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configure.ac
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configure.ac
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# Copyright (c) 2007 - 2019 Joseph Gaeddert
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# liquid-dsp library configure
# Process with autoconf to generate configure script
#
AC_INIT([liquid-dsp],[1.3.2],[joseph@liquidsdr.org])
AC_CONFIG_SRCDIR([src/libliquid.c])
AC_CONFIG_MACRO_DIR([scripts])
# permit auxiliary scripts directory (e.g. config.sub, config.guess, install-sh)
AC_CONFIG_AUX_DIR(scripts/)
# Specify 'C' language
AC_LANG(C)
# uncomment the following line to reset "CFLAGS" variable; it defaults to '-g -O2'
#: ${CFLAGS=""}
# Autoheader
AH_TEMPLATE([LIQUID_FFTOVERRIDE], [Force internal FFT even if libfftw is available])
AH_TEMPLATE([LIQUID_SIMDOVERRIDE], [Force overriding of SIMD (use portable C code)])
AC_CONFIG_HEADER(config.h)
AH_TOP([
#ifndef __LIQUID_CONFIG_H__
#define __LIQUID_CONFIG_H__
])
AH_BOTTOM([
#endif // __LIQUID_CONFIG_H__
])
# Configure options
AC_ARG_ENABLE(debug-messages,
AS_HELP_STRING([--enable-debug-messages],[enable verbose debug messages (-DDEBUG)]),
[DEBUG_MSG_OPTION="-DDEBUG"],
[DEBUG_MSG_OPTION=""]
)
AC_ARG_ENABLE(simdoverride,
AS_HELP_STRING([--enable-simdoverride],[use portable C code for dotprod, etc. even if SIMD extensions are available]),
[AC_DEFINE(LIQUID_SIMDOVERRIDE)],
[],
)
AC_ARG_ENABLE(fftoverride,
AS_HELP_STRING([--enable-fftoverride],[use internal fft even if libfftw is available]),
[AC_DEFINE(LIQUID_FFTOVERRIDE)],
[],
)
# Check for necessary programs
AC_PROG_CC
AC_PROG_SED
AC_PROG_GREP
AC_PROG_INSTALL
AC_PROG_RANLIB
# Check for necessary libraries, library functions
AC_FUNC_ERROR_AT_LINE
AC_FUNC_MALLOC
AC_FUNC_REALLOC
# AC_CHECK_LIB (library, function, [action-if-found], [action-if-not-found], [other-libraries])
#AC_CHECK_LIB([c],[main],[],[AC_MSG_ERROR(Could not use standard C library)], [])
AC_CHECK_LIB([m],[main],[],[AC_MSG_ERROR(Could not use standard math library)],[])
# AC_CHECK_FUNC(function, [action-if-found], [action-if-not-found])
AC_CHECK_FUNCS([malloc realloc free memset memmove],[],
[AC_MSG_ERROR(Could not use memory allocation functions)])
AC_CHECK_FUNCS([sinf cosf expf cargf cexpf crealf cimagf sqrtf],[],
[AC_MSG_ERROR(Could not use special math functions)],)
# Check for necessary header files
AC_CHECK_HEADERS([stdio.h stdlib.h complex.h string.h float.h inttypes.h limits.h stdlib.h string.h],[],
[AC_MSG_ERROR(Could not use standard headers)])
# Check for optional header files, libraries, programs
AC_CHECK_HEADERS(fec.h fftw3.h)
AC_CHECK_LIB([fftw3f], [fftwf_plan_dft_1d], [],
[AC_MSG_WARN(fftw3 library useful but not required)],
[])
AC_CHECK_LIB([fec], [create_viterbi27], [],
[AC_MSG_WARN(fec library useful but not required)],
[])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_UINT32_T
AC_TYPE_UINT8_T
# Check size of certain variables
AC_CHECK_SIZEOF(short int)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long int)
AC_CHECK_SIZEOF(long long int)
