dnl Process this file with autoconf to produce a configure script.
AC_INIT(README)
AC_CANONICAL_SYSTEM
AM_INIT_AUTOMAKE(rda, 0.1)
AM_CONFIG_HEADER(config.h:config.in)

dnl automake support
AM_MAINTAINER_MODE
dnl AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL
AC_EXEEXT
AC_LANG_C

dnl Check for types
AC_CHECK_HEADERS(sys/time.h)
AC_HEADER_TIME

dnl Check for host characteristics
AC_C_BIGENDIAN

dnl Check for socket libs
AC_CHECK_LIB(socket, connect)
AC_CHECK_LIB(nsl, gethostbyname)
AC_CHECK_LIB(resolv, gethostbyname)
AC_CHECK_HEADERS(sys/socket.h netinet/in.h netinet/tcp.h arpa/inet.h)

# NOTE: Don't add -Wall or -Wunused, they both include
# -Wunused-parameter which reports bogus warnings.
build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
-Wformat -Wparentheses -Wpointer-arith"
# Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
# -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
# -Wchar-subscripts -Wuninitialized -Wtraditional -Wshadow -Wcast-qual
# -Wcast-align -Wwrite-strings -Wconversion -Wstrict-prototypes
# -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
# -Woverloaded-virtual -Winline -Werror"
AC_ARG_ENABLE(build-warnings,
[  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
[case "${enableval}" in
  yes)	;;
  no)	build_warnings="-w";;
  ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
        build_warnings="${build_warnings} ${t}";;
  *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
        build_warnings="${t} ${build_warnings}";;
  *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac
if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
  echo "Setting compiler warning flags = $build_warnings" 6>&1
fi])dnl
AC_ARG_ENABLE(rda-build-warnings,
[  --enable-rda-build-warnings Enable RDA specific build-time compiler warnings if gcc is used],
[case "${enableval}" in
  yes)	;;
  no)	build_warnings="-w";;
  ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
        build_warnings="${build_warnings} ${t}";;
  *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
        build_warnings="${t} ${build_warnings}";;
  *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac
if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
  echo "Setting LIBREMOTE specific compiler warning flags = $build_warnings" 6>&1
fi])dnl
WARN_CFLAGS=""
WERROR_CFLAGS=""
if test "x${build_warnings}" != x -a "x$GCC" = xyes
then
    AC_MSG_CHECKING(compiler warning flags)
    # Separate out the -Werror flag as some files just cannot be
    # compiled with it enabled.
    for w in ${build_warnings}; do
	case $w in
	-Werr*) WERROR_CFLAGS=-Werror ;;
	*) # Check that GCC accepts it
	    if $CC $w 2>&1 | grep 'unrecognized option' > /dev/null; then
		:
	    else
		WARN_CFLAGS="${WARN_CFLAGS} $w"
	    fi
	esac
    done
    AC_MSG_RESULT(${WARN_CFLAGS}${WERROR_CFLAGS})
fi
AC_SUBST(WARN_CFLAGS)
AC_SUBST(WERROR_CFLAGS)

# Add target dependent subdirectories here
targ_subdirs=
case "$target" in
   *linux*)
      targ_subdirs="$targ_subdirs unix"
      AC_CONFIG_SUBDIRS(unix)
   ;;
esac

dnl $targ_subdirs is expanded at configure run time
AC_SUBST(targ_subdirs)

ZW_GNU_GETTEXT_SISTER_DIR

dnl Outputs
AC_OUTPUT(Makefile lib/Makefile samples/Makefile qe/Makefile)