[svn-r4956]

Purpose:
    Bug Fix
Description:
    On some systems, doing the shell command:

        if test -z $DEBUG_PKG; then

    doesn't work if $DEBUG_PKG is null..
Solution:
    Changed to "if test "X$DEBUG_PKG" = "X"; then" which will do the same
    thing but without the error...
Platforms tested:
    Linux

configure.in

@@ -774,6 +774,69 @@ case $withval in
     ;;
 esac
 
+dnl ----------------------------------------------------------------------
+dnl Pablo Configuration
+dnl
+AC_SUBST(PABLO) PABLO=""
+AC_SUBST(HAVE_PABLO) HAVE_PABLO="no"
+AC_ARG_WITH(pablo,
+  [  --with-pablo[=DIR]      Use the Pablo library [default=no]],,
+  withval=no)
+
+case "$withval" in
+  yes)
+    failed="no"
+    AC_CHECK_LIB(PabloTraceExt, initIOTrace,, failed="yes")
+
+    if test "$failed" != "yes"; then
+      HAVE_PABLO="yes"
+      PABLO="pablo"
+    fi
+    ;;
+  no)
+    AC_MSG_CHECKING(for Pablo)
+    AC_MSG_RESULT(suppressed)
+    ;;
+  *)
+    case "$withval" in
+      *,*)
+        pablo_inc="`echo $withval | cut -f1 -d,`"
+        pablo_lib="`echo $withval | cut -f2 -d, -s`"
+        ;;
+      *)
+        if test -n "$withval"; then
+          pablo_inc="$withval/include"
+          pablo_lib="$withval/lib"
+        fi
+        ;;
+    esac
+
+    saved_CPPFLAGS="$CPPFLAGS"
+    saved_LDFLAGS="$LDFLAGS"
+    if test -n "$pablo_inc"; then
+      CPPFLAGS="$CPPFLAGS -I$pablo_inc"
+    fi
+
+    if test -n "$pablo_lib"; then
+      LDFLAGS="$LDFLAGS -L$pablo_lib"
+    fi
+
+    failed="no"
+    AC_CHECK_HEADERS(IOTrace.h,
+                     AC_CHECK_LIB(PabloTraceExt, initIOTrace,, failed="yes"),
+                     failed="yes")
+
+    if test "$failed" = "yes"; then
+      dnl Reset flags if failed
+      CPPFLAGS="$saved_CPPFLAGS"
+      LDFLAGS="$saved_LDFLAGS"
+    else
+      HAVE_PABLO="yes"
+      PABLO="pablo"
+    fi
+    ;;
+esac
+
 dnl Is SSL library present?  It is needed by GLOBUS-GASS and Grid Storage
 dnl driver.  SSL must be tested before them.
 AC_SUBST(SSL) SSL=yes
@@ -1759,6 +1822,18 @@ if test -n "$TESTPARALLEL"; then
   PARALLEL_MAKE="$TESTPARALLEL/Makefile"
 fi
 
+PABLO_MAKE=""
+
+AC_SUBST(PARALLEL_PABLO) PARALLEL_PABLO=""
+
+if test -n "$HAVE_PABLO"; then
+  PABLO_MAKE="pablo/Makefile"
+
+  if test -n "$TESTPARALLEL"; then
+    PARALLEL_PABLO="yes"
+  fi
+fi
+
 EXTRA_H4_MAKEFILES=""
 
 if test -n "$H4TOH5"; then
@@ -1779,7 +1854,7 @@ AC_OUTPUT(src/libhdf5.settings
           config/conclude
           Makefile
           src/Makefile
-          pablo/Makefile
+          $PABLO_MAKE
           test/Makefile
           $PARALLEL_MAKE
           perform/Makefile
@@ -1883,7 +1958,7 @@ PRINT_N "                     Debug Mode"
 
 if test "X$DEBUG_PKG" = "X$all_packages"; then
   PRINT "All"
-elif test -z $DEBUG_PKG; then
+elif test "X$DEBUG_PKG" = "X"; then
   PRINT "None"
 else
   PRINT $DEBUG_PKG
@@ -1931,6 +2006,9 @@ esac
 PRINT_N " Linux Large File Support (LFS)"
 IF_ENABLED_DISABLED "$LINUX_LFS"
 
+PRINT_N "                          Pablo"
+IF_YES_NO "$HAVE_PABLO"
+
 PRINT_N "                  Parallel HDF5"
 if test "$PARALLEL" != "no"; then
   PRINT "Yes"