# AX_GCC_ARCHFLAG([PORTABLE?], [ACTION-SUCCESS], [ACTION-FAILURE])
# Try to guess the "native" architecture of the target to use with gcc's
# -march or -mtune flags. Default success action adds $ax_cv_gcc_archflag to
# $CFLAGS (sets to "unknown" on failure).
#AX_GCC_ARCHFLAG([no],[],[])
# get canonical target architecture
AC_CANONICAL_TARGET
# override SIMD
if test "${enable_simdoverride+set}" = set; then
# portable C version
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.o \
src/dotprod/src/dotprod_crcf.o \
src/dotprod/src/dotprod_rrrf.o \
src/dotprod/src/sumsq.o"
ARCH_OPTION=""
else
# Check canonical system
case $target_cpu in
i386|i486|i586|i686|x86|x86_64)
# check for MMX/SSE/AVX CPU extensions and intrinsics headers
# MMX : mmintrin.h
# SSE : xmmintrin.h
# SSE2 : emmintrin.h
# SSE3 : pmmintrin.h
# SSSE3 : tmmintrin.h
# SSE4.1/2: smmintrin.h
# AVX : immintrin.h
AX_EXT
if [ test "$ax_cv_have_sse41_ext" = yes && test "$ac_cv_header_smmintrin_h" = yes ]; then
# SSE4.1/2 extensions
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.mmx.o \
src/dotprod/src/dotprod_crcf.mmx.o \
src/dotprod/src/dotprod_rrrf.mmx.o \
src/dotprod/src/sumsq.mmx.o"
ARCH_OPTION='-msse4.1'
elif [ test "$ax_cv_have_sse3_ext" = yes && test "$ac_cv_header_pmmintrin_h" = yes ]; then
# SSE3 extensions
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.mmx.o \
src/dotprod/src/dotprod_crcf.mmx.o \
src/dotprod/src/dotprod_rrrf.mmx.o \
src/dotprod/src/sumsq.mmx.o"
ARCH_OPTION='-msse3'
elif [ test "$ax_cv_have_sse2_ext" = yes && test "$ac_cv_header_emmintrin_h" = yes ]; then
# SSE2 extensions
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.mmx.o \
src/dotprod/src/dotprod_crcf.mmx.o \
src/dotprod/src/dotprod_rrrf.mmx.o \
src/dotprod/src/sumsq.mmx.o"
ARCH_OPTION='-msse2'
else
# portable C version
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.o \
src/dotprod/src/dotprod_crcf.o \
src/dotprod/src/dotprod_rrrf.o \
src/dotprod/src/sumsq.o"
fi;;
powerpc*)
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.o \
src/dotprod/src/dotprod_rrrf.av.o \
src/dotprod/src/dotprod_crcf.av.o \
src/dotprod/src/sumsq.o"
ARCH_OPTION="-fno-common -faltivec";;
armv1*|armv2*|armv3*|armv4*|armv5*|armv6*)
# assume neon instructions are NOT available
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.o \
src/dotprod/src/dotprod_crcf.o \
src/dotprod/src/dotprod_rrrf.o \
src/dotprod/src/sumsq.o"
ARCH_OPTION="-ffast-math";;
armv7*|armv8*)
# assume neon instructions are available
# TODO: check for Neon availability
# ARM architecture : use neon extensions
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.neon.o \
src/dotprod/src/dotprod_crcf.neon.o \
src/dotprod/src/dotprod_rrrf.neon.o \
src/dotprod/src/sumsq.o"
# TODO: check these flags
#ARCH_OPTION="-ffast-math -mcpu=cortex-a8 -mfloat-abi=softfp -mfpu=neon";;
ARCH_OPTION="-ffast-math -mcpu=cortex-a7 -mfloat-abi=hard -mfpu=neon-vfpv4";;
*)
# unknown architecture : use portable C version
MLIBS_DOTPROD="src/dotprod/src/dotprod_cccf.o \
src/dotprod/src/dotprod_crcf.o \
src/dotprod/src/dotprod_rrrf.o \
src/dotprod/src/sumsq.o"
ARCH_OPTION="";;
esac
fi
# for now all vector operations are portable C versions
MLIBS_VECTOR="src/vector/src/vectorf_add.port.o \
src/vector/src/vectorf_norm.port.o \
src/vector/src/vectorf_mul.port.o \
src/vector/src/vectorf_trig.port.o \
src/vector/src/vectorcf_add.port.o \
src/vector/src/vectorcf_norm.port.o \
src/vector/src/vectorcf_mul.port.o \
src/vector/src/vectorcf_trig.port.o"
case $target_os in
darwin*)
AN_MAKEVAR([LIBTOOL], [AC_PROG_LIBTOOL])
AN_PROGRAM([libtool], [AC_PROG_LIBTOOL])
AC_DEFUN([AC_PROG_LIBTOOL], [AC_CHECK_TOOL(LIBTOOL, libtool, :)])
AC_PROG_LIBTOOL
AR_LIB=libliquid.ar
SH_LIB=libliquid.dylib
REBIND=""
;;
*)
AN_MAKEVAR([AR], [AC_PROG_AR])
AN_PROGRAM([ar], [AC_PROG_AR])
AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL(AR, ar, :)])
AC_PROG_AR
AR_LIB=libliquid.a
SH_LIB=libliquid.so
REBIND=ldconfig
;;
esac
#
# autoconf variable substitutions
#
AC_SUBST(LIBS) # shared libraries (-lc, -lm, etc.)
AC_SUBST(MLIBS_DOTPROD) #
AC_SUBST(MLIBS_VECTOR) #
AC_SUBST(AR_LIB) # archive library
AC_SUBST(SH_LIB) # output shared library target
AC_SUBST(REBIND) # rebinding tool (e.g. ldconfig)
AC_SUBST(ARCH_OPTION) # compiler architecture option
AC_SUBST(DEBUG_MSG_OPTION) # debug messages option (.e.g -DDEBUG)
AC_SUBST(CLIB) # C library linkage (e.g. '-lc')
AC_CONFIG_FILES([makefile])
AC_OUTPUT