCommand::FinalPass()
 {
   m_Makefile->ExpandVariablesInString(m_InputFile);
   m_Makefile->ExpandVariablesInString(m_OuputFile);
@@ -92,10 +98,10 @@ void cmConfigureFile::FinalPass()
     if(fin)
       {
       inLine = buffer;
+      if(!m_CopyOnly)
+        {
         m_Makefile->ExpandVariablesInString(inLine);
-      // This call will remove all tcl variable substitutions of the form ${Foo}
+        m_Makefile->RemoveVariablesInString(inLine);
-      // m_Makefile->RemoveVariablesInString(inLine);
-      
         // look for special cmakedefine symbol and handle it
         // is the symbol defined
         if (cmdefine.find(inLine))
@@ -112,6 +118,7 @@ void cmConfigureFile::FinalPass()
                                          "#cmakedefine", "#undef");
             }
           }
+        }
       fout << inLine << "\n";
       }
     }

Source/cmConfigureFileCommand.h

@@ -38,18 +38,18 @@ 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.
 
 =========================================================================*/
-#ifndef cmConfigureFile_h
+#ifndef cmConfigureFileCommand_h
-#define cmConfigureFile_h
+#define cmConfigureFileCommand_h
 
 #include "cmStandardIncludes.h"
 #include "cmCommand.h"
 
-class cmConfigureFile : public cmCommand
+class cmConfigureFileCommand : public cmCommand
 {
 public:
   virtual cmCommand* Clone() 
     {
-      return new cmConfigureFile;
+      return new cmConfigureFileCommand;
     }
 
   /**
@@ -77,12 +77,13 @@ public:
   virtual const char* GetFullDocumentation()
     {
       return
-        "CONFIGURE_FILE(InputFile OutputFile)\n"
+        "CONFIGURE_FILE(InputFile OutputFile [COPYONLY])\n"
 	"The Input and Ouput files have to have full paths.\n"
 	"They can also use variables like CMAKE_BINARY_DIR,CMAKE_SOURCE_DIR.\n"
         "This command replaces any variables in the input file with their\n"
         "values as determined by CMake. If a variables in not defined, it\n"
-        "will be replaced with nothing.";
+        "will be replaced with nothing.  If COPYONLY is passed in, then\n"
+        "then no varible expansion will take place.\n";
     }
 
   /**
@@ -93,6 +94,7 @@ public:
 private:
   std::string m_InputFile;
   std::string m_OuputFile;
+  bool m_CopyOnly;
 };
 
 

Source/cmExecProgramCommand.cxx

@@ -0,0 +1,71 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+Copyright (c) 2001 Insight Consortium
+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.
+
+ * The name of the Insight Consortium, nor the names of any consortium members,
+   nor of any contributors, may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+  * Modified source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER 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 AUTHORS 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.
+
+=========================================================================*/
+#include "cmExecProgramCommand.h"
+#include "cmSystemTools.h"
+
+// cmExecProgramCommand
+bool cmExecProgramCommand::Invoke(std::vector<std::string>& args)
+{
+  if(args.size() < 1 )
+    {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+    }
+  std::string output;
+    m_Makefile->ExpandVariablesInString(args[0]);
+    m_Makefile->ExpandVariablesInString(args[1]);
+  if(args.size() == 2)
+    {
+    cmSystemTools::MakeDirectory(args[1].c_str());
+    std::string command;
+    command = "cd ";
+    command += args[1].c_str();
+    command += "; ";
+    command += args[0].c_str();
+    cmSystemTools::RunCommand(command.c_str(), output);
+    }
+  else
+    {
+    cmSystemTools::RunCommand(args[0].c_str(), output);
+    }
+  return true;
+}
+

Source/cmExecProgramCommand.h

@@ -38,20 +38,20 @@ 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.
 
 =========================================================================*/
-#ifndef cmExecProgram_h
+#ifndef cmExecProgramCommand_h
-#define cmExecProgram_h
+#define cmExecProgramCommand_h
 
 #include "cmStandardIncludes.h"
 #include "cmCommand.h"
 
-/** \class cmExecProgram
+/** \class cmExecProgramCommand
  * \brief Command that adds a target to the build system.
  *
- * cmExecProgram adds an extra target to the build system.
+ * cmExecProgramCommand adds an extra target to the build system.
  * This is useful when you would like to add special
  * targets like "install,", "clean," and so on.
  */
-class cmExecProgram : public cmCommand
+class cmExecProgramCommand : public cmCommand
 {
 public:
   /**
@@ -59,7 +59,7 @@ public:
    */
   virtual cmCommand* Clone() 
     {
-    return new cmExecProgram;
+    return new cmExecProgramCommand;
     }
 
   /**
@@ -91,7 +91,7 @@ public:
       "EXEC_PROGRAM(Executble )";
     }
   
-  cmTypeMacro(cmExecProgram, cmCommand);
+  cmTypeMacro(cmExecProgramCommand, cmCommand);
 };
 
 #endif

Source/cmMakeDirectoryCommand.cxx

@@ -38,19 +38,19 @@ 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.
 
