diff --git a/sdk/src/sdcc.inc.mk b/sdk/src/sdcc.inc.mk
index 1733973..dba6a4a 100644
--- a/sdk/src/sdcc.inc.mk
+++ b/sdk/src/sdcc.inc.mk
@@ -99,10 +99,10 @@ install-sdcc: | sdcc/.extracted
 	for d in $(SDCC_SUBDIRS); do\
 		if [ $$d = bin ]; then\
 			find $$d -type f\
-			| awk '{print gensub(/^(.+)\/([^/]+)/, "$$(DEST)$$(prefix)/\\1/\\2: \\1/\\2 | $$(DEST)$$(prefix)/\\1\n\t$$(INSTALL_PROGRAM) -m 755 $$< $$@", "g")}';\
+			| sed -Ee 's,^(.+)/([^/]+),$$(DEST)$$(prefix)/\1/\2: \1/\2 | $$(DEST)$$(prefix)/\1\n\t$$(INSTALL_PROGRAM) -m 755 $$< $$@,';\
 		else\
 			find $$d -type f\
-			| awk '{print gensub(/^(.+)\/([^/]+)/, "$$(DEST)$$(prefix)/\\1/\\2: \\1/\\2 | $$(DEST)$$(prefix)/\\1\n\t$$(INSTALL) -m 644 $$< $$@", "g")}';\
+			| sed -Ee 's,^(.+)/([^/]+),$$(DEST)$$(prefix)/\1/\2: \1/\2 | $$(DEST)$$(prefix)/\1\n\t$$(INSTALL) -m 755 $$< $$@,';\
 		fi;\
 	done; } >install.mk;\
 	$(MAKE) -w -f install.mk DEST=$(DEST) prefix=$(prefix) INSTALL=$(INSTALL) INSTALL_PROGRAM=$(INSTALL_PROGRAM) install