#!/bin/sh
#
# configure: Automatically configure install locations for x11-ssh-askpass
#
# by Jim Knoble <jmknoble@pobox.com>
# Copyright (C) 2001 Jim Knoble
# 
# Disclaimer:
# 
# This software is provided "as is", without warranty of any kind,
# express or implied, including but not limited to the warranties of
# merchantability, fitness for a particular purpose and
# noninfringement. In no event shall the author(s) be liable for any
# claim, damages or other liability, whether in an action of
# contract, tort or otherwise, arising from, out of or in connection
# with the software or the use or other dealings in the software.
# 
# Permission to use, copy, modify, distribute, and sell this software
# and its documentation for any purpose is hereby granted without
# fee, provided that the above copyright notice appear in all copies
# and that both that copyright notice and this permission notice
# appear in supporting documentation.

PrintHelp() {
  cat <<EOF

Usage: $0 [options]

Options:
  --prefix=PREFIX           install architecture-independent files in PREFIX
                            [${default_prefix}]
  --exec-prefix=EPREFIX     install architecture-dependent files in EPREFIX
                            [same as prefix]
  --libexecdir=DIR          program executables in DIR [EPREFIX/libexec]
  --mandir=DIR              man documentation in DIR [PREFIX/man]
  
  --bindir=DIR              ignored
  --sbindir=DIR             ignored
  --datadir=DIR             ignored
  --sysconfdir=DIR          ignored
  --sharedstatedir=DIR      ignored
  --localstatedir=DIR       ignored
  --libdir=DIR              ignored
  --includedir=DIR          ignored
  --infodir=DIR             ignored

  --with-app-defaults=FILE          Use application defaults from FILE
                                    [${default_app_defaults}]
  --with-app-defaults-dir=DIR       Install application defaults file into DIR
                                    [wherever imake prefers]
  --disable-installing-app-defaults Do not install the application defaults
                                    file (overrides --with-app-defaults-dir)
				    [enabled]

EOF
  exit 1
}

GetOptionArg() {
  opt="$1"
  if [ -z "${opt}" ]; then
    return
  fi
  varname=`echo "${opt}" |sed -e 's/^--//' -e 's/=.*$//' -e 'y/-/_/'`
  case "${opt}" in
    *=*)
      arg=`echo "${opt}" |sed -e 's/^[^=]*=//'`
      eval "${varname}=\"${arg}\""
    ;;
  esac
}

GetWithOption() {
  opt="$1"
  if [ -z "${opt}" ]; then
    return
  fi
  varname=`echo "${opt}" |sed -e 's/^--with-//' -e 's/=.*$//' -e 'y/-/_/'`
  case "${opt}" in
    --with-*=*)
      arg=`echo "${opt}" |sed -e 's/^[^=]*=//'`
      eval "${varname}=\"${arg}\""
    ;;
  esac
}

GetEnableOption() {
  opt="$1"
  if [ -z "${opt}" ]; then
    return
  fi
  varname=`echo "${opt}" |sed -e 's/^--dis/en/' -e 's/^--//' -e 's/=.*$//' \
    -e 'y/-/_/'`
  case "${opt}" in
    --enable-*=*)
      arg=`echo "${opt}" |sed -e 's/^[^=]*=//'`
    ;;
    --enable-*)
      arg=yes
    ;;
    --disable-*)
      arg=no
    ;;
    *)
      return
    ;;
  esac
  case "${arg}" in
    1|[yY]|[tT]|[oO][nN]|[yY][eE][sS]|[tT][rR][uU][eE]|[eE][nN][aA][bB][lL][eE][dD])
      eval "${varname}=yes"
    ;;
    0|[nN]|[fF]|[oO][fF][fF]|[nN][oO]|[fF][aA][lL][sS][eE]|[dD][iI][sS][aA][bB][lL][eE][dD])
      eval "${varname}=no"
    ;;
    *)
      echo "$0: error: I don't understand '${arg}' (from '${opt}')."
      exit 1
    ;;
  esac
}

UseDefaults () {
  unset CC
  unset CFLAGS
  unset LDFLAGS

  prefix=''
  exec_prefix=''
  libexecdir=''
  mandir=''
  app_defaults=''
  app_defaults_dir=''
  enable_installing_app_defaults=''
}

IMAKEFILE_SRC="Imakefile.in"
IMAKEFILE_DST="Imakefile"

default_default_app_defaults_dir='$(XAPPLOADDIR)'

default_prefix='/usr/local'

if [ -f ../configure ]; then
  eval `cat ../configure |awk '/^[ 	]*ac_default_prefix=/ { print $0 }'`
fi
if [ -n "${ac_default_prefix}" ]; then
  default_prefix="${ac_default_prefix}"
fi

default_exec_prefix='${prefix}'
default_libexecdir='${exec_prefix}/libexec'
default_mandir='${prefix}/man'
default_app_defaults='SshAskpass-default.ad'
default_app_defaults_dir='${default_default_app_defaults_dir}'
default_enable_installing_app_defaults='yes'

