diff --git a/SystemTools.cxx b/SystemTools.cxx
index 463ff71c385bf61b3fd222f9fd633f84c2b60adf..595bec07b209f11a00ca5f50d1a4b79f798e15a8 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -2893,17 +2893,6 @@ std::string SystemTools::FindDirectory(
  * the system search path.  Returns the full path to the executable if it is
  * found.  Otherwise, the empty string is returned.
  */
-std::string SystemTools::FindProgram(char const* nameIn,
-                                     std::vector<std::string> const& userPaths,
-                                     bool no_system_path)
-{
-  if (!nameIn || !*nameIn) {
-    return "";
-  }
-  return SystemTools::FindProgram(std::string(nameIn), userPaths,
-                                  no_system_path);
-}
-
 std::string SystemTools::FindProgram(std::string const& name,
                                      std::vector<std::string> const& userPaths,
                                      bool no_system_path)
@@ -2975,105 +2964,6 @@ std::string SystemTools::FindProgram(std::string const& name,
   return "";
 }
 
-std::string SystemTools::FindProgram(std::vector<std::string> const& names,
-                                     std::vector<std::string> const& path,
-                                     bool noSystemPath)
-{
-  for (std::string const& name : names) {
-    // Try to find the program.
-    std::string result = SystemTools::FindProgram(name, path, noSystemPath);
-    if (!result.empty()) {
-      return result;
-    }
-  }
-  return "";
-}
-
-/**
- * Find the library with the given name.  Searches the given path and then
- * the system search path.  Returns the full path to the library if it is
- * found.  Otherwise, the empty string is returned.
- */
-std::string SystemTools::FindLibrary(std::string const& name,
-                                     std::vector<std::string> const& userPaths)
-{
-  // See if the executable exists as written.
-  if (SystemTools::FileExists(name, true)) {
-    return SystemTools::CollapseFullPath(name);
-  }
-
-  // Add the system search path to our path.
-  std::vector<std::string> path;
-  SystemTools::GetPath(path);
-  // now add the additional paths
-  path.reserve(path.size() + userPaths.size());
-  path.insert(path.end(), userPaths.begin(), userPaths.end());
-  // Add a trailing slash to all paths to aid the search process.
-  for (std::string& p : path) {
-    if (p.empty() || p.back() != '/') {
-      p += '/';
-    }
-  }
-  std::string tryPath;
-  for (std::string const& p : path) {
-#if defined(__APPLE__)
-    tryPath = p;
-    tryPath += name;
-    tryPath += ".framework";
-    if (SystemTools::FileIsDirectory(tryPath)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-#endif
-#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__MINGW32__)
-    tryPath = p;
-    tryPath += name;
-    tryPath += ".lib";
-    if (SystemTools::FileExists(tryPath, true)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-#else
-    tryPath = p;
-    tryPath += "lib";
-    tryPath += name;
-    tryPath += ".so";
-    if (SystemTools::FileExists(tryPath, true)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-    tryPath = p;
-    tryPath += "lib";
-    tryPath += name;
-    tryPath += ".a";
-    if (SystemTools::FileExists(tryPath, true)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-    tryPath = p;
-    tryPath += "lib";
-    tryPath += name;
-    tryPath += ".sl";
-    if (SystemTools::FileExists(tryPath, true)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-    tryPath = p;
-    tryPath += "lib";
-    tryPath += name;
-    tryPath += ".dylib";
-    if (SystemTools::FileExists(tryPath, true)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-    tryPath = p;
-    tryPath += "lib";
-    tryPath += name;
-    tryPath += ".dll";
-    if (SystemTools::FileExists(tryPath, true)) {
-      return SystemTools::CollapseFullPath(tryPath);
-    }
-#endif
-  }
-
-  // Couldn't find the library.
-  return "";
-}
-
 std::string SystemTools::GetRealPath(std::string const& path,
                                      std::string* errorMessage)
 {
@@ -3380,33 +3270,6 @@ bool SystemTools::SplitProgramPath(std::string const& in_name,
   return true;
 }
 
-bool SystemTools::FindProgramPath(char const* argv0, std::string& pathOut,
-                                  std::string& errorMsg)
-{
-  std::vector<std::string> failures;
-  std::string self = argv0 ? argv0 : "";
-  failures.push_back(self);
-  SystemTools::ConvertToUnixSlashes(self);
-  self = SystemTools::FindProgram(self);
-  if (!SystemTools::FileIsExecutable(self)) {
-    failures.push_back(self);
-    std::ostringstream msg;
-    msg << "Can not find the command line program ";
-    msg << "\n";
-    if (argv0) {
-      msg << "  argv[0] = \"" << argv0 << "\"\n";
-    }
-    msg << "  Attempted paths:\n";
-    for (std::string const& ff : failures) {
-      msg << "    \"" << ff << "\"\n";
-    }
-    errorMsg = msg.str();
-    return false;
-  }
-  pathOut = self;
-  return true;
-}
-
 static void SystemToolsAppendComponents(
   std::vector<std::string>& out_components,
   std::vector<std::string>::iterator first,
diff --git a/SystemTools.hxx.in b/SystemTools.hxx.in
index c47888e1184b07bc5398beb2be3a81b5ec6b19b6..daf6ba3c65814daf7cfb8048256c51dd65d75da4 100644
--- a/SystemTools.hxx.in
+++ b/SystemTools.hxx.in
@@ -382,21 +382,6 @@ public:
   static bool SplitProgramPath(std::string const& in_name, std::string& dir,
                                std::string& file, bool errorReport = true);
 
-  /**
-   *  Given argv[0] for a unix program find the full path to a running
-   *  executable.  argv0 can be null for windows WinMain programs
-   *  in this case GetModuleFileName will be used to find the path
-   *  to the running executable.  If argv0 is not a full path,
-   *  then this will try to find the full path.  If the path is not
-   *  found false is returned, if found true is returned.  An error
-   *  message of the attempted paths is stored in errorMsg.
-   *  exeName is the name of the executable.
-   *  buildDir is a possibly null path to the build directory.
-   *  installPrefix is a possibly null pointer to the install directory.
-   */
-  static bool FindProgramPath(char const* argv0, std::string& pathOut,
-                              std::string& errorMsg);
-
   /**
    * Given a path to a file or directory, convert it to a full path.
    * This collapses away relative paths relative to the cwd argument
@@ -726,24 +711,10 @@ public:
   /**
    * Find an executable in the system PATH, with optional extra paths
    */
-  static std::string FindProgram(
-    char const* name,
-    std::vector<std::string> const& path = std::vector<std::string>(),
-    bool no_system_path = false);
   static std::string FindProgram(
     std::string const& name,
     std::vector<std::string> const& path = std::vector<std::string>(),
     bool no_system_path = false);
-  static std::string FindProgram(
-    std::vector<std::string> const& names,
-    std::vector<std::string> const& path = std::vector<std::string>(),
-    bool no_system_path = false);
-
-  /**
-   * Find a library in the system PATH, with optional extra paths
-   */
-  static std::string FindLibrary(std::string const& name,
-                                 std::vector<std::string> const& path);
 
   /**
    * Return true if the file is a directory