configure

#!/bin/sh


PREFIX=/usr
EPREFIX=$PREFIX

BINDIR=
SBINDIR=
LIBDIR=
LIBEXECDIR=
DATADIR=
SYSCONFDIR=
SHAREDSTATEDIR=
LOCALSTATEDIR=
INCLUDEDIR=
INFODIR=
MANDIR=

OS=`uname -s`
OS_VERSION=`uname -r`

TEMP_DIR=".tmp-`uname -n`"
mkdir -p "$TEMP_DIR"
if [ $? -ne 0 ]; then
    echo "Cannot create tmp dir"
    echo "Abort"
fi
touch "$TEMP_DIR/options"
touch "$TEMP_DIR/features"

# features

# help text
printhelp()
{
    echo "Usage: $0 [OPTIONS]..."
    cat << __EOF__
Installation directories:
  --prefix=PREFIX         path prefix for architecture-independent files
                          [/usr]
  --exec-prefix=EPREFIX   path prefix for architecture-dependent files
                          [PREFIX]

  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        system configuration files [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --mandir=DIR            man documentation [DATAROOTDIR/man]

__EOF__
}

#
# parse arguments
#
for ARG in "$@"
do
    case "$ARG" in
        "--prefix="*)         PREFIX=${ARG#--prefix=} ;;
        "--exec-prefix="*)    EPREFIX=${ARG#--exec-prefix=} ;;
        "--bindir="*)         BINDIR=${ARG#----bindir=} ;;
        "--sbindir="*)        SBINDIR=${ARG#--sbindir=} ;;
        "--libdir="*)         LIBDIR=${ARG#--libdir=} ;;
        "--libexecdir="*)     LIBEXECDIR=${ARG#--libexecdir=} ;;
        "--datadir="*)        DATADIR=${ARG#--datadir=} ;;
        "--sysconfdir="*)     SYSCONFDIR=${ARG#--sysconfdir=} ;;
        "--sharedstatedir="*) SHAREDSTATEDIR=${ARG#--sharedstatedir=} ;;
        "--localstatedir="*)  LOCALSTATEDIR=${ARG#--localstatedir=} ;;
        "--includedir="*)     INCLUDEDIR=${ARG#--includedir=} ;;
        "--infodir="*)        INFODIR=${ARG#--infodir=} ;;
        "--mandir"*)          MANDIR=${ARG#--mandir} ;;
        "--help"*) printhelp; rm -Rf "$TEMP_DIR"; exit 1 ;;
        "-"*) echo "unknown option: $ARG"; rm -Rf "$TEMP_DIR"; exit 1 ;;
    esac
done

# set dir variables
if [ -z "$BINDIR" ]; then
    BINDIR=$EPREFIX/bin
fi
if [ -z "$SBINDIR" ]; then
    SBINDIR=$EPREFIX/sbin
fi
if [ -z "$LIBDIR" ]; then
    LIBDIR=$EPREFIX/lib
fi
if [ -z "$LIBEXEC" ]; then
    LIBEXECDIR=$EPREFIX/libexec
fi
if [ -z "$DATADIR" ]; then
    DATADIR=$PREFIX/share
fi
if [ -z "$SYSCONFDIR" ]; then
    SYSCONFDIR=$PREFIX/etc
fi
if [ -z "$SHAREDSTATEDIR" ]; then
    SHAREDSTATEDIR=$PREFIX/com
fi
if [ -z "$LOCALSTATEDIR" ]; then
    LOCALSTATEDIR=$PREFIX/var
fi
if [ -z "$INCLUDEDIR" ]; then
    INCLUDEDIR=$PREFIX/include
fi
if [ -z "$INFODIR" ]; then
    INFODIR=$PREFIX/info
fi
if [ -z "$MANDIR" ]; then
    MANDIR=$PREFIX/man
fi

which pkg-config > /dev/null
if [ $? -eq 0 ]; then
    PKG_CONFIG=pkg-config
else
    PKG_CONFIG=false
fi

# Simple uname based platform detection
# $PLATFORM is used for platform dependent dependency selection
printf "detect platform... "
if [ "$OS" = "SunOS" ]; then
    PLATFORM="solaris sunos unix svr4"
fi
if [ "$OS" = "Linux" ]; then
    PLATFORM="linux unix"
fi
if [ "$OS" = "FreeBSD" ]; then
    PLATFORM="freebsd bsd unix"
fi
if [ "$OS" = "Darwin" ]; then
    PLATFORM="macos osx bsd unix"
fi
echo "$OS" | grep -i "MINGW" > /dev/null
if [ $? -eq 0 ]; then
    PLATFORM="windows mingw"
fi

if [ -z "$PLATFORM" ]; then
    PLATFORM="unix"
fi

for p in $PLATFORM
do
    PLATFORM_NAME=$p
    break
done
echo $PLATFORM_NAME

isplatform()
{
    for p in $PLATFORM
    do
        if [ "$p" = "$1" ]; then
            return 0
        fi
    done
    return 1
}
isnotplatform()
{
    for p in $PLATFORM
    do
        if [ "$p" = "$1" ]; then
            return 1
        fi
    done
    return 0
}

# generate config.mk and config.h
cat > "$TEMP_DIR/config.mk" << __EOF__
#
# config.mk generated by configure
#

# general vars

PREFIX=$PREFIX
EPREFIX=$EPREFIX

BINDIR=$BINDIR
SBINDIR=$SBINDIR
LIBDIR=$LIBDIR
LIBEXECDIR=$LIBEXECDIR
DATADIR=$DATADIR
SYSCONFDIR=$SYSCONFDIR
SHAREDSTATEDIR=$SHAREDSTATEDIR
LOCALSTATEDIR=$LOCALSTATEDIR
INCLUDEDIR=$INCLUDEDIR
INFODIR=$INFODIR
MANDIR=$MANDIR

__EOF__

echo > "$TEMP_DIR/make.mk"

ENV_CFLAGS=$CFLAGS
ENV_LDFLAGS=$LDFLAGS
ENV_CXXFLAGS=$CXXFLAGS

# Toolchain detection
# this will insert make vars to config.mk
. make/toolchain.sh

# add user specified flags to config.mk
echo "# project specific flags" >> "$TEMP_DIR/config.mk"
if [ -n "${ENV_CFLAGS}" ]; then
    echo "CFLAGS += $ENV_CFLAGS" >> "$TEMP_DIR/config.mk"
fi
if [ -n "${ENV_CXXFLAGS}" ]; then
    echo "CXXFLAGS += $ENV_CXXFLAGS" >> "$TEMP_DIR/config.mk"
fi
if [ -n "${ENV_LDFLAGS}" ]; then
    echo "LDFLAGS += $ENV_LDFLAGS" >> "$TEMP_DIR/config.mk"
fi

#
# DEPENDENCIES
#

dependency_curl()
{
    printf "checking for curl... "
    # dependency curl platform="windows"
    while true
    do
        if isnotplatform "windows"; then
            break
        fi
        TEMP_CFLAGS="$TEMP_CFLAGS -I/mingw/include"
        TEMP_LDFLAGS="$TEMP_LDFLAGS -lcurl"
        echo yes
        return 0
    done

    # dependency curl platform="macos"
    while true
    do
        if isnotplatform "macos"; then
            break
        fi
        curl-config --cflags > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_CFLAGS="$TEMP_CFLAGS `curl-config --cflags`"
        else
            break
        fi
        curl-config --ldflags > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_LDFLAGS="$TEMP_LDFLAGS `curl-config --ldflags`"
        else
            break
        fi
        echo yes
        return 0
    done

    # dependency curl
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        $PKG_CONFIG libcurl
        if [ $? -ne 0 ] ; then
            break
        fi
        TEMP_CFLAGS="$TEMP_CFLAGS `$PKG_CONFIG --cflags libcurl`"
        TEMP_LDFLAGS="$TEMP_LDFLAGS `$PKG_CONFIG --libs libcurl`"
        echo yes
        return 0
    done

    # dependency curl
    while true
    do
        curl-config --cflags > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_CFLAGS="$TEMP_CFLAGS `curl-config --cflags`"
        else
            break
        fi
        curl-config --libs > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_LDFLAGS="$TEMP_LDFLAGS `curl-config --libs`"
        else
            break
        fi
        echo yes
        return 0
    done

    echo no
    return 1
}
dependency_openssl()
{
    printf "checking for openssl... "
    # dependency openssl platform="windows"
    while true
    do
        if isnotplatform "windows"; then
            break
        fi
        TEMP_LDFLAGS="$TEMP_LDFLAGS -lssl -lcrypto"
        echo yes
        return 0
    done

    # dependency openssl platform="macos"
    while true
    do
        if isnotplatform "macos"; then
            break
        fi
        TEMP_LDFLAGS="$TEMP_LDFLAGS -framework CoreFoundation"
        echo yes
        return 0
    done

    # dependency openssl platform="bsd"
    while true
    do
        if isnotplatform "bsd"; then
            break
        fi
        if isplatform "macos"; then
            break
        fi
        TEMP_LDFLAGS="$TEMP_LDFLAGS -lssl -lcrypto"
        echo yes
        return 0
    done

    # dependency openssl
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        $PKG_CONFIG openssl
        if [ $? -ne 0 ] ; then
            break
        fi
        TEMP_CFLAGS="$TEMP_CFLAGS `$PKG_CONFIG --cflags openssl`"
        TEMP_LDFLAGS="$TEMP_LDFLAGS `$PKG_CONFIG --libs openssl`"
        echo yes
        return 0
    done

    echo no
    return 1
}
dependency_libxml2()
{
    printf "checking for libxml2... "
    # dependency libxml2 platform="windows"
    while true
    do
        if isnotplatform "windows"; then
            break
        fi
        xml2-config --cflags > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_CFLAGS="$TEMP_CFLAGS `xml2-config --cflags`"
        else
            break
        fi
        xml2-config --libs > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_LDFLAGS="$TEMP_LDFLAGS `xml2-config --libs`"
        else
            break
        fi
        echo yes
        return 0
    done