prefix=''
exec_prefix=''
libexecdir=''
mandir=''
app_defaults=''
app_defaults_dir=''
enable_installing_app_defaults=''

while [ $# -gt 0 ]; do
  case "$1" in
    -h|--help|-help|-\?)
      PrintHelp
    ;;
    -d|--default|--defaults|--use-defaults)
      UseDefaults
      break
    ;;
    --prefix=*|--exec-prefix=*|--libexecdir=*|--mandir=*)
      GetOptionArg "$1"
      shift
    ;;
    --with-app-defaults=*|--with-app-defaults-dir=*)
      GetWithOption "$1"
      shift
    ;;
    --enable-installing-app-defaults|--enable-installing-app-defaults=*|--disable-installing-app-defaults)
      GetEnableOption "$1"
      shift
    ;;
    -*)
      shift
    ;;
    *)
      break
    ;;
  esac
done

for i in \
  prefix \
  exec_prefix \
  libexecdir \
  mandir \
  app_defaults \
  app_defaults_dir \
  enable_installing_app_defaults \
; do
  if eval [ -z \"\${"${i}"}\" ]; then
    eval ${i}=\"\`eval echo \${default_"${i}"}\`\"
  fi
done

if [ ! -f "${IMAKEFILE_SRC}" ]; then
  echo "$0: error: I can't seem to find ${IMAKEFILE_SRC}."
  echo "$0: Are you sure you're running me from the x11-ssh-askpass source directory?"
  exit 1
fi

cat "${IMAKEFILE_SRC}" |sed \
  -e 's#^\([ 	]*BINDIR[ 	]*=\).*$#\1 '"${libexecdir}"'#' \
  -e 's#^\([ 	]*MANPATH[ 	]*=\).*$#\1 '"${mandir}"'#' \
  -e 's#^\([ 	]*APPDEFDIR[ 	]*=\).*$#\1 '"${app_defaults_dir}"'#' \
  -e 's#^\([ 	]*APP_DEFAULTS[ 	]*=\).*#\1 '"${app_defaults}"'#' \
  >"${IMAKEFILE_DST}.tmp" \
&& mv -f "${IMAKEFILE_DST}.tmp" "${IMAKEFILE_DST}"

case "${enable_installing_app_defaults}" in
  yes)
    cat "${IMAKEFILE_DST}" |sed \
      -e 's#^[ ]*\(XCOMM[ 	]\+\)\?\(install::[ 	]\+install-app-defaults.*\)$#\2#' \
      >"${IMAKEFILE_DST}.tmp" \
    && mv -f "${IMAKEFILE_DST}.tmp" "${IMAKEFILE_DST}"
  ;;
  no)
    cat "${IMAKEFILE_DST}" |sed \
      -e 's#^[ ]*\(XCOMM[ 	]\+\)\?\(install::[ 	]\+install-app-defaults.*\)$#XCOMM \2#' \
      >"${IMAKEFILE_DST}.tmp" \
    && mv -f "${IMAKEFILE_DST}.tmp" "${IMAKEFILE_DST}"
  ;;
esac

if [ -n "${CC}" ]; then
  cat "${IMAKEFILE_DST}" |sed \
    -e 's#^[ 	]*XCOMM[ 	]\+\(CC[ 	]*=\).*$#\1 '"${CC}"'#' \
    >"${IMAKEFILE_DST}.tmp" \
  && mv -f "${IMAKEFILE_DST}.tmp" "${IMAKEFILE_DST}"
else
  CC='default'
fi

if [ -n "${CFLAGS}" ]; then
  cat "${IMAKEFILE_DST}" |sed \
    -e 's#^[ 	]*XCOMM[ 	]\+\(CDEBUGFLAGS[ 	]*=\).*$#\1 '"${CFLAGS}"'#' \
    >"${IMAKEFILE_DST}.tmp" \
  && mv -f "${IMAKEFILE_DST}.tmp" "${IMAKEFILE_DST}"
else
  CFLAGS='default'
fi

if [ -n "${LDFLAGS}" ]; then
  cat "${IMAKEFILE_DST}" |sed \
    -e 's#^[ 	]*XCOMM[ 	]\+\(LOCAL_LDFLAGS[ 	]*=\).*$#\1 '"${LDFLAGS}"'#' \
    >"${IMAKEFILE_DST}.tmp" \
  && mv -f "${IMAKEFILE_DST}.tmp" "${IMAKEFILE_DST}"
else
  LDFLAGS='default'
fi

if [ "${app_defaults_dir}" = "${default_default_app_defaults_dir}" ]; then
  app_defaults_dir='default'
fi

cat <<EOF

x11-ssh-askpass has been configured with the following options:

                  Askpass directory: ${libexecdir}
                        Manual page: ${mandir}/man1
          Application defaults file: ${app_defaults}
     Application defaults directory: ${app_defaults_dir}
  Install application defaults file: ${enable_installing_app_defaults}

        Compiler: ${CC}
  Compiler flags: ${CFLAGS}
    Linker flags: ${LDFLAGS}

You may now create the Makefile and build x11-ssh-askpass using the
following commands:

        xmkmf
	make includes
	make

EOF