#!/usr/bin/env zsh

# Output all the files included by gcc when requiring some header files.

emulate -LR zsh

if [[ $# -eq 0 ]] then
  echo "Usage: gccheaders header_file | gcc_option ..." >&2
  return 1
fi

set -x
printf '#include <%s>\n' "${@:#-*}" | \
  "${CC:-gcc}" -H -E "${(M)@:#-*}" - 2>&1 >/dev/null

# $Id: gccheaders 21379 2008-02-21 16:03:58Z lefevre $