 =========================================================================*/
-#include "cmExecProgram.h"
+#include "cmMakeDirectoryCommand.h"
-#include "cmSystemTools.h"
+#include "cmDirectory.h"
 
-// cmExecProgram
+// cmMakeDirectoryCommand
-bool cmExecProgram::Invoke(std::vector<std::string>& args)
+bool cmMakeDirectoryCommand::Invoke(std::vector<std::string>& args)
 {
   if(args.size() < 1 )
     {
     this->SetError("called with incorrect number of arguments");
     return false;
     }
-  std::string output;
+  m_Makefile->ExpandVariablesInString(args[0]);
-  cmSystemTools::RunCommand(args[0].c_str(), output);
+  cmSystemTools::MakeDirectory(args[0].c_str());
   return true;
 }
 

Source/cmMakeDirectoryCommand.h

@@ -0,0 +1,101 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+Copyright (c) 2001 Insight Consortium
+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.
+
+ * The name of the Insight Consortium, nor the names of any consortium members,
+   nor of any contributors, may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+  * Modified source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER 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 AUTHORS 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.
+
+=========================================================================*/
+#ifndef cmMakeDirectoryCommand_h
+#define cmMakeDirectoryCommand_h
+
+#include "cmStandardIncludes.h"
+#include "cmCommand.h"
+
+/** \class cmMakeDirectoryCommand
+ * \brief Specify auxiliary source code directories.
+ *
+ * cmMakeDirectoryCommand specifies source code directories
+ * that must be built as part of this build process. This directories
+ * are not recursively processed like the SUBDIR command (cmSubdirCommand).
+ * A side effect of this command is to create a subdirectory in the build
+ * directory structure.
+ */
+class cmMakeDirectoryCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone() 
+    {
+    return new cmMakeDirectoryCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool Invoke(std::vector<std::string>& args);
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() { return "MAKE_DIRECTORY";}
+  
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() 
+    {
+    return "Create a directory in the build tree if it does not exist.\n"
+           "Parent directories will be created if the do not exist..";
+    }
+  
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation()
+    {
+    return
+      "MAKE_DIRECTORY(directory)";
+    }
+  
+  cmTypeMacro(cmMakeDirectoryCommand, cmCommand);
+};
+
+
+
+#endif

Source/cmMakefile.cxx

@@ -75,7 +75,7 @@ void cmMakefile::AddDefaultCommands()
     {
     this->AddCommand(*i);
     }
-#ifdef _WIN32
+#if defined(_WIN32) || defined(__CYGWIN__)
   this->AddDefinition("WIN32", "1");
 #else
   this->AddDefinition("UNIX", "1");
@@ -730,66 +730,6 @@ cmMakefile::FindSubDirectoryCMakeListsFiles(std::vector<cmMakefile*>&
 }
 
