Add patchelf to tools

Makefile.in

@@ -163,7 +163,7 @@ tools : makedirs gdbinit mmake $(GENMFSCRIPT) $(ARCHTOOL) $(ELF2HUNK) \
 	$(FLEXCAT) $(CREATEDTDESC) \
 	$(ILBMTOC) $(ILBMTOICON) $(INFOINFO) \
 	$(COLLECT-AROS) $(AFSLIB) $(COPYTOAFS) \
-	$(FD2INLINE) $(FD2PRAGMA) $(SFDC) $(SETREV) $(PARSEOFFSETS)
+	$(FD2INLINE) $(FD2PRAGMA) $(SFDC) $(SETREV) $(PARSEOFFSETS) $(PATCHELF)
 	@$(NOP)
 
 # rebuild the crosstools if we are reconfigured, or its dependencies change.
@@ -255,6 +255,11 @@ $(SETREV): $(SRCDIR)/tools/setrev/setrev.c
 	@$(ECHO) Building setrev...
 	@$(CALL) $(MAKE) $(MKARGS) -C $(SRCDIR)/tools/setrev SRCDIR=$(SRCDIR) TOP=$(TOP)
 
+$(PATCHELF): $(SRCDIR)/tools/patchelf/patchelf.cc
+	@$(ECHO) Building patchelf...
+	@$(CALL) $(MAKE) $(MKARGS) -C $(SRCDIR)/tools/patchelf SRCDIR=$(SRCDIR) TOP=$(TOP)
+
+
 # MetaMake apparently requires a slighty different compilation. Probably
 # because it is sort-of an external package as well.
 

config/make.cfg.in

@@ -186,6 +186,7 @@ COLLECT-AROS                  := $(TOOLDIR)/collect-aros$(HOST_EXE_SUFFIX)
 GENMODULE                     := $(TOOLDIR)/genmodule$(HOST_EXE_SUFFIX)
 MKAMIKEYMAP                   := $(TOOLDIR)/mkamikeymap$(HOST_EXE_SUFFIX)
 SETREV                        := $(TOOLDIR)/setrev$(HOST_EXE_SUFFIX)
+PATCHELF                      := $(TOOLDIR)/patchelf$(HOST_EXE_SUFFIX)
 @make_extra_commands@
 RESIDENT_BEGIN                := compiler/libinit/libentry
 KICKSTART_BEGIN               := compiler/libinit/kickentry

tools/patchelf/LEGAL

@@ -0,0 +1,2 @@
+This software is GPLv3-licensed
+https://github.com/NixOS/patchelf

tools/patchelf/Makefile

@@ -0,0 +1,16 @@
+# Copyright © 2022, The AROS Development Team. All rights reserved.
+# $Id$
+
+include $(TOP)/config/make.cfg
+
+NOWARN_FLAGS := -Wall
+USER_CXXFLAGS := -std=c++17
+
+all : $(PATCHELF)
+
+$(PATCHELF) : patchelf.cc
+	@$(ECHO) "Compiling $(notdir $@)..."
+	@$(HOST_CXX) $(HOST_CXXFLAGS) $(USER_CXXFLAGS) $(NOWARN_FLAGS) $< -o $@
+
+clean:
+	@$(RM) -f $(PATCHELF)