Index: Makefile.in
==================================================================
--- Makefile.in
+++ Makefile.in
@@ -41,11 +41,11 @@
 
 tcc/libtcc.a: tcc/config.h
 	$(MAKE) -C tcc libtcc.a
 
 tcc/libtcc1.a: tcc/config.h
-	-if [ '@build@' = '@host@' ]; then $(MAKE) -C tcc tcc; fi
+	-$(MAKE) -C tcc tcc@EXEEXT@
 	$(MAKE) -C tcc libtcc1.a
 
 tcc4tcl.o: $(srcdir)/tcc4tcl.c $(srcdir)/tcc/tcc.h $(srcdir)/tcc/libtcc.h tcc/config.h
 	$(CC) $(CPPFLAGS) $(CFLAGS) -o tcc4tcl.o -c $(srcdir)/tcc4tcl.c
 
@@ -95,11 +95,11 @@
 			sed 's/@@VERS@@/0.0/g' "$${file}" > "$${file}.new"; \
 			cat "$${file}.new" > "$${file}"; \
 			rm -f "$${file}.new"; \
 		done \
 	); fi
-	$(TCLSH) $(srcdir)/test.tcl __TMP__
+	if [ '@build@' = '@host@' ]; then TCC4TCL_TEST_RUN_NATIVE=1; export TCC4TCL_TEST_RUN_NATIVE; fi; $(TCLSH) $(srcdir)/test.tcl __TMP__
 	echo Tests Completed OK > TEST-STATUS
 	rm -rf __TMP__
 
 clean:
 	rm -f tcc4tcl.o

Index: test.tcl
==================================================================
--- test.tcl
+++ test.tcl
@@ -77,18 +77,20 @@
 ## Delete without performing
 set handle [tcc4tcl::new]
 $handle delete
 
 # External functions (requires .a files)
-set handle [tcc4tcl::new]
-$handle ccode {const char *curl_version(void);}
-$handle cproc curl_version {} vstring
-$handle add_library_path /usr/lib64
-$handle add_library_path /usr/lib
-$handle add_library curl
-$handle go
-puts [curl_version]
+if {[info exists ::env(TCC4TCL_TEST_RUN_NATIVE)]} {
+	set handle [tcc4tcl::new]
+	$handle ccode {const char *curl_version(void);}
+	$handle cproc curl_version {} vstring
+	$handle add_library_path /usr/lib64
+	$handle add_library_path /usr/lib
+	$handle add_library curl
+	$handle go
+	puts [curl_version]
+}
 
 # wide values
 set handle [tcc4tcl::new]
 $handle cproc wideTest {Tcl_WideInt x} Tcl_WideInt {
 	return(x);
@@ -95,16 +97,18 @@
 }
 $handle go
 puts [wideTest 30]
 
 # Produce a loadable object
-set tmpfile "/tmp/DELETEME_tcc4tcl_test_exec[expr rand()].so"
-file delete $tmpfile
-set handle [tcc4tcl::new $tmpfile "myPkg 0.1"]
-$handle cproc ext_add {int a int b} long { return(a+b); }
-$handle add_library_path /usr/lib64
-$handle add_library_path /usr/lib
-$handle add_library tclstub8.5
-$handle go
-load $tmpfile myPkg
-puts [ext_add 1 42]
-file delete $tmpfile
+if {[info exists ::env(TCC4TCL_TEST_RUN_NATIVE)]} {
+	set tmpfile "/tmp/DELETEME_tcc4tcl_test_exec[expr rand()].so"
+	file delete $tmpfile
+	set handle [tcc4tcl::new $tmpfile "myPkg 0.1"]
+	$handle cproc ext_add {int a int b} long { return(a+b); }
+	$handle add_library_path /usr/lib64
+	$handle add_library_path /usr/lib
+	$handle add_library tclstub8.5
+	$handle go
+	load $tmpfile myPkg
+	puts [ext_add 1 42]
+	file delete $tmpfile
+}