https://gitlab.com/DavidGriffith/frotz/-/commit/52be64afc92a6ea0a982ff83205a67cbfb94b619
From 52be64afc92a6ea0a982ff83205a67cbfb94b619 Mon Sep 17 00:00:00 2001
From: David Griffith <dave@661.org>
Date: Thu, 6 Feb 2025 19:16:11 -0800
Subject: [PATCH] Fixed potential SDL interface build failure when using "make
 -j".

---
 src/sdl/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sdl/Makefile b/src/sdl/Makefile
index e21477e6..fd07089c 100644
--- a/src/sdl/Makefile
+++ b/src/sdl/Makefile
@@ -31,7 +31,7 @@ $(TARGET): $(DEFINES) $(OBJECTS) | $(DEFINES)
 	$(RANLIB) $@
 	@echo "** Done with SDL interface."
 
-%.o: %.c
+%.o: %.c $(DEFINES)
 	$(CC) $(CFLAGS) $(SDL_CFLAGS) -fPIC -fpic -o $@ -c $<
 
 $(DEFINES):
-- 
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