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configure.in
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configure.in
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dnl $Id: configure.in,v 1.148 2017/08/15 15:16:31 aleidinger Exp $
dnl
dnl
dnl don't forget to set ASM_FOR_ARCH to a space delimited list of
dnl processor architectures, for which assembler routines exist
dnl
dnl
dnl Exported and configured variables:
dnl CC
dnl CFLAGS
dnl LDFLAGS
dnl LDADD
dnl NASM
dnl extra vars for frontend:
dnl FRONTEND_LDFLAGS
dnl FRONTEND_CFLAGS
dnl FRONTEND_LDADD
AC_PREREQ(2.69)
AC_INIT([lame],[3.100],[[email protected]])
AC_CONFIG_SRCDIR([libmp3lame/lame.c])
AC_LANG([C])
dnl check system
AC_CANONICAL_HOST
dnl automake
AM_INIT_AUTOMAKE
AC_CONFIG_HEADERS([config.h])
AH_TOP([
#ifndef LAME_CONFIG_H
#define LAME_CONFIG_H
])
AH_BOTTOM([#endif /* LAME_CONFIG_H */])
AM_MAINTAINER_MODE
AM_MAKE_INCLUDE
dnl check environment
AC_AIX
AC_ISC_POSIX
AC_MINIX
case $host_os in
*cygwin* ) CYGWIN=yes;;
* ) CYGWIN=no;;
esac
dnl libtool
# AC_DISABLE_SHARED
AC_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)
CFLAGS="${ac_save_CFLAGS}"
# increase this when the shared lib becomes totally incompatible
LIB_MAJOR_VERSION=0
# increase this when changes are made, but they are upward compatible
# to previous versions
LIB_MINOR_VERSION=0
dnl # work around for a bug, don't know where it is exactly
if test "${ac_cv_cygwin}" = "yes"; then
if test "${CC}" != "gcc"; then
AC_MSG_ERROR([Please use]
[ CC=gcc ./configure]
[Abort this configure run and add "CC=gcc" or you will]
[see errors and no lame.exe will be build.])
fi
fi
dnl check programs
AC_PROG_CC()
if test "x${GCC}" = "xyes"; then
AC_MSG_CHECKING(compiler)
COMPILER_TYPE="`${CC} --version | head -1 | sed -e '1,$s/version.*//g'`"
case "${COMPILER_TYPE}" in
*gcc*)
AC_MSG_RESULT(gcc)
HAVE_GCC=yes
HAVE_CLANG=no
;;
*clang*)
AC_MSG_RESULT(clang)
HAVE_CLANG=yes
HAVE_GCC=no
;;
*)
AC_MSG_RESULT(unknown)
HAVE_GCC=no
HAVE_CLANG=no
;;
esac
if test "${HAVE_GCC}" = "yes"; then
AC_MSG_CHECKING(version of GCC)
GCC_version="`${CC} --version | sed -n '1s/^[[^ ]]* (.*) //;s/ .*$//;1p'`"
case "${GCC_version}" in
[0-9]*[0-9]*)
AC_MSG_RESULT(${GCC_version})
;;
*)
# probably not gcc...
AC_MSG_RESULT(unknown compiler version pattern, playing safe and disabling gcc optimisations... ${GCC_version})
HAVE_GCC=no
;;
esac
fi
if test "${HAVE_CLANG}" = "yes"; then
AC_MSG_CHECKING(version of clang)
CLANG_version="`${CC} --version | sed -n 's/.*clang version //;s/ .*$//;1p'`"
AC_MSG_RESULT(${CLANG_version})
fi
fi
AC_CHECK_HEADER(dmalloc.h)
if test "${ac_cv_header_dmalloc_h}" = "yes"; then
AM_WITH_DMALLOC
fi
dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS( \
errno.h \
fcntl.h \
limits.h \
stdint.h \
string.h \
sys/soundcard.h \
sys/time.h \
unistd.h \
linux/soundcard.h)
dnl Checks for actually working SSE intrinsics
AC_MSG_CHECKING(working SSE intrinsics)
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <xmmintrin.h>]],
[[_mm_sfence();]])],
[AC_DEFINE([HAVE_XMMINTRIN_H], [1], [Define if SSE intrinsics work.])
