#!/bin/sh

output="cpucycles.o cpucycles.h"
cleanup="test cpucycles-impl.o cpucycles-impl.h cpucycles-impl.c"

exec 2>do.notes
rm -f $output $cleanup

(
  echo amd64tscfreq gcc
  echo amd64cpuinfo gcc
  echo x86tscfreq gcc
  echo x86cpuinfo gcc
  echo powerpclinux gcc
  echo powerpcmacos gcc
  echo powerpcaix gcc
  echo powerpcaix ibmcc
  echo sparcpsrinfo gcc
  echo sparcpsrinfo suncc
  echo sparc32psrinfo gcc
  echo sparc32psrinfo suncc
  echo hppapstat gcc
  echo hppapstat hpcc
  echo alpha gcc
  echo clockmonotonic gcc
  echo gettimeofday gcc
) | (
  while read name compiler
  do
    echo ===== Trying $name.c with $compiler... >&2
    rm -f $cleanup
    cp $name.c cpucycles-impl.c || continue
    cp $name.h cpucycles-impl.h || continue
    env COMPILER=$compiler ./compile -c cpucycles-impl.c || continue
    env COMPILER=$compiler ./compile -o test test.c cpucycles-impl.o || continue
    ./test || continue
    echo ===== Success. Using $name.c. >&2
    mv cpucycles-impl.o cpucycles.o
    mv cpucycles-impl.h cpucycles.h
    rm -f $cleanup
    exit 0
  done
  
  echo ===== Giving up. >&2
  rm -f $output $cleanup
  exit 111
)