diff -r e9a5dd08258d -r 7e67689241fd configure
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/configure	Sat Feb 25 11:01:46 2023 +0100
@@ -0,0 +1,605 @@
+#!/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; exit 1 ;;
+		"-"*) echo "unknown option: $ARG"; exit 1 ;;
+	esac
+done
+
+# set dir variables
+if [ -z "$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 "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 >> $TEMP_DIR/config.mk
+if [ ! -z "${ENV_CFLAGS}" ]; then
+    echo "CFLAGS += $ENV_CFLAGS" >> $TEMP_DIR/config.mk
+fi
+if [ ! -z "${ENV_CXXFLAGS}" ]; then
+    echo "CXXFLAGS += $ENV_CXXFLAGS" >> $TEMP_DIR/config.mk
+fi
+if [ ! -z "${ENV_LDFLAGS}" ]; then
+    echo "LDFLAGS += $ENV_LDFLAGS" >> $TEMP_DIR/config.mk
+fi
+
+#
+# DEPENDENCIES
+#
+
+dependency_curl()
+{
+    printf "checking for curl... "
+    # dependency curl platform="windows"
+    while true
+    do
+    	if isnotplatform "windows"; then
+            break
+        fi
+        CFLAGS="$CFLAGS -I/mingw/include"    
+        LDFLAGS="$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 [ $? -eq 0 ]; then
+            CFLAGS="$CFLAGS `curl-config --cflags`"
+        else
+            break
+        fi
+        curl-config --ldflags > /dev/null
+        if [ $? -eq 0 ]; then
+            LDFLAGS="$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 [ $? -ne 0 ] ; then
+            break
+        fi
+        CFLAGS="$CFLAGS `$PKG_CONFIG --cflags libcurl`"
+        LDFLAGS="$LDFLAGS `$PKG_CONFIG --libs libcurl`"
+		echo yes
+        return 0
+    done
+	
+    # dependency curl 
+    while true
+    do
+        curl-config --cflags > /dev/null
+        if [ $? -eq 0 ]; then
+            CFLAGS="$CFLAGS `curl-config --cflags`"
+        else
+            break
+        fi
+        curl-config --ldflags > /dev/null
+        if [ $? -eq 0 ]; then
+            LDFLAGS="$LDFLAGS `curl-config --ldflags`"
+        else
+            break
+        fi
+        which curl-config > /dev/null
+        if [ $? -ne 0 ]; then
+        	break
+        fi
+		echo yes
+        return 0
+    done
+	
+	echo no
+	return 1
+}
+dependency_openssl()
+{
+    printf "checking for openssl... "
+    # dependency openssl platform="windows"
+    while true
+    do
+    	if isnotplatform "windows"; then
+            break
+        fi
+        LDFLAGS="$LDFLAGS -lssl -lcrypto"    
+		echo yes
+        return 0
+    done
+	
+    # dependency openssl platform="macos"
+    while true
+    do
+    	if isnotplatform "macos"; then
+            break
+        fi
+        LDFLAGS="$LDFLAGS -framework CoreFoundation"    
+		echo yes
+        return 0
+    done
+	
+    # dependency openssl platform="bsd"
+    while true
+    do
+    	if isnotplatform "bsd"; then
+            break
+        fi
+		if isplatform "macos"; then
+            break
+        fi
+        LDFLAGS="$LDFLAGS -lssl -lcrypto"    
+		echo yes
+        return 0
+    done
+	
+    # dependency openssl 
+    while true
+    do
+        if [ -z "$PKG_CONFIG" ]; then
+        	break
+        fi
+		$PKG_CONFIG openssl
+        if [ $? -ne 0 ] ; then
+            break
+        fi
+        CFLAGS="$CFLAGS `$PKG_CONFIG --cflags openssl`"
+        LDFLAGS="$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 [ $? -eq 0 ]; then
+            CFLAGS="$CFLAGS `xml2-config --cflags`"
+        else
+            break
+        fi
+        xml2-config --libs > /dev/null
+        if [ $? -eq 0 ]; then
+            LDFLAGS="$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 [ $? -eq 0 ]; then
+            CFLAGS="$CFLAGS `xml2-config --cflags`"
+        else
+            break
+        fi
+        xml2-config --libs > /dev/null
+        if [ $? -eq 0 ]; then
+            LDFLAGS="$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 [ $? -ne 0 ] ; then
+            break
+        fi
+        CFLAGS="$CFLAGS `$PKG_CONFIG --cflags libxml-2.0`"
+        LDFLAGS="$LDFLAGS `$PKG_CONFIG --libs libxml-2.0`"
+		echo yes
+        return 0
+    done
+	
+    # dependency libxml2 
+    while true
+    do
+        xml2-config --cflags > /dev/null
+        if [ $? -eq 0 ]; then
+            CFLAGS="$CFLAGS `xml2-config --cflags`"
+        else
+            break
+        fi
+        xml2-config --libs > /dev/null
+        if [ $? -eq 0 ]; then
+            LDFLAGS="$LDFLAGS `xml2-config --libs`"
+        else
+            break
+        fi
+		echo yes
+        return 0
+    done
+	
+	echo no
+	return 1
+}
+
+DEPENDENCIES_FAILED=
+ERROR=0
+# general dependencies
+CFLAGS=
+LDFLAGS=
+while true
+do
+    while true
+    do
+        
+        LDFLAGS="$LDFLAGS -lpthread"    
+        
+        break
+    done
+    
+    break
+done
+while true
+do
+    if isnotplatform "bsd"; then
+        break
+    fi
+    if isplatform "macos"; then
+        break
+    fi
+    while true
+    do
+        
+        CFLAGS="$CFLAGS -I/usr/local/include"    
+        LDFLAGS="$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 >> $TEMP_DIR/config.mk
+if [ ! -z "${CFLAGS}" ]; then
+    echo "CFLAGS += $CFLAGS" >> $TEMP_DIR/config.mk
+fi
+if [ ! -z "${CXXFLAGS}" ]; then
+    echo "CXXFLAGS += $CXXFLAGS" >> $TEMP_DIR/config.mk
+fi
+if [ ! -z "${LDFLAGS}" ]; then
+    echo "LDFLAGS += $LDFLAGS" >> $TEMP_DIR/config.mk
+fi
+
+#
+# OPTION VALUES
+#
+
+#
+# TARGETS
+#
+CFLAGS=
+CXXFLAGS=
+LDFLAGS=
+
+# Target: dav
+CFLAGS=
+LDFLAGS=
+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 >> $TEMP_DIR/config.mk
+if [ ! -z "${CFLAGS}" ]; then
+    echo "DAV_CFLAGS  += $CFLAGS" >> $TEMP_DIR/config.mk
+fi
+if [ ! -z "${CXXFLAGS}" ]; then
+    echo "DAV_CXXFLAGS += $CXXFLAGS" >> $TEMP_DIR/config.mk
+fi
+if [ ! -z "${LDFLAGS}" ]; then
+    echo "DAV_LDFLAGS += $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
+
+