Fix spelling and typos (non-binary)

37 files changed, 56 insertions, 56 deletions

diff --git a/CMakeCPackOptions.cmake.in b/CMakeCPackOptions.cmake.in
index 47dad49..008a102 100644
--- a/CMakeCPackOptions.cmake.in
+++ b/CMakeCPackOptions.cmake.in
@@ -34,7 +34,7 @@ if(CPACK_GENERATOR MATCHES "NSIS")
   set(CPACK_NSIS_MODIFY_PATH ON)
 endif()
 
-# include the cpack options for qt dialog if they exisit
+# include the cpack options for qt dialog if they exist
 # they might not if qt was not enabled for the build
 include("@QT_DIALOG_CPACK_OPTIONS_FILE@" OPTIONAL)
 
diff --git a/Modules/CMakeFindPackageMode.cmake b/Modules/CMakeFindPackageMode.cmake
index cea0187..e5216f4 100644
--- a/Modules/CMakeFindPackageMode.cmake
+++ b/Modules/CMakeFindPackageMode.cmake
@@ -3,7 +3,7 @@
 #   NAME = name of the package
 #   COMPILER_ID = the CMake compiler ID for which the result is, i.e. GNU/Intel/Clang/MSVC, etc.
 #   LANGUAGE = language for which the result will be used, i.e. C/CXX/Fortan/ASM
-#   MODE = EXIST : only check for existance of the given package
+#   MODE = EXIST : only check for existence of the given package
 #          COMPILE : print the flags needed for compiling an object file which uses the given package
 #          LINK : print the flags needed for linking when using the given package
 #   QUIET = if TRUE, don't print anything
diff --git a/Modules/CMakeParseArguments.cmake b/Modules/CMakeParseArguments.cmake
index 406780e..016da0c 100644
--- a/Modules/CMakeParseArguments.cmake
+++ b/Modules/CMakeParseArguments.cmake
@@ -51,7 +51,7 @@
 #   MY_INSTALL_CONFIGURATIONS = "" (was not used)
 #   MY_INSTALL_UNPARSED_ARGUMENTS = "blub" (no value expected after "OPTIONAL"
 #
-# You can the continue and process these variables.
+# You can then continue and process these variables.
 #
 # Keywords terminate lists of values, e.g. if directly after a one_value_keyword
 # another recognized keyword follows, this is interpreted as the beginning of
diff --git a/Modules/CPackPackageMaker.cmake b/Modules/CPackPackageMaker.cmake
index 45ba465..98ca9e2 100644
--- a/Modules/CPackPackageMaker.cmake
+++ b/Modules/CPackPackageMaker.cmake
@@ -2,7 +2,7 @@
 ##end
 ##module
 # - PackageMaker CPack generator (Mac OS X).
-# The following variable is specific to installers build on Mac OS X
+# The following variable is specific to installers built on Mac OS X
 # using PackageMaker:
 ##end
 #
diff --git a/Modules/CheckFunctionExists.cmake b/Modules/CheckFunctionExists.cmake
index 7aa1748..ead1354 100644
--- a/Modules/CheckFunctionExists.cmake
+++ b/Modules/CheckFunctionExists.cmake
@@ -4,7 +4,7 @@
 # Check that the <function> is provided by libraries on the system and
 # store the result in a <variable>.  This does not verify that any
 # system header file declares the function, only that it can be found
-# at link time (considure using CheckSymbolExists).
+# at link time (consider using CheckSymbolExists).
 #
 # The following variables may be set before calling this macro to
 # modify the way the check is run:
diff --git a/Modules/CheckSizeOf.cmake b/Modules/CheckSizeOf.cmake
index 9f587b5..f0707df 100644
--- a/Modules/CheckSizeOf.cmake
+++ b/Modules/CheckSizeOf.cmake
@@ -15,4 +15,4 @@
 message(SEND_ERROR
         "Modules/CheckSizeOf.cmake has been removed.  "
         "Use Modules/CheckTypeSize.cmake instead.  This "
-        "compatability check may be removed before the next release!")
+        "compatibility check may be removed before the next release!")
diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index 8d8b10c..7f79b14 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -41,7 +41,7 @@
 #  Boost_LIBRARY_DIR         - Directory containing Boost libraries
 #  Boost_<C>_LIBRARY_DEBUG   - Component <C> library debug variant
 #  Boost_<C>_LIBRARY_RELEASE - Component <C> library release variant
-# Users may set the these hints or results as cache entries.  Projects should
+# Users may set these hints or results as cache entries.  Projects should
 # not read these entries directly but instead use the above result variables.
 # Note that some hint names start in upper-case "BOOST".  One may specify
 # these as environment variables if they are not specified as CMake variables
@@ -154,7 +154,7 @@
 
