Merge topic 'childEncoding'

f55fcdc8 CTest: Use UTF-8 encoding for output from Git
40bd42df Add Encoding option for RunChild, RunMakeCommand and RunProcess
595feb32 Windows: Encode child process output to internally-used encoding
96103972 Add cmProcessOutput class to be used for decoding text data
92c865b8 cmCTestBuildHandler: Use size_t in ProcessBuffer length argument

20 files changed, 489 insertions, 54 deletions

diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index 718b022..fcda6f9 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -330,6 +330,8 @@ set(SRCS
   cmOrderDirectories.h
   cmPolicies.h
   cmPolicies.cxx
+  cmProcessOutput.cxx
+  cmProcessOutput.h
   cmProcessTools.cxx
   cmProcessTools.h
   cmProperty.cxx
@@ -632,6 +634,9 @@ set(SRCS
   cm_codecvt.cxx
   )
 
+SET_PROPERTY(SOURCE cmProcessOutput.cxx APPEND PROPERTY COMPILE_DEFINITIONS
+  KWSYS_ENCODING_DEFAULT_CODEPAGE=${KWSYS_ENCODING_DEFAULT_CODEPAGE})
+
 # Kdevelop only works on UNIX and not windows
 if(UNIX)
   set(SRCS ${SRCS} cmGlobalKdevelopGenerator.cxx)
diff --git a/Source/CTest/cmCTestBuildHandler.cxx b/Source/CTest/cmCTestBuildHandler.cxx
index 7b4d994..a455908 100644
--- a/Source/CTest/cmCTestBuildHandler.cxx
+++ b/Source/CTest/cmCTestBuildHandler.cxx
@@ -7,6 +7,7 @@
 #include "cmFileTimeComparison.h"
 #include "cmGeneratedFileStream.h"
 #include "cmMakefile.h"
+#include "cmProcessOutput.h"
 #include "cmSystemTools.h"
 #include "cmXMLWriter.h"
 
@@ -765,7 +766,7 @@ void cmCTestBuildHandler::LaunchHelper::WriteScrapeMatchers(
 
 int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
                                         const char* dir, int timeout,
-                                        std::ostream& ofs)
+                                        std::ostream& ofs, Encoding encoding)
 {
   // First generate the command and arguments
   std::vector<std::string> args = cmSystemTools::ParseArguments(command);
@@ -809,6 +810,8 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
 
   char* data;
   int length;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   cmCTestOptionalLog(
     this->CTest, HANDLER_PROGRESS_OUTPUT, "   Each symbol represents "
       << tick_len << " bytes of output." << std::endl
@@ -842,13 +845,25 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
 
     // Process the chunk of data
     if (res == cmsysProcess_Pipe_STDERR) {
-      this->ProcessBuffer(data, length, tick, tick_len, ofs,
+      processOutput.DecodeText(data, length, strdata, 1);
+      this->ProcessBuffer(strdata.c_str(), strdata.size(), tick, tick_len, ofs,
                           &this->BuildProcessingErrorQueue);
     } else {
-      this->ProcessBuffer(data, length, tick, tick_len, ofs,
+      processOutput.DecodeText(data, length, strdata, 2);
+      this->ProcessBuffer(strdata.c_str(), strdata.size(), tick, tick_len, ofs,
                           &this->BuildProcessingQueue);
     }
   }
+  processOutput.DecodeText(std::string(), strdata, 1);
+  if (!strdata.empty()) {
+    this->ProcessBuffer(strdata.c_str(), strdata.size(), tick, tick_len, ofs,
+                        &this->BuildProcessingErrorQueue);
+  }
+  processOutput.DecodeText(std::string(), strdata, 2);
+  if (!strdata.empty()) {
+    this->ProcessBuffer(strdata.c_str(), strdata.size(), tick, tick_len, ofs,
+                        &this->BuildProcessingQueue);
+  }
 
   this->ProcessBuffer(CM_NULLPTR, 0, tick, tick_len, ofs,
                       &this->BuildProcessingQueue);
@@ -920,7 +935,7 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
 //######################################################################
 //######################################################################
 
-void cmCTestBuildHandler::ProcessBuffer(const char* data, int length,
+void cmCTestBuildHandler::ProcessBuffer(const char* data, size_t length,
                                         size_t& tick, size_t tick_len,
                                         std::ostream& ofs,
                                         t_BuildProcessingQueueType* queue)
diff --git a/Source/CTest/cmCTestBuildHandler.h b/Source/CTest/cmCTestBuildHandler.h
index 5bd1157..a2f6112 100644
--- a/Source/CTest/cmCTestBuildHandler.h
+++ b/Source/CTest/cmCTestBuildHandler.h
@@ -7,6 +7,7 @@
 
 #include "cmCTestGenericHandler.h"
 
+#include <cmProcessOutput.h>
 #include <cmsys/RegularExpression.hxx>
 #include <deque>
 #include <iosfwd>
@@ -25,6 +26,7 @@ class cmCTestBuildHandler : public cmCTestGenericHandler
 {
 public:
   typedef cmCTestGenericHandler Superclass;
+  typedef cmProcessOutput::Encoding Encoding;
 
   /*
    * The main entry point for this class
@@ -49,7 +51,8 @@ private:
   //! Run command specialized for make and configure. Returns process status
   // and retVal is return value or exception.
   int RunMakeCommand(const char* command, int* retVal, const char* dir,
-                     int timeout, std::ostream& ofs);
+                     int timeout, std::ostream& ofs,
+                     Encoding encoding = cmProcessOutput::Auto);
 
   enum
   {
@@ -107,7 +110,7 @@ private:
 
   typedef std::deque<char> t_BuildProcessingQueueType;
 
