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ezstream/m4/libshout.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: libshout.m4 948 2009-03-15 17:59:37Z mgrimm $
dnl # Check for a working installation of libshout.
dnl # Provides appropriate --with configuration options, fills and substitutes
dnl # the LIBSHOUT_CFLAGS, LIBSHOUT_CPPFLAGS, LIBSHOUT_LDFLAGS and
dnl # LIBSHOUT_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 # For LIBSHOUT_CFLAGS, LIBSHOUT_CPPFLAGS, LIBSHOUT_LDFLAGS and
dnl # LIBSHOUT_LIBS:
dnl # AX_CHECK_LIBSHOUT([LIBSHOUT-VERSION], [ACTION-IF-FOUND],
dnl # [ACTION-IF-NOT-FOUND])
AC_DEFUN([AX_CHECK_LIBSHOUT],
[
AC_REQUIRE([PKG_PROG_PKG_CONFIG])
AC_REQUIRE([AC_PROG_FGREP])
AC_ARG_VAR([LIBSHOUT_CFLAGS],
[C compiler flags for libshout])
AC_ARG_VAR([LIBSHOUT_CPPFLAGS],
[C preprocessor flags for libshout])
AC_ARG_VAR([LIBSHOUT_LDFLAGS],
[linker flags for libshout])
AC_ARG_VAR([LIBSHOUT_LIBS],
[libraries to use for libshout])
if test x"${prefix}" = "xNONE"; then
ax_check_libshout_prefix="/usr/local"
else
ax_check_libshout_prefix="${prefix}"
fi
AC_CACHE_VAL([local_cv_have_lib_libshout],
[
local_cv_have_lib_libshout=no
PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:${ax_check_libshout_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([shout $1], [
dnl ##########################
libshout_libs_autodetect=no
if test -z "${LIBSHOUT_CFLAGS}"; then
LIBSHOUT_CFLAGS="`${PKG_CONFIG} --cflags-only-other shout`"
fi
if test -z "${LIBSHOUT_CPPFLAGS}"; then
LIBSHOUT_CPPFLAGS="`${PKG_CONFIG} --cflags-only-I shout`"
fi
if test -z "${LIBSHOUT_LDFLAGS}"; then
LIBSHOUT_LDFLAGS="\
`${PKG_CONFIG} --libs-only-L shout` \
`${PKG_CONFIG} --libs-only-other shout` \
"
fi
if test -z "${LIBSHOUT_LIBS}"; then
LIBSHOUT_LIBS="`${PKG_CONFIG} --libs-only-l shout`"
libshout_libs_autodetect=yes
fi
# If libshout required libm, make sure that it is listed at the end:
if test "${libshout_libs_autodetect}" = "yes"; then
if test -n "`echo ${LIBSHOUT_LIBS} | ${FGREP} -e ' -lm'`"; then
xt_shout_TEMP="`echo ${LIBSHOUT_LIBS} | sed -e 's, -lm,,g'`"
LIBSHOUT_LIBS="${xt_shout_TEMP} -lm"
fi
fi
ax_check_libshout_save_CFLAGS="${CFLAGS}"
ax_check_libshout_save_CPPFLAGS="${CPPFLAGS}"
ax_check_libshout_save_LDFLAGS="${LDFLAGS}"
ax_check_libshout_save_LIBS="${LIBS}"
AC_LANG_PUSH([C])
CFLAGS="${CFLAGS} ${LIBSHOUT_CFLAGS}"
CPPFLAGS="${CPPFLAGS} ${LIBSHOUT_CPPFLAGS}"
LDFLAGS="${LDFLAGS} ${LIBSHOUT_LDFLAGS}"
LIBS="${LIBSHOUT_LIBS} ${LIBS}"
AC_CHECK_HEADER([shout/shout.h],
[
AC_MSG_CHECKING([if libshout works])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <shout/shout.h>
]],
[[
shout_new();
]]
)],
[
AC_MSG_RESULT([yes])
local_cv_have_lib_libshout=yes
],
[
AC_MSG_RESULT([no])
]
)
])
CFLAGS="${ax_check_libshout_save_CFLAGS}"
CPPFLAGS="${ax_check_libshout_save_CPPFLAGS}"
LDFLAGS="${ax_check_libshout_save_LDFLAGS}"
LIBS="${ax_check_libshout_save_LIBS}"
AC_LANG_POP([C])
dnl ####### END CHECK ########
], [])
dnl ##########################
])
AC_MSG_CHECKING([for libshout $1])
if test x"${local_cv_have_lib_libshout}" = "xyes"; then
AC_MSG_RESULT([yes])
:
$2
else
AC_MSG_RESULT([no])
:
$3
fi
])