 
 #-------------------------------------------------------------------------------
-# Before we go searching, check whether boost-cmake is avaialble, unless the
+# Before we go searching, check whether boost-cmake is available, unless the
 # user specifically asked NOT to search for boost-cmake.
 #
 # If Boost_DIR is set, this behaves as any find_package call would. If not,
@@ -247,7 +247,7 @@ macro(_Boost_ADJUST_LIB_VARS basename)
     endif()
 
   endif()
-  # Make variables changeble to the advanced user
+  # Make variables changeable to the advanced user
   mark_as_advanced(
       Boost_${basename}_LIBRARY_RELEASE
       Boost_${basename}_LIBRARY_DEBUG
diff --git a/Modules/FindFLTK2.cmake b/Modules/FindFLTK2.cmake
index 071c318..09f6925 100644
--- a/Modules/FindFLTK2.cmake
+++ b/Modules/FindFLTK2.cmake
@@ -45,7 +45,7 @@ if(APPLE)
   set( FLTK2_PLATFORM_DEPENDENT_LIBS  "-framework Carbon -framework Cocoa -framework ApplicationServices -lz")
 endif()
 
-# If FLTK2_INCLUDE_DIR is already defined we assigne its value to FLTK2_DIR
+# If FLTK2_INCLUDE_DIR is already defined we assign its value to FLTK2_DIR
 if(FLTK2_INCLUDE_DIR)
   set(FLTK2_DIR ${FLTK2_INCLUDE_DIR})
 else()
diff --git a/Modules/FindITK.cmake b/Modules/FindITK.cmake
index b0b3f03..2929a76 100644
--- a/Modules/FindITK.cmake
+++ b/Modules/FindITK.cmake
@@ -17,7 +17,7 @@
 #
 #  USE_ITK_FILE - The full path to the UseITK.cmake file.
 #                 This is provided for backward
-#                 compatability.  Use ITK_USE_FILE
+#                 compatibility.  Use ITK_USE_FILE
 #                 instead.
 
 #=============================================================================
@@ -52,6 +52,6 @@ if(NOT ITK_FOUND)
 endif()
 
 if(ITK_FOUND)
-  # Set USE_ITK_FILE for backward-compatability.
+  # Set USE_ITK_FILE for backward-compatibility.
   set(USE_ITK_FILE ${ITK_USE_FILE})
 endif()
diff --git a/Modules/FindMPI.cmake b/Modules/FindMPI.cmake
index 143d10a..0eb86a8 100644
--- a/Modules/FindMPI.cmake
+++ b/Modules/FindMPI.cmake
@@ -86,7 +86,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/GetPrerequisites.cmake)
 #
 # The compilers are detected in this order:
 #
-# 1. Try to find the most generic availble MPI compiler, as this is usually set up by
+# 1. Try to find the most generic available MPI compiler, as this is usually set up by
 #    cluster admins.  e.g., if plain old mpicc is available, we'll use it and assume it's
 #    the right compiler.
 #
diff --git a/Modules/FindQt4.cmake b/Modules/FindQt4.cmake
index 21e8e91..4f3e634 100644
--- a/Modules/FindQt4.cmake
+++ b/Modules/FindQt4.cmake
@@ -115,7 +115,7 @@
 #        You should have a look on the AUTOMOC property for targets to achieve the same results.
 #
 #  macro QT4_ADD_DBUS_INTERFACE(outfiles interface basename)
-#        Create a the interface header and implementation files with the
+#        Create the interface header and implementation files with the
 #        given basename from the given interface xml file and add it to
 #        the list of sources.
 #
@@ -171,7 +171,7 @@
 #        in:  ts_files
 #        generates commands to create .qm from .ts - files. The generated
 #        filenames can be found in qm_files. The ts_files
-#        must exists and are not updated in any way.
+#        must exist and are not updated in any way.
 #
 # function QT4_USE_MODULES( target [link_type] modules...)
 #        Make <target> use the <modules> from Qt. Using a Qt module means
@@ -495,7 +495,7 @@ macro (_QT4_ADJUST_LIB_VARS _camelCaseBasename)
     set(QT_INCLUDES "${QT_${basename}_INCLUDE_DIR}" ${QT_INCLUDES})
   endif ()
 
