added AC_SYS_LFS from fileutils

acinclude.m4

@@ -234,3 +234,46 @@ AC_DEFUN(PHP_WITH_SHARED,[
 	    ;;
     esac
 ])
+
+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_SYS_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 "$ac_result$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
+])