dnl @synopsis AG_CHECK_STRCSPN
dnl
dnl Not all systems have strcspn(3). See if we need to substitute. To
dnl make this work, you have to do horrible things. In one of your
dnl Makefile.am files, you must make an explicit rule to make this
dnl object. It should look like this:
dnl
dnl   strcspn.lo : $(top_srcdir)/compat/strcspn.c
dnl       $(LTCOMPILE) -o $@ -c $(top_srcdir)/compat/strcspn.c
dnl
dnl and you must include ``@COMPATOBJ@'' in a LIBADD somewhere and,
dnl finally, you must add another artificial dependency, something
dnl like:
dnl
dnl   makeshell.lo : genshell.c @COMPATOBJ@
dnl
dnl It is all pretty horrific, but I have found nothing else that
dnl works.
dnl
dnl @category C
dnl @author Bruce Korb <bkorb@gnu.org>
dnl @version 2001-12-01
dnl @license GPLWithACException

dnl DO NOT EDIT THIS FILE   (ag_check_strcspn.m4)
dnl
dnl It has been AutoGen-ed  Saturday December  1, 2001 at 09:21:28 PM PST
dnl From the definitions    bkorb.def
dnl and the template file   conftest.tpl
dnl See: http://autogen.sf.net for a description of the AutoGen project

AC_DEFUN([AG_CHECK_STRCSPN],[
  AC_MSG_CHECKING([whether strcspn matches prototype and works])
  AC_CACHE_VAL([ag_cv_strcspn],[
  AC_TRY_RUN([#include <string.h>
int main (int argc, char** argv) {
   char zRej[] = "reject";
   char zAcc[] = "a-ok-eject";
   return strcspn( zAcc, zRej ) - 5;
}],[ag_cv_strcspn=yes],[ag_cv_strcspn=no],[ag_cv_strcspn=no]
  ) # end of TRY_RUN]) # end of CACHE_VAL

  AC_MSG_RESULT([$ag_cv_strcspn])
  if test x$ag_cv_strcspn = xyes
  then
    AC_DEFINE(HAVE_STRCSPN, 1,
       [Define this if strcspn matches prototype and works])
  else
    COMPATOBJ="$COMPATOBJ strcspn.lo"
  fi
]) # end of AC_DEFUN of AG_CHECK_STRCSPN