-  # Make variables changeble to the advanced user
+  # Make variables changeable to the advanced user
   mark_as_advanced(QT_${basename}_LIBRARY QT_${basename}_LIBRARY_RELEASE QT_${basename}_LIBRARY_DEBUG QT_${basename}_INCLUDE_DIR)
 endmacro ()
 
@@ -771,7 +771,7 @@ if (QT_QMAKE_EXECUTABLE AND QTVERSION)
     endif()
   endif ()
 
-  # Make variables changeble to the advanced user
+  # Make variables changeable to the advanced user
   mark_as_advanced( QT_LIBRARY_DIR QT_DOC_DIR QT_MKSPECS_DIR
                     QT_PLUGINS_DIR QT_TRANSLATIONS_DIR)
 
diff --git a/Modules/FindVTK.cmake b/Modules/FindVTK.cmake
index 0dede2d..085d60d 100644
--- a/Modules/FindVTK.cmake
+++ b/Modules/FindVTK.cmake
@@ -51,7 +51,7 @@ if("${VTK_FIND_VERSION}" VERSION_LESS 4.1)
   endif()
 endif()
 
-# Construct consitent error messages for use below.
+# Construct consistent error messages for use below.
 set(VTK_DIR_DESCRIPTION "directory containing VTKConfig.cmake.  This is either the root of the build tree, or PREFIX/lib/vtk for an installation.")
 if(_VTK_40_ALLOW)
   set(VTK_DIR_DESCRIPTION "${VTK_DIR_DESCRIPTION}  For VTK 4.0, this is the location of UseVTK.cmake.  This is either the root of the build tree or PREFIX/include/vtk for an installation.")
@@ -127,7 +127,7 @@ endif()
 
 #-----------------------------------------------------------------------------
 if(VTK_FOUND)
-  # Set USE_VTK_FILE for backward-compatability.
+  # Set USE_VTK_FILE for backward-compatibility.
   set(USE_VTK_FILE ${VTK_USE_FILE})
 else()
   # VTK not found, explain to the user how to specify its location.
diff --git a/Modules/FindwxWindows.cmake b/Modules/FindwxWindows.cmake
index 4179f7b..868d20c 100644
--- a/Modules/FindwxWindows.cmake
+++ b/Modules/FindwxWindows.cmake
@@ -321,7 +321,7 @@ if(WIN32_STYLE_FIND)
       rpcrt4
       wsock32
       )
-    ## HACK: feed in to optimized / debug libaries if both were FOUND.
+    ## HACK: feed in to optimized / debug libraries if both were FOUND.
     set(WXWINDOWS_STATIC_DEBUG_LIBS ${WXWINDOWS_STATIC_DEBUG_LIBS}
       wxbase26d
       wxbase26d_net
@@ -354,7 +354,7 @@ if(WIN32_STYLE_FIND)
   ##
 
   ## if there is at least one shared lib available
-  ## let user choose wether to use shared or static wxwindows libs
+  ## let user choose whether to use shared or static wxwindows libs
   if(WXWINDOWS_SHARED_LIBRARY OR WXWINDOWS_SHARED_DEBUG_LIBRARY)
     ## default value OFF because wxWindows MSVS default build is static
     option(WXWINDOWS_USE_SHARED_LIBS
@@ -606,7 +606,7 @@ else()
       ../wx/bin
       ../../wx/bin )
 