-  void ProcessBuffer(const char* data, int length, size_t& tick,
+  void ProcessBuffer(const char* data, size_t length, size_t& tick,
                      size_t tick_len, std::ostream& ofs,
                      t_BuildProcessingQueueType* queue);
   int ProcessSingleLine(const char* data);
diff --git a/Source/CTest/cmCTestGIT.cxx b/Source/CTest/cmCTestGIT.cxx
index 1bc1851..20512ea 100644
--- a/Source/CTest/cmCTestGIT.cxx
+++ b/Source/CTest/cmCTestGIT.cxx
@@ -91,7 +91,8 @@ std::string cmCTestGIT::FindGitDir()
   std::string git_dir_line;
   OneLineParser rev_parse_out(this, "rev-parse-out> ", git_dir_line);
   OutputLogger rev_parse_err(this->Log, "rev-parse-err> ");
-  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err)) {
+  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err, CM_NULLPTR,
+                     cmProcessOutput::UTF8)) {
     git_dir = git_dir_line;
   }
   if (git_dir.empty()) {
@@ -114,7 +115,8 @@ std::string cmCTestGIT::FindGitDir()
                                 0 };
       OneLineParser cygpath_out(this, "cygpath-out> ", git_dir_line);
       OutputLogger cygpath_err(this->Log, "cygpath-err> ");
-      if (this->RunChild(cygpath, &cygpath_out, &cygpath_err)) {
+      if (this->RunChild(cygpath, &cygpath_out, &cygpath_err, CM_NULLPTR,
+                         cmProcessOutput::UTF8)) {
         git_dir = git_dir_line;
       }
     }
@@ -134,7 +136,8 @@ std::string cmCTestGIT::FindTopDir()
   std::string cdup;
   OneLineParser rev_parse_out(this, "rev-parse-out> ", cdup);
   OutputLogger rev_parse_err(this->Log, "rev-parse-err> ");
-  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err) &&
+  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err, CM_NULLPTR,
+                     cmProcessOutput::UTF8) &&
       !cdup.empty()) {
     top_dir += "/";
     top_dir += cdup;
@@ -624,7 +627,7 @@ void cmCTestGIT::LoadRevisions()
 
   CommitParser out(this, "dt-out> ");
   OutputLogger err(this->Log, "dt-err> ");
-  this->RunProcess(cp, &out, &err);
+  this->RunProcess(cp, &out, &err, cmProcessOutput::UTF8);
 
   // Send one extra zero-byte to terminate the last record.
   out.Process("", 1);
@@ -641,14 +644,16 @@ void cmCTestGIT::LoadModifications()
                                      CM_NULLPTR };
   OutputLogger ui_out(this->Log, "ui-out> ");
   OutputLogger ui_err(this->Log, "ui-err> ");
-  this->RunChild(git_update_index, &ui_out, &ui_err);
+  this->RunChild(git_update_index, &ui_out, &ui_err, CM_NULLPTR,
+                 cmProcessOutput::UTF8);
 
   // Use 'git diff-index' to get modified files.
   const char* git_diff_index[] = { git,    "diff-index", "-z",
                                    "HEAD", "--",         CM_NULLPTR };
   DiffParser out(this, "di-out> ");
   OutputLogger err(this->Log, "di-err> ");
-  this->RunChild(git_diff_index, &out, &err);
+  this->RunChild(git_diff_index, &out, &err, CM_NULLPTR,
+                 cmProcessOutput::UTF8);
 
   for (std::vector<Change>::const_iterator ci = out.Changes.begin();
        ci != out.Changes.end(); ++ci) {
diff --git a/Source/CTest/cmCTestLaunch.cxx b/Source/CTest/cmCTestLaunch.cxx
index f7a6e0b..43c0fef 100644
--- a/Source/CTest/cmCTestLaunch.cxx
+++ b/Source/CTest/cmCTestLaunch.cxx
@@ -8,6 +8,7 @@
 #include "cmGeneratedFileStream.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmProcessOutput.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
 #include "cmXMLWriter.h"
@@ -225,17 +226,31 @@ void cmCTestLaunch::RunChild()
   if (!this->Passthru) {
     char* data = CM_NULLPTR;
     int length = 0;
+    cmProcessOutput processOutput;
+    std::string strdata;
     while (int p = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) {
       if (p == cmsysProcess_Pipe_STDOUT) {
-        fout.write(data, length);
-        std::cout.write(data, length);
+        processOutput.DecodeText(data, length, strdata, 1);
+        fout.write(strdata.c_str(), strdata.size());
+        std::cout.write(strdata.c_str(), strdata.size());
         this->HaveOut = true;
       } else if (p == cmsysProcess_Pipe_STDERR) {
-        ferr.write(data, length);
-        std::cerr.write(data, length);
+        processOutput.DecodeText(data, length, strdata, 2);
+        ferr.write(strdata.c_str(), strdata.size());
+        std::cerr.write(strdata.c_str(), strdata.size());
         this->HaveErr = true;
       }
     }
+    processOutput.DecodeText(std::string(), strdata, 1);
+    if (!strdata.empty()) {
+      fout.write(strdata.c_str(), strdata.size());
+      std::cout.write(strdata.c_str(), strdata.size());
+    }
+    processOutput.DecodeText(std::string(), strdata, 2);
+    if (!strdata.empty()) {
+      ferr.write(strdata.c_str(), strdata.size());
+      std::cerr.write(strdata.c_str(), strdata.size());
+    }
   }
 