ac_cv_header_xmmintrin_h=yes],
[ac_cv_header_xmmintrin_h=no])
AC_MSG_RESULT(${ac_cv_header_xmmintrin_h})
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
if test ${cross_compiling} = "no"; then
AC_C_BIGENDIAN
fi
AC_SYS_LARGEFILE
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(unsigned short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(unsigned long)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(unsigned long long)
AC_CHECK_SIZEOF(float)
AC_CHECK_SIZEOF(double)
if test $ac_cv_sizeof_short -eq 0 \
-o $ac_cv_sizeof_unsigned_short -eq 0 \
-o $ac_cv_sizeof_int -eq 0 \
-o $ac_cv_sizeof_unsigned_int -eq 0 \
-o $ac_cv_sizeof_long -eq 0 \
-o $ac_cv_sizeof_unsigned_long -eq 0 \
-o $ac_cv_sizeof_long_long -eq 0 \
-o $ac_cv_sizeof_unsigned_long_long -eq 0 \
-o $ac_cv_sizeof_float -eq 0 \
-o $ac_cv_sizeof_double -eq 0; then
echo '*** I have a problem determining the size of some variable types. Either'
echo '*** you compiler is broken, or your system+compiler combination is not'
echo '*** supportet by the "autoconf" framework we use to generate this'
echo '*** configure script.'
exit 1
fi
AC_C_LONG_DOUBLE
if test "${ac_cv_c_have_long_double}" = "yes" ; then
AC_CHECK_SIZEOF(long double)
fi
AC_CHECK_TYPES([uint8_t, int8_t, uint16_t, int16_t, uint32_t, int32_t, uint64_t, int64_t])
AH_VERBATIM([HAVE_UINT8_T],
[/* add uint8_t type */
#undef HAVE_UINT8_T
#ifndef HAVE_UINT8_T
typedef unsigned char uint8_t;
#endif])
AH_VERBATIM([HAVE_INT8_T],
[/* add int8_t type */
#undef HAVE_INT8_T
#ifndef HAVE_INT8_T
typedef char int8_t;
#endif])
AH_VERBATIM([HAVE_UINT16_T],
[/* add uint16_t type */
#undef HAVE_UINT16_T
#ifndef HAVE_UINT16_T
typedef unsigned short uint16_t;
#endif])
AH_VERBATIM([HAVE_INT16_T],
[/* add int16_t type */
#undef HAVE_INT16_T
#ifndef HAVE_INT16_T
typedef short int16_t;
#endif])
if test "${HAVE_INT32_T}" = yes; then
AC_DEFINE(A_UINT32_T,unsigned int32_t)
else
if test "${ac_cv_sizeof_unsigned_short}" = "4"; then
AC_DEFINE(A_UINT32_T,unsigned short)
else
if test "${ac_cv_sizeof_unsigned_int}" = "4"; then
AC_DEFINE(A_UINT32_T,unsigned int)
else
if test "${ac_cv_sizeof_unsigned_long}" = "4"; then
AC_DEFINE(A_UINT32_T,unsigned long)
else
AC_MSG_ERROR([CHECK_TYPE_uint32_t - please report to [email protected]])
fi
fi
fi
fi
AH_VERBATIM([HAVE_UINT32_T],
[/* add uint32_t type */
#undef HAVE_UINT32_T
#ifndef HAVE_UINT32_T
#undef A_UINT32_T
typedef A_UINT32_T uint32_t;
#endif])
if test "${ac_cv_sizeof_short}" = "4"; then
AC_DEFINE(A_INT32_T,short)
else
if test "${ac_cv_sizeof_int}" = "4"; then
AC_DEFINE(A_INT32_T,int)
else
if test "${ac_cv_sizeof_long}" = "4"; then
AC_DEFINE(A_INT32_T,long)
else
AC_MSG_ERROR([CHECK_TYPE_int32_t - please report to [email protected]])
fi
fi
fi
AH_VERBATIM([HAVE_INT32_T],
[/* add int32_t type */
#undef HAVE_INT32_T
#ifndef HAVE_INT32_T
#undef A_INT32_T
typedef A_INT32_T int32_t;
#endif])
if test "${HAVE_INT64_T}" = yes; then
AC_DEFINE(A_UINT64_T,unsigned int64_t)
else
if test "${ac_cv_sizeof_unsigned_int}" = "8"; then
AC_DEFINE(A_UINT64_T,unsigned int)
else
if test "${ac_cv_sizeof_unsigned_long}" = "8"; then
AC_DEFINE(A_UINT64_T,unsigned long)
else
if test "${ac_cv_sizeof_unsigned_long_long}" = "8"; then
AC_DEFINE(A_UINT64_T,unsigned long long)
else
