#!/bin/sh

# We can't use the AC_ macros here 
# (no expansion is provided, these are shell scripts, remember?)

# But, we don't usually test the results of the expansion either...

# So we have a function which is an abreviated version of the expansion
# that would occur if we did this in configure.in 

# Invoke: test_library(-lname, functionname)

test_library()
{

    ce_status=0

    # In case this isn't from ./configure, set the key items to 'reasonable'
    # defaults

    if test ".$CC" = "."; then
      CC=gcc
    fi
    if test ".$ac_ext" = "."; then
      ac_ext=c
    fi
    if test ".$ac_objext" = "."; then
      ac_objext=o
    fi
    if test ".$ac_exeext" = "."; then
      ac_exeext=
    fi
    if test ".$ac_link" = "."; then
      ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS'
    fi
    
    echo ""
    echo -n "checking for $2 in -l$1..."
    ac_check_lib_save_LIBS=$LIBS
    LIBS="-l$1  $LIBS"
    
    cat >conftest.$ac_ext <<_ACEOF
// Test program from configureextra/HPUX
    
/* begin confdefs.h.  */
_ACEOF
    
    if test -f confdefs.h; then 
        cat confdefs.h >>conftest.$ac_ext
    fi
    
    cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

/* We use char because int might match the return type of a gcc2
   builtin and then its argument prototype would still apply.  */
char $2 ();
int
main ()
{
$2 ();
  ;
  return 0;
}
_ACEOF
    rm -f conftest.$ac_objext conftest$ac_exeext conftest.msg
    eval $ac_link 2> conftest.msg
    ce_status=$?

    if [ $ce_status -eq 0 ]; then
      ac_try='test -s conftest$ac_exeext'
      eval $ac_try
      ce_status=$?
    fi
    if [ $ce_status -eq 0 ]; then
      echo "ok"
      ac_set='export ac_cv_lib_$1_$2=yes'
      eval $ac_set
      have=`echo $1 | awk '{ print toupper($0) }'`
      cat >>confdefs.h <<_ACEOF
#define HAVE_LIB$have 1
_ACEOF
    
    else
      echo "failed, message(s) are:"
      echo ""
      cat conftest.msg
      echo ""
      if [ ".${ac_debug}" = ".yes" ]; then
          echo "test program was:"
          echo ""
          sed 's/^/| /' conftest.$ac_ext
          echo ""
      fi
      ac_set='export ac_cv_lib_$1_$2=no'
      eval $ac_set
      LIBS=$ac_check_lib_save_LIBS
    fi
    
    rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext conftest.msg
    
    echo ""
}