message: Simplify makefile (NFC)
diff: @@ -6,8 +6,7 @@ SWIFT_SOURCES := main.swift
  all: module.modulemap conflict.h a.out
  include $(LEVEL)/Makefile.rules
  -# $(PWD) is not what we want because VPATH changes it
  -SWIFTFLAGS += -Xcc -F$(SRCDIR) -I$(SRCDIR) -I$(shell pwd)
  +SWIFTFLAGS += -Xcc -F$(SRCDIR) -I$(SRCDIR) -I$(BUILDDIR)
  # Create a nonmodular include by removing the modulemap after building.
  all:
  