Index: /trunk/psLib/configure.ac
===================================================================
--- /trunk/psLib/configure.ac	(revision 10948)
+++ /trunk/psLib/configure.ac	(revision 10949)
@@ -458,4 +458,7 @@
 LDFLAGS=${TMP_LDFLAGS}
 CPPFLAGS=${TMP_CPPFLAGS}
+
+dnl set NO_STRCASESTR if we can't find strcasestr
+AC_CHECK_FUNC([strcasestr], [], [AC_SUBST(NO_STRCASESTR, [1])])
 
 dnl ------- enable -Werror after all of the probes have run ---------
Index: /trunk/psLib/src/sys/Makefile.am
===================================================================
--- /trunk/psLib/src/sys/Makefile.am	(revision 10948)
+++ /trunk/psLib/src/sys/Makefile.am	(revision 10949)
@@ -14,5 +14,6 @@
 	psSlurp.c      \
 	psString.c     \
-	psTrace.c
+	psTrace.c      \
+    strcasestr.c 
 
 EXTRA_DIST = sys.i psErrorCodes.c.in psErrorCodes.h.in
Index: /trunk/psLib/src/sys/psString.h
===================================================================
--- /trunk/psLib/src/sys/psString.h	(revision 10948)
+++ /trunk/psLib/src/sys/psString.h	(revision 10949)
@@ -14,6 +14,6 @@
  *  @author David Robbins, MHPCC
  *
- *  @version $Revision: 1.33 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-12-04 22:15:04 $
+ *  @version $Revision: 1.34 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2007-01-06 04:13:51 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -221,4 +221,12 @@
 }
 
+#ifndef DOXYGEN
+#if NO_STRCASESTR
+// this means that the system's libc does not provide strcasestr()
+#define strcasestr(...) p_psstrcasestr(__VA_ARGS__)
+extern char *p_psstrcasestr (const char *haystack, const char *needle)
+    __THROW __attribute_pure__ __nonnull ((1, 2));
+#endif // if NO_STRCASESTR
+#endif // ifndef DOXYGEN
 
 /** @} */// Doxygen - End of SystemGroup Functions
Index: /trunk/psLib/src/sys/strcasestr.c
===================================================================
--- /trunk/psLib/src/sys/strcasestr.c	(revision 10949)
+++ /trunk/psLib/src/sys/strcasestr.c	(revision 10949)
@@ -0,0 +1,137 @@
+/* Return the offset of one string within another.
+   Copyright (C) 1994, 1996-2000, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+ 
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+ 
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+ 
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/*
+ * My personal strstr() implementation that beats most other algorithms.
+ * Until someone tells me otherwise, I assume that this is the
+ * fastest implementation of strstr() in C.
+ * I deliberately chose not to comment it.  You should have at least
+ * as much fun trying to understand it, as I had to write it :-).
+ *
+ * Stephen R. van den Berg, berg@pool.informatik.rwth-aachen.de */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ctype.h>
+
+#if defined _LIBC || defined HAVE_STRING_H
+# include <string.h>
+#endif
+
+#ifdef _LIBC
+# include <locale/localeinfo.h>
+# define TOLOWER(c) __tolower_l ((unsigned char) c, loc)
+#else
+# define TOLOWER(c) _tolower (c)
+#endif
+
+typedef unsigned chartype;
+
+#undef strcasestr
+#undef __strcasestr
+
+// was named __strcasestr (phaystack, pneedle)
+char *
+p_psstrcasestr (phaystack, pneedle)
+const char *phaystack;
+const char *pneedle;
+{
+    register const unsigned char *haystack, *needle;
+    register chartype b, c;
+    #ifdef _LIBC
+
+    __locale_t loc = _NL_CURRENT_LOCALE;
+    #endif
+
+    haystack = (const unsigned char *) phaystack;
+    needle = (const unsigned char *) pneedle;
+
+    b = TOLOWER (*needle);
+    if (b != '\0') {
+        haystack--;    /* possible ANSI violation */
+        do {
+            c = *++haystack;
+            if (c == '\0')
+                goto ret0;
+        } while (TOLOWER (c) != (int) b);
+
+        c = TOLOWER (*++needle);
+        if (c == '\0')
+            goto foundneedle;
+        ++needle;
+        goto jin;
+
+        for (;;) {
+            register chartype a;
+            register const unsigned char *rhaystack, *rneedle;
+
+            do {
+                a = *++haystack;
+                if (a == '\0')
+                    goto ret0;
+                if (TOLOWER (a) == (int) b)
+                    break;
+                a = *++haystack;
+                if (a == '\0')
+                    goto ret0;
+shloop:
+                ;
+            } while (TOLOWER (a) != (int) b);
+
+jin:
+            a = *++haystack;
+            if (a == '\0')
+                goto ret0;
+
+            if (TOLOWER (a) != (int) c)
+                goto shloop;
+
+            rhaystack = haystack-- + 1;
+            rneedle = needle;
+            a = TOLOWER (*rneedle);
+
+            if (TOLOWER (*rhaystack) == (int) a)
+                do {
+                    if (a == '\0')
+                        goto foundneedle;
+                    ++rhaystack;
+                    a = TOLOWER (*++needle);
+                    if (TOLOWER (*rhaystack) != (int) a)
+                        break;
+                    if (a == '\0')
+                        goto foundneedle;
+                    ++rhaystack;
+                    a = TOLOWER (*++needle);
+                } while (TOLOWER (*rhaystack) == (int) a);
+
+            needle = rneedle;  /* took the register-poor approach */
+
+            if (a == '\0')
+                break;
+        }
+    }
+foundneedle:
+    return (char*) haystack;
+ret0:
+    return 0;
+}
+
+//weak_alias (__strcasestr, strcasestr)