From f4b322a822186c5c32c647ed2bad95582a09d9ab Mon Sep 17 00:00:00 2001
From: Timo Korvola <tkorvola@iki.fi>
Date: Mon, 5 Mar 2018 20:53:50 +0200
Subject: [PATCH] Safer ar rules.

This should be safe for make -j.  The default rules are not.
---
 src/sdl/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/sdl/Makefile b/src/sdl/Makefile
index c0ca1fe..f0bd8c7 100644
--- a/src/sdl/Makefile
+++ b/src/sdl/Makefile
@@ -3,7 +3,6 @@
 SDL_PKGS ?= libpng libjpeg libsdl SDL_mixer freetype2 zlib
 
 CFLAGS += `pkg-config $(SDL_PKGS) --cflags`
-ARFLAGS = rvU
 
 SOURCES = sf_fonts.c sf_msg_en.c sf_resource.c sf_util.c \
 	sf_deffont.c sf_ftype.c sf_osfdlg.c sf_sig.c sf_video.c \
@@ -20,7 +19,8 @@ TARGET = frotz_sdl.a
 .PHONY: clean distclean
 .DELETE_ON_ERROR:
 
-$(TARGET): $(TARGET)($(OBJECTS))
+$(TARGET): $(OBJECTS)
+	$(AR) $(ARFLAGS) $@ $?
 	ranlib $@
 
 clean:
-- 
2.34.1