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ezstream/m4/libvorbis.m4
2009-03-17 18:20:58 +00:00

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dnl $Id$
dnl # Check for working installations of libvorbis, libvorbisfile and
dnl # libvorbisenc.
dnl # Provides appropriate --with configuration options, fills and substitutes
dnl # the VORBIS_CFLAGS, VORBIS_CPPFLAGS, VORBIS_LDFLAGS, LIBVORBIS_LIBS,
dnl # LIBVORBISENC_LIBS and LIBVORBISFILE_LIBS variables accordingly.
dnl # Copyright (c) 2008 Moritz Grimm <mgrimm@mrsserver.net>
dnl #
dnl # Permission to use, copy, modify, and distribute this software for any
dnl # purpose with or without fee is hereby granted, provided that the above
dnl # copyright notice and this permission notice appear in all copies.
dnl #
dnl # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
dnl # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
dnl # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
dnl # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
dnl # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
dnl # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
dnl # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
dnl # Each of these macros supply VORBIS_CFLAGS, VORBIS_CPPFLAGS and
dnl # VORBIS_LDFLAGS.
dnl # For LIBVORBIS_LIBS:
dnl # AX_CHECK_LIBVORBIS([VORBISLIBS-VERSION], [ACTION-IF-FOUND],
dnl # [ACTION-IF-NOT-FOUND])
dnl # For LIBVORBISENC_LIBS:
dnl # AX_CHECK_LIBVORBISENC([VORBISLIBS-VERSION], [ACTION-IF-FOUND],
dnl # [ACTION-IF-NOT-FOUND])
dnl # For LIBVORBISFILE_LIBS:
dnl # AX_CHECK_LIBVORBISFILE([VORBISLIBS-VERSION], [ACTION-IF-FOUND],
dnl # [ACTION-IF-NOT-FOUND])
AC_DEFUN([_AX_CHECK_VORBIS_OPTS],
[
AC_REQUIRE([PKG_PROG_PKG_CONFIG])
AC_ARG_VAR([VORBIS_CFLAGS],
[C compiler flags for the Vorbis libraries])
AC_ARG_VAR([VORBIS_CPPFLAGS],
[C preprocessor flags for the Vorbis libraries])
AC_ARG_VAR([VORBIS_LDFLAGS],
[linker flags for the Vorbis libraries])
if test x"${prefix}" = "xNONE"; then
have_libvorbis_prefix="/usr/local"
else
have_libvorbis_prefix="${prefix}"
fi
have_libvorbis_includes=""
have_libvorbis_libs=""
want_libvorbis="auto"
AC_ARG_WITH([libvorbis],
[AS_HELP_STRING([--with-libvorbis=PFX],
[prefix where the Vorbis library header files and library are installed (default: autodetect)])],
[
case "${withval}" in
yes)
want_libvorbis="yes"
;;
no)
want_libvorbis="no"
;;
*)
have_libvorbis_prefix="${withval}"
want_libvorbis="yes"
;;
esac
]
)
AC_ARG_WITH([libvorbis-includes],
[AS_HELP_STRING([--with-libvorbis-includes=DIR],
[directory where Vorbis library header files are installed (optional)]) ],
[
case "${withval}" in
yes|no) ;;
*)
have_libvorbis_includes="${withval}"
;;
esac
]
)
AC_ARG_WITH([libvorbis-libs],
[AS_HELP_STRING([--with-libvorbis-libs=DIR],
[directory where the Vorbis libraries are installed (optional)]) ],
[
case "${withval}" in
yes|no) ;;
*)
have_libvorbis_libs="${withval}"
;;
esac
]
)
AC_CACHE_VAL([local_cv_have_lib_libvorbis_opts],
[
if test -z "${VORBIS_CFLAGS}"; then
VORBIS_CFLAGS="`${PKG_CONFIG} --cflags-only-other vorbis`"
fi
if test -n "${VORBIS_CPPFLAGS}"; then
if test x"${have_libvorbis_includes}" != "x"; then
VORBIS_CPPFLAGS="${VORBIS_CPPFLAGS} -I${have_libvorbis_includes}"
fi
else
if test x"${have_libvorbis_includes}" != "x"; then
VORBIS_CPPFLAGS="-I${have_libvorbis_includes}"
else
if test x"${want_libvorbis}" = "xauto"; then
VORBIS_CPPFLAGS="`${PKG_CONFIG} --cflags-only-I vorbis`"
else
VORBIS_CPPFLAGS="-I${have_libvorbis_prefix}/include"
fi
fi
fi
if test -n "${VORBIS_LDFLAGS}"; then
if test x"${have_libvorbis_libs}" != "x"; then
VORBIS_LDFLAGS="-L${have_libvorbis_libs} ${VORBIS_LDFLAGS}"
fi
else
if test -n "${have_libvorbis_libs}"; then
VORBIS_LDFLAGS="-L${have_libvorbis_libs}"
else
if test x"${want_libvorbis}" = "xauto"; then
VORBIS_LDFLAGS=" \
`${PKG_CONFIG} --libs-only-L vorbis` \
`${PKG_CONFIG} --libs-only-other vorbis` \
"
else
VORBIS_LDFLAGS="-L${have_libvorbis_prefix}/lib"
fi
fi
fi
local_cv_have_lib_libvorbis_opts=yes
])
])
AC_DEFUN([AX_CHECK_LIBVORBIS],
[
AC_REQUIRE([_AX_CHECK_VORBIS_OPTS])
AC_ARG_VAR([LIBVORBIS_LIBS],
[libraries to use for libvorbis])
AC_CACHE_VAL([local_cv_have_lib_libvorbis],
[
local_cv_have_lib_libvorbis=no
PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:${ax_check_libogg_prefix}/lib/pkgconfig"
if test -z "${PKG_CONFIG}"; then
AC_MSG_ERROR([The pkg-config utility is required.], [1])
fi
dnl ####### BEGIN CHECK ######
PKG_CHECK_EXISTS([vorbis $1], [
dnl ##########################
if test x"${want_libvorbis}" != "xno"; then # want_libvorbis != no
libvorbis_libs_autodetect=no
if test -z "${LIBVORBIS_LIBS}"; then
LIBVORBIS_LIBS="`${PKG_CONFIG} --libs-only-l vorbis`"
libvorbis_libs_autodetect=yes
fi
ax_check_libvorbis_save_CFLAGS="${CFLAGS}"
ax_check_libvorbis_save_CPPFLAGS="${CPPFLAGS}"
ax_check_libvorbis_save_LDFLAGS="${LDFLAGS}"
ax_check_libvorbis_save_LIBS="${LIBS}"
AC_LANG_PUSH([C])
CFLAGS="${CFLAGS} ${VORBIS_CFLAGS}"
CPPFLAGS="${CPPFLAGS} ${VORBIS_CPPFLAGS}"
LDFLAGS="${LDFLAGS} ${VORBIS_LDFLAGS}"
LIBS="${LIBVORBIS_LIBS} ${LIBS}"
AC_CHECK_HEADER([vorbis/codec.h],
[
AC_MSG_CHECKING([if libvorbis works])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <stdlib.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>
]],
[[
vorbis_info_init(NULL);
]]
)],
[
AC_MSG_RESULT([yes])
local_cv_have_lib_libvorbis=yes
],
[
AC_MSG_RESULT([no])
]
)
AC_CHECK_TYPE([struct ovectl_ratemanage_arg],
[],
[AC_MSG_ERROR([These Vorbis libraries are too old, please upgrade.], [1])],
[
#include <stdlib.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>
#include <vorbis/vorbisenc.h>
]
)
])
CFLAGS="${ax_check_libvorbis_save_CFLAGS}"
CPPFLAGS="${ax_check_libvorbis_save_CPPFLAGS}"
LDFLAGS="${ax_check_libvorbis_save_LDFLAGS}"
LIBS="${ax_check_libvorbis_save_LIBS}"
AC_LANG_POP([C])
fi # want_libvorbis != no
dnl ####### END CHECK ########
], [])
dnl ##########################
])
AC_MSG_CHECKING([for libvorbis $1])
if test x"${local_cv_have_lib_libvorbis}" = "xyes"; then
AC_MSG_RESULT([yes])
:
$2
else
AC_MSG_RESULT([no])
:
$3
fi
])
AC_DEFUN([AX_CHECK_LIBVORBISFILE],
[
AC_REQUIRE([_AX_CHECK_VORBIS_OPTS])
AC_ARG_VAR([LIBVORBISFILE_LIBS],
[libraries to use for libvorbisfile])
AC_CACHE_VAL([local_cv_have_lib_libvorbisfile],
[
local_cv_have_lib_libvorbisfile=no
PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:${ax_check_libogg_prefix}/lib/pkgconfig"
if test -z "${PKG_CONFIG}"; then
AC_MSG_ERROR([The pkg-config utility is required.], [1])
fi
dnl ####### BEGIN CHECK ######
PKG_CHECK_EXISTS([vorbisfile $1], [
dnl ##########################
if test x"${want_libvorbis}" != "xno"; then # want_libvorbis != no
libvorbisfile_libs_autodetect=no
if test -z "${LIBVORBISFILE_LIBS}"; then
LIBVORBISFILE_LIBS="`${PKG_CONFIG} --libs-only-l vorbisfile`"
libvorbisfile_libs_autodetect=yes
fi
ax_check_libvorbisfile_save_CFLAGS="${CFLAGS}"
ax_check_libvorbisfile_save_CPPFLAGS="${CPPFLAGS}"
ax_check_libvorbisfile_save_LDFLAGS="${LDFLAGS}"
ax_check_libvorbisfile_save_LIBS="${LIBS}"
AC_LANG_PUSH([C])
CFLAGS="${CFLAGS} ${VORBIS_CFLAGS}"
CPPFLAGS="${CPPFLAGS} ${VORBIS_CPPFLAGS}"
LDFLAGS="${LDFLAGS} ${VORBIS_LDFLAGS}"
LIBS="${LIBVORBISFILE_LIBS} ${LIBS}"
AC_CHECK_HEADER([vorbis/vorbisfile.h],
[
AC_MSG_CHECKING([if libvorbisfile works])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <stdlib.h>
#include <vorbis/vorbisfile.h>
]],
[[
ov_open(NULL, NULL, NULL, 0);
]]
)],
[
AC_MSG_RESULT([yes])
local_cv_have_lib_libvorbisfile=yes
],
[
AC_MSG_RESULT([no])
]
)
])
CFLAGS="${ax_check_libvorbisfile_save_CFLAGS}"
CPPFLAGS="${ax_check_libvorbisfile_save_CPPFLAGS}"
LDFLAGS="${ax_check_libvorbisfile_save_LDFLAGS}"
LIBS="${ax_check_libvorbisfile_save_LIBS}"
AC_LANG_POP([C])
fi # want_libvorbis != no
dnl ####### END CHECK ########
], [])
dnl ##########################
])
AC_MSG_CHECKING([for libvorbisfile $1])
if test x"${local_cv_have_lib_libvorbisfile}" = "xyes"; then
AC_MSG_RESULT([yes])
:
$2
else
AC_MSG_RESULT([no])
:
$3
fi
])
AC_DEFUN([AX_CHECK_LIBVORBISENC],
[
AC_REQUIRE([_AX_CHECK_VORBIS_OPTS])
AC_ARG_VAR([LIBVORBISENC_LIBS],
[libraries to use for libvorbisenc])
AC_CACHE_VAL([local_cv_have_lib_libvorbisenc],
[
local_cv_have_lib_libvorbisenc=no
PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:${ax_check_libogg_prefix}/lib/pkgconfig"
if test -z "${PKG_CONFIG}"; then
AC_MSG_ERROR([The pkg-config utility is required.], [1])
fi
dnl ####### BEGIN CHECK ######
PKG_CHECK_EXISTS([vorbisenc $1], [
dnl ##########################
if test x"${want_libvorbis}" != "xno"; then # want_libvorbis != no
libvorbisenc_libs_autodetect=no
if test -z "${LIBVORBISENC_LIBS}"; then
LIBVORBISENC_LIBS="`${PKG_CONFIG} --libs-only-l vorbisenc`"
libvorbisenc_libs_autodetect=yes
fi
ax_check_libvorbisenc_save_CFLAGS="${CFLAGS}"
ax_check_libvorbisenc_save_CPPFLAGS="${CPPFLAGS}"
ax_check_libvorbisenc_save_LDFLAGS="${LDFLAGS}"
ax_check_libvorbisenc_save_LIBS="${LIBS}"
AC_LANG_PUSH([C])
CFLAGS="${CFLAGS} ${VORBIS_CFLAGS}"
CPPFLAGS="${CPPFLAGS} ${VORBIS_CPPFLAGS}"
LDFLAGS="${LDFLAGS} ${VORBIS_LDFLAGS}"
LIBS="${LIBVORBISENC_LIBS} ${LIBS}"
AC_CHECK_HEADER([vorbis/vorbisenc.h],
[
AC_MSG_CHECKING([if libvorbisenc works])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <stdlib.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>
#include <vorbis/vorbisenc.h>
]],
[[
vorbis_encode_init(NULL, 0, 0, 0, 0, 0);
]]
)],
[
AC_MSG_RESULT([yes])
local_cv_have_lib_libvorbisenc=yes
],
[
AC_MSG_RESULT([no])
]
)
])
CFLAGS="${ax_check_libvorbisenc_save_CFLAGS}"
CPPFLAGS="${ax_check_libvorbisenc_save_CPPFLAGS}"
LDFLAGS="${ax_check_libvorbisenc_save_LDFLAGS}"
LIBS="${ax_check_libvorbisenc_save_LIBS}"
AC_LANG_POP([C])
fi # want_libvorbis != no
dnl ####### END CHECK ########
], [])
dnl ##########################
])
AC_MSG_CHECKING([for libvorbisenc $1])
if test x"${local_cv_have_lib_libvorbisenc}" = "xyes"; then
AC_MSG_RESULT([yes])
:
$2
else
AC_MSG_RESULT([no])
:
$3
fi
])