[svn-r13865] Purpose: Adding a new macro, H5_HAVE_OFFSETOF.

Description: When the compiler has the __offsetof__ extension, the
             H5_HAVE_OFFSETOF macro will be defined. When the compiler
             does not have the extension, the macro will remain undefined.

Tested: kagiso
This commit is contained in:
Mike McGreevy 2007-06-14 09:18:46 -05:00
parent d05df8434b
commit 9238d327a3
4 changed files with 73 additions and 4 deletions

63
configure vendored
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@ -1,5 +1,5 @@
#! /bin/sh
# From configure.in Id: configure.in 13846 2007-06-08 13:12:13Z mcgreevy .
# From configure.in Id: configure.in 13850 2007-06-11 18:51:20Z koziol .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61 for HDF5 1.8.0-beta1post1.
#
@ -1645,7 +1645,7 @@ Optional Packages:
--with-pthread=DIR Use the Pthreads library [default=no]
--with-mpe=DIR Use MPE instrumentation [default=no]
--with-default-vfd=driver
Specify default file driver [default=]
Specify default file driver [default=sec2]
Some influential environment variables:
CC C compiler command
@ -47767,6 +47767,65 @@ fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ echo "$as_me:$LINENO: checking for __offsetof__ extension" >&5
echo $ECHO_N "checking for __offsetof__ extension... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#ifdef FC_DUMMY_MAIN
#ifndef FC_DUMMY_MAIN_EQ_F77
# ifdef __cplusplus
extern "C"
# endif
int FC_DUMMY_MAIN() { return 1; }
#endif
#endif
int
main ()
{
size_t __offsetof__(unused)
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (ac_try="$ac_compile"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
(eval "$ac_compile") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && {
test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
} && test -s conftest.$ac_objext; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_OFFSETOF 1
_ACEOF
{ echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6; }
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ echo "$as_me:$LINENO: checking how to print long long" >&5
echo $ECHO_N "checking how to print long long... $ECHO_C" >&6; }
if test "${hdf5_cv_printf_ll+set}" = set; then

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@ -1932,6 +1932,13 @@ AC_TRY_COMPILE(,[(void)__FUNCTION__],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
AC_MSG_CHECKING([for __offsetof__ extension])
AC_TRY_COMPILE(,[size_t __offsetof__(unused)],
AC_DEFINE([HAVE_OFFSETOF], [1],
[Define if the __offsetof__ extension is present])
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no]))
dnl ----------------------------------------------------------------------
dnl Try to figure out how to print `long long'. Some machines use `%lld'
dnl and others use `%qd'. There may be more! The final `l' is a

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@ -276,8 +276,8 @@ H5FD_windows_term(void)
*
*-------------------------------------------------------------------------
*/
herr_t
H5Pset_fapl_windows(hid_t fapl_id)
herr_t
H5Pset_fapl_windows(hid_t fapl_id)
{
H5P_genplist_t *plist; /* Property list pointer */
herr_t ret_value;

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@ -228,6 +228,9 @@
/* Define to 1 if you have the <netinet/tcp.h> header file. */
#undef HAVE_NETINET_TCP_H
/* Define if the __offsetof__ extension is present */
#undef HAVE_OFFSETOF
/* Define if we have parallel support */
#undef HAVE_PARALLEL