diff --git a/Source/CPack/cpack.cxx b/Source/CPack/cpack.cxx
index 2aa599131..ad37c4230 100644
--- a/Source/CPack/cpack.cxx
+++ b/Source/CPack/cpack.cxx
@@ -26,6 +26,7 @@
 #include <cmsys/CommandLineArguments.hxx>
 #include <cmsys/SystemTools.hxx>
 #include <cmsys/Encoding.hxx>
+#include <locale.h>
 
 //----------------------------------------------------------------------------
 static const char * cmDocumentationName[][2] =
@@ -100,6 +101,7 @@ int cpackDefinitionArgument(const char* argument, const char* cValue,
 // this is CPack.
 int main (int argc, char const* const* argv)
 {
+  setlocale(LC_ALL, "");
   cmsys::Encoding::CommandLineArguments args =
     cmsys::Encoding::CommandLineArguments::Main(argc, argv);
   argc = args.argc();
diff --git a/Source/CursesDialog/ccmake.cxx b/Source/CursesDialog/ccmake.cxx
index d70bedb4d..a9d4d9845 100644
--- a/Source/CursesDialog/ccmake.cxx
+++ b/Source/CursesDialog/ccmake.cxx
@@ -16,6 +16,7 @@
 
 #include <signal.h>
 #include <sys/ioctl.h>
+#include <locale.h>
 
 #include "cmCursesMainForm.h"
 #include "cmCursesStandardIncludes.h"
@@ -82,6 +83,8 @@ void CMakeMessageHandler(const char* message, const char* title, bool&,
 
 int main(int argc, char const* const* argv)
 {
+  setlocale(LC_ALL, "");
+
   cmsys::Encoding::CommandLineArguments encoding_args =
     cmsys::Encoding::CommandLineArguments::Main(argc, argv);
   argc = encoding_args.argc();
diff --git a/Source/cmakemain.cxx b/Source/cmakemain.cxx
index 77f1e4ec9..9f9f6bbdd 100644
--- a/Source/cmakemain.cxx
+++ b/Source/cmakemain.cxx
@@ -25,6 +25,7 @@
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
 #include <cmsys/Encoding.hxx>
+#include <locale.h>
 
 #ifdef CMAKE_BUILD_WITH_CMAKE
 //----------------------------------------------------------------------------
@@ -162,6 +163,7 @@ static void cmakemainProgressCallback(const char *m, float prog,
 
 int main(int ac, char const* const* av)
 {
+  setlocale(LC_ALL, "");
   cmsys::Encoding::CommandLineArguments args =
     cmsys::Encoding::CommandLineArguments::Main(ac, av);
   ac = args.argc();
diff --git a/Source/ctest.cxx b/Source/ctest.cxx
index 3eb555195..0848f19c0 100644
--- a/Source/ctest.cxx
+++ b/Source/ctest.cxx
@@ -19,6 +19,7 @@
 #include "CTest/cmCTestScriptHandler.h"
 #include "CTest/cmCTestLaunch.h"
 #include "cmsys/Encoding.hxx"
+#include <locale.h>
 
 //----------------------------------------------------------------------------
 static const char * cmDocumentationName[][2] =
@@ -114,6 +115,8 @@ static const char * cmDocumentationOptions[][2] =
 // this is a test driver program for cmCTest.
 int main (int argc, char const* const* argv)
 {
+  setlocale(LC_ALL, "");
+
   cmsys::Encoding::CommandLineArguments encoding_args =
     cmsys::Encoding::CommandLineArguments::Main(argc, argv);
   argc = encoding_args.argc();