Fix loop to be more accuratly timed, and added custom ruby libs inclusion setup

Makefile

@@ -14,6 +14,7 @@ CXX := $(CCACHE) clang++
 CC := $(CCACHE) clang
 
 # ---------------- SDL3 ----------------
+
 SDL_CFLAGS := $(shell pkg-config --cflags sdl3 sdl3-ttf sdl3-image)
 SDL_LIBS_DEBUG := $(shell pkg-config --libs sdl3 sdl3-ttf sdl3-image)
 SDL_LIBS_RELEASE := $(shell pkg-config --libs sdl3 sdl3-ttf sdl3-image)
@@ -42,9 +43,11 @@ PCH_CFLAGS_RELEASE := $(CFLAGS_RELEASE) -x c++-header
 
 LIBS := ./libs/mruby/build/host/lib/libmruby.a
 
+MGEM_DIR := ./libs/l_mgems
+
 # ---------------- SOURCES ----------------
 
-SRC := $(wildcard $(SRC_DIR)/*.cc) $(wildcard $(SRC_DIR)/**/*.cc)
+SRC := $(shell find $(SRC_DIR) -name "*.cc")
 
 OBJ_DEBUG := $(patsubst $(SRC_DIR)/%.cc,$(OBJ_DIR)/debug/%.o,$(SRC))
 OBJ_RELEASE := $(patsubst $(SRC_DIR)/%.cc,$(OBJ_DIR)/release/%.o,$(SRC))
@@ -54,13 +57,13 @@ DEP_RELEASE := $(OBJ_RELEASE:.o=.d)
 
 # ---------------- TARGETS ----------------
 
-.PHONY: all debug release clean setup
+.PHONY: all debug release clean setup mgems
 
 all: debug
 
-debug: $(TARGET_DEBUG)
+debug: mgems $(TARGET_DEBUG)
 
-release: $(TARGET_RELEASE)
+release: mgems $(TARGET_RELEASE)
 
 # ---------------- CLANGD ----------------
 
@@ -68,6 +71,11 @@ setup: setup.rb
 	@echo "Setting up clangd configuration..."
 	ruby setup.rb
 
+# ---------------- MRB_MGEMS ----------------
+
+mgems:
+	$(MGEM_DIR)/compile.sh
+
 # ---------------- PCH ----------------
 
 $(PCH_DEBUG): $(INCLUDE_DIR)/pch.h