--- Makefile.orig	2024-04-17 00:00:00.000000000 +0000
+++ Makefile	2024-04-17 00:00:01.000000000 +0000
@@ -27,15 +27,11 @@
 CP ?= cp
 OD ?= od
 
-OPT ?= -O3
-
 PREFIX ?= /usr/local
 
-CXXFLAGS ?= -g $(OPT) -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++17 -fPIC
-CXXFLAGS += -Iinclude -Ithird_party/md5 -Ithird_party/json -Ithird_party/rapidyaml/
-CFLAGS ?= -g $(OPT) -Wall -Wextra -pedantic -std=c99 -fPIC
-CFLAGS += -Iinclude
-MAKEDEPENDFLAGS += -Iinclude -Ithird_party/md5 -Ithird_party/json
+CXXFLAGS += -g -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++17 -fPIC -Iinclude -Ithird_party/md5 -I@@PREFIX@@/include/nlohmann -Ithird_party/rapidyaml/
+CFLAGS ?= -g -Wall -Wextra -pedantic -std=c99 -fPIC -Iinclude -I@@PREFIX@@/include/nlohmann
+MAKEDEPENDFLAGS += -Iinclude -Ithird_party/md5 -I@@PREFIX@@/include/nlohmann
 LDFLAGS ?=