Revert multiple source change commits for rebase.

tools/aif2pcm/Makefile

@@ -6,18 +6,12 @@ LIBS = -lm
 
 SRCS = main.c extended.c
 
-ifeq ($(OS),Windows_NT)
-EXE := .exe
-else
-EXE :=
-endif
-
 .PHONY: all clean
 
-all: aif2pcm$(EXE)
+all: aif2pcm
 	@:
 
-aif2pcm$(EXE): $(SRCS)
+aif2pcm: $(SRCS)
 	$(CC) $(CFLAGS) $(SRCS) -o $@ $(LDFLAGS) $(LIBS)
 
 clean: