diff --git a/mod_php_install.sh b/mod_php_install.sh
index b8fbd16..15f2147 100755
--- a/mod_php_install.sh
+++ b/mod_php_install.sh
@@ -114,33 +114,53 @@ is_int() {
    return $(test "$@" -eq "$@" > /dev/null 2>&1);
 }
 
-detect_os_1 () {
-
-   if $(which lsb_release > /dev/null 2>&1) ; then
-
-      os_dist="$(lsb_release -i | awk '{print tolower($3)}')"
-      os_version="$(lsb_release -r | awk '{print tolower($2)}')"
-      os_codename="$(lsb_release -c | awk '{print tolower($2)}')"
-
-      if [[ "$os_dist" = "debian" ]]; then
-         if $(echo "$os_version" | grep -q '\.') ; then
-            os_version=$(echo "$os_version" | cut --delimiter='.' -f1)
-         fi
-      fi
-
-   elif [[ -e "/etc/os-release" ]]; then
+detect_os_1() {
+   if [[ -r /etc/os-release ]]; then
 
       . /etc/os-release
 
-      os_dist=$ID
-      os_version=${os_version_ID}
+      os_dist="$ID"
+      os_version="$VERSION_ID"
 
+      # Familie bestimmen
+      if [[ "$ID" == "debian" ]] || [[ "$ID_LIKE" == *"debian"* ]]; then
+         os_family="debian"
+      elif [[ "$ID" == "rhel" ]] || [[ "$ID_LIKE" == *"rhel"* ]]; then
+         os_family="rhel"
+      elif [[ "$ID" == "arch" ]] || [[ "$ID_LIKE" == *"arch"* ]]; then
+         os_family="arch"
+      else
+         os_family="$ID"
+      fi
+
+   elif which lsb_release > /dev/null 2>&1 ; then
+
+      local dist version
+
+      dist=$(lsb_release -is 2>/dev/null | tr '[:upper:]' '[:lower:]')
+      version=$(lsb_release -rs 2>/dev/null | cut -d. -f1)  # Major Version
+
+      os_dist="$dist"
+      os_version="$version"
+
+      case "$dist" in
+         debian|ubuntu|linuxmint)
+            os_family="debian"
+            ;;
+         rhel|centos|rocky|fedora)
+            os_family="rhel"
+            ;;
+         arch)
+            os_family="arch"
+            ;;
+         *)
+            os_family="$dist"
+            ;;
+      esac
    fi
 
-   # remove whitespace from os_dist and os_version
-   os_dist="${os_dist// /}"
-   os_version="${os_version// /}"
-
+    # Nur Major-Version extrahieren (z.B. 12 aus 12.5)
+   os_version=${os_version%%.*}
 }
 ## ---
 ## --- END: functions
@@ -258,7 +278,7 @@ fi
 # - Set variable
 # -    os_dist
 # -    os_version
-# -    os_codename
+# -    os_family
 # -
 detect_os_1
 
@@ -367,20 +387,15 @@ _required_base_packages="$_required_base_packages
    vpx-tools"
 
 
-   # libcroco3-dev
-
 # libc-client-dev is no longer available on debian 13
 #
-if [[ "$os_dist" = "debian" ]] && [[ $os_version -lt 13 ]] ; then
-   _required_base_packages="$_required_base_packages
-      libc-client-dev"
-fi
-
+#
 # Package libpcre3-dev is not availabl at debian 13, but libpcre2-dev is
 # available there.
 #
-if [[ "$os_dist" = "debian" ]] && [[ $os_version -lt 13 ]] ; then
+if [[ "$os_dist" == "debian" ]] && (( os_version < 13 )); then
    _required_base_packages="$_required_base_packages
+      libc-client-dev
       libpcre3-dev"
 else
    _required_base_packages="$_required_base_packages
@@ -395,7 +410,7 @@ if [[ "$os_dist" != "ubuntu" ]] ; then
       libgraphicsmagick++3"
 fi
 
-if [[ "$os_dist" = "debian" ]] && [[ $os_version -lt 9 ]] ; then
+if [[ "$os_dist" == "debian" ]] && (( os_version < 9 )); then
 	_required_base_packages="$_required_base_packages
    	libjasper-dev
    	libpng12-dev"
@@ -410,7 +425,8 @@ else
    fi
 fi
 