   // Wait for the real command to finish.
diff --git a/Source/CTest/cmCTestSubmitHandler.cxx b/Source/CTest/cmCTestSubmitHandler.cxx
index 8383132..2b2d207 100644
--- a/Source/CTest/cmCTestSubmitHandler.cxx
+++ b/Source/CTest/cmCTestSubmitHandler.cxx
@@ -7,6 +7,7 @@
 #include "cmCTestScriptHandler.h"
 #include "cmCurl.h"
 #include "cmGeneratedFileStream.h"
+#include "cmProcessOutput.h"
 #include "cmState.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
@@ -784,10 +785,20 @@ bool cmCTestSubmitHandler::SubmitUsingSCP(const std::string& scp_command,
     cmsysProcess_Execute(cp);
     char* data;
     int length;
+    cmProcessOutput processOutput;
+    std::string strdata;
 
     while (cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) {
+      processOutput.DecodeText(data, length, strdata);
       cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
-                         cmCTestLogWrite(data, length), this->Quiet);
+                         cmCTestLogWrite(strdata.c_str(), strdata.size()),
+                         this->Quiet);
+    }
+    processOutput.DecodeText(std::string(), strdata);
+    if (!strdata.empty()) {
+      cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
+                         cmCTestLogWrite(strdata.c_str(), strdata.size()),
+                         this->Quiet);
     }
 
     cmsysProcess_WaitForExit(cp, CM_NULLPTR);
diff --git a/Source/CTest/cmCTestVC.cxx b/Source/CTest/cmCTestVC.cxx
index 7a2fa69..444c43d 100644
--- a/Source/CTest/cmCTestVC.cxx
+++ b/Source/CTest/cmCTestVC.cxx
@@ -76,7 +76,8 @@ bool cmCTestVC::InitialCheckout(const char* command)
 }
 
 bool cmCTestVC::RunChild(char const* const* cmd, OutputParser* out,
-                         OutputParser* err, const char* workDir)
+                         OutputParser* err, const char* workDir,
+                         Encoding encoding)
 {
   this->Log << this->ComputeCommandLine(cmd) << "\n";
 
@@ -84,7 +85,7 @@ bool cmCTestVC::RunChild(char const* const* cmd, OutputParser* out,
   cmsysProcess_SetCommand(cp, cmd);
   workDir = workDir ? workDir : this->SourceDirectory.c_str();
   cmsysProcess_SetWorkingDirectory(cp, workDir);
-  this->RunProcess(cp, out, err);
+  this->RunProcess(cp, out, err, encoding);
   int result = cmsysProcess_GetExitValue(cp);
   cmsysProcess_Delete(cp);
   return result == 0;
@@ -102,7 +103,7 @@ std::string cmCTestVC::ComputeCommandLine(char const* const* cmd)
 }
 
 bool cmCTestVC::RunUpdateCommand(char const* const* cmd, OutputParser* out,
-                                 OutputParser* err)
+                                 OutputParser* err, Encoding encoding)
 {
   // Report the command line.
   this->UpdateCommandLine = this->ComputeCommandLine(cmd);
@@ -112,7 +113,7 @@ bool cmCTestVC::RunUpdateCommand(char const* const* cmd, OutputParser* out,
   }
 
   // Run the command.
-  return this->RunChild(cmd, out, err);
+  return this->RunChild(cmd, out, err, CM_NULLPTR, encoding);
 }
 
 std::string cmCTestVC::GetNightlyTime()
diff --git a/Source/CTest/cmCTestVC.h b/Source/CTest/cmCTestVC.h
index 4f2bba0..dd8b973 100644
--- a/Source/CTest/cmCTestVC.h
+++ b/Source/CTest/cmCTestVC.h
@@ -116,11 +116,13 @@ protected:
 
   /** Run a command line and send output to given parsers.  */
   bool RunChild(char const* const* cmd, OutputParser* out, OutputParser* err,
-                const char* workDir = CM_NULLPTR);
+                const char* workDir = CM_NULLPTR,
+                Encoding encoding = cmProcessOutput::Auto);
 
   /** Run VC update command line and send output to given parsers.  */
   bool RunUpdateCommand(char const* const* cmd, OutputParser* out,
-                        OutputParser* err = CM_NULLPTR);
+                        OutputParser* err = CM_NULLPTR,
+                        Encoding encoding = cmProcessOutput::Auto);
 
   /** Write xml element for one file.  */
   void WriteXMLEntry(cmXMLWriter& xml, std::string const& path,
diff --git a/Source/CTest/cmProcess.cxx b/Source/CTest/cmProcess.cxx
index a24fe21..98bd3bb 100644
--- a/Source/CTest/cmProcess.cxx
+++ b/Source/CTest/cmProcess.cxx
@@ -3,6 +3,7 @@
 #include "cmProcess.h"
 
 #include <cmConfigure.h>
+#include <cmProcessOutput.h>
 #include <cmSystemTools.h>
 #include <iostream>
 
@@ -104,6 +105,8 @@ bool cmProcess::Buffer::GetLast(std::string& line)
 
 int cmProcess::GetNextOutputLine(std::string& line, double timeout)
 {
+  cmProcessOutput processOutput;
+  std::string strdata;
   for (;;) {
     // Look for lines already buffered.
     if (this->Output.GetLine(line)) {
@@ -118,12 +121,17 @@ int cmProcess::GetNextOutputLine(std::string& line, double timeout)
       return cmsysProcess_Pipe_Timeout;
     }
     if (p == cmsysProcess_Pipe_STDOUT) {
-      this->Output.insert(this->Output.end(), data, data + length);
+      processOutput.DecodeText(data, length, strdata);
+      this->Output.insert(this->Output.end(), strdata.begin(), strdata.end());
     } else { // p == cmsysProcess_Pipe_None
       // The process will provide no more data.
       break;
     }
   }
+  processOutput.DecodeText(std::string(), strdata);
+  if (!strdata.empty()) {
+    this->Output.insert(this->Output.end(), strdata.begin(), strdata.end());
+  }
 
