diff --git a/ChangeLog.txt b/ChangeLog.txt
index a91480b9b4..6d64d42e11 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -7,6 +7,31 @@
    Entries may not always be in chronological/commit order.
    See license at the end of file. */
 
+2025-01-02 14:33 UTC+0100 Aleksander Czajczynski (hb fki.pl)
+  * config/global.mk
+  * config/win/clang-noauto.mk
+  * config/win/clang.mk
+    * supplemented config for Windows clang cross compilers
+      distributed in multilib fashion, like Martin Storsjo's:
+      https://github.com/mstorsjo/llvm-mingw
+
+    + HB_CCPREFIX= support for clang on Windows, you can build
+      ARM64 Harbour from AMD64 hosts using mentioned toolchain:
+      set PATH=C:\llvm-mingw\bin;%PATH%
+      set HB_COMPILER=clang
+      win-make (build for your host first)
+      set HB_CCPREFIX=aarch64-w64-mingw32-
+      set HB_HOST_BIN=<HarbourPath>\bin\win\clang\ (if not autodetected)
+      win-make
+
+    ; cross compiling from Unix hosts is not yet tested, but
+      looks very close to be possible
+
+    ! fixed typo's
+
+  * utils/hbmk2/hbmk2.prg
+    * changed llvm-ar call to also respect HB_CCPREFIX
+
 2024-12-29 00:28 UTC+0100 Aleksander Czajczynski (hb fki.pl)
   * src/rtl/hbproces.c
     ! in process creating functions like hb_processRun(), *Open(),
diff --git a/config/global.mk b/config/global.mk
index 936317dbb1..b9429955cc 100644
--- a/config/global.mk
+++ b/config/global.mk
@@ -711,22 +711,24 @@ ifeq ($(HB_COMPILER),)
                                  endif
                               endif
                            else
-                              HB_COMP_PATH := $(call find_in_path_raw,clang.exe)
+                              HB_COMP_PATH := $(call find_in_path_raw,$(HB_CCPREFIX)clang$(HB_HOST_BIN_EXT))
                               HB_COMP_PWD  := $(call dir_with_spaces,$(HB_COMP_PATH))
                               ifneq ($(HB_COMP_PATH),)
                                  HB_COMPILER := clang
-                                 ifneq ($(wildcard $(HB_COMP_PWD)aarch64-w64-mingw32-clang$(HB_HOST_BIN_EXT)),)
-                                    HB_CPU := arm64
-                                    MSYSTEM := CLANGARM64
-                                 else
-                                 ifneq ($(wildcard $(HB_COMP_PWD)x86_64-w64-mingw32-clang$(HB_HOST_BIN_EXT)),)
+                                 # following $(HB_CCPREFIX)x86_64..., etc. looks wrong, but it's intentional
+                                 # the goal is to pacify this multilib env best guessing when HB_CCPREFIX= is set
+                                 ifneq ($(wildcard $(HB_COMP_PWD)$(HB_CCPREFIX)x86_64-w64-mingw32-clang$(HB_HOST_BIN_EXT)),)
                                     HB_CPU := x86_64
                                     MSYSTEM := CLANG64
                                  else
-                                 ifneq ($(wildcard $(HB_COMP_PWD)i686-w64-mingw32-clang$(HB_HOST_BIN_EXT)),)
+                                 ifneq ($(wildcard $(HB_COMP_PWD)$(HB_CCPREFIX)i686-w64-mingw32-clang$(HB_HOST_BIN_EXT)),)
                                     HB_CPU := x86
                                     MSYSTEM := CLANG32
                                  else
+                                 ifneq ($(wildcard $(HB_COMP_PWD)$(HB_CCPREFIX)aarch64-w64-mingw32-clang$(HB_HOST_BIN_EXT)),)
+                                    HB_CPU := arm64
+                                    MSYSTEM := CLANGARM64
+                                 else
                                  ifneq ($(findstring /VC/Tools/Llvm/ARM64/,$(HB_COMP_PATH)),)
                                     MSYSTEM :=
                                     HB_CPU := arm64
@@ -743,7 +745,7 @@ ifeq ($(HB_COMPILER),)
                                     HB_CPU := x86
                                     MSYSTEM := CLANG32
                                  else
-                                    MSYSTEM := $(shell clang --version)
+                                    MSYSTEM := $(shell $(HB_CCPREFIX)clang --version)
                                     ifneq ($(findstring x86_64-pc-windows-msvc,$(MSYSTEM)),)
                                        MSYSTEM :=
                                        HB_CPU := x86_64
@@ -755,6 +757,7 @@ ifeq ($(HB_COMPILER),)
                                     ifneq ($(findstring aarch64-pc-windows-msvc,$(MSYSTEM)),)
                                        MSYSTEM :=
                                        HB_CPU := arm64
+                                    else
                                     ifneq ($(findstring x86_64-w64-windows-gnu,$(MSYSTEM)),)
                                        HB_CPU := x86_64
                                        MSYSTEM := CLANG64
@@ -791,7 +794,7 @@ ifeq ($(HB_COMPILER),)
                                        ifeq ($(HB_CPU),x86_64)
                                           export HB_BUILD_NAME := 64
                                        else
-                                          export HB_BUILD_NAME := HB_CPU
+                                          export HB_BUILD_NAME := $(HB_CPU)
                                        endif
                                     endif
                                  endif
diff --git a/config/win/clang-noauto.mk b/config/win/clang-noauto.mk
index 4bd552e4df..cef8e4e8a3 100644
--- a/config/win/clang-noauto.mk
+++ b/config/win/clang-noauto.mk
@@ -3,19 +3,23 @@
 # in Harbour 3.2 gcc has priority over clang for backwards compatibility
 