AC_MSG_ERROR([CHECK_TYPE_uint64_t - please report to [email protected]])
fi
fi
fi
fi
AH_VERBATIM([HAVE_UINT64_T],
[/* add uint64_t type */
#undef HAVE_UINT64_T
#ifndef HAVE_UINT64_T
#undef A_UINT64_T
typedef A_UINT64_T uint64_t;
#endif])
if test "${ac_cv_sizeof_int}" = "8"; then
AC_DEFINE(A_INT64_T,int)
else
if test "${ac_cv_sizeof_long}" = "8"; then
AC_DEFINE(A_INT64_T,long)
else
if test "${ac_cv_sizeof_long_long}" = "8"; then
AC_DEFINE(A_INT64_T,long long)
else
AC_MSG_ERROR([CHECK_TYPE_int64_t - please report to [email protected]])
fi
fi
fi
AH_VERBATIM([HAVE_INT64_T],
[/* add int64_t type */
#undef HAVE_INT64_T
#ifndef HAVE_INT64_T
#undef A_INT64_T
typedef A_INT64_T int64_t;
#endif])
alex_IEEE854_FLOAT80
if test "${alex_cv_ieee854_float80}" = "yes" ; then
if test "${ac_cv_c_long_double}" = "yes" ; then
AC_CHECK_TYPES(ieee854_float80_t, long double)
AH_VERBATIM([HAVE_IEEE854_FLOAT80_T],
[/* add ieee854_float80_t type */
#undef HAVE_IEEE854_FLOAT80_T
#ifndef HAVE_IEEE854_FLOAT80_T
typedef long double ieee854_float80_t;
#endif])
AC_DEFINE(HAVE_IEEE854_FLOAT80, 1, [system has 80 bit floats])
fi
fi
AC_CHECK_TYPES([ieee754_float64_t, ieee754_float32_t])
AH_VERBATIM([HAVE_IEEE754_FLOAT64_T],
[/* add ieee754_float64_t type */
#undef HAVE_IEEE754_FLOAT64_T
#ifndef HAVE_IEEE754_FLOAT64_T
typedef double ieee754_float64_t;
#endif])
AH_VERBATIM([HAVE_IEEE754_FLOAT32_T],
[/* add ieee754_float32_t type */
#undef HAVE_IEEE754_FLOAT32_T
#ifndef HAVE_IEEE754_FLOAT32_T
typedef float ieee754_float32_t;
#endif])
AC_DEFINE(LAME_LIBRARY_BUILD, 1, [requested by Frank, seems to be temporary needed for a smooth transition])
if test ${cross_compiling} = "yes"; then
AC_MSG_WARN([]
[**************************************************************************]
[* *]
[* You are cross compiling: *]
[* - I did not have a change to determine *]
[* + the size of: *]
[* - short *]
[* - unsigned short *]
[* - int *]
[* - unsigned int *]
[* - long *]
[* - unsigned long *]
[* - float *]
[* - double *]
[* - long double *]
[* + the endianess of the system *]
[* - You have to provide appropriate defines for them in config.h, e.g. *]
[* + define SIZEOF_SHORT to 2 if the size of a short is 2 *]
[* + define WORDS_BIGENDIAN if your system is a big endian system *]
[* *]
[**************************************************************************])
fi
AC_TYPE_SIZE_T
AC_HEADER_TIME
dnl Checks for library functions.
AC_FUNC_ALLOCA
AC_CHECK_FUNCS(gettimeofday strtol)
if test "X${ac_cv_func_strtol}" != "Xyes"; then
AC_MSG_ERROR([function strtol is mandatory])
fi
dnl Check if we are on a mingw system, which needs libwsock32
SOCKETFUNCTION=unknown
AC_CHECK_FUNCS(socket)
if test $ac_cv_func_socket = no; then
# maybe it is in libsocket
AC_CHECK_LIB(socket, socket, [AC_DEFINE(HAVE_SOCKET)
LIBS="$LIBS -lsocket"])
if test "X${ac_cv_lib_socket_socket}" != "Xyes"; then
SOCKETFUNCTION=NO
else
case ${host_os} in
*solaris*)
LIBS="$LIBS -lnsl"
;;
esac
fi
fi
dnl Initialize configuration variables for the Makefile
CFLAGS=${CFLAGS}
CONFIG_DEFS=${CONFIG_DEFS}
NASM=
INCLUDES="-I\$(top_srcdir)/include -I\$(srcdir)"
FRONTEND_LDFLAGS=
FRONTEND_CFLAGS=
LIB_SOURCES=
MAKEDEP="-M"
RM_F="rm -f"
AC_ARG_ENABLE(nasm,
[ --enable-nasm Allow the use of nasm if available],
ASM_FOR_ARCH="i386", ASM_FOR_ARCH="")
dnl Checks for libraries.
