configure

#!/bin/bash

# This file is part of the HörTech Open Master Hearing Aid (openMHA)
# Copyright © 2013 2014 2015 2016 2017 2018 2019 2020 2021 HörTech gGmbH
# Copyright © 2022 Hörzentrum Oldenburg gGmbH
#
# openMHA is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# openMHA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License, version 3 for more details.
#
# You should have received a copy of the GNU Affero General Public License,
# version 3 along with openMHA.  If not, see <http://www.gnu.org/licenses/>.

chkhdr(){
    echo "#include <$1>" | cc -E -x c++ - $MACINCLUDES -o /dev/null 2>/dev/null 1>/dev/null && true || false;
}
chklib(){
    echo "int main(){return 0;}"| cc -x c++ - $MACLDFLAGS -l$1 -o /tmp/tmp.openmha.config.out.exe 2>/dev/null 1>/dev/null && true || false;
}
gccver(){
    gcc -dumpversion | head -1|sed -e 's/.*[[:blank:]]//' -e 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)/-\1/' -e 's/^[0-9]/-&/1'
}

PREFIX=$(pwd)
DEBUG="-g"
for arg in "$@"; do
    case "$arg" in
        --prefix=*)
            PREFIX=`echo $arg | sed 's/--prefix=//'`
            ;;
        --debug)
            DEBUG="-g"
            ;;
        --nodebug)
            DEBUG=""
            ;;
        --debug=*)
            DEBUG=`echo $arg | sed 's/--debug=/-g/'`
            ;;
        --with-alsa=*)
            WITH_ALSA=`echo $arg | sed 's/--with-alsa=//'`
            ;;
        --arch=*)
            ARCH=`echo $arg | sed 's/--arch=//'`
            ;;
        --with-lsl)
            WITH_LSL=yes
            ;;
        --with-eigen)
            WITH_EIGEN=yes
            ;;
        --with-jack=*)
            WITH_JACK=`echo $arg | sed 's/--with-jack=//'`
            ;;
        --with-lsl=*)
            WITH_LSL=`echo $arg | sed 's/--with-lsl=//'`
            ;;
        --with-eigen=*)
            WITH_EIGEN=`echo $arg | sed 's/--with-eigen=//'`
            ;;
        --with-osc=*)
            WITH_OSC=`echo $arg | sed 's/--with-osc=//'`
            ;;
        --help)
            echo 'usage: ./configure [options]'
            echo 'options:'
            echo '  --prefix=<path>: installation prefix'
            echo '  --debug : include debug symbols (default)'
            echo '  --debug=<debugger> : include debug symbols for <debugger>'
            echo '  --nodebug : do not include debug symbols'
            echo '  --arch=<arch>: the target arch'
            echo '  --with-alsa=[yes|no]: override auto detection of ALSA'
            echo '  --with-eigen: override auto detection of Eigen'
            echo '  --with-lsl=[yes|no]: override auto detection of LSL'
            echo '  --with-osc=[yes|no]: override auto detection of liblo'
            echo 'all invalid options are silently ignored'
            exit 0
            ;;
    esac
done
(
    if [ "x$ARCH" = "x" ]; then
        ARCH=`uname -m`
    fi

    # Add operating-system specific settings
    case `uname -s` in
        *Linux*)
            PLATFORM=linux
            echo PLATFORM=linux
            echo DYNAMIC_LIB_EXT=".so"
            GCC_VER=`gccver`
            ;;
        *Cygwin* | *Msys* | *MinGW* | *MINGW* )
            PLATFORM=MinGW
            echo PLATFORM=MinGW
            echo DYNAMIC_LIB_EXT=".dll"
            GCC_VER=`gccver`
            ;;
        Darwin)
            PLATFORM=Darwin
            echo PLATFORM=Darwin
            echo DYNAMIC_LIB_EXT=".dylib"
            echo BUILD_DIR=${ARCH}-${PLATFORM}-clang
            echo TOOLSET=clang
            WITH_JACK=yes
            # We do not want warnings from external headers, so use -isystem instead of -I
            if [ -d "/opt/local/include" ]; then
                MACINCLUDES+=" -isystem/opt/local/include"
            fi
            if [ -d "/opt/local/lib" ]; then
                MACLDFLAGS+=" -L/opt/local/lib"
                echo LDFLAGS+=" -L/opt/local/lib"
            fi
            # On arm macs homebrew saves its stuff into /opt/homebrew/...
            if [ -d "/opt/homebrew/include" ]; then
                MACINCLUDES+=" -isystem/opt/homebrew/include"
            fi
            if [ -d "/opt/homebrew/lib" ]; then
                MACLDFLAGS+=" -L/opt/homebrew/lib"
                echo LDFLAGS+=" -L/opt/homebrew/lib"
            fi
            MACCXXFLAGS+="-Wno-error=unused-command-line-argument -Wimplicit-fallthrough"
    esac
    echo ARCH=$ARCH
    echo PREFIX=$PREFIX

