[svn-r18635] Description:

	Bring r18634 from trunk to 1.8 branch:

	Clean up compiler warnings.

Tested on:
       FreeBSD/32 6.3 (duty) in debug mode
       FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
	(h5committested on trunk)

1 files changed, 46 insertions, 1 deletions

diff --git a/configure b/configure
index 223784b..671503f 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: configure.in 18546 2010-04-12 04:52:30Z hdftest .
+# From configure.in Id: configure.in 18591 2010-04-19 00:22:22Z hdftest .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.65 for HDF5 1.8.4-snap20.
 #
@@ -21345,6 +21345,17 @@ _ACEOF
 
 fi
 
+ac_fn_c_check_type "$LINENO" "ptrdiff_t" "ac_cv_type_ptrdiff_t" "$ac_includes_default"
+if test "x$ac_cv_type_ptrdiff_t" = x""yes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define ptrdiff_t long
+_ACEOF
+
+fi
+
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
 $as_echo_n "checking whether byte ordering is bigendian... " >&6; }
 if test "${ac_cv_c_bigendian+set}" = set; then :
@@ -22931,6 +22942,40 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of ptrdiff_t" >&5
+$as_echo_n "checking size of ptrdiff_t... " >&6; }
+if test "${ac_cv_sizeof_ptrdiff_t+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (ptrdiff_t))" "ac_cv_sizeof_ptrdiff_t"        "$ac_includes_default"; then :
+
+else
+  if test "$ac_cv_type_ptrdiff_t" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ as_fn_set_status 77
+as_fn_error "cannot compute sizeof (ptrdiff_t)
+See \`config.log' for more details." "$LINENO" 5; }; }
+   else
+     ac_cv_sizeof_ptrdiff_t=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_ptrdiff_t" >&5
+$as_echo "$ac_cv_sizeof_ptrdiff_t" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF_PTRDIFF_T $ac_cv_sizeof_ptrdiff_t
+_ACEOF
+
+
 
 cat >>confdefs.h <<\EOF
 #include <sys/types.h> /*for off_t definition*/