-if [[ "$os_dist" = "debian" ]] && [[ $os_version -eq 7 ]] ; then
+if [[ "$os_dist" == "debian" ]] && (( os_version == 7 )); then
+
 	_required_base_packages="$_required_base_packages
       libgd2-xpm-dev
    	libdb5.1 libdb5.1++ libdb5.1++-dev libdb5.1-dev"
@@ -509,18 +525,146 @@ PHP_MAIN_VERSION=`echo $VERSION | cut -d '.' -f1,2`
 declare -i PHP_MAJOR_VERSION=`echo $VERSION | cut -d '.' -f1`
 declare -i PHP_MINOR_VERSION=`echo $VERSION | cut -d '.' -f2`
 declare -i PHP_PATCH_LEVEL=`echo $VERSION | cut -d '.' -f3`
-declare -i PHP_MAIN_VERSION_NUM=$((PHP_MAJOR_VERSION * 100 + PHP_MINOR_VERSION * 10))
-declare -i PHP_VERSION_NUM=$((PHP_MAJOR_VERSION * 100 + PHP_MINOR_VERSION * 10 + PHP_PATCH_LEVEL))
-#echo ""
-#echo "PHP_MAIN_VERSION_NUM:   $PHP_MAIN_VERSION_NUM"
-#echo "PHP_VERSION_NUM:        $PHP_VERSION_NUM"
-#echo ""
+
+# besser so:
+#
+#     declare -i PHP_VERSION_NUM=$((10#$major * 10000 + 10#$minor * 100 + 10#$patch))
+#
+# '10#' verhindert Probleme mit führenden Nullen
+#
+# Bemerkung:
+#
+#  um 2-stellige minor versionen korrekt zu behandeln, nehmen wir die major version * 10000
+#
+#  versionen:
+#     8.10.1
+#     8.9.15
+#
+#  mit 1000 ergibt sich
+#     8.10.1 ->  8*1000 + 10*10 + 1  = 8101
+#     8.9.15 ->  8*1000 + 9*10 + 15  = 8105
+#
+#     8101 < 8105 aber tatsächlich ist 8.10.1 > 8.9.15
+#
+#  mit 10000 ergibt sich:
+#     8.10.1 ->  8*10000 + 10*10 + 1  = 81001
+#     8.9.15 ->  8*10000 + 9*10 + 15  = 80915
+#
+#     8101 < 8105 aber tatsächlich ist 8.10.1 > 8.9.15
+#     und damit (richtigerweise): 81001 > 80915
+#
+IFS='.' read -r major minor patch <<< "$VERSION"
+declare -i PHP_VERSION_NUM=$((10#$major * 10000 + 10#$minor * 100 + 10#$patch))
+declare -i PHP_MAIN_VERSION_NUM=$((10#$major * 10000 + 10#$minor * 100))
+
+# version helper scripts
+#
+version_to_number() {
+   local a b c
+   IFS='.' read -r a b c <<< "$1"
+   echo $((10#$a * 10000 + 10#$b * 100 + 10#${c:-0}))
+}
+
+version_eq() {
+   local v1=$(version_to_number "$1")
+   local v2=$(version_to_number "$2")
+   (( v1 == v2 ))
+}
+
+version_lt() {
+   local v1=$(version_to_number "$1")
+   local v2=$(version_to_number "$2")
+   (( v1 < v2 ))
+}
+
+version_le() {
+   local v1=$(version_to_number "$1")
+   local v2=$(version_to_number "$2")
+   (( v1 <= v2 ))
+}
+
+version_gt() {
+   local v1=$(version_to_number "$1")
+   local v2=$(version_to_number "$2")
+   (( v1 > v2 ))
+}
+
+version_ge() {
+   local v1=$(version_to_number "$1")
+   local v2=$(version_to_number "$2")
+   (( v1 >= v2 ))
+}
+
+main_version_eq() {
+    local a b x y
+    IFS='.' read -r a b _ <<< "$1"
+    IFS='.' read -r x y _ <<< "$2"
+
+    local v1=$((10#$a * 100 + 10#$b))
+    local v2=$((10#$x * 100 + 10#$y))
+
+    (( v1 == v2 ))
+}
+
+main_version_lt() {
+    local a b x y
+    IFS='.' read -r a b _ <<< "$1"
+    IFS='.' read -r x y _ <<< "$2"
+
+    local v1=$((10#$a * 100 + 10#$b))
+    local v2=$((10#$x * 100 + 10#$y))
+    (( v1 < v2 ))
+}
+
+main_version_le() {
+   local a b x y
+   IFS='.' read -r a b _ <<< "$1"
+   IFS='.' read -r x y _ <<< "$2"
+
+   local v1=$((10#$a * 100 + 10#$b))
+   local v2=$((10#$x * 100 + 10#$y))
+
+   (( v1 <= v2 ))
+}
+
+main_version_gt() {
+   local a b x y
+   IFS='.' read -r a b _ <<< "$1"
+   IFS='.' read -r x y _ <<< "$2"
+
+   local v1=$((10#$a * 100 + 10#$b))
+   local v2=$((10#$x * 100 + 10#$y))
+   (( v1 > v2 ))
+}
+
+main_version_ge() {
+   local a b x y
+   IFS='.' read -r a b _ <<< "$1"
+   IFS='.' read -r x y _ <<< "$2"
+
+   local v1=$((10#$a * 100 + 10#$b))
+   local v2=$((10#$x * 100 + 10#$y))
+
+   (( v1 <= v2 ))
+}
+
+# --- Hauptversion in numerischer Form (Major*100 + Minor)
+main_version_num() {
+    local a b
+    IFS='.' read -r a b _ <<< "$1"
+    echo $((10#$a * 100 + 10#$b))
+}
+
+# --- Vollständige Version in numerischer Form (Major*10000 + Minor*100 + Patch)
+version_num() {
+    version_to_number "$1"
+}
 
 # Since version 7.4 package 'libsqlite3-dev' is needed
 # Since version 7.4 package 'libonig-dev' is needed
 #
-if ([[ "$PHP_MAJOR_VERSION" -eq 7 ]] && [[ "$PHP_MINOR_VERSION" -gt 3 ]]) \
-   || [[ "$PHP_MAJOR_VERSION" -gt 7 ]] ; then
+#if (( PHP_MAIN_VERSION_NUM >= 70400 )); then
+if version_ge "$VERSION" "7.4.0"; then
       needed_debian_packages="$needed_debian_packages
    libsqlite3-dev
    libonig-dev"
@@ -528,19 +672,21 @@ fi
 
 # - A hack, because configure don't work with systemd on version 5.4.x
 ## -
-if [[ "$PHP_MAIN_VERSION" = "5.4" ]]; then
+#if (( PHP_MAIN_VERSION_NUM == 50400 )) ; then
+if main_version_eq "${VERSION}" "5.4"; then
    SYSTEMD_EXISTS=false
 fi
 
 ## - Let make use multiple cores (-j<number of cores +1>)
 ## -
-if [[ "$PHP_MAIN_VERSION" != "5.4" ]]; then
+if ! main_version_eq "$VERSION" "5.4"; then
    export MAKEFLAGS=-j$(expr `grep  "^processor" /proc/cpuinfo | sort -u | wc -l` + 1)
 else
    unset MAKEFLAGS
 fi
-
-if [[ "$PHP_MAIN_VERSION" = "5.6" ]] && [[ $os_version -gt 12 ]]; then
+if main_version_eq "$VERSION" "5.6" &&
+   (( os_version >= 13 )) &&
+   [[ "$os_dist" == "debian" ]] ; then
 
       warn "For php version 5.6 at debian 13 and above, you need manual installation of
 
@@ -555,16 +701,20 @@ if [[ "$PHP_MAIN_VERSION" = "5.6" ]] && [[ $os_version -gt 12 ]]; then
 \t                cyrus-sasl compiled against openssl 1.1
 \t                openldap compiled against cyrus-sasl"
 
-elif [[ "$PHP_MAIN_VERSION" = "5.6" ]] && [[ $os_version -gt 11 ]]; then
+elif main_version_eq "$VERSION" "5.6" &&
+   (( os_version >= 12 )) &&
+   [[ "$os_dist" == "debian" ]] ; then
 
       warn "For php version 5.6 at debian 12 and above, you need manual installation of
 
 \t                freetype (libfreetype6-dev)
 \t                libxml2
 \t                icu4c (libicu)
-\t                openssl v 1.1.1 "
+\t                openssl v 1.1.1"
 
-elif [[ "$PHP_MAIN_VERSION" = "5.6" ]] && [[ $os_version -gt 9 ]]; then
+elif main_version_eq "$VERSION" "5.6" &&
+   (( os_version >= 10 )) &&
+   [[ "$os_dist" == "debian" ]] ; then
 
       warn "For php version 5.6 at debian 10 and above, you need manual installation of
 
@@ -5917,7 +6067,7 @@ fi
 
 _patch_file="php-5.6-zlib-1.2.11.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file}  > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -5958,7 +6108,7 @@ fi
 
 _patch_file="php-5.6-libmagic.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -5999,7 +6149,7 @@ fi
 
 _patch_file="php-5.6-mbfl_encoding.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6040,7 +6190,7 @@ fi
 
 _patch_file="php-5.6-mbfl_put_invalid_char.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6081,7 +6231,7 @@ fi
 
 _patch_file="php-5.6-session.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6122,7 +6272,7 @@ fi
 
 _patch_file="php-5.6-wddx.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6163,7 +6313,7 @@ fi
 
 _patch_file="php-5.6-mkstemp.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6204,7 +6354,7 @@ fi
 
 _patch_file="php-5.6-reentrancy.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6245,7 +6395,7 @@ fi
 
 _patch_file="php-5.6-cast.patch"
 echononl "\tApply ${_patch_file}"
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if [[ -f "${_srcdir}/${_patch_file}" ]] ; then
       patch -d $_builddir -p0 < ${_srcdir}/${_patch_file} > $tmp_err_msg 2>&1
       if [[ $? -eq 0 ]]; then
@@ -6315,7 +6465,7 @@ echononl "\tGoing to configure.."
 ## CPP="/usr/bin/cpp-3.4" \
 ## CFLAGS="$_cflags" LDFLAGS="-s" \
 
-#if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+#if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
 #   export CFLAGS="-O2 -fno-strict-aliasing -Wno-error=incompatible-pointer-types"
 #fi
 if $_install_openldap ; then
@@ -6356,7 +6506,6 @@ config_params="
    --with-xsl
    --with-mhash
    --enable-cgi
-   --with-ldap=shared
    --with-xmlrpc"
 
 
@@ -6402,7 +6551,7 @@ else
    --with-curl"
 fi
 
-if (( PHP_VERSION_NUM < 704 && os_version >= 13 )); then
+if main_version_le "$VERSION" "7.3" && (( os_version >= 13 )); then
    if $_install_openldap ; then
       config_params="${config_params}
    --with-ldap"