   // Look for partial last lines.
   if (this->Output.GetLast(line)) {
diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index f35a0b3..1527b30 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -41,6 +41,7 @@
 #include "cmGeneratedFileStream.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmProcessOutput.h"
 #include "cmState.h"
 #include "cmStateSnapshot.h"
 #include "cmStateTypes.h"
@@ -960,7 +961,7 @@ int cmCTest::GetTestModelFromString(const char* str)
 
 int cmCTest::RunMakeCommand(const char* command, std::string& output,
                             int* retVal, const char* dir, int timeout,
-                            std::ostream& ofs)
+                            std::ostream& ofs, Encoding encoding)
 {
   // First generate the command and arguments
   std::vector<std::string> args = cmSystemTools::ParseArguments(command);
@@ -999,16 +1000,19 @@ int cmCTest::RunMakeCommand(const char* command, std::string& output,
 
   char* data;
   int length;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   cmCTestLog(this, HANDLER_PROGRESS_OUTPUT, "   Each . represents "
                << tick_len << " bytes of output" << std::endl
                << "    " << std::flush);
   while (cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) {
-    for (int cc = 0; cc < length; ++cc) {
-      if (data[cc] == 0) {
-        data[cc] = '\n';
+    processOutput.DecodeText(data, length, strdata);
+    for (size_t cc = 0; cc < strdata.size(); ++cc) {
+      if (strdata[cc] == 0) {
+        strdata[cc] = '\n';
       }
     }
-    output.append(data, length);
+    output.append(strdata);
     while (output.size() > (tick * tick_len)) {
       tick++;
       cmCTestLog(this, HANDLER_PROGRESS_OUTPUT, "." << std::flush);
@@ -1019,9 +1023,19 @@ int cmCTest::RunMakeCommand(const char* command, std::string& output,
                               << "    " << std::flush);
       }
     }
-    cmCTestLog(this, HANDLER_VERBOSE_OUTPUT, cmCTestLogWrite(data, length));
+    cmCTestLog(this, HANDLER_VERBOSE_OUTPUT,
+               cmCTestLogWrite(strdata.c_str(), strdata.size()));
+    if (ofs) {
+      ofs << cmCTestLogWrite(strdata.c_str(), strdata.size());
+    }
+  }
+  processOutput.DecodeText(std::string(), strdata);
+  if (!strdata.empty()) {
+    output.append(strdata);
+    cmCTestLog(this, HANDLER_VERBOSE_OUTPUT,
+               cmCTestLogWrite(strdata.c_str(), strdata.size()));
     if (ofs) {
-      ofs << cmCTestLogWrite(data, length);
+      ofs << cmCTestLogWrite(strdata.c_str(), strdata.size());
     }
   }
   cmCTestLog(this, HANDLER_PROGRESS_OUTPUT, " Size of output: "
@@ -1061,7 +1075,7 @@ int cmCTest::RunMakeCommand(const char* command, std::string& output,
 
 int cmCTest::RunTest(std::vector<const char*> argv, std::string* output,
                      int* retVal, std::ostream* log, double testTimeOut,
-                     std::vector<std::string>* environment)
+                     std::vector<std::string>* environment, Encoding encoding)
 {
   bool modifyEnv = (environment && !environment->empty());
 
@@ -1156,17 +1170,30 @@ int cmCTest::RunTest(std::vector<const char*> argv, std::string* output,
 
   char* data;
   int length;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   while (cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) {
+    processOutput.DecodeText(data, length, strdata);
     if (output) {
       tempOutput.insert(tempOutput.end(), data, data + length);
     }
-    cmCTestLog(this, HANDLER_VERBOSE_OUTPUT, cmCTestLogWrite(data, length));
+    cmCTestLog(this, HANDLER_VERBOSE_OUTPUT,
+               cmCTestLogWrite(strdata.c_str(), strdata.size()));
+    if (log) {
+      log->write(strdata.c_str(), strdata.size());
+    }
+  }
+  processOutput.DecodeText(std::string(), strdata);
+  if (!strdata.empty()) {
+    cmCTestLog(this, HANDLER_VERBOSE_OUTPUT,
+               cmCTestLogWrite(strdata.c_str(), strdata.size()));
     if (log) {
-      log->write(data, length);
+      log->write(strdata.c_str(), strdata.size());
     }
   }
 
   cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  processOutput.DecodeText(tempOutput, tempOutput);
   if (output && tempOutput.begin() != tempOutput.end()) {
     output->append(&*tempOutput.begin(), tempOutput.size());
   }
@@ -2496,7 +2523,7 @@ bool cmCTest::SetCTestConfigurationFromCMakeVariable(
 
 bool cmCTest::RunCommand(const char* command, std::string* stdOut,
                          std::string* stdErr, int* retVal, const char* dir,
-                         double timeout)
+                         double timeout, Encoding encoding)
 {
   std::vector<std::string> args = cmSystemTools::ParseArguments(command);
 
@@ -2527,6 +2554,8 @@ bool cmCTest::RunCommand(const char* command, std::string* stdOut,
   std::vector<char> tempError;
   char* data;
   int length;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   int res;
   bool done = false;
   while (!done) {
@@ -2543,15 +2572,24 @@ bool cmCTest::RunCommand(const char* command, std::string* stdOut,
     }
     if ((res == cmsysProcess_Pipe_STDOUT || res == cmsysProcess_Pipe_STDERR) &&
         this->ExtraVerbose) {
-      cmSystemTools::Stdout(data, length);
+      processOutput.DecodeText(data, length, strdata);
+      cmSystemTools::Stdout(strdata.c_str(), strdata.size());
+    }
+  }
+  if (this->ExtraVerbose) {
+    processOutput.DecodeText(std::string(), strdata);
+    if (!strdata.empty()) {
+      cmSystemTools::Stdout(strdata.c_str(), strdata.size());
     }
   }
 
   cmsysProcess_WaitForExit(cp, CM_NULLPTR);
   if (!tempOutput.empty()) {
+    processOutput.DecodeText(tempOutput, tempOutput);
     stdOut->append(&*tempOutput.begin(), tempOutput.size());
   }
   if (!tempError.empty()) {
+    processOutput.DecodeText(tempError, tempError);
     stdErr->append(&*tempError.begin(), tempError.size());
   }
 
diff --git a/Source/cmCTest.h b/Source/cmCTest.h
index e5b4728..4436327 100644
--- a/Source/cmCTest.h
+++ b/Source/cmCTest.h
@@ -5,6 +5,7 @@
 
