diff -up ./vendor/Makefile.fixbuild ./vendor/Makefile
--- ./vendor/Makefile.fixbuild	2026-05-19 00:12:18.000000000 +0200
+++ ./vendor/Makefile	2026-05-19 07:32:35.225911382 +0200
@@ -1,6 +1,6 @@
 all:
 	@if [ ! -f lua/Makefile ]; then echo "Missing lua application, run $(CURDIR)/fetch.sh script to download it"; exit 1; fi
-	cd lua && $(MAKE) all MYCFLAGS="-g" && cd ..
+	cd lua && $(MAKE) all MYCFLAGS="@CFLAGS@" && cd ..
 
 clean:
 	cd lua && $(MAKE) clean && cd ..
diff -up ./vendor/mcmc/Makefile.fixbuild ./vendor/mcmc/Makefile
--- ./vendor/mcmc/Makefile.fixbuild	2023-03-13 19:25:16.000000000 +0100
+++ ./vendor/mcmc/Makefile	2026-05-19 07:31:24.938617499 +0200
@@ -1,9 +1,10 @@
 # gcc -g -Wall -Werror -pedantic -o example example.c mcmc.c
 PREFIX=/usr/local
+MYCFLAGS=
 
 all:
-	gcc -g -O2 -Wall -Werror -pedantic -o example example.c mcmc.c
-	gcc -g -O2 -Wall -Werror -pedantic -c mcmc.c
+	gcc -g -O2 -Wall -Werror -pedantic -o example example.c mcmc.c $(MYCFLAGS)
+	gcc -g -O2 -Wall -Werror -pedantic -c mcmc.c $(MYCFLAGS)
 
 clean:
 	rm -f example mcmc.o