-    # check wether wx-config was found:
+    # check whether wx-config was found:
     if(CMAKE_WXWINDOWS_WXCONFIG_EXECUTABLE)
 
       # use shared/static wx lib?
diff --git a/Modules/Platform/Windows-MSVC.cmake b/Modules/Platform/Windows-MSVC.cmake
index f9df6d8..09d69e6 100644
--- a/Modules/Platform/Windows-MSVC.cmake
+++ b/Modules/Platform/Windows-MSVC.cmake
@@ -22,7 +22,7 @@ set(CMAKE_LIBRARY_PATH_FLAG "-LIBPATH:")
 set(CMAKE_LINK_LIBRARY_FLAG "")
 set(MSVC 1)
 
-# hack: if a new cmake (which uses CMAKE__LINKER) runs on an old build tree
+# hack: if a new cmake (which uses CMAKE_LINKER) runs on an old build tree
 # (where link was hardcoded) and where CMAKE_LINKER isn't in the cache
 # and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
 # hardcode CMAKE_LINKER here to link, so it behaves as it did before, Alex
diff --git a/Modules/UseEcos.cmake b/Modules/UseEcos.cmake
index 028df82..0c4fee4 100644
--- a/Modules/UseEcos.cmake
+++ b/Modules/UseEcos.cmake
@@ -132,10 +132,10 @@ macro(ECOS_ADJUST_DIRECTORY _target_FILES )
 endmacro()
 
 # the default ecos config file name
-# maybe in the future also out-of-source builds may be possible
+# maybe in future also out-of-source builds may be possible
 set(ECOS_CONFIG_FILE ecos.ecc)
 
-#creates the dependancy from all source files on the ecos target.ld,
+#creates the dependency from all source files on the ecos target.ld,
 #adds the command for compiling ecos
 macro(ECOS_ADD_TARGET_LIB)
 # when building out-of-source, create the ecos/ subdir
diff --git a/Source/CTest/cmCTestTestHandler.cxx b/Source/CTest/cmCTestTestHandler.cxx
index e7491bb..3a9b192 100644
--- a/Source/CTest/cmCTestTestHandler.cxx
+++ b/Source/CTest/cmCTestTestHandler.cxx
@@ -1363,7 +1363,7 @@ void cmCTestTestHandler
     tempPath += filename;
     attempted.push_back(tempPath);
     attemptedConfigs.push_back(ctest->GetConfigType());
-    // If the file is an OSX bundle then the configtyp
+    // If the file is an OSX bundle then the configtype
     // will be at the start of the path
     tempPath = ctest->GetConfigType();
     tempPath += "/";
@@ -1374,7 +1374,7 @@ void cmCTestTestHandler
     }
   else
     {
-    // no config specified to try some options
+    // no config specified - try some options...
     tempPath = filepath;
     tempPath += "Release/";
     tempPath += filename;
diff --git a/Source/CursesDialog/form/frm_driver.c b/Source/CursesDialog/form/frm_driver.c
index f234722..b9611bf 100644
--- a/Source/CursesDialog/form/frm_driver.c
+++ b/Source/CursesDialog/form/frm_driver.c
@@ -176,7 +176,7 @@ static int FE_Delete_Previous(FORM *);
 #define Address_Of_Current_Position_In_Buffer(form) \
   Address_Of_Current_Position_In_Nth_Buffer(form,0)
 
-/* Logic to decide wether or not a field is actually a field with
+/* Logic to decide whether or not a field is actually a field with
    vertical or horizontal scrolling */
 #define Is_Scroll_Field(field)          \
    (((field)->drows > (field)->rows) || \
@@ -2100,7 +2100,7 @@ static int Insert_String(FORM *form, int row, char *txt, int len)
 |                    the wrapping.
 |
 |   Return Values :  E_OK              - no wrapping required or wrapping
-|                                        was successfull
+|                                        was successful
 |                    E_REQUEST_DENIED  -
 |                    E_SYSTEM_ERROR    - some system error
 +--------------------------------------------------------------------------*/
@@ -3825,7 +3825,7 @@ int set_field_buffer(FIELD * field, int buffer, const char * value)
                            (int)(1 + (vlen-len)/((field->rows+field->nrow)*field->cols))))
             RETURN(E_SYSTEM_ERROR);
 