 #include <cmConfigure.h>
 
+#include <cmProcessOutput.h>
 #include <cmsys/String.hxx>
 #include <map>
 #include <set>
@@ -48,6 +49,7 @@ class cmCTest
   friend class cmCTestMultiProcessHandler;
 
 public:
+  typedef cmProcessOutput::Encoding Encoding;
   /** Enumerate parts of the testing and submission process.  */
   enum Part
   {
@@ -267,7 +269,8 @@ public:
    */
   bool RunCommand(const char* command, std::string* stdOut,
                   std::string* stdErr, int* retVal = CM_NULLPTR,
-                  const char* dir = CM_NULLPTR, double timeout = 0.0);
+                  const char* dir = CM_NULLPTR, double timeout = 0.0,
+                  Encoding encoding = cmProcessOutput::Auto);
 
   /**
    * Clean/make safe for xml the given value such that it may be used as
@@ -286,7 +289,8 @@ public:
    * and retVal is return value or exception.
    */
   int RunMakeCommand(const char* command, std::string& output, int* retVal,
-                     const char* dir, int timeout, std::ostream& ofs);
+                     const char* dir, int timeout, std::ostream& ofs,
+                     Encoding encoding = cmProcessOutput::Auto);
 
   /** Return the current tag */
   std::string GetCurrentTag();
@@ -333,7 +337,8 @@ public:
    */
   int RunTest(std::vector<const char*> args, std::string* output, int* retVal,
               std::ostream* logfile, double testTimeOut,
-              std::vector<std::string>* environment);
+              std::vector<std::string>* environment,
+              Encoding encoding = cmProcessOutput::Auto);
 
   /**
    * Execute handler and return its result. If the handler fails, it returns
diff --git a/Source/cmExecProgramCommand.cxx b/Source/cmExecProgramCommand.cxx
index df92592..6a7292d 100644
--- a/Source/cmExecProgramCommand.cxx
+++ b/Source/cmExecProgramCommand.cxx
@@ -6,6 +6,7 @@
 #include <stdio.h>
 
 #include "cmMakefile.h"
+#include "cmProcessOutput.h"
 #include "cmSystemTools.h"
 
 class cmExecutionStatus;
@@ -116,7 +117,7 @@ bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args,
 
 bool cmExecProgramCommand::RunCommand(const char* command, std::string& output,
                                       int& retVal, const char* dir,
-                                      bool verbose)
+                                      bool verbose, Encoding encoding)
 {
   if (cmSystemTools::GetRunCommandOutput()) {
     verbose = false;
@@ -214,17 +215,28 @@ bool cmExecProgramCommand::RunCommand(const char* command, std::string& output,
   int length;
   char* data;
   int p;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   while ((p = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR), p)) {
     if (p == cmsysProcess_Pipe_STDOUT || p == cmsysProcess_Pipe_STDERR) {
       if (verbose) {
-        cmSystemTools::Stdout(data, length);
+        processOutput.DecodeText(data, length, strdata);
+        cmSystemTools::Stdout(strdata.c_str(), strdata.size());
       }
       output.append(data, length);
     }
   }
 
+  if (verbose) {
+    processOutput.DecodeText(std::string(), strdata);
+    if (!strdata.empty()) {
+      cmSystemTools::Stdout(strdata.c_str(), strdata.size());
+    }
+  }
+
   // All output has been read.  Wait for the process to exit.
   cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  processOutput.DecodeText(output, output);
 
   // Check the result of running the process.
   std::string msg;
diff --git a/Source/cmExecProgramCommand.h b/Source/cmExecProgramCommand.h
index 7cdf777..58e948e 100644
--- a/Source/cmExecProgramCommand.h
+++ b/Source/cmExecProgramCommand.h
@@ -8,6 +8,7 @@
 #include <vector>
 
 #include "cmCommand.h"
+#include "cmProcessOutput.h"
 
 class cmExecutionStatus;
 
@@ -21,6 +22,7 @@ class cmExecutionStatus;
 class cmExecProgramCommand : public cmCommand
 {
 public:
+  typedef cmProcessOutput::Encoding Encoding;
   /**
    * This is a virtual constructor for the command.
    */
@@ -46,7 +48,8 @@ public:
 private:
   static bool RunCommand(const char* command, std::string& output, int& retVal,
                          const char* directory = CM_NULLPTR,
-                         bool verbose = true);
+                         bool verbose = true,
+                         Encoding encoding = cmProcessOutput::Auto);
 };
 
 #endif
diff --git a/Source/cmExecuteProcessCommand.cxx b/Source/cmExecuteProcessCommand.cxx
index c8a3a84..1562223 100644
--- a/Source/cmExecuteProcessCommand.cxx
+++ b/Source/cmExecuteProcessCommand.cxx
@@ -8,6 +8,7 @@
 #include <stdio.h>
 
 #include "cmMakefile.h"
+#include "cmProcessOutput.h"
 #include "cmSystemTools.h"
 
 class cmExecutionStatus;
@@ -222,25 +223,43 @@ bool cmExecuteProcessCommand::InitialPass(std::vector<std::string> const& args,
   int length;
   char* data;
   int p;
+  cmProcessOutput processOutput;
+  std::string strdata;
   while ((p = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR), p)) {
     // Put the output in the right place.
     if (p == cmsysProcess_Pipe_STDOUT && !output_quiet) {
       if (output_variable.empty()) {
-        cmSystemTools::Stdout(data, length);
+        processOutput.DecodeText(data, length, strdata, 1);
+        cmSystemTools::Stdout(strdata.c_str(), strdata.size());
       } else {
         cmExecuteProcessCommandAppend(tempOutput, data, length);
       }
     } else if (p == cmsysProcess_Pipe_STDERR && !error_quiet) {
       if (error_variable.empty()) {
-        cmSystemTools::Stderr(data, length);
+        processOutput.DecodeText(data, length, strdata, 2);
+        cmSystemTools::Stderr(strdata.c_str(), strdata.size());
       } else {
         cmExecuteProcessCommandAppend(tempError, data, length);
       }
     }
   }
+  if (!output_quiet && output_variable.empty()) {
+    processOutput.DecodeText(std::string(), strdata, 1);
+    if (!strdata.empty()) {
+      cmSystemTools::Stdout(strdata.c_str(), strdata.size());
+    }
+  }
+  if (!error_quiet && error_variable.empty()) {
+    processOutput.DecodeText(std::string(), strdata, 2);
+    if (!strdata.empty()) {
+      cmSystemTools::Stderr(strdata.c_str(), strdata.size());
+    }
+  }
 
   // All output has been read.  Wait for the process to exit.
   cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  processOutput.DecodeText(tempOutput, tempOutput);
+  processOutput.DecodeText(tempError, tempError);
 
   // Fix the text in the output strings.
   cmExecuteProcessCommandFixText(tempOutput, output_strip_trailing_whitespace);
diff --git a/Source/cmProcessOutput.cxx b/Source/cmProcessOutput.cxx
new file mode 100644
index 0000000..1440223
--- /dev/null
+++ b/Source/cmProcessOutput.cxx
@@ -0,0 +1,155 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+
+#include "cmProcessOutput.h"
+
+#if defined(_WIN32)
+#include <windows.h>
+unsigned int cmProcessOutput::defaultCodepage =
+  KWSYS_ENCODING_DEFAULT_CODEPAGE;
+#endif
+
+cmProcessOutput::cmProcessOutput(Encoding encoding, unsigned int maxSize)
+{
+#if defined(_WIN32)
+  codepage = 0;
+  bufferSize = maxSize;
+  if (encoding == None) {
+    codepage = defaultCodepage;
+  } else if (encoding == Auto) {
+    codepage = GetConsoleCP();
+  } else if (encoding == UTF8) {
+    codepage = CP_UTF8;
+  } else if (encoding == OEM) {
+    codepage = GetOEMCP();
+  }
+  if (!codepage || encoding == ANSI) {
+    codepage = GetACP();
+  }
+#else
+  static_cast<void>(encoding);
+  static_cast<void>(maxSize);
+#endif
+}
+
+cmProcessOutput::~cmProcessOutput()
+{
+}
+
+bool cmProcessOutput::DecodeText(std::string raw, std::string& decoded,
+                                 size_t id)
+{
+  bool success = true;
+  decoded = raw;
+#if defined(_WIN32)
+  if (id > 0) {
+    if (rawparts.size() < id) {
+      rawparts.reserve(id);
+      while (rawparts.size() < id)
+        rawparts.push_back(std::string());
+    }
+    raw = rawparts[id - 1] + raw;
+    rawparts[id - 1].clear();
+    decoded = raw;
+  }
+  if (raw.size() > 0 && codepage != defaultCodepage) {
+    success = false;
+    CPINFOEXW cpinfo;
+    if (id > 0 && bufferSize > 0 && raw.size() == bufferSize &&
+        GetCPInfoExW(codepage, 0, &cpinfo) == 1 && cpinfo.MaxCharSize > 1) {
+      if (cpinfo.MaxCharSize == 2 && cpinfo.LeadByte[0] != 0) {
+        LPSTR prevChar =
+          CharPrevExA(codepage, raw.c_str(), raw.c_str() + raw.size(), 0);
+        bool isLeadByte =
+          (*(prevChar + 1) == 0) && IsDBCSLeadByteEx(codepage, *prevChar);
+        if (isLeadByte) {
+          rawparts[id - 1] += *(raw.end() - 1);
+          raw.resize(raw.size() - 1);
+        }
+        success = DoDecodeText(raw, decoded, NULL);
+      } else {
+        bool restoreDecoded = false;
+        std::string firstDecoded = decoded;
+        wchar_t lastChar = 0;
+        for (UINT i = 0; i < cpinfo.MaxCharSize; i++) {
+          success = DoDecodeText(raw, decoded, &lastChar);
+          if (success && lastChar != 0) {
+            if (i == 0) {
+              firstDecoded = decoded;
+            }
+            if (lastChar == cpinfo.UnicodeDefaultChar) {
+              restoreDecoded = true;
+              rawparts[id - 1] = *(raw.end() - 1) + rawparts[id - 1];
+              raw.resize(raw.size() - 1);
+            } else {
+              restoreDecoded = false;
+              break;
+            }
+          } else {
+            break;
+          }
+        }
+        if (restoreDecoded) {
+          decoded = firstDecoded;
+          rawparts[id - 1].clear();
+        }
+      }
+    } else {
+      success = DoDecodeText(raw, decoded, NULL);
+    }
+  }
+#else
+  static_cast<void>(id);
+#endif
+  return success;
+}
+
+bool cmProcessOutput::DecodeText(const char* data, size_t length,
+                                 std::string& decoded, size_t id)
+{
+  return DecodeText(std::string(data, length), decoded, id);
+}
+
+bool cmProcessOutput::DecodeText(std::vector<char> raw,
+                                 std::vector<char>& decoded, size_t id)
+{
+  std::string str;
+  const bool success =
+    DecodeText(std::string(raw.begin(), raw.end()), str, id);
+  decoded.assign(str.begin(), str.end());
+  return success;
+}
+
+#if defined(_WIN32)
+bool cmProcessOutput::DoDecodeText(std::string raw, std::string& decoded,
+                                   wchar_t* lastChar)
+{
+  bool success = false;
+  const int wlength =
+    MultiByteToWideChar(codepage, 0, raw.c_str(), int(raw.size()), NULL, 0);
+  wchar_t* wdata = new wchar_t[wlength];
+  int r = MultiByteToWideChar(codepage, 0, raw.c_str(), int(raw.size()), wdata,
+                              wlength);
+  if (r > 0) {
+    if (lastChar) {
+      *lastChar = 0;
+      if ((wlength >= 2 && wdata[wlength - 2] != wdata[wlength - 1]) ||
+          wlength >= 1) {
+        *lastChar = wdata[wlength - 1];
+      }
+    }
+    int length = WideCharToMultiByte(defaultCodepage, 0, wdata, wlength, NULL,
+                                     0, NULL, NULL);
+    char* data = new char[length];
+    r = WideCharToMultiByte(defaultCodepage, 0, wdata, wlength, data, length,
+                            NULL, NULL);
+    if (r > 0) {
+      decoded = std::string(data, length);
+      success = true;
+    }
+    delete[] data;
+  }
+  delete[] wdata;
+  return success;
+}
+#endif
diff --git a/Source/cmProcessOutput.h b/Source/cmProcessOutput.h
new file mode 100644
index 0000000..d7a5e98
--- /dev/null
+++ b/Source/cmProcessOutput.h
@@ -0,0 +1,80 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmProcessOutput_h
+#define cmProcessOutput_h
+
+#include <cmConfigure.h> // IWYU pragma: keep
+
+#include <string>
+#include <vector>
+
+/** \class cmProcessOutput
+ * \brief Decode text data to internal encoding.
+ *
+ * cmProcessOutput is used to decode text output from external process
+ * using external encoding to our internal encoding.
+ */
+class cmProcessOutput
+{
+public:
+  enum Encoding
+  {
+    None,
+    Auto,
+    UTF8,
+    ANSI,
+    OEM
+  };
+
+  /// The code page that is used as internal encoding to which we will encode.
+  static unsigned int defaultCodepage;
+
+  /**
+   * A class constructor.
+   * \param encoding external process encoding from which we will decode.
+   * \param maxSize a maximal size for process output buffer. It should match
+   * to KWSYSPE_PIPE_BUFFER_SIZE. If text we decode is same size as \a maxSize
+   * then we will check for incomplete character at end of buffer and
+   * we will not return last incomplete character. This character will be
+   * returned with next DecodeText() call. To disable this behavior specify
+   * 0 as \a maxSize.
+   */
+  cmProcessOutput(Encoding encoding = Auto, unsigned int maxSize = 1024);
+  ~cmProcessOutput();
+  /**
+   * Decode \a raw string using external encoding to internal
+   * encoding in \a decoded.
+   * \a id specifies which internal buffer to use. This is important when we
+   * are decoding both stdout and stderr from process output and we need to
+   * keep incomplete characters in separate buffers for each stream.
+   * \return true if successfully decoded \a raw to \a decoded or false if not.
+   */
+  bool DecodeText(std::string raw, std::string& decoded, size_t id = 0);
+  /**
+   * Decode \a data with \a length from external encoding to internal
+   * encoding in \a decoded.
+   * \param data a pointer to process output text data.
+   * \param length a size of data buffer.
+   * \param decoded a string which will contain decoded text.
+   * \param id an internal buffer id to use.
+   * \return true if successfully decoded \a data to \a decoded or false if
+   * not.
+   */
+  bool DecodeText(const char* data, size_t length, std::string& decoded,
+                  size_t id = 0);
+  /**
+   * \overload
+   */
+  bool DecodeText(std::vector<char> raw, std::vector<char>& decoded,
+                  size_t id = 0);
+
+private:
+#if defined(_WIN32)
+  unsigned int codepage;
+  unsigned int bufferSize;
+  std::vector<std::string> rawparts;
+  bool DoDecodeText(std::string raw, std::string& decoded, wchar_t* lastChar);
+#endif
+};
+
+#endif
diff --git a/Source/cmProcessTools.cxx b/Source/cmProcessTools.cxx
index e7b6051..b756650 100644
--- a/Source/cmProcessTools.cxx
+++ b/Source/cmProcessTools.cxx
@@ -1,29 +1,46 @@
 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmProcessTools.h"
+#include "cmProcessOutput.h"
 
 #include <cmsys/Process.h>
 #include <ostream>
 
 void cmProcessTools::RunProcess(struct cmsysProcess_s* cp, OutputParser* out,
-                                OutputParser* err)
+                                OutputParser* err, Encoding encoding)
 {
   cmsysProcess_Execute(cp);
   char* data = CM_NULLPTR;
   int length = 0;
   int p;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   while ((out || err) &&
          (p = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR), p)) {
     if (out && p == cmsysProcess_Pipe_STDOUT) {
-      if (!out->Process(data, length)) {
+      processOutput.DecodeText(data, length, strdata, 1);
+      if (!out->Process(strdata.c_str(), int(strdata.size()))) {
         out = CM_NULLPTR;
       }
     } else if (err && p == cmsysProcess_Pipe_STDERR) {
-      if (!err->Process(data, length)) {
+      processOutput.DecodeText(data, length, strdata, 2);
+      if (!err->Process(strdata.c_str(), int(strdata.size()))) {
         err = CM_NULLPTR;
       }
     }
   }
+  if (out) {
+    processOutput.DecodeText(std::string(), strdata, 1);
+    if (!strdata.empty()) {
+      out->Process(strdata.c_str(), int(strdata.size()));
+    }
+  }
+  if (err) {
+    processOutput.DecodeText(std::string(), strdata, 2);
+    if (!strdata.empty()) {
+      out->Process(strdata.c_str(), int(strdata.size()));
+    }
+  }
   cmsysProcess_WaitForExit(cp, CM_NULLPTR);
 }
 
diff --git a/Source/cmProcessTools.h b/Source/cmProcessTools.h
index e5a3fe9..df131b9 100644
--- a/Source/cmProcessTools.h
+++ b/Source/cmProcessTools.h
@@ -3,6 +3,7 @@
 #ifndef cmProcessTools_h
 #define cmProcessTools_h
 
+#include "cmProcessOutput.h"
 #include <cmConfigure.h>
 
 #include <iosfwd>
@@ -16,6 +17,7 @@
 class cmProcessTools
 {
 public:
+  typedef cmProcessOutput::Encoding Encoding;
   /** Abstract interface for process output parsers.  */
   class OutputParser
   {
@@ -79,7 +81,8 @@ public:
 
   /** Run a process and send output to given parsers.  */
   static void RunProcess(struct cmsysProcess_s* cp, OutputParser* out,
-                         OutputParser* err = CM_NULLPTR);
+                         OutputParser* err = CM_NULLPTR,
+                         Encoding encoding = cmProcessOutput::Auto);
 };
 
 #endif
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 7738ab6..029594f 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -3,6 +3,7 @@
 #include "cmSystemTools.h"
 
 #include "cmAlgorithms.h"
+#include "cmProcessOutput.h"
 
 #if defined(CMAKE_BUILD_WITH_CMAKE)
 #include "cmArchiveWrite.h"
@@ -573,7 +574,7 @@ bool cmSystemTools::RunSingleCommand(std::vector<std::string> const& command,
                                      std::string* captureStdOut,
                                      std::string* captureStdErr, int* retVal,
                                      const char* dir, OutputOption outputflag,
-                                     double timeout)
+                                     double timeout, Encoding encoding)
 {
   std::vector<const char*> argv;
   for (std::vector<std::string>::const_iterator a = command.begin();
@@ -609,6 +610,8 @@ bool cmSystemTools::RunSingleCommand(std::vector<std::string> const& command,
   char* data;
   int length;
   int pipe;
+  cmProcessOutput processOutput(encoding);
+  std::string strdata;
   if (outputflag != OUTPUT_PASSTHROUGH &&
       (captureStdOut || captureStdErr || outputflag != OUTPUT_NONE)) {
     while ((pipe = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) >
@@ -624,28 +627,44 @@ bool cmSystemTools::RunSingleCommand(std::vector<std::string> const& command,
 
       if (pipe == cmsysProcess_Pipe_STDOUT) {
         if (outputflag != OUTPUT_NONE) {
-          cmSystemTools::Stdout(data, length);
+          processOutput.DecodeText(data, length, strdata, 1);
+          cmSystemTools::Stdout(strdata.c_str(), strdata.size());
         }
         if (captureStdOut) {
           tempStdOut.insert(tempStdOut.end(), data, data + length);
         }
       } else if (pipe == cmsysProcess_Pipe_STDERR) {
         if (outputflag != OUTPUT_NONE) {
-          cmSystemTools::Stderr(data, length);
+          processOutput.DecodeText(data, length, strdata, 2);
+          cmSystemTools::Stderr(strdata.c_str(), strdata.size());
         }
         if (captureStdErr) {
           tempStdErr.insert(tempStdErr.end(), data, data + length);
         }
       }
     }
+
+    if (outputflag != OUTPUT_NONE) {
+      processOutput.DecodeText(std::string(), strdata, 1);
+      if (!strdata.empty()) {
+        cmSystemTools::Stdout(strdata.c_str(), strdata.size());
+      }
+      processOutput.DecodeText(std::string(), strdata, 2);
+      if (!strdata.empty()) {
+        cmSystemTools::Stderr(strdata.c_str(), strdata.size());
+      }
+    }
   }
 
   cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+
   if (captureStdOut) {
     captureStdOut->assign(tempStdOut.begin(), tempStdOut.end());
+    processOutput.DecodeText(*captureStdOut, *captureStdOut);
   }
   if (captureStdErr) {
     captureStdErr->assign(tempStdErr.begin(), tempStdErr.end());
+    processOutput.DecodeText(*captureStdErr, *captureStdErr);
   }
 
   bool result = true;
@@ -1643,6 +1662,8 @@ int cmSystemTools::WaitForLine(cmsysProcess* process, std::string& line,
   line = "";
   std::vector<char>::iterator outiter = out.begin();
   std::vector<char>::iterator erriter = err.begin();
+  cmProcessOutput processOutput;
+  std::string strdata;
   while (1) {
     // Check for a newline in stdout.
     for (; outiter != out.end(); ++outiter) {
@@ -1687,17 +1708,31 @@ int cmSystemTools::WaitForLine(cmsysProcess* process, std::string& line,
       return pipe;
     }
     if (pipe == cmsysProcess_Pipe_STDOUT) {
+      processOutput.DecodeText(data, length, strdata, 1);
       // Append to the stdout buffer.
       std::vector<char>::size_type size = out.size();
-      out.insert(out.end(), data, data + length);
+      out.insert(out.end(), strdata.begin(), strdata.end());
       outiter = out.begin() + size;
     } else if (pipe == cmsysProcess_Pipe_STDERR) {
+      processOutput.DecodeText(data, length, strdata, 2);
       // Append to the stderr buffer.
       std::vector<char>::size_type size = err.size();
-      err.insert(err.end(), data, data + length);
+      err.insert(err.end(), strdata.begin(), strdata.end());
       erriter = err.begin() + size;
     } else if (pipe == cmsysProcess_Pipe_None) {
       // Both stdout and stderr pipes have broken.  Return leftover data.
+      processOutput.DecodeText(std::string(), strdata, 1);
+      if (!strdata.empty()) {
+        std::vector<char>::size_type size = out.size();
+        out.insert(out.end(), strdata.begin(), strdata.end());
+        outiter = out.begin() + size;
+      }
+      processOutput.DecodeText(std::string(), strdata, 2);
+      if (!strdata.empty()) {
+        std::vector<char>::size_type size = err.size();
+        err.insert(err.end(), strdata.begin(), strdata.end());
+        erriter = err.begin() + size;
+      }
       if (!out.empty()) {
         line.append(&out[0], outiter - out.begin());
         out.erase(out.begin(), out.end());
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 0801f26..10e8280 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -5,6 +5,7 @@
 
 #include <cmConfigure.h> // IWYU pragma: keep
 
+#include <cmProcessOutput.h>
 #include <cmsys/Process.h>
 #include <cmsys/SystemTools.hxx>
 #include <stddef.h>
@@ -29,6 +30,7 @@ class cmSystemTools : public cmsys::SystemTools
 {
 public:
   typedef cmsys::SystemTools Superclass;
+  typedef cmProcessOutput::Encoding Encoding;
 
   /** Expand out any arguments in the vector that have ; separated
    *  strings into multiple arguments.  A new vector is created
@@ -239,7 +241,8 @@ public:
                                int* retVal = CM_NULLPTR,
                                const char* dir = CM_NULLPTR,
                                OutputOption outputflag = OUTPUT_MERGE,
-                               double timeout = 0.0);
+                               double timeout = 0.0,
+                               Encoding encoding = cmProcessOutput::Auto);
 
   static std::string PrintSingleCommand(std::vector<std::string> const&);