AC_INIT(vsound.c)

AC_CANONICAL_SYSTEM

AM_INIT_AUTOMAKE(vsound, 0.5)
AM_CONFIG_HEADER(config.h)

AC_PROG_CC
AC_PROG_CPP

AC_CHECK_HEADERS(endian.h)
AC_C_FIND_ENDIAN_NESS

AC_ARG_ENABLE(debug, [  --enable-debug          enable debugging ],
        ac_arg_debug="$enableval", ac_arg_debug="N")

dnl We only want the shared version of this library.  The static one is of
dnl no use to us.  (If a shared library can't be built, there isn't much
dnl chance that this program will work, anyway).
AM_DISABLE_STATIC
AM_PROG_LIBTOOL
AC_PROG_INSTALL

AC_CHECK_PROG(SOX, sox, sox, no)
if test "$SOX" = "no"; then
  AC_MSG_ERROR(could not find the sox program)
fi

AC_CHECK_HEADERS(soundcard.h sys/soundcard.h machine/soundcard.h)

if test "${ac_cv_header_sys_soundcard_h}" = "no" &&
   test "${ac_cv_header_soundcard_h}" = "no" &&
   test "${ac_cv_header_machine_soundcard_h}" = "no"; then
  AC_MSG_ERROR(could not find required OSS header files)
fi

dlopen_found=no
DL_LIB=
AC_CHECK_FUNC(dlopen, dlopen_found=yes,
  AC_CHECK_LIB(dl, dlopen, dlopen_found=yes DL_LIB=-ldl))
AC_SUBST(DL_LIB)

if test "$dlopen_found" = no; then
  AC_MSG_ERROR(could not find dlopen function)
fi

if test "$ac_cv_prog_gcc" = yes ; then
	CFLAGS="-g -O2 -Wall -Wstrict-prototypes -pipe"
fi

if test "$ac_arg_debug" = yes; then
	echo "enabling debug"
	CFLAGS="$CFLAGS -DENABLE_DEBUG "
fi

AC_OUTPUT(Makefile vsound)