faubackup2/m4 .cvsignore,NONE,1.1 as-ac-expand.m4,NONE,1.1

Update of /cvsroot/faubackup/faubackup2/m4
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv19300/m4

Added Files:
	.cvsignore as-ac-expand.m4 
Log Message:
add as-ac-expand macro

--- NEW FILE: .cvsignore ---
codeset.m4
gettext.m4
glibc2.m4
glibc21.m4
iconv.m4
intdiv0.m4
intmax.m4
inttypes-pri.m4
inttypes.m4
inttypes_h.m4
isc-posix.m4
lcmessage.m4
lib-ld.m4
lib-link.m4
lib-prefix.m4
longdouble.m4
longlong.m4
nls.m4
po.m4
printf-posix.m4
progtest.m4
signed.m4
size_max.m4
stdint_h.m4
uintmax_t.m4
ulonglong.m4
wchar_t.m4
wint_t.m4
xsize.m4

--- NEW FILE: as-ac-expand.m4 ---
dnl as-ac-expand.m4 0.1.0
dnl autostars m4 macro for expanding directories using configure's prefix
dnl [email protected]

dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
dnl example
dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local

AC_DEFUN(AS_AC_EXPAND,
[
  EXP_VAR=[$1]
  FROM_VAR=[$2]

  dnl first expand prefix and exec_prefix if necessary
  prefix_save=$prefix
  exec_prefix_save=$exec_prefix

  dnl if no prefix given, then use /usr/local, the default prefix
  if test "x$prefix" = "xNONE"; then
    prefix=$ac_default_prefix
  fi
  dnl if no exec_prefix given, then use prefix
  if test "x$exec_prefix" = "xNONE"; then
    exec_prefix=$prefix
  fi

  full_var="$FROM_VAR"
  dnl loop until it doesn't change anymore
  while true; do
    new_full_var="`eval echo $full_var`"
    if test "x$new_full_var" = "x$full_var"; then break; fi
    full_var=$new_full_var
  done

  dnl clean up
  full_var=$new_full_var
  AC_SUBST([$1], "$full_var")

  dnl restore prefix and exec_prefix
  prefix=$prefix_save
  exec_prefix=$exec_prefix_save
])



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