acinclude.m4

# approach. The code below that is actually added seems to be used for cases
# where configure has trouble figuring out what C compiler to use but where
# the installed libtool has an idea.
#
# This function is a re-implemented version of the Paolo Bonzini fix posted to
# the c-ares mailing list by Bram Matthys on May 6 2006. My version removes
# redundant code but also adds the LTCFLAGS check that wasn't in that patch.
#
# Some code in this function was extracted from the generated configure script.
#
# CARES_CLEAR_LIBTOOL_TAGS
AC_DEFUN([CARES_CLEAR_LIBTOOL_TAGS],
  [m4_define([_LT_AC_TAGCONFIG], [
  if test -f "$ltmain"; then
    if test ! -f "${ofile}"; then
      AC_MSG_WARN([output file `$ofile' does not exist])
    fi

    if test -z "$LTCC"; then
      eval "`$SHELL ${ofile} --config | grep '^LTCC='`"
      if test -z "$LTCC"; then
        AC_MSG_WARN([output file `$ofile' does not look like a libtool
script])
      else
        AC_MSG_WARN([using `LTCC=$LTCC', extracted from `$ofile'])
      fi
    fi
    if test -z "$LTCFLAGS"; then
      eval "`$SHELL ${ofile} --config | grep '^LTCFLAGS='`"
    fi
  fi
  ])]
)