AC_CHECK_HEADERS(termcap.h)
AC_CHECK_HEADERS(ncurses/termcap.h)
AC_CHECK_LIB(termcap, initscr, HAVE_TERMCAP="termcap")
AC_CHECK_LIB(curses, initscr, HAVE_TERMCAP="curses")
AC_CHECK_LIB(ncurses, initscr, HAVE_TERMCAP="ncurses")
AM_ICONV
dnl math lib
AC_CHECK_LIB(m, cos, USE_LIBM="-lm")
dnl free fast math library
AC_CHECK_LIB(ffm, cos, USE_LIBM="-lffm -lm")
dnl Compaq fast math library.
AC_ARG_ENABLE(cpml,
[ --disable-cpml Do not use Compaq's fast Math Library],
CONFIG_CPML="no", CONFIG_CPML="yes")
if test "${CONFIG_CPML}" = yes; then
AC_CHECK_LIB(cpml, cos, USE_LIBM="-lcpml")
fi
CONFIG_MATH_LIB="${USE_LIBM}"
dnl configure use of features
AM_PATH_GTK(1.2.0, HAVE_GTK="yes", HAVE_GTK="no")
dnl ElectricFence malloc debugging
AC_MSG_CHECKING(use of ElectricFence malloc debugging)
AC_ARG_ENABLE(efence,
[ --enable-efence Use ElectricFence for malloc debugging],
CONFIG_EFENCE="${enableval}", CONFIG_EFENCE="no")
case "${CONFIG_EFENCE}" in
yes)
AC_CHECK_LIB(efence, EF_Print, HAVE_EFENCE="-lefence")
if test "x${HAVE_EFENCE}" != "x-lefence"; then
AC_MSG_RESULT(yes, but libefence not found)
else
LDADD="${LDADD} ${HAVE_EFENCE}"
AC_DEFINE(HAVE_EFENCE, 1, we link against libefence)
AC_MSG_RESULT(${CONFIG_EFENCE})
fi
;;
no)
AC_MSG_RESULT(${CONFIG_EFENCE})
;;
*)
AC_MSG_ERROR(bad value �${CONFIG_EFENCE}� for efence option)
;;
esac
dnl libsndfile
WARNING=
AC_ARG_WITH(fileio,
[ --with-fileio=lame Use lame's internal file io routines [default]]
[ =sndfile Use Erik de Castro Lopo's libsndfile]
[ (no stdin possible currently)],
CONFIG_FILEIO="${withval}", CONFIG_FILEIO="lame")
if test "${CONFIG_FILEIO}" = "sndfile" ; then
PKG_CHECK_MODULES(SNDFILE, sndfile >= 1.0.2, HAVE_SNDFILE="yes", HAVE_SNDFILE="no")
fi
AC_MSG_CHECKING(use of file io)
if test "${CONFIG_FILEIO}" = "sndfile" ; then
if test "${HAVE_SNDFILE}" = "yes" -o "x${SNDFILE_LIBS}" != "x" \
-o "x${SNDFILE_CFLAGS}" != "x"; then
SNDFILE_LIBS=`echo ${SNDFILE_LIBS}`
SNDFILE_CFLAGS=`echo ${SNDFILE_CFLAGS}`
if test -n "${SNDFILE_LIBS}" ; then
FRONTEND_LDFLAGS="${SNDFILE_LIBS} ${FRONTEND_LDFLAGS}"
fi
FRONTEND_LDADD="-lsndfile ${FRONTEND_LDADD}"
if test -n "${SNDFILE_CFLAGS}" ; then
INCLUDES="${SNDFILE_CFLAGS} ${INCLUDES}"
fi
AC_DEFINE(LIBSNDFILE, 1, set to 1 if you have libsndfile)
else
# default
CONFIG_FILEIO="lame"
WARNING="${WARNING} Could not find any sndfile lib on system."