 # supp. actions if the set HB_COMPILER=clang was specified, not auto-detected
+
 ifneq ($(HB_COMPILER_ORI),)
-   HB_COMP_PATH := $(call find_in_path_raw,clang.exe)
+   HB_COMP_PATH := $(call find_in_path_raw,$(HB_CCPREFIX)clang$(HB_HOST_BIN_EXT))
    HB_COMP_PWD  := $(call dir_with_spaces,$(HB_COMP_PATH))
+
    ifneq ($(HB_COMP_PATH),)
-      ifneq ($(wildcard $(HB_COMP_PWD)../x86_64-w64-mingw32/lib/lib*.a),)
+      # following $(HB_CCPREFIX)x86_64..., etc. looks wrong, but it's intentional
+      # the goal is to pacify this multilib env best guessing when HB_CCPREFIX= is set
+      ifneq ($(wildcard $(HB_COMP_PWD)../$(HB_CCPREFIX)x86_64-w64-mingw32/lib/lib*.a),)
          MSYSTEM := CLANG64
          HB_CPU := x86_64
       else
-      ifneq ($(wildcard $(HB_COMP_PWD)../i686-w64-mingw32/lib/lib*.a),)
+      ifneq ($(wildcard $(HB_COMP_PWD)../$(HB_CCPREFIX)i686-w64-mingw32/lib/lib*.a),)
          MSYSTEM := CLANG32
          HB_CPU := x86
       else
-      ifneq ($(wildcard $(HB_COMP_PWD)../aarch64-w64-mingw32/lib/lib*.a),)
+      ifneq ($(wildcard $(HB_COMP_PWD)../$(HB_CCPREFIX)aarch64-w64-mingw32/lib/lib*.a),)
          MSYSTEM := CLANGARM64
          HB_CPU := arm64
       else
@@ -34,7 +38,7 @@ ifneq ($(HB_COMPILER_ORI),)
          MSYSTEM := CLANG32
          HB_CPU := x86
       else
-         MSYSTEM := $(shell clang --version)
+         MSYSTEM := $(shell $(HB_CCPREFIX)clang --version)
          ifneq ($(findstring x86_64-pc-windows-msvc,$(MSYSTEM)),)
             MSYSTEM :=
             HB_CPU := x86_64
@@ -46,6 +50,7 @@ ifneq ($(HB_COMPILER_ORI),)
          ifneq ($(findstring aarch64-pc-windows-msvc,$(MSYSTEM)),)
             MSYSTEM :=
             HB_CPU := arm64
+         else
          ifneq ($(findstring x86_64-w64-windows-gnu,$(MSYSTEM)),)
             HB_CPU := x86_64
             MSYSTEM := CLANG64
@@ -82,7 +87,7 @@ ifneq ($(HB_COMPILER_ORI),)
             ifeq ($(HB_CPU),x86_64)
                export HB_BUILD_NAME := 64
             else
-               export HB_BUILD_NAME := HB_CPU
+               export HB_BUILD_NAME := $(HB_CPU)
             endif
          endif
       endif
diff --git a/config/win/clang.mk b/config/win/clang.mk
index 7291aa4410..ca881587ea 100644
--- a/config/win/clang.mk
+++ b/config/win/clang.mk
@@ -15,7 +15,7 @@ endif
 
 HB_DYN_COPT := -DHB_DYNLIB
 
-CC := $(HB_CCPATH)$(HB_CMP)$(HB_CCSUFFIX)
+CC := $(HB_CCPATH)$(HB_CCPREFIX)$(HB_CMP)$(HB_CCSUFFIX)
 ifneq ($(filter --analyze, $(HB_USER_CFLAGS)),)
    CC_IN :=
 else
diff --git a/utils/hbmk2/hbmk2.prg b/utils/hbmk2/hbmk2.prg
index dc5bce5588..060d65781a 100644
--- a/utils/hbmk2/hbmk2.prg
+++ b/utils/hbmk2/hbmk2.prg
@@ -135,7 +135,7 @@
      5. If HB_COMPILER is not set,
         use the highest one on the priority list.
      NOTES: - Priority list: HB_CCPATH, PATH, embedded.
-            - Priority list: mingw, msvc, bcc, watcom, pocc, xcc
+            - Priority list: mingw, clang, msvc, bcc, watcom, pocc, xcc
             - Compilers of native CPU target have higher priority. (extra)
               On x86_64 Windows: msvc64, msvc, msvcia64, mingw64, mingw, ...
               On x86 Windows: msvc, msvc64, msvcia64, mingw, mingw64, ...
@@ -4458,7 +4458,7 @@ STATIC FUNCTION __hbmk( aArgs, nArgTarget, nLevel, /* @ */ lPause, /* @ */ lExit
          ENDIF
          cImpLibExt := cLibLibExt
          IF hbmk[ _HBMK_cCOMP ] == "clang"
-            cBin_Lib := "llvm-ar.exe"
+            cBin_Lib := hbmk[ _HBMK_cCCPREFIX ] + "llvm-ar" + hbmk[ _HBMK_cCCEXT ]
          ELSEIF hbmk[ _HBMK_cCOMP ] == "tcc"
             cBin_Lib := "tiny_libmaker.exe"
          ELSE