    if [ "x$WITH_ALSA" = "xyes" ]; then
        echo "WITH_ALSA=yes";
    elif [ "x$WITH_ALSA" = "xno" ]; then
        echo "WITH_ALSA=no";
    else
        pkg-config alsa && (echo "WITH_ALSA=yes")
    fi

    if [ "x$PLATFORM" = "xMinGW" ]; then
        WITH_JACK=yes
    fi

    if [ "x$WITH_JACK" = "xyes" ]; then
        echo "WITH_JACK=yes";
    elif [ "x$WITH_JACK" = "xno" ]; then
        echo "WITH_JACK=no";
    else
        pkg-config jack && (echo "WITH_JACK=yes")
    fi

    if [ "x$WITH_LSL" = "xyes" ]; then
        echo "WITH_LSL=yes";
    elif [ "x$WITH_LSL" = "xno" ]; then
        echo "WITH_LSL=no";
    else
        chkhdr lsl_cpp.h && chklib lsl && (echo "WITH_LSL=yes");
    fi

    if [ "x$WITH_OSC" = "xyes" ]; then
        echo "WITH_OSC=yes";
    elif [ "x$WITH_OSC" = "xno" ]; then
        echo "WITH_OSC=no";
    else
        chkhdr lo/lo.h && chklib lo && (echo "WITH_OSC=yes");
    fi

    if [ "x$WITH_EIGEN" = "xyes" ]; then
        echo "WITH_EIGEN=yes";
    elif [ "x$WITH_EIGEN" = "xno" ]; then
        echo "WITH_EIGEN=no";
    else
        chkhdr eigen3/Eigen/Eigen && (echo "WITH_EIGEN=yes");
    fi

    if [ "x$CXXSTANDARD" = "x" ]; then
        case "$GCC_VER" in
            *)
                CXXSTANDARD=c++17
                ;;
        esac
    fi
    echo "CXXSTANDARD=$CXXSTANDARD";

    if test -n "$GCC_VER"
    then
            echo GCC_VER=${GCC_VER}
            echo BUILD_DIR=${ARCH}-${PLATFORM}-gcc${GCC_VER}
            echo "CXXFLAGS+=-Wmisleading-indentation  -Wlogical-op -Wduplicated-cond -Wduplicated-branches"\
                 " -Wformat-signedness";
            echo "CFLAGS+=-Wmisleading-indentation  -Wlogical-op -Wduplicated-cond -Wduplicated-branches";
    fi

    # Add CPU-specific compiler options:
    case $ARCH in
        armhf)
            # User wants to cross-compile for 32 bit ARM Linux
            echo "COMPILERPREFIX=arm-linux-gnueabihf-"
            ;;
        arm64)
            # This is most likely an ARM Mac. No extra settings.
            ;;
        arm*)
            # Some variants of 32 bit ARM Linux, native compilation.
            echo "SSE+=-mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon"
            ;;
        aarch64)
            # 64 bit ARM Linux, native compilation
            echo "SSE+=-mcpu=cortex-a73.cortex-a53" # Remove this line if the
            # generated binaries do not execute correctly on your aarch64 board.
            ;;
        x86_64*|i686*)
            # PC (Windows, Linux, or Mac)
            echo "SSE+=-msse -msse2 -mfpmath=sse"
            ;;
    esac

    if type -P ccache >/dev/null
    then
        echo 'COMPILERPREFIX:=ccache $(COMPILERPREFIX)'
    fi

    echo 'OPTIM=-O3 $(SSE) -ffast-math -fomit-frame-pointer -fno-finite-math-only'
    echo 'CXXFLAGS+=-Wall -Wextra -Wnon-virtual-dtor -Wformat -Werror -std=$(CXXSTANDARD) -fPIC $(OPTIM)' ${MACINCLUDES} ${MACCXXFLAGS} $DEBUG
    echo 'CFLAGS+=-Wall -Wextra -Werror -std=gnu11 -fPIC $(OPTIM)' ${MACINCLUDES} ${MACCXXFLAGS} $DEBUG
    if [[ $(type -P octave) ]] ; then
        echo "MHA_TEST_COMMAND=octave --no-gui --no-window-system --eval"\
             "\"set_environment;exit(~run_mha_tests())\"";
    elif [[ $(type -P matlab) ]]; then
        echo "MHA_TEST_COMMAND=matlab -nodesktop -nosplash -nodisplay -r"\
             "\"set_environment;exit(~run_mha_tests())\"";
    fi
) | tee config.mk

# Local Variables:
# coding: utf-8-unix
# indent-tabs-mode: nil
# End: