configure

#!/bin/sh
# vim: sts=2 sw=2 et fdm=marker cms=\ #\ %s

findtool() # {{{
{
  local val= varval= var="$1"; shift
  eval "varval=\"\$$var\""
  if test -n "$varval"; then
    val=$(which $varval 2>/dev/null || :)
  fi
  while test -z "$val" && test "${1+set}" = set; do
    test -z "$1" ||
      val=$(which "$1" 2>/dev/null || :)
    shift
  done
  test -n "$val" || {
    echo >&2 "not found: $var"
    exit 1
  }
  test -x "$val" || {
    echo >&2 "not executable: $var ($val)"
    exit 1
  }
  eval "$var=\"\$val\""
} # }}}

mksubstvars() # {{{
{
  local f=substvars
  cat > "$f" <<-EOF
	#!/bin/sh
	exe=false
	if [ "x\$1" = x-x ]; then
	  exe=true
	  shift
	fi
	if [ \$# -lt 2 ]; then
	  src="$rootdir/\${1?}"
	  dst="\${1%.in}"; dst="\${dst##*/}"
	else
	  dst="\$1"; shift
	  src="\$*"
	fi

	prefix="$prefix"
	datarootdir="$datarootdir"

	sed \\
	  -e "s@rootdir@$rootdirg" \\
	  -e "s@bindir@$bindirg" \\
	  -e "s@mandir@$mandirg" \\
	  -e "s@prefix@$prefixg" \\
	  -e "s@pkgname@$pkgnameg" \\
	  -e "s@CRAM@$CRAMg" \\
	  -e "s@CRAMFLAGS@$CRAMFLAGSg" \\
	  -e "s@HAVEOPT_SH@$HAVEOPT_SHg" \\
	  -e "s@RST2HTML@$RST2HTMLg" \\
	  -e "s@RST2HTMLFLAGS@$RST2HTMLFLAGSg" \\
	  -e "s@ZSH@$ZSHg" \\
	  "\$src" \\
	> "\$dst"
	if \$exe; then
	  chmod +x "\$dst"
	fi
EOF
  chmod +x $f
} # }}}

rootdir=$(dirname $0)

pkgname=git-dirs

prefix=/usr/local
bindir='${prefix}/bin'
datarootdir='${prefix}/share'
mandir='${datarootdir}/man'
sysconfdir_set=0

for a in "$@"; do
  case $a in
  --bindir=*)       bindir="${a#*=}"      ;;
  --controlpathdir=*)
    controlpathdir="${a#*=}"
  ;;
  --mandir=*)       mandir="${a#*=}"      ;;
  --prefix=*)       prefix="${a#*=}"      ;;

  CRAM=*)           CRAM="${a#*=}"        ;;
  CRAMFLAGS=*)      CRAMFLAGS="${a#*=}"   ;;

  RST2HTML=*)       RST2HTML="${a#*=}"    ;;
  RST2HTMLFLAGS=*)  RST2HTMLFLAGS="${a#*=}" ;;

  HAVEOPT_SH=*)     HAVEOPT_SH="${a#*=}"  ;;
  ZSH=*)            ZSH="${a#*=}"         ;;
  esac
done

findtool CRAM cram
findtool GIT git
findtool HAVEOPT_SH haveopt.sh
findtool RST2HTML rst2html5 rst2html
findtool ZSH zsh

mksubstvars

./substvars -x b/git-versionstring.in
./substvars -x b/mktarball.in
./substvars -x b/rst2html.in
./substvars -x b/runtests.in
./substvars -x b/substver.in

./substvars GNUmakefile.in