--- Makefile.SH.orig	2013-02-23 12:44:25.420587388 +0100
+++ Makefile.SH	2013-02-23 12:51:32.923426243 +0100
@@ -302,10 +302,12 @@ LIB_EXT = $_a
 OBJ_EXT = $_o
 PATH_SEP = $p_
 
+ifeq (,\$(CROSS_PERL))
 # Macros to invoke a copy of miniperl during the build.  Targets which
 # are built using these macros should depend on \$(MINIPERL_EXE)
 MINIPERL_EXE = miniperl\$(EXE_EXT)
 MINIPERL = \$(LDLIBPTH) \$(RUN) ./miniperl\$(EXE_EXT) -Ilib
+HOST_MINIPERL = $(MINIPERL_EXE)
 
 # Macros to invoke a copy of our fully operational perl during the build.
 PERL_EXE = perl\$(EXE_EXT)
@@ -314,6 +316,23 @@ RUN_PERL = \$(LDLIBPTH) \$(RUN) ./perl\$
 # Macros to run our tests
 RUN_TESTS = \$(LDLIBPTH) ./runtests
 
+else # CROSS_PERL
+
+# Macros to invoke a copy of miniperl during the build.  Targets which
+# are built using these macros should depend on \$(MINIPERL_EXE)
+MINIPERL_EXE = miniperl\$(EXE_EXT)
+MINIPERL = \$(CROSS_PERL)
+HOST_MINIPERL = \$(CROSS_PERL)
+
+# Macros to invoke a copy of our fully operational perl during the build.
+PERL_EXE = perl\$(EXE_EXT)
+RUN_PERL = \$(CROSS_PERL)
+
+# Macros to run our tests
+RUN_TESTS = echo "Not running tests"
+
+endif # CROSS_PERL
+
 dynamic_ext = $dynamic_list
 dynamic_ext_re = $dynamic_ext_re
 static_ext = $static_list
@@ -559,6 +578,9 @@ all: $(FIRSTMAKEFILE) $(MINIPERL_EXE) $(
 	@echo " ";
 	@echo "	Everything is up to date. Type '$(MAKE) test' to run test suite."
 
+# Cross building requires a separate target to allow manipulation of the build tree
+extensions:     $(dynamic_ext) $(nonxs_ext)
+
 .PHONY: all translators utilities
 
 # Both git_version.h and lib/Config_git.pl are built
@@ -649,6 +671,9 @@ $spitshell >>$Makefile <<'!NO!SUBS!'
 
 globals$(OBJ_EXT): $(generated_headers)
 
+ifeq (,$(CROSS_PERL))
+# If we're cross-building, we should have uudmap.h and bitcount.h
+# provided already
 uudmap.h mg_data.h: bitcount.h
 
 bitcount.h: generate_uudmap$(HOST_EXE_EXT)
@@ -658,6 +683,7 @@ generate_uudmap$(OBJ_EXT): mg_raw.h
 
 generate_uudmap$(HOST_EXE_EXT): generate_uudmap$(OBJ_EXT)
 	$(CC) -o generate_uudmap$(EXE_EXT) $(LDFLAGS) generate_uudmap$(OBJ_EXT) $(libs)
+endif
 
 miniperlmain$(OBJ_EXT): miniperlmain.c patchlevel.h
 	$(CCCMD) $(PLDLFLAGS) $*.c
@@ -869,9 +895,15 @@ $(MINIPERL_EXE): $& $(mini_obj)
 		$spitshell >>$Makefile <<'!NO!SUBS!'
 $(MINIPERL_EXE): $& $(mini_obj)
 	-@rm -f miniperl.xok
+ifeq (,$(CROSS_PERL))
 	$(LDLIBPTH) $(CC) $(CLDFLAGS) -o $(MINIPERL_EXE) \
 	    $(mini_obj) $(libs)
 	$(LDLIBPTH) $(RUN) ./miniperl$(HOST_EXE_EXT) -w -Ilib -MExporter -e '<?>' || $(MAKE) minitest
+else
+	-rm $(MINIPERL_EXE)
+	ln -s $(HOST_MINIPERL) $(MINIPERL_EXE)
+endif
+
 !NO!SUBS!
 		;;
 	esac