diff --git a/SystemTools.cxx b/SystemTools.cxx
index 0a22d638a90c65a38390f57d38a09f70c8e2c9fe..ecfa3319bcc5340d631301b1f0488df7b177922b 100644
--- a/SystemTools.cxx
+++ b/SystemTools.cxx
@@ -2371,104 +2371,6 @@ long int SystemTools::CreationTime(const std::string& filename)
   return ct;
 }
 
-bool SystemTools::ConvertDateMacroString(const char* str, time_t* tmt)
-{
-  if (!str || !tmt || strlen(str) > 11) {
-    return false;
-  }
-
-  struct tm tmt2;
-
-  // __DATE__
-  // The compilation date of the current source file. The date is a string
-  // literal of the form Mmm dd yyyy. The month name Mmm is the same as for
-  // dates generated by the library function asctime declared in TIME.H.
-
-  // index:   012345678901
-  // format:  Mmm dd yyyy
-  // example: Dec 19 2003
-
-  static char month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
-
-  char buffer[12];
-  strcpy(buffer, str);
-
-  buffer[3] = 0;
-  char* ptr = strstr(month_names, buffer);
-  if (!ptr) {
-    return false;
-  }
-
-  int month = static_cast<int>((ptr - month_names) / 3);
-  int day = atoi(buffer + 4);
-  int year = atoi(buffer + 7);
-
-  tmt2.tm_isdst = -1;
-  tmt2.tm_hour = 0;
-  tmt2.tm_min = 0;
-  tmt2.tm_sec = 0;
-  tmt2.tm_wday = 0;
-  tmt2.tm_yday = 0;
-  tmt2.tm_mday = day;
-  tmt2.tm_mon = month;
-  tmt2.tm_year = year - 1900;
-
-  *tmt = mktime(&tmt2);
-  return true;
-}
-
-bool SystemTools::ConvertTimeStampMacroString(const char* str, time_t* tmt)
-{
-  if (!str || !tmt || strlen(str) > 26) {
-    return false;
-  }
-
-  struct tm tmt2;
-
-  // __TIMESTAMP__
-  // The date and time of the last modification of the current source file,
-  // expressed as a string literal in the form Ddd Mmm Date hh:mm:ss yyyy,
-  /// where Ddd is the abbreviated day of the week and Date is an integer
-  // from 1 to 31.
-
-  // index:   0123456789
-  //                    0123456789
-  //                              0123456789
-  // format:  Ddd Mmm Date hh:mm:ss yyyy
-  // example: Fri Dec 19 14:34:58 2003
-
-  static char month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
-
-  char buffer[27];
-  strcpy(buffer, str);
-
-  buffer[7] = 0;
-  char* ptr = strstr(month_names, buffer + 4);
-  if (!ptr) {
-    return false;
-  }
-
-  int month = static_cast<int>((ptr - month_names) / 3);
-  int day = atoi(buffer + 8);
-  int hour = atoi(buffer + 11);
-  int min = atoi(buffer + 14);
-  int sec = atoi(buffer + 17);
-  int year = atoi(buffer + 20);
-
-  tmt2.tm_isdst = -1;
-  tmt2.tm_hour = hour;
-  tmt2.tm_min = min;
-  tmt2.tm_sec = sec;
-  tmt2.tm_wday = 0;
-  tmt2.tm_yday = 0;
-  tmt2.tm_mday = day;
-  tmt2.tm_mon = month;
-  tmt2.tm_year = year - 1900;
-
-  *tmt = mktime(&tmt2);
-  return true;
-}
-
 std::string SystemTools::GetLastSystemError()
 {
   int e = errno;
diff --git a/SystemTools.hxx.in b/SystemTools.hxx.in
index 41a60d3058e02eaa6cba6eb93b4e0bbb6e603797..35bc1b19ba7e10020f06de03d2a97c36fe4a18e5 100644
--- a/SystemTools.hxx.in
+++ b/SystemTools.hxx.in
@@ -205,13 +205,6 @@ public:
    */
   static int Strucmp(const char* s1, const char* s2);
 
-  /**
-   * Convert a string in __DATE__ or __TIMESTAMP__ format into a time_t.
-   * Return false on error, true on success
-   */
-  static bool ConvertDateMacroString(const char* str, time_t* tmt);
-  static bool ConvertTimeStampMacroString(const char* str, time_t* tmt);
-
   /**
    * Split a string on its newlines into multiple lines
    * Return false only if the last line stored had no newline
diff --git a/testSystemTools.cxx b/testSystemTools.cxx
index 1871f5dd0d81767d9cab71863184000d92cfd7de..768eb4d12745ae46a9cb6e74e36d4c97c86d6f57 100644
--- a/testSystemTools.cxx
+++ b/testSystemTools.cxx
@@ -22,6 +22,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <stdlib.h> /* free */
 #include <string.h> /* strcmp */
 #if defined(_WIN32) && !defined(__CYGWIN__)
 #include <io.h> /* _umask (MSVC) / umask (Borland) */
@@ -535,15 +536,14 @@ static bool CheckStringOperations()
   }
   delete[] cres;
 
-  char* cres2 = new char[strlen("Mary Had A Little Lamb.") + 1];
-  strcpy(cres2, "Mary Had A Little Lamb.");
+  char* cres2 = strdup("Mary Had A Little Lamb.");
   kwsys::SystemTools::ReplaceChars(cres2, "aeiou", 'X');
   if (strcmp(cres2, "MXry HXd A LXttlX LXmb.")) {
     std::cerr << "Problem with ReplaceChars "
               << "\"Mary Had A Little Lamb.\"" << std::endl;
     res = false;
   }
-  delete[] cres2;
+  free(cres2);
 
   if (!kwsys::SystemTools::StringStartsWith("Mary Had A Little Lamb.",
                                             "Mary ")) {