-          /* in this case we also have to check, wether or not the remaining
+          /* in this case we also have to check, whether or not the remaining
              characters in value are also printable for buffer 0. */
           if (buffer==0)
             {
diff --git a/Source/CursesDialog/form/fty_enum.c b/Source/CursesDialog/form/fty_enum.c
index 8fc4cd7..59058a9 100644
--- a/Source/CursesDialog/form/fty_enum.c
+++ b/Source/CursesDialog/form/fty_enum.c
@@ -101,7 +101,7 @@ static void Free_Enum_Type(void * argp)
 |                                       const unsigned char * buf,
 |                                       bool  ccase )
 |   
-|   Description   :  Check wether or not the text in 'buf' matches the
+|   Description   :  Check whether or not the text in 'buf' matches the
 |                    text in 's', at least partial.
 |
 |   Return Values :  NOMATCH   - buffer doesn't match
diff --git a/Source/cmFunctionCommand.cxx b/Source/cmFunctionCommand.cxx
index 10b47b9..a126cd1 100644
--- a/Source/cmFunctionCommand.cxx
+++ b/Source/cmFunctionCommand.cxx
@@ -267,7 +267,7 @@ ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf)
     std::vector<std::string> expandedArguments;
     mf.ExpandArguments(lff.Arguments, expandedArguments);
     // if the endfunction has arguments then make sure
-    // they match the ones in the openeing function command
+    // they match the ones in the opening function command
     if ((expandedArguments.empty() ||
          (expandedArguments[0] == this->Args[0])))
       {
diff --git a/Source/cmGlobalVisualStudioGenerator.cxx b/Source/cmGlobalVisualStudioGenerator.cxx
index 808664d..f4be0ce 100644
--- a/Source/cmGlobalVisualStudioGenerator.cxx
+++ b/Source/cmGlobalVisualStudioGenerator.cxx
@@ -449,7 +449,7 @@ void cmGlobalVisualStudioGenerator::ComputeVSTargetDepends(cmTarget& target)
       }
     }
 
-  // Collext explicit util dependencies (add_dependencies).
+  // Collect explicit util dependencies (add_dependencies).
   std::set<cmTarget*> utilDepends;
   for(TargetDependSet::const_iterator di = depends.begin();
       di != depends.end(); ++di)
diff --git a/Source/cmIncludeCommand.cxx b/Source/cmIncludeCommand.cxx
index 0d5f67b..bb891d6 100644
--- a/Source/cmIncludeCommand.cxx
+++ b/Source/cmIncludeCommand.cxx
@@ -61,7 +61,7 @@ bool cmIncludeCommand
       noPolicyScope = true;
       }
       else if(i > 1)  // compat.: in previous cmake versions the second
-                      // parameter was ignore if it wasn't "OPTIONAL"
+                      // parameter was ignored if it wasn't "OPTIONAL"
         {
         std::string errorText = "called with invalid argument: ";
         errorText += args[i];
diff --git a/Source/cmLocalUnixMakefileGenerator3.cxx b/Source/cmLocalUnixMakefileGenerator3.cxx
index 0f680f6..78a70f8 100644
--- a/Source/cmLocalUnixMakefileGenerator3.cxx
+++ b/Source/cmLocalUnixMakefileGenerator3.cxx
@@ -1304,7 +1304,7 @@ cmLocalUnixMakefileGenerator3
   std::string unmodified = s;
   unmodified += s2;
   // if there is no restriction on the length of make variables
-  // and there are no "." charactors in the string, then return the
+  // and there are no "." characters in the string, then return the
   // unmodified combination.
   if((!this->MakefileVariableSize && unmodified.find('.') == s.npos)
      && (!this->MakefileVariableSize && unmodified.find('+') == s.npos)
@@ -1345,7 +1345,7 @@ cmLocalUnixMakefileGenerator3
     return ret;
     }
 