fi
else
CONFIG_FILEIO="lame"
fi
AC_MSG_RESULT(${CONFIG_FILEIO})
if test "x${WARNING}" != "x" ; then
AC_MSG_WARN($WARNING)
fi
dnl check if we should remove hooks for analyzer code in library
dnl default library must include these hooks
AC_MSG_CHECKING(use of analyzer hooks)
AC_ARG_ENABLE(analyzer-hooks,
[ --disable-analyzer-hooks Exclude analyzer hooks],
CONFIG_ANALYZER="${enableval}", CONFIG_ANALYZER="yes")
case "${CONFIG_ANALYZER}" in
yes)
;;
no)
AC_DEFINE(NOANALYSIS, 1, build without hooks for analyzer)
;;
*)
AC_MSG_ERROR(bad value �${CONFIG_ANALYZER}� for analyzer-hooks option)
;;
esac
AC_MSG_RESULT($CONFIG_ANALYZER)
dnl mpg123 decoder
AC_MSG_CHECKING(use of mpg123 decoder)
AC_ARG_ENABLE(decoder,
[ --disable-decoder Exclude mpg123 decoder],
CONFIG_DECODER="${enableval}", CONFIG_DECODER="yes")
AM_CONDITIONAL(LIB_WITH_DECODER, test "x${CONFIG_DECODER}" = "xyes")
if test "${CONFIG_DECODER}" != "no" ; then
CONFIG_DECODER="yes (Layer 1, 2, 3)"
AC_DEFINE(HAVE_MPGLIB, 1, build with mpglib support)
AC_DEFINE(DECODE_ON_THE_FLY, 1, allow to compute a more accurate replaygain value)
fi
AC_MSG_RESULT($CONFIG_DECODER)
AC_MSG_CHECKING(if the lame frontend should be build)
AC_ARG_ENABLE(frontend,
[ --disable-frontend Do not build the lame executable [default=build]],
WITH_FRONTEND="${enableval}", WITH_FRONTEND=yes)
if test "x${WITH_FRONTEND}" = "xyes"; then
WITH_FRONTEND=lame${ac_exeext}
AC_MSG_RESULT(yes)
else
WITH_FRONTEND=
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(if mp3x is requested)
AC_ARG_ENABLE(mp3x,
[ --enable-mp3x Build GTK frame analyzer [default=no]],
WITH_MP3X="${enableval}", WITH_MP3X=no)
if test "x${WITH_MP3X}" = "xyes"; then
WITH_MP3X=mp3x${ac_exeext}
AC_MSG_RESULT(yes)
else
WITH_MP3X=
AC_MSG_RESULT(no)
fi
if test "${HAVE_GTK}" = "no"; then
if test "x${WITH_MP3X}" = "xmp3x"; then
AC_MSG_WARN(can't build mp3x, no GTK installed)
WITH_MP3X=
fi
if test "x${CONFIG_ANALYZER}" != "xyes"; then
AC_MSG_WARN(can't build mp3x because of disabled analyzer hooks)
WITH_MP3X=
fi
fi
AC_MSG_CHECKING(if mp3rtp is requested)
AC_ARG_ENABLE(mp3rtp,
[ --enable-mp3rtp Build mp3rtp [default=no]],
WITH_MP3RTP="${enableval}", WITH_MP3RTP=no)
if test "x${WITH_MP3RTP}" = "xyes"; then
if test ${SOCKETFUNCTION} = NO; then
AC_MSG_ERROR([function socket is mandatory for mp3rtp])
fi
WITH_MP3RTP=mp3rtp${ac_exeext}
AC_MSG_RESULT(yes)
else
WITH_MP3RTP=
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING(if dynamic linking of the frontends is requested)
AC_ARG_ENABLE(dynamic-frontends,
[ --enable-dynamic-frontends Link frontends against shared libraries [default=no]],
FRONTEND_LDFLAGS="${FRONTEND_LDFLAGS}", FRONTEND_LDFLAGS="${FRONTEND_LDFLAGS} -static")
case "x${FRONTEND_LDFLAGS}" in
*-static*)
AC_MSG_RESULT(no)
;;
*)
AC_MSG_RESULT(yes)
;;
esac
#
# this is from vorbis
#
dnl check GLIBC
case $host in
*86-*-linux*)
