# Configure paths for libspeex

# updated by Karl Heyes 02-Feb-2004

dnl XIPH_PATH_SPEEX([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])

dnl Test for libspeex, and define SPEEX_CFLAGS SPEEX_LIBS

dnl SPEEX_SPEEXENC_LIBS SPEEX_SPEEXFILE_LIBS SPEEX_LDFLAGS

dnl

AC_DEFUN([XIPH_PATH_SPEEX],

[

AC_REQUIRE([XIPH_PATH_OGG])

dnl Get the cflags and libraries for speex

dnl

AC_ARG_VAR([SPEEX],[path to speex installation])

AC_ARG_WITH(speex,

    AC_HELP_STRING([--with-speex=PREFIX],

        [Prefix where libspeex is installed (optional)]),

    speex_prefix="$withval",

    speex_prefix="$SPEEX_PREFIX"

    )

if test "x$with_speex" = "xno"

then

  AC_MSG_RESULT([Speex support disabled by request])

else

  if test "x$speex_prefix" = "x" -o "x$speex_prefix" = "xyes"; then

      if test "x$prefix" = "xNONE"; then

          speex_prefix="/usr/local"

      else

          speex_prefix="$prefix"

      fi

  fi

  SPEEX_CFLAGS="$OGG_CFLAGS"

  SPEEX_LDFLAGS="$OGG_LDFLAGS"

  if test "x$speex_prefix" != "x$ogg_prefix"; then

      XIPH_GCC_WARNING(-I"$speex_prefix/include",,

              [SPEEX_CFLAGS="$SPEEX_CFLAGS -I$speex_prefix/include"

              SPEEX_LDFLAGS="-L$speex_prefix/lib $SPEEX_LDFLAGS"

              ])

  fi

  SPEEX_LIBS="-lspeex"

  xt_save_LIBS="$LIBS"

  xt_save_LDFLAGS="$LDFLAGS"

  LDFLAGS="$LDFLAGS $SPEEX_LDFLAGS"

  LIBS="$LIBS $SPEEX_LIBS"

  xt_have_speex="yes"

  AC_MSG_CHECKING([for libspeex])

  AC_TRY_LINK_FUNC(ogg_stream_init, [AC_MSG_RESULT([ok])],

          [LIBS="$LIBS $OGG_LIBS"

          AC_TRY_LINK_FUNC(ogg_stream_init,

              [SPEEX_LIBS="$SPEEX_LIBS $OGG_LIBS"],

              [xt_have_speex="no"])

          ])

  if test "x$xt_have_speex" = "xyes"

  then

      AC_LINK_IFELSE([AC_LANG_PROGRAM(

                  [#include <speex/speex_header.h>],

                  [void *p = speex_packet_to_header;])],

              [],

              [xt_have_speex="no"])

  fi

  LIBS="$xt_save_LIBS"

  LDFLAGS="$xt_save_LDFLAGS"

  if test "x$xt_have_speex" = "xyes"

  then

      AC_MSG_RESULT([ok])

      AC_DEFINE([HAVE_SPEEX],[1],[Define if Speex support is available])

      $1

  else

      ifelse([$2], , AC_MSG_ERROR([Unable to link to libspeex]), [$2])

      SPEEX_CFLAGS=""

      SPEEX_LDFLAGS=""

      SPEEX_LIBS=""

  fi

  AC_SUBST(SPEEX_CFLAGS)

  AC_SUBST(SPEEX_LDFLAGS)

  AC_SUBST(SPEEX_LIBS)

fi

])