 
-void cmMakefile::GenerateCacheOnly()
-{
-  std::vector<cmMakefile*> makefiles;
-  this->FindSubDirectoryCMakeListsFiles(makefiles);
-  for(std::vector<cmMakefile*>::iterator i = makefiles.begin();
-      i != makefiles.end(); ++i)
-    {
-    cmMakefile* mf = *i;
-    std::string source = mf->GetHomeDirectory();
-    source += "/CMake/CMakeMakefileTemplate.in";
-    cmSystemTools::MakeDirectory(mf->GetStartOutputDirectory());
-    std::string dest = mf->GetStartOutputDirectory();
-    dest += "/Makefile";
-    std::ofstream fout(dest.c_str());
-    std::cout << "cmake: creating : " << dest.c_str() << "\n";
-    if(!fout)
-      {
-      cmSystemTools::Error("Failed to open file for write " , dest.c_str());
-      }
-    else
-      {
-      if(strcmp(mf->GetHomeDirectory(), 
-                mf->GetHomeOutputDirectory()) == 0)
-        {
-        fout << "srcdir        = .\n\n";
-        }
-      else
-        {
-        fout << "srcdir        = " <<  mf->GetStartDirectory() << "\n";
-        fout << "VPATH         = " <<  mf->GetStartDirectory() << "\n";
-        }
-      }
-    fout << "include "
-         << mf->GetHomeOutputDirectory() << "/CMake/CMakeMaster.make\n";
-    dest = mf->GetStartOutputDirectory();
-    dest += "/CMakeTargets.make";
-    // make sure there is a CMakeTargets.make file as some
-    // makes require it to exist
-    if(!cmSystemTools::FileExists(dest.c_str()))
-      {
-	std::cout << "cmake: creating : " << dest.c_str() << "\n";
-	std::ofstream fout(dest.c_str());
-	if(!fout)
-	  { 
-	    cmSystemTools::Error("Failed to open file for write " , dest.c_str());
-	  }
-	fout << "#Initial CMakeTargets.make file created only to keep \n";
-	fout << "#certain makes happy that don't like to include makefiles\n";
-	fout << "#that do not exist\n";
-      }
-    }
-
-  // CLEAN up the makefiles created
-  for(unsigned int i =0; i < makefiles.size(); ++i)
-    {
-      delete makefiles[i];
-    }
-}
-
-
 /**
  * Add the default definitions to the makefile.  These values must not
  * be dependent on anything that isn't known when this cmMakefile instance

Source/cmMakefile.h

@@ -466,13 +466,6 @@ public:
    */
   void FindSubDirectoryCMakeListsFiles(std::vector<cmMakefile*>& makefiles);
   
-  /** Generate the cache file only.  This is done
-   *  by calling FindSubDirectoryCMakeListsFiles which
-   *  will cause all the rules to fire, and the cache to
-   *  be filled.
-   */
-  void GenerateCacheOnly();
-
   /**
    * find what source group this source is in
    */

Source/cmSystemTools.cxx

@@ -563,6 +563,10 @@ bool cmSystemTools::IsOff(const char* val)
 bool cmSystemTools::RunCommand(const char* command, 
                                std::string& output)
 {
+  const int BUFFER_SIZE = 4096;
+  char buffer[BUFFER_SIZE];
+
+#if defined(WIN32) && !defined(__CYGWIN__)
   std::string commandToFile = command;
   commandToFile += " > ";
   std::string tempFile;
@@ -576,8 +580,6 @@ bool cmSystemTools::RunCommand(const char* command,
                          tempFile.c_str());
     return false;
     }
-  const int BUFFER_SIZE = 4096;
-  char buffer[BUFFER_SIZE];
   while(fin)
     {
     fin.getline(buffer, BUFFER_SIZE);
@@ -585,6 +587,22 @@ bool cmSystemTools::RunCommand(const char* command,
     }
   cmSystemTools::RemoveFile(tempFile.c_str());
   return true;
+#else
+  std::cout << "runing " << command << std::endl;
+  FILE* cpipe = popen(command, "r");
+  if(!cpipe)
+    {
+    return false;
+    }
+  fgets(buffer, BUFFER_SIZE, cpipe);
+  while(!feof(cpipe))
+    {
+    std::cout << buffer;
+    output += buffer;
+    fgets(buffer, BUFFER_SIZE, cpipe);
+    }
+  fclose(cpipe);
+#endif
 }
 
 #ifdef _MSC_VER

Source/cmUnixMakefileGenerator.cxx

@@ -46,14 +46,34 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "cmMakeDepend.h"
 #include "cmCacheManager.h"
 
+cmUnixMakefileGenerator::cmUnixMakefileGenerator()
+{
+  m_CacheOnly = false;
+  m_Recurse = false;
+}
+
 void cmUnixMakefileGenerator::GenerateMakefile()
 {
+  if(m_CacheOnly)
+    {
+    // Generate the cache only stuff
+    this->GenerateCacheOnly();
+    // if recurse then generate for all sub- makefiles
+    if(m_Recurse)
+      {
+      this->RecursiveGenerateCacheOnly();
+      }
+    }
+  // normal makefile output
+  else
+    {
     // Generate depends 
     cmMakeDepend md;
     md.SetMakefile(m_Makefile);
     md.DoDepends();
     // output the makefile fragment
     this->OutputMakefile("CMakeTargets.make"); 
+    }
 }
 