# glibc < 2.1.3 has a serious FP bug in the math inline header
# that will cripple Vorbis. Look to see if the magic FP stack
# clobber is missing in the mathinline header, thus indicating
# the buggy version
AC_EGREP_CPP(log10.*fldlg2.*fxch,[
#define __LIBC_INTERNAL_MATH_INLINES 1
#define __OPTIMIZE__
#include <math.h>
],bad=maybe,bad=no)
AC_MSG_CHECKING(glibc mathinline bug)
if test ${bad} = "maybe" ;then
AC_EGREP_CPP(log10.*fldlg2.*fxch.*st\([[0123456789]]*\),
[
#define __LIBC_INTERNAL_MATH_INLINES 1
#define __OPTIMIZE__
#include <math.h>
],bad=no,bad=yes)
fi
AC_MSG_RESULT(${bad})
if test ${bad} = "yes" ;then
AC_MSG_WARN([ ])
AC_MSG_WARN([********************************************************])
AC_MSG_WARN([* The glibc headers on this machine have a serious bug *])
AC_MSG_WARN([* in /usr/include/bits/mathinline.h This bug affects *])
AC_MSG_WARN([* all floating point code, not only LAME, but all code *])
AC_MSG_WARN([* built on this machine. Upgrading to glibc 2.1.3 is *])
AC_MSG_WARN([* strongly urged to correct the problem. *])
AC_MSG_WARN([*Note: that upgrading glibc will not fix any previously*])
AC_MSG_WARN([* built programs; this is a compile-time bug. *])
AC_MSG_WARN([* To work around the problem for this build of LAME, *])
AC_MSG_WARN([* autoconf is disabling all math inlining. This will *])
AC_MSG_WARN([* hurt LAME performace but is necessary for LAME to *])
AC_MSG_WARN([* work correctly. Once glibc is upgraded, rerun *])
AC_MSG_WARN([* configure and make to build with inlining. *])
AC_MSG_WARN([********************************************************])
AC_MSG_WARN([ ])
AC_DEFINE(__NO_MATH_INLINES, 1, work around a glibc bug)
fi;;
esac
dnl configure use of VBR bitrate histogram
dnl todo: always use yes as default, use simulation instead ?
AC_MSG_CHECKING(for termcap)
if test "x${HAVE_TERMCAP}" != "x"; then
FRONTEND_LDADD="-l${HAVE_TERMCAP} ${FRONTEND_LDADD}"
AC_DEFINE(HAVE_TERMCAP, 1, have termcap)
TERMCAP_DEFAULT="yes"
else
TERMCAP_DEFAULT="no"
fi
AC_MSG_RESULT(${TERMCAP_DEFAULT})
dnl ### processor specific options ###
WITH_VECTOR=no
case $host_cpu in
x86_64|amd64)
CPUTYPE="no"
if test $ac_cv_header_xmmintrin_h = yes ; then
WITH_XMM=yes
WITH_VECTOR=yes
fi
AC_DEFINE(TAKEHIRO_IEEE754_HACK, 1, IEEE754 compatible machine)
AC_DEFINE(USE_FAST_LOG, 1, faster log implementation with less but enoug
h precission)
;;
*86)
CPUTYPE="i386"
if test $ac_cv_header_xmmintrin_h = yes ; then
WITH_XMM=yes
WITH_VECTOR=yes
fi
# use internal knowledge of the IEEE 754 layout
AC_DEFINE(TAKEHIRO_IEEE754_HACK, 1, IEEE754 compatible machine)
AC_DEFINE(USE_FAST_LOG, 1, faster log implementation with less but enough precission)
;;
powerpc)
CPUTYPE="no"
# use internal knowledge of the IEEE 754 layout
AC_DEFINE(TAKEHIRO_IEEE754_HACK, 1, IEEE754 compatible machine)
# The following should not get enabled on a G5. HOWTO check for a G5?
AC_DEFINE(USE_FAST_LOG, 1, faster log implementation with less but enough precission)
;;
*)
CPUTYPE="no"
;;