-  // if the string is greater the 32 chars it is an invalid vairable name
+  // if the string is greater than 32 chars it is an invalid variable name
   // for borland make
   if(static_cast<int>(ret.size()) > this->MakefileVariableSize)
     {
@@ -1353,8 +1353,8 @@ cmLocalUnixMakefileGenerator3
     int size = keep + 3;
     std::string str1 = s;
     std::string str2 = s2;
-    // we must shorten the combined string by 4 charactors
-    // keep no more than 24 charactors from the second string
+    // we must shorten the combined string by 4 characters
+    // keep no more than 24 characters from the second string
     if(static_cast<int>(str2.size()) > keep)
       {
       str2 = str2.substr(0, keep);
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 7cf9d91..606ec93 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2086,7 +2086,7 @@ void cmMakefile::AddSourceGroup(const std::vector<std::string>& name,
     }
   else if(i==-1)
     {
-    // group does not exists nor belong to any existing group
+    // group does not exist nor belong to any existing group
     // add its first component
     this->SourceGroups.push_back(cmSourceGroup(name[0].c_str(), regex));
     sg = this->GetSourceGroup(currentName);
diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 7e48cd7..e5f3570 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -505,7 +505,7 @@ void cmNinjaNormalTargetGenerator::WriteLinkStatement()
     const std::string objPath = GetTarget()->GetSupportDirectory();
     vars["OBJECT_DIR"] = ConvertToNinjaPath(objPath.c_str());
     EnsureDirectoryExists(objPath);
-    // ar.exe can't handle backslashes in rsp files (implictly used by gcc)
+    // ar.exe can't handle backslashes in rsp files (implicitly used by gcc)
     std::string& linkLibraries = vars["LINK_LIBRARIES"];
     std::replace(linkLibraries.begin(), linkLibraries.end(), '\\', '/');
     }
diff --git a/Source/cmQtAutomoc.cxx b/Source/cmQtAutomoc.cxx
index a1fa31f..9783ce9 100644
--- a/Source/cmQtAutomoc.cxx
+++ b/Source/cmQtAutomoc.cxx
@@ -696,7 +696,7 @@ void cmQtAutomoc::ParseCppFile(const std::string& absFilename,
   std::string ownMocHeaderFile;
 
   std::string::size_type matchOffset = 0;
-  // first a simply string check for "moc" is *much* faster than the regexp,
+  // first a simple string check for "moc" is *much* faster than the regexp,
   // and if the string search already fails, we don't have to try the
   // expensive regexp
   if ((strstr(contentsString.c_str(), "moc") != NULL)
@@ -870,7 +870,7 @@ void cmQtAutomoc::StrictParseCppFile(const std::string& absFilename,
   bool dotMocIncluded = false;
 
   std::string::size_type matchOffset = 0;
-  // first a simply string check for "moc" is *much* faster than the regexp,
+  // first a simple string check for "moc" is *much* faster than the regexp,
   // and if the string search already fails, we don't have to try the
   // expensive regexp
   if ((strstr(contentsString.c_str(), "moc") != NULL)
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 0b2def2..8355d78 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -56,7 +56,7 @@ public:
 
   typedef  void (*ErrorCallback)(const char*, const char*, bool&, void*);
   /**
-   *  Set the function used by GUI's to display error messages
+   *  Set the function used by GUIs to display error messages
    *  Function gets passed: message as a const char*,
    *  title as a const char*, and a reference to bool that when
    *  set to false, will disable furthur messages (cancel).
diff --git a/Source/cmVisualStudioGeneratorOptions.cxx b/Source/cmVisualStudioGeneratorOptions.cxx
index 1df0d9e..3579997 100644
--- a/Source/cmVisualStudioGeneratorOptions.cxx
+++ b/Source/cmVisualStudioGeneratorOptions.cxx
@@ -228,7 +228,7 @@ cmVisualStudioGeneratorOptions
     }
   if(this->Version >= cmLocalVisualStudioGenerator::VS10)
     {
-    // if there are configuration specifc flags, then
+    // if there are configuration specific flags, then
     // use the configuration specific tag for PreprocessorDefinitions
     if(this->Configuration.size())
       {
diff --git a/Source/cmWin32ProcessExecution.cxx b/Source/cmWin32ProcessExecution.cxx
index 5752ab6..1bdeffb 100644
--- a/Source/cmWin32ProcessExecution.cxx
+++ b/Source/cmWin32ProcessExecution.cxx
@@ -506,7 +506,7 @@ bool cmWin32ProcessExecution::PrivateOpen(const char *cmdstring,
 
