AC_DEFUN([AC_CHECK_XAU],[
save_CFLAGS="$CFLAGS"
CFLAGS="$X_CFLAGS $CFLAGS"
save_LIBS="$LIBS"
LIBS="$X_PRE_LIBS $X_EXTRA_LIBS $LIBS"
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $X_LIBS"
AC_FIND_FUNC_NO_LIBS(XauWriteAuth, X11 Xau,[ac_xxx="$LIBS"
LIBS="$LIB_XauWriteAuth $LIBS"
AC_FIND_FUNC_NO_LIBS(XauReadAuth, X11 Xau,[LIBS="$LIB_XauReadAauth $LIBS"
AC_FIND_FUNC_NO_LIBS(XauFileName, X11 Xau,[LIBS="$ac_xxx"
case "$ac_cv_funclib_XauWriteAuth" in
yes) ;;
no) ;;
*) if test "$ac_cv_funclib_XauReadAuth" = yes; then
if test "$ac_cv_funclib_XauFileName" = yes; then
LIB_XauReadAuth="$LIB_XauWriteAuth"
else
LIB_XauReadAuth="$LIB_XauWriteAuth $LIB_XauFileName"
fi
else
if test "$ac_cv_funclib_XauFileName" = yes; then
LIB_XauReadAuth="$LIB_XauReadAuth $LIB_XauWriteAuth"
else
LIB_XauReadAuth="$LIB_XauReadAuth $LIB_XauWriteAuth $LIB_XauFileName"
fi
fi
;;
esac
if test "$AUTOMAKE" != ""; then
AM_CONDITIONAL(NEED_WRITEAUTH, test "$ac_cv_func_XauWriteAuth" != "yes")
else
AC_SUBST(NEED_WRITEAUTH_TRUE)
AC_SUBST(NEED_WRITEAUTH_FALSE)
if test "$ac_cv_func_XauWriteAuth" != "yes"; then
NEED_WRITEAUTH_TRUE=
NEED_WRITEAUTH_FALSE=' else
NEED_WRITEAUTH_TRUE=' NEED_WRITEAUTH_FALSE=
fi
fi
CFLAGS=$save_CFLAGS
LIBS=$save_LIBS
LDFLAGS=$save_LDFLAGS
])