    # dependency libxml2 platform="macos"
    while true
    do
        if isnotplatform "macos"; then
            break
        fi
        xml2-config --cflags > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_CFLAGS="$TEMP_CFLAGS `xml2-config --cflags`"
        else
            break
        fi
        xml2-config --libs > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_LDFLAGS="$TEMP_LDFLAGS `xml2-config --libs`"
        else
            break
        fi
        echo yes
        return 0
    done

    # dependency libxml2
    while true
    do
        if [ -z "$PKG_CONFIG" ]; then
            break
        fi
        $PKG_CONFIG libxml-2.0
        if [ $? -ne 0 ] ; then
            break
        fi
        TEMP_CFLAGS="$TEMP_CFLAGS `$PKG_CONFIG --cflags libxml-2.0`"
        TEMP_LDFLAGS="$TEMP_LDFLAGS `$PKG_CONFIG --libs libxml-2.0`"
        echo yes
        return 0
    done

    # dependency libxml2
    while true
    do
        xml2-config --cflags > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_CFLAGS="$TEMP_CFLAGS `xml2-config --cflags`"
        else
            break
        fi
        xml2-config --libs > /dev/null
        if [ $? -eq 0 ]; then
            TEMP_LDFLAGS="$TEMP_LDFLAGS `xml2-config --libs`"
        else
            break
        fi
        echo yes
        return 0
    done

    echo no
    return 1
}

DEPENDENCIES_FAILED=
ERROR=0
# general dependencies
TEMP_CFLAGS=
TEMP_LDFLAGS=
while true
do
    while true
    do

        TEMP_LDFLAGS="$TEMP_LDFLAGS -lm -lpthread"

        break
    done

    break
done
while true
do
    if isnotplatform "bsd"; then
        break
    fi
    if isplatform "macos"; then
        break
    fi
    while true
    do

        TEMP_CFLAGS="$TEMP_CFLAGS -I/usr/local/include"
        TEMP_LDFLAGS="$TEMP_LDFLAGS -L/usr/local/lib"

        break
    done

    break
done
while true
do
    if isnotplatform "macos"; then
        break
    fi
    while true
    do

        cat >> "$TEMP_DIR/make.mk" << __EOF__
OBJ_EXT = .o
LIB_EXT = .a

__EOF__

        break
    done

    break
done
while true
do
    if isnotplatform "unix"; then
        break
    fi
    if isplatform "macos"; then
        break
    fi
    while true
    do

        cat >> "$TEMP_DIR/make.mk" << __EOF__
OBJ_EXT = .o
LIB_EXT = .a

__EOF__

        break
    done

    break
done

# add general dependency flags to config.mk
echo >> "$TEMP_DIR/config.mk"
if [ -n "${TEMP_CFLAGS}" ]; then
    echo "CFLAGS += $TEMP_CFLAGS" >> $TEMP_DIR/config.mk
fi
if [ -n "${TEMP_CXXFLAGS}" ]; then
    echo "CXXFLAGS += $TEMP_CXXFLAGS" >> $TEMP_DIR/config.mk
fi
if [ -n "${TEMP_LDFLAGS}" ]; then
    echo "LDFLAGS += $TEMP_LDFLAGS" >> $TEMP_DIR/config.mk
fi

#
# OPTION VALUES
#

#
# TARGETS
#
TEMP_CFLAGS=
TEMP_CXXFLAGS=
TEMP_LDFLAGS=

# Target: dav
TEMP_CFLAGS=
TEMP_LDFLAGS=
TEMP_CXXFLAGS=

dependency_curl
if [ $? -ne 0 ]; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED curl "
    ERROR=1
fi
dependency_libxml2
if [ $? -ne 0 ]; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED libxml2 "
    ERROR=1
fi
dependency_openssl
if [ $? -ne 0 ]; then
    DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED openssl "
    ERROR=1
fi

# Features


echo >> "$TEMP_DIR/config.mk"
if [ -n "${TEMP_CFLAGS}" ]; then
    echo "DAV_CFLAGS  += $TEMP_CFLAGS" >> "$TEMP_DIR/config.mk"
fi
if [ -n "${TEMP_CXXFLAGS}" ]; then
    echo "DAV_CXXFLAGS += $TEMP_CXXFLAGS" >> "$TEMP_DIR/config.mk"
fi
if [ -n "${TEMP_LDFLAGS}" ]; then
    echo "DAV_LDFLAGS += $TEMP_LDFLAGS" >> "$TEMP_DIR/config.mk"
fi

if [ $ERROR -ne 0 ]; then
    echo
    echo "Error: Unresolved dependencies"
    echo "$DEPENDENCIES_FAILED"
    rm -Rf "$TEMP_DIR"
    exit 1
fi

echo "configure finished"
echo
echo "Build Config:"
echo "  PREFIX:    $PREFIX"
echo "  TOOLCHAIN: $TOOLCHAIN_NAME"
echo
cat "$TEMP_DIR/config.mk" "$TEMP_DIR/make.mk" > config.mk
rm -Rf "$TEMP_DIR"