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ezstream/m4/libvorbis.m4
moritz 9acbffc2dd Overhaul the ezstream build system, using my own library of autoconf macros.
There are a few benefits to this, but the main reason is consistency and me
completely understanding what's going on. Regressions are not expected, but
wouldn't surprise either ... this needs lots of testing.


git-svn-id: https://svn.xiph.org/trunk/ezstream@15776 0101bb08-14d6-0310-b084-bc0e0c8e3800
2009-03-16 00:08:31 +00:00

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dnl $Id: libvorbis.m4 735 2008-11-01 18:34:34Z mgrimm $
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"${prefix}" = "xNONE"; then
ax_check_libvorbis_prefix="/usr/local"
else
ax_check_libvorbis_prefix="${prefix}"
fi
if test -z "${VORBIS_CFLAGS}"; then
VORBIS_CFLAGS="`${PKG_CONFIG} --cflags-only-other vorbis`"
fi
if test -z "${VORBIS_CPPFLAGS}"; then
VORBIS_CPPFLAGS="`${PKG_CONFIG} --cflags-only-I vorbis`"
fi
if test -z "${VORBIS_LDFLAGS}"; then
VORBIS_LDFLAGS="\
`${PKG_CONFIG} --libs-only-L vorbis` \
`${PKG_CONFIG} --libs-only-other vorbis` \
"
fi
])
AC_DEFUN([AX_CHECK_LIBVORBIS],
[
AC_REQUIRE([_AX_CHECK_VORBIS_OPTS])
AC_ARG_VAR([LIBVORBIS_LIBS],
[libraries to use for libvorbis])
AC_CACHE_VAL([local_cv_have_lib_libvorbis],
[
local_cv_have_lib_libvorbis=no
PKG_CONFIG_PATH="${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 $1], [
dnl ##########################
libvorbis_libs_autodetect=no
if test -z "${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])
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 $1], [
dnl ##########################
libvorbisfile_libs_autodetect=no
if test -z "${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])
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 $1], [
dnl ##########################
libvorbisenc_libs_autodetect=no
if test -z "${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])
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
])