esac
# which vector code do we support to build on this machine?
AM_CONDITIONAL(WITH_XMM, test "x${WITH_XMM}" = "xyes")
# needs to be defined to link in the internal vector lib
AM_CONDITIONAL(WITH_VECTOR, test "x${WITH_VECTOR}" = "xyes")
AC_MSG_CHECKING(if I have to build the internal vector lib)
AC_MSG_RESULT(${WITH_VECTOR})
AC_PATH_PROG(NASM, nasm, no)
case "${NASM}" in
no)
;;
*)
AC_MSG_CHECKING(for assembler routines for this processor type)
for recurse_over in ${ASM_FOR_ARCH}
do
if test "${CPUTYPE}" = "${recurse_over}"; then
include_asm_routines="yes"
fi
case $host_os in
*darwin*)
# currently we have problems because of a wrong
# libtool hack in the darwin case (for nasm code)
include_asm_routines="no"
;;
esac
done
if test "x${include_asm_routines}" = "xyes"; then
AC_DEFINE(HAVE_NASM, 1, have nasm)
AC_DEFINE(MMX_choose_table, 1, use MMX version of choose_table)
else
include_asm_routines="no"
NASM="no"
fi
AC_MSG_RESULT(${include_asm_routines})
;;
esac
AM_CONDITIONAL(HAVE_NASM, test "${NASM}" != "no")
case $host_os in
*cygwin*|*mingw32*)
CYGWIN=yes
NASM_FORMAT="-f win32 -DWIN32"
;;
*darwin*)
NASM_FORMAT="-f macho"
;;
*)
CYGWIN=no
NASM_FORMAT="-f elf"
;;
esac
#
# 'expopt' is used for "additional optimizations", not for optimizations which
# are marked as "experimental" in the guide for the compiler.
# They are "experimental" here in the LAME project (at least
# "--enable-expopt=full").
#
AC_MSG_CHECKING(for additional optimizations)
AC_ARG_ENABLE(expopt,
[ --enable-expopt=full,norm Whether to enable experimental optimizations]
[ [default=no]],
CONFIG_EXPOPT="${enableval}", CONFIG_EXPOPT="no")
if test "x$HAVE_GCC" = "xyes" -o "x$HAVE_CLANG" = "xyes"; then
# gcc defaults. OS specific options go in versious sections below
# from the gcc man pages: "there is no reason to use -pedantic"
if test "x${with_gnu_ld}" = "xyes"; then
CFLAGS="-Wall -pipe ${CFLAGS}"
else
# some vendor ld's don't like '-pipe'
CFLAGS="-Wall ${CFLAGS}"
fi
# GCC version specific generic options
if test "x${HAVE_GCC}" = "xyes"; then
case "${GCC_version}" in
2.96*)
# for buggy version of gcc shipped with RH7.1, back of on some
# optimizations
OPTIMIZATION="-O -fomit-frame-pointer -ffast-math \
-funroll-loops"
OPTIMIZATION_FULL="-fmove-all-movables -freduce-all-givs \
-fsched-interblock -fbranch-count-reg -fforce-addr \
-fforce-mem"
;;
3.0*)
# -funroll-loops seems to produce buggy code with gcc 3.0.3
OPTIMIZATION="-O -fomit-frame-pointer -ffast-math"
OPTIMIZATION_FULL="-fmove-all-movables -freduce-all-givs \
-fbranch-count-reg -fforce-addr -fforce-mem"
;;
3.*|4.0.*|4.1.*)
# -fomit-frame-pointer seems to be buggy on cygwin
case ${host_os} in
*cygwin*)
OMIT_FRAME_POINTER=
;;
*)
OMIT_FRAME_POINTER=-fomit-frame-pointer
;;
esac
OPTIMIZATION="-O3 ${OMIT_FRAME_POINTER} -ffast-math"
OPTIMIZATION_FULL="-fmove-all-movables -freduce-all-givs \
-fbranch-count-reg -fforce-addr -fforce-mem"
;;
[456789].*)
OPTIMIZATION="-O3 -fomit-frame-pointer -ffast-math"
OPTIMIZATION_FULL="-fbranch-count-reg -fforce-addr"
;;
*)
# default
OPTIMIZATION="-O3 ${OMIT_FRAME_POINTER} -ffast-math \
-funroll-loops"
OPTIMIZATION_FULL="-fbranch-count-reg -fforce-addr"
;;
esac
# GCC version independend generic options
OPTIMIZATION_NORM="-fschedule-insns2"
fi
# generic CPU specific options
case ${host_cpu} in
sparc)
case "${GCC_version}" in
3.0*)
;;
[3456789].*)
# doesn't work on 3.0.x, but on 3.[12] and
# hopefully on every other release after that too
if test -x /usr/bin/isalist; then
/usr/bin/isalist | grep sparcv8plus \
>/dev/null 2>&1 && \
OPTIMIZATION="${OPTIMIZATION} \
-mcpu=ultrasparc \
-mtune=ultrasparc"
fi
;;
esac
;;
*86)
case "${GCC_version}" in
[3456789].*)
OPTIMIZATION="${OPTIMIZATION} \
-maccumulate-outgoing-args"
;;
esac
;;
esac
expopt_msg_result_printed=no
case "${CONFIG_EXPOPT}" in
no)
# if someone supplies own CFLAGS, we don't add our own
if test "x${ac_save_CFLAGS}" != "x"; then
OPTIMIZATION=""
fi
;;
norm|yes)
OPTIMIZATION="${OPTIMIZATION} ${OPTIMIZATION_NORM}"
;;
full)
OPTIMIZATION="${OPTIMIZATION} ${OPTIMIZATION_NORM} \
${OPTIMIZATION_FULL}"
if test "${HAVE_GCC}" = "yes"; then
# some hardware dependend options
case "${GCC_version}" in
2.9*|3.*|4.0.*|4.1.*)
# "new" GCC, use some "new" CPU specific optimizations
# use -mtune instead of -m486 or -mcpu= etc, since they are
# deprecated by GCC <rbrito>
case ${host_cpu} in
*486)
OPTIMIZATION="${OPTIMIZATION} -mcpu=i486 \
-mfancy-math-387"
;;
*586)
OPTIMIZATION="${OPTIMIZATION} -mcpu=pentium \
-march=pentium -mfancy-math-387"
;;
*686)
OPTIMIZATION="${OPTIMIZATION} -mcpu=pentiumpro \
-march=pentiumpro -mfancy-math-387 \
-malign-double"
;;
*86)
OPTIMIZATION="${OPTIMIZATION} -mfancy-math-387"
;;
alpha*)
OPTIMIZATION="${OPTIMIZATION} -mfp-regs"
AC_DEFINE(FLOAT, double, double is faster than float on Alpha)
# add "-mcpu=21164a -Wa,-m21164a" to optimize
# for 21164a (ev56) CPU
;;
*)
OPTIMIZATION="${OPTIMIZATION} -fdelayed-branch"
;;
esac
;;
[456789].*)
case ${host_cpu} in
*486)
OPTIMIZATION="${OPTIMIZATION} -march=i486"
;;
*586)
OPTIMIZATION="${OPTIMIZATION} -march=i586 \
-mtune=native"
;;
*686)
OPTIMIZATION="${OPTIMIZATION} -march=i686 \
-mtune=native"
;;
*86)
OPTIMIZATION="${OPTIMIZATION} -march=native \
-mtune=native"
;;
arm*-gnueabi)
if [ -z "$(echo ${GCC_version} | awk '/4\.0/')" ]; then
# Work round buggy softfloat optimization in ARM EABI compilers
# -gnueabi in only gcc-4.1 onwards
OPTIMIZATION="${OPTIMIZATION} -fno-finite-math-only"
fi
;;
esac
;;
*)
# no special optimization for other versions
AC_MSG_RESULT(no)
expopt_msg_result_printed=yes
AC_MSG_WARN(LAME doesn't know about your version (${GCC_version}) of gcc, please report it to [email protected]. Please make sure you try the latest LAME version first!)
;;
esac
fi
;;
*)
AC_MSG_ERROR(bad value �${CONFIG_EXPOPT}� for expopt option)
;;
esac
if test "x${HAVE_CLANG}" = "xyes"; then
case "${CLANG_VERSION}" in
3.[89]*|[45].*)
OPTIMIZATION="-Ofast"
;;
*)
OPTIMIZATION="-O3"
;;
esac
# generic CPU specific options
case ${host_cpu} in
*486)
OPTIMIZATION="${OPTIMIZATION} -march=i486"
;;
*586)
OPTIMIZATION="${OPTIMIZATION} -march=i586 \
-mtune=native"
;;
*686)
OPTIMIZATION="${OPTIMIZATION} -march=i686 \
-mtune=native"
;;
*86)
OPTIMIZATION="${OPTIMIZATION} -march=native \
-mtune=native"
;;
esac
fi
if test "${expopt_msg_result_printed}" = "no" ; then
AC_MSG_RESULT(${CONFIG_EXPOPT})
fi
else