Index: src/Makefile.am
===================================================================
--- src/Makefile.am	(revision 176)
+++ src/Makefile.am	(working copy)
@@ -19,24 +19,17 @@
 endif
 
 if USE_LUA
+lua2c_LIBS ?= -llua -ldl -lm
+lua2c_LDFLAGS ?= -Wl,-E
+lua2c:	lua2c.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(lua2c_LDFLAGS) \
+		-o $@ $^ $(lua2c_LIBS)
 
-haserl_lualib.inc : haserl_lualib.lua 
-	@echo '-----------------------------------------------------'
-	@echo 'Whoops.   haserl_lualib.inc is old.  You will need'
-	@echo 'to compile lua2c by hand, or help the maintainer'
-	@echo 'get automake to do it for you.'
-	@echo ''
-	@echo 'For now, to compile lua2c:'
-	@echo ''
-	@echo 'gcc -I<luaheaderdir> -Wl,-E -L<lualibdir> -o lua2c lua2c.c -llua -ldl -lm'
-	@echo ''
-	@echo ''
-	@echo 'Then follow the instructions in lua2c.c to create a'
-	@echo 'new haserl_lualib.inc'
-	@echo ''
-	@echo 'Sorry.'
-	@echo '-----------------------------------------------------'
-	@exit 1
+haserl_lualib.inc : haserl_lualib.lua lua2c
+	if ! ./lua2c haserl_lualib haserl_lualib.lua >$@; then \
+		rm $@; \
+		exit 1 ;\
+	fi
 
 h_lua_common.c : haserl_lualib.inc
 
Index: configure.ac
===================================================================
--- configure.ac	(revision 176)
+++ configure.ac	(working copy)
@@ -7,6 +7,12 @@
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
+# allow differnt compiler for build tools in case cross compiling
+if test -z "$CC_FOR_BUILD"; then
+	CC_FOR_BUILD="$CC"
+fi
+AC_SUBST(CC_FOR_BUILD)
+
 # Checks for libraries.
 
 # Checks for header files.