1 files changed, 93 insertions, 8 deletions

diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 67f302391..9ec49382a 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -638,6 +638,12 @@ bool cmSystemTools::RunSingleCommand(std::vector<cmStdString>const& command,
     cmsysProcess_SetOption(cp, cmsysProcess_Option_HideWindow, 1);
     }
 
+  if (outputflag == OUTPUT_PASSTHROUGH)
+    {
+    cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDOUT, 1);
+    cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDERR, 1);
+    }
+
   cmsysProcess_SetTimeout(cp, timeout);
   cmsysProcess_Execute(cp);
 
@@ -645,7 +651,7 @@ bool cmSystemTools::RunSingleCommand(std::vector<cmStdString>const& command,
   char* data;
   int length;
   int pipe;
-  if ( output || outputflag != OUTPUT_NONE )
+  if(outputflag != OUTPUT_PASSTHROUGH && (output || outputflag != OUTPUT_NONE))
     {
     while((pipe = cmsysProcess_WaitForData(cp, &data, &length, 0)) > 0)
       {
@@ -1594,6 +1600,40 @@ std::string cmSystemTools::RelativePath(const char* local, const char* remote)
   return cmsys::SystemTools::RelativePath(local, remote);
 }
 
+std::string cmSystemTools::CollapseCombinedPath(std::string const& dir,
+                                                std::string const& file)
+{
+  if(dir.empty() || dir == ".")
+    {
+    return file;
+    }
+
+  std::vector<std::string> dirComponents;
+  std::vector<std::string> fileComponents;
+  cmSystemTools::SplitPath(dir.c_str(), dirComponents);
+  cmSystemTools::SplitPath(file.c_str(), fileComponents);
+
+  if(fileComponents.empty())
+    {
+    return dir;
+    }
+  if(fileComponents[0] != "")
+    {
+    // File is not a relative path.
+    return file;
+    }
+
+  std::vector<std::string>::iterator i = fileComponents.begin()+1;
+  while(i != fileComponents.end() && *i == ".." && dirComponents.size() > 1)
+    {
+    ++i; // Remove ".." file component.
+    dirComponents.pop_back(); // Remove last dir component.
+    }
+
+  dirComponents.insert(dirComponents.end(), i, fileComponents.end());
+  return cmSystemTools::JoinPath(dirComponents);
+}
+
 #ifdef CMAKE_BUILD_WITH_CMAKE
 //----------------------------------------------------------------------
 bool cmSystemTools::UnsetEnv(const char* value)
@@ -1662,6 +1702,7 @@ cmSystemTools::SaveRestoreEnvironment::~SaveRestoreEnvironment()
 
 void cmSystemTools::EnableVSConsoleOutput()
 {
+#ifdef _WIN32
   // Visual Studio 8 2005 (devenv.exe or VCExpress.exe) will not
   // display output to the console unless this environment variable is
   // set.  We need it to capture the output of these build tools.
@@ -1669,8 +1710,15 @@ void cmSystemTools::EnableVSConsoleOutput()
   // either of these executables where NAME is created with
   // CreateNamedPipe.  This would bypass the internal buffering of the
   // output and allow it to be captured on the fly.
-#ifdef _WIN32
   cmSystemTools::PutEnv("vsconsoleoutput=1");
+
+# ifdef CMAKE_BUILD_WITH_CMAKE
+  // VS sets an environment variable to tell MS tools like "cl" to report
+  // output through a backdoor pipe instead of stdout/stderr.  Unset the
+  // environment variable to close this backdoor for any path of process
+  // invocations that passes through CMake so we can capture the output.
+  cmSystemTools::UnsetEnv("VS_UNICODE_OUTPUT");
+# endif
 #endif
 }
 
@@ -1951,7 +1999,7 @@ bool extract_tar(const char* outFileName, bool verbose,
         {
         cmSystemTools::Error("Problem with archive_write_header(): ",
                              archive_error_string(ext));
-        cmSystemTools::Error("Current file:",
+        cmSystemTools::Error("Current file: ",
                              archive_entry_pathname(entry));
         break;
         }
@@ -2413,6 +2461,38 @@ bool cmSystemTools::GuessLibrarySOName(std::string const& fullPath,
 }
 
 //----------------------------------------------------------------------------
+bool cmSystemTools::GuessLibraryInstallName(std::string const& fullPath,
+                                       std::string& soname)
+{
+  std::vector<cmStdString> cmds;
+  cmds.push_back("otool");
+  cmds.push_back("-D");
+  cmds.push_back(fullPath.c_str());
+
+  std::string output;
+  if(!RunSingleCommand(cmds, &output, 0, 0, OUTPUT_NONE))
+    {
+    cmds.insert(cmds.begin(), "-r");
+    cmds.insert(cmds.begin(), "xcrun");
+    if(!RunSingleCommand(cmds, &output, 0, 0, OUTPUT_NONE))
+      {
+      return false;
+      }
+    }
+
+  std::vector<std::string> strs = cmSystemTools::tokenize(output, "\n");
+  // otool returns extra lines reporting multiple install names
+  // in case the binary is multi-arch and none of the architectures
+  // is native (e.g. i386;ppc on x86_64)
+  if(strs.size() >= 2)
+    {
+    soname = strs[1];
+    return true;
+    }
+  return false;
+}
+
+//----------------------------------------------------------------------------
 #if defined(CMAKE_USE_ELF_PARSER)
 std::string::size_type cmSystemToolsFindRPath(std::string const& have,
                                               std::string const& want)
@@ -2659,13 +2739,18 @@ bool cmSystemTools::ChangeRPath(std::string const& file,
 bool cmSystemTools::VersionCompare(cmSystemTools::CompareOp op,
                                    const char* lhss, const char* rhss)
 {
-  unsigned int lhs[4] = {0,0,0,0};
-  unsigned int rhs[4] = {0,0,0,0};
-  sscanf(lhss, "%u.%u.%u.%u", &lhs[0], &lhs[1], &lhs[2], &lhs[3]);
-  sscanf(rhss, "%u.%u.%u.%u", &rhs[0], &rhs[1], &rhs[2], &rhs[3]);
+  // Parse out up to 8 components.
+  unsigned int lhs[8] = {0,0,0,0,0,0,0,0};
+  unsigned int rhs[8] = {0,0,0,0,0,0,0,0};
+  sscanf(lhss, "%u.%u.%u.%u.%u.%u.%u.%u",
+         &lhs[0], &lhs[1], &lhs[2], &lhs[3],
+         &lhs[4], &lhs[5], &lhs[6], &lhs[7]);
+  sscanf(rhss, "%u.%u.%u.%u.%u.%u.%u.%u",
+         &rhs[0], &rhs[1], &rhs[2], &rhs[3],
+         &rhs[4], &rhs[5], &rhs[6], &rhs[7]);
 
   // Do component-wise comparison.
-  for(unsigned int i=0; i < 4; ++i)
+  for(unsigned int i=0; i < 8; ++i)
     {
     if(lhs[i] < rhs[i])
       {