   /* Create new output read handle and the input write handle. Set
    * the inheritance properties to FALSE. Otherwise, the child inherits
-   * the these handles; resulting in non-closeable handles to the pipes
+   * these handles; resulting in non-closeable handles to the pipes
    * being created. */
   fSuccess = DuplicateHandle(GetCurrentProcess(), this->hChildStdinWr,
                              GetCurrentProcess(), &this->hChildStdinWrDup, 0,
diff --git a/Source/cmWin32ProcessExecution.h b/Source/cmWin32ProcessExecution.h
index 98b6bda..2127ebd2 100644
--- a/Source/cmWin32ProcessExecution.h
+++ b/Source/cmWin32ProcessExecution.h
@@ -69,7 +69,7 @@ public:
   /**
    * Start the process in the directory path. Make sure that the
    * executable is either in the path or specify the full path. The
-   * argument verbose specifies wether or not to display output while
+   * argument verbose specifies whether or not to display output while
    * it is being generated.
    */
   bool StartProcess(const char*, const char* path, bool verbose);
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 5303826..ae62edb 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -2365,7 +2365,7 @@ int cmake::ActualConfigure()
   // EXECUTABLE_OUTPUT_PATH.  They are now documented as old-style and
   // should no longer be used.  Therefore we present them only if the
   // project requires compatibility with CMake 2.4.  We detect this
-  // here by looking for the old CMAKE_BACKWARDS_COMPATABILITY
+  // here by looking for the old CMAKE_BACKWARDS_COMPATIBILITY
   // variable created when CMP0001 is not set to NEW.
   if(this->GetCacheManager()->GetCacheValue("CMAKE_BACKWARDS_COMPATIBILITY"))
     {
@@ -4117,7 +4117,7 @@ int cmake::WindowsCEEnvironment(const char* version, const std::string& name)
   return -1;
 }
 
-// For visual studio 2005 and newer manifest files need to be embeded into
+// For visual studio 2005 and newer manifest files need to be embedded into
 // exe and dll's.  This code does that in such a way that incremental linking
 // still works.
 int cmake::VisualStudioLink(std::vector<std::string>& args, int type)
diff --git a/Source/cmake.h b/Source/cmake.h
index 63065a1..1a09d88 100644
--- a/Source/cmake.h
+++ b/Source/cmake.h
@@ -35,7 +35,7 @@ class cmGeneratedFileStream;
 /** \brief Represents a cmake invocation.
  *
  * This class represents a cmake invocation. It is the top level class when
- * running cmake. Most cmake based GUIS should primarily create an instance
+ * running cmake. Most cmake based GUIs should primarily create an instance
  * of this class and communicate with it.
  *
  * The basic process for a GUI is as follows:
@@ -255,7 +255,7 @@ class cmake
   typedef  void (*ProgressCallbackType)
     (const char*msg, float progress, void *);
   /**
-   *  Set the function used by GUI's to receive progress updates
+   *  Set the function used by GUIs to receive progress updates
    *  Function gets passed: message as a const char*, a progress
    *  amount ranging from 0 to 1.0 and client data. The progress
    *  number provided may be negative in cases where a message is
diff --git a/Tests/CompatibleInterface/CMakeLists.txt b/Tests/CompatibleInterface/CMakeLists.txt
index fc76e48..ae1d2fa 100644
--- a/Tests/CompatibleInterface/CMakeLists.txt
+++ b/Tests/CompatibleInterface/CMakeLists.txt
@@ -70,7 +70,7 @@ target_compile_definitions(CompatibleInterface
 
