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#serial 2
dnl The problem is that the default compilation flags in Solaris 2.6 won't
dnl let programs access large files; you need to tell the compiler that
dnl you actually want your programs to work on large files. For more
dnl details about this brain damage please see:
dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
dnl Written by Paul Eggert <eggert@twinsun.com>.
AC_DEFUN(AC_LFS,
[dnl
# If available, prefer support for large files unless the user specified
# one of the CPPFLAGS, LDFLAGS, or LIBS variables.
AC_MSG_CHECKING(whether large file support needs explicit enabling)
ac_getconfs=''
ac_result=yes
ac_set=''
ac_shellvars='CPPFLAGS LDFLAGS LIBS'
for ac_shellvar in $ac_shellvars; do
case $ac_shellvar in
CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;;
*) ac_lfsvar=LFS_$ac_shellvar ;;
esac
eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar
(getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; }
ac_getconf=`getconf $ac_lfsvar`
ac_getconfs=$ac_getconfs$ac_getconf
eval ac_test_$ac_shellvar=\$ac_getconf
done
case "$ac_result" in
no)
case "`(uname -s -r) 2>/dev/null`" in
HP-UX' '?.10.[[2-9]][[0-9]]* | HP-UX' '?.1[[1-9]]* | HP-UX' '?.[[2-9]][[0-9]]*)
# HP-UX 10.20 and later support large files,
# but do not support `getconf LFS_CFLAGS'.
ac_test_CPPFLAGS='-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
ac_test_LDFLAGS=
ac_test_LIBS=
ac_getconfs=nonempty
ac_result=yes ;;
esac ;;
esac
case "$ac_result$ac_getconfs" in
yes) ac_result=no ;;
esac
case "$ac_result$ac_set" in
yes?*) ac_result="yes, but $ac_set is already set, so use its settings"
esac
AC_MSG_RESULT($ac_result)
case $ac_result in
yes)
for ac_shellvar in $ac_shellvars; do
eval $ac_shellvar=\$ac_test_$ac_shellvar
done ;;
esac
])
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