-#serial 6
+#serial 11
dnl By default, many hosts won't let programs access large files;
dnl one must use special compiler options to get large-file access to work.
AC_DEFUN(AC_SYS_LARGEFILE_FLAGS,
[AC_CACHE_CHECK([for $1 value to request large file support],
ac_cv_sys_largefile_$1,
- [ac_cv_sys_largefile_$1=`($GETCONF LFS_$1) 2>/dev/null` || {
+ [if ($GETCONF LFS_$1) >conftest.1 2>conftest.2 && test ! -s conftest.2
+ then
+ ac_cv_sys_largefile_$1=`cat conftest.1`
+ else
ac_cv_sys_largefile_$1=no
ifelse($1, CFLAGS,
[case "$host_os" in
# HP-UX 10.20 requires -D__STDC_EXT__ with gcc 2.95.1.
-changequote(, )dnl
- hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)
-changequote([, ])dnl
+[ hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)]
if test "$GCC" = yes; then
ac_cv_sys_largefile_CFLAGS=-D__STDC_EXT__
fi
;;
- # IRIX 6.2 and later require cc -n32.
-changequote(, )dnl
- irix6.[2-9]* | irix6.1[0-9]* | irix[7-9].* | irix[1-9][0-9]*)
-changequote([, ])dnl
+ # IRIX 6.2 and later do not support large files by default,
+ # so use the -n32 ABI unless the installer said otherwise.
+[ irix6.[2-9]* | irix6.1[0-9]* | irix[7-9].* | irix[1-9][0-9]*)]
if test "$GCC" != yes; then
- ac_cv_sys_largefile_CFLAGS=-n32
+ case "$CC $CFLAGS " in
+ *' -o32 '*|*' -n32 '*|*' -64 '*) ;;
+ *) ac_cv_sys_largefile_CFLAGS=-n32 ;;
+ esac
fi
esac
if test "$ac_cv_sys_largefile_CFLAGS" != no; then
AC_TRY_LINK(, , , ac_cv_sys_largefile_CFLAGS=no)
CC="$ac_save_CC"
fi])
- }])])
+ fi
+ rm -f conftest*])])
dnl Internal subroutine of AC_SYS_LARGEFILE.
dnl AC_SYS_LARGEFILE_SPACE_APPEND(VAR, VAL)
AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE,
[AC_CACHE_CHECK([for $1], $2,
[$2=no
-changequote(, )dnl
$4
for ac_flag in $ac_cv_sys_largefile_CFLAGS no; do
case "$ac_flag" in
-D$1)
$2=1 ;;
-D$1=*)
- $2=`expr " $ac_flag" : '[^=]*=\(.*\)'` ;;
+ $2=`expr " $ac_flag" : '[[^=]]*=\(.*\)'` ;;
esac
done
-changequote([, ])dnl
])
if test "[$]$2" != no; then
AC_DEFINE_UNQUOTED([$1], [$]$2, [$3])
[Number of bits in a file offset, on hosts where this is settable.],
[case "$host_os" in
# HP-UX 10.20 and later
- hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)
+[ hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)]
ac_cv_sys_file_offset_bits=64 ;;
esac])
AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE,
ac_cv_sys_largefile_source,
- [Define to make fseeko etc. visible, on some hosts.],
- [case "$host_os" in
- # HP-UX 10.20 and later
- hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)
- ac_cv_sys_largefile_source=1 ;;
- esac])
+ [Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
+ [AC_TRY_COMPILE([#include <stdio.h>], [return !ftello;], ,
+ [AC_TRY_COMPILE([#define _LARGEFILE_SOURCE 1
+#include <stdio.h>], [return !ftello;],
+ ac_cv_sys_largefile_source=1)])])
AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES,
ac_cv_sys_large_files,
[Define for large files, on AIX-style hosts.],
[case "$host_os" in
# AIX 4.2 and later
- aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*)
+[ aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*)]
ac_cv_sys_large_files=1 ;;
esac])
+ AC_SYS_LARGEFILE_MACRO_VALUE(_XOPEN_SOURCE,
+ ac_cv_sys_xopen_source,
+ [Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
+ [AC_TRY_COMPILE([#include <stdio.h>], [return !ftello;], ,
+ [AC_TRY_COMPILE([#define _XOPEN_SOURCE 500
+#include <stdio.h>],
+ [return !ftello;],
+ ac_cv_sys_xopen_source=500)])])
fi
])