 # The COMPATIBLE_INTERFACE_* properties are only read from dependencies
 # in the interface. Populating it on the CompatibleInterface target does
-# not have any affect on the interpretation of the INTERFACE variants
+# not have any effect on the interpretation of the INTERFACE variants
 # in dependencies.
 set_property(TARGET iface1 PROPERTY
   INTERFACE_NON_RELEVANT_PROP ON
diff --git a/Utilities/cmcurl/ftp.c b/Utilities/cmcurl/ftp.c
index 8839889..3ccbc43 100644
--- a/Utilities/cmcurl/ftp.c
+++ b/Utilities/cmcurl/ftp.c
@@ -3683,7 +3683,7 @@ CURLcode ftp_parse_url_path(struct connectdata *conn)
       /* seek out the next path component */
       if (slash_pos-cur_pos) {
         /* we skip empty path components, like "x//y" since the FTP command
-           CWD requires a parameter and a non-existant parameter a) doesn't
+           CWD requires a parameter and a non-existent parameter a) doesn't
            work on many servers and b) has no effect on the others. */
         int len = (int)(slash_pos - cur_pos + absolute_dir);
         ftpc->dirs[ftpc->dirdepth] = curl_easy_unescape(conn->data,
diff --git a/Utilities/cmcurl/http.c b/Utilities/cmcurl/http.c
index c07053b..5405aac 100644
--- a/Utilities/cmcurl/http.c
+++ b/Utilities/cmcurl/http.c
@@ -178,7 +178,7 @@ static bool pickoneauth(struct auth *pick)
   picked = TRUE;
 
   /* The order of these checks is highly relevant, as this will be the order
-     of preference in case of the existance of multiple accepted types. */
+     of preference in case of the existence of multiple accepted types. */
   if(avail & CURLAUTH_GSSNEGOTIATE)
     pick->picked = CURLAUTH_GSSNEGOTIATE;
   else if(avail & CURLAUTH_DIGEST)
diff --git a/Utilities/cmcurl/urldata.h b/Utilities/cmcurl/urldata.h
index 9537ce3..46d956d 100644
--- a/Utilities/cmcurl/urldata.h
+++ b/Utilities/cmcurl/urldata.h
@@ -621,7 +621,7 @@ typedef CURLcode (*Curl_done_func)(struct connectdata *, CURLcode, bool);
  * Store's request specific data in the easy handle (SessionHandle).
  * Previously, these members were on the connectdata struct but since
  * a conn struct may now be shared between different SessionHandles,
- * we store connection-specifc data here.
+ * we store connection-specific data here.
  *
  */
 struct HandleData {
diff --git a/Utilities/cmlibarchive/libarchive/archive_read_support_format_mtree.c b/Utilities/cmlibarchive/libarchive/archive_read_support_format_mtree.c
index 6ac7db8..3ba4be0 100644
--- a/Utilities/cmlibarchive/libarchive/archive_read_support_format_mtree.c
+++ b/Utilities/cmlibarchive/libarchive/archive_read_support_format_mtree.c
@@ -407,7 +407,7 @@ bid_keyword(const char *p,  ssize_t len)
 		if (l > 0)
 			return (l);
 	}
-	return (0);/* Unkown key */
+	return (0);/* Unknown key */
 }
 
 /*
diff --git a/Utilities/cmzlib/zlib.h b/Utilities/cmzlib/zlib.h
index 0228179..46e2db4 100644
--- a/Utilities/cmzlib/zlib.h
+++ b/Utilities/cmzlib/zlib.h
@@ -869,7 +869,7 @@ ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
      See inflateBack() for the usage of these routines.
 
      inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
-   the paramaters are invalid, Z_MEM_ERROR if the internal state could not
+   the parameters are invalid, Z_MEM_ERROR if the internal state could not
    be allocated, or Z_VERSION_ERROR if the version of the library does not
    match the version of the header file.
 */