 
@@ -539,3 +559,76 @@ void cmUnixMakefileGenerator::OutputCustomRules(std::ostream& fout)
       }
     }  
 }
+
+
+void cmUnixMakefileGenerator::GenerateCacheOnly()
+{
+  
+  std::string source = m_Makefile->GetHomeDirectory();
+  source += "/CMake/CMakeMakefileTemplate.in";
+  cmSystemTools::MakeDirectory(m_Makefile->GetStartOutputDirectory());
+  std::string dest = m_Makefile->GetStartOutputDirectory();
+  dest += "/Makefile";
+  std::ofstream fout(dest.c_str());
+  std::cout << "cmake: creating : " << dest.c_str() << "\n";
+  if(!fout)
+    {
+    cmSystemTools::Error("Failed to open file for write " , dest.c_str());
+    }
+  else
+    {
+    if(strcmp(m_Makefile->GetHomeDirectory(), 
+              m_Makefile->GetHomeOutputDirectory()) == 0)
+      {
+      fout << "srcdir        = .\n\n";
+      }
+    else
+      {
+      fout << "srcdir        = " <<  m_Makefile->GetStartDirectory() << "\n";
+      fout << "VPATH         = " <<  m_Makefile->GetStartDirectory() << "\n";
+      }
+    }
+  fout << "include "
+       << m_Makefile->GetHomeOutputDirectory() << "/CMake/CMakeMaster.make\n";
+  dest = m_Makefile->GetStartOutputDirectory();
+  dest += "/CMakeTargets.make";
+  // make sure there is a CMakeTargets.make file as some
+  // makes require it to exist
+  if(!cmSystemTools::FileExists(dest.c_str()))
+    {
+    std::cout << "cmake: creating : " << dest.c_str() << "\n";
+    std::ofstream fout(dest.c_str());
+    if(!fout)
+      { 
+      cmSystemTools::Error("Failed to open file for write " , dest.c_str());
+      }
+    fout << "#Initial CMakeTargets.make file created only to keep \n";
+    fout << "#certain makes happy that don't like to include makefiles\n";
+    fout << "#that do not exist\n";
+    }
+}
+
+void cmUnixMakefileGenerator::RecursiveGenerateCacheOnly()
+{ 
+  std::vector<cmMakefile*> makefiles;
+  m_Makefile->FindSubDirectoryCMakeListsFiles(makefiles);
+  for(std::vector<cmMakefile*>::iterator i = makefiles.begin();
+      i != makefiles.end(); ++i)
+    {
+    cmMakefile* mf = *i;
+    if(m_Makefile->GetDefinition("RUN_CONFIGURE"))
+      {
+      mf->AddDefinition("RUN_CONFIGURE", true);
+      }
+    cmUnixMakefileGenerator* gen = new cmUnixMakefileGenerator;
+    gen->SetCacheOnlyOn();
+    gen->SetRecurseOff();
+    mf->SetMakefileGenerator(gen);
+    mf->GenerateMakefile();
+    }
+  // CLEAN up the makefiles created
+  for(unsigned int i =0; i < makefiles.size(); ++i)
+    {
+      delete makefiles[i];
+    }
+}

Source/cmUnixMakefileGenerator.h

@@ -53,6 +53,22 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 class cmUnixMakefileGenerator : public cmMakefileGenerator
 {
 public:
+  ///! Set cache only and recurse to false by default.
+  cmUnixMakefileGenerator();
+  
+  /**
+   * If cache only is on.
+   * and only stub makefiles are generated, and no depends, for speed.
+   * The default is OFF.
+   **/
+  void SetCacheOnlyOn()  {m_CacheOnly = true;}
+  void SetCacheOnlyOff()  {m_CacheOnly = false;}
+  /**
+   * If recurse is on, then all the makefiles below this one are parsed as well.
+   */
+  void SetRecurseOn() {m_Recurse = true;}
+  void SetRecurseOff() {m_Recurse = false;}
+  
   /**
    * Produce the makefile (in this case a Unix makefile).
    */
@@ -65,7 +81,9 @@ public:
    */
   void OutputObjectDepends(std::ostream&);
 
-protected:
+private:
+  void RecursiveGenerateCacheOnly();
+  void GenerateCacheOnly();
   void OutputMakefile(const char* file);
   void OutputMakeFlags(std::ostream&);
   void OutputVerbatim(std::ostream&);
@@ -76,6 +94,9 @@ protected:
   void OutputDependInformation(std::ostream&);
   void OutputDependencies(std::ostream&);
   void OutputCustomRules(std::ostream&);
+private:
+  bool m_CacheOnly;
+  bool m_Recurse;
 };
 
 #endif