47 lines
1.5 KiB
Makefile
47 lines
1.5 KiB
Makefile
# Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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ifdef CFG_ENABLE_FAST_MAKE
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LLVM_DEPS := $(S)/.gitmodules
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else
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# This is just a rough approximation of LLVM deps
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LLVM_DEPS_SRC=$(call rwildcard,$(CFG_LLVM_SRC_DIR)/lib,*cpp *hpp)
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LLVM_DEPS_INC=$(call rwildcard,$(CFG_LLVM_SRC_DIR)/include,*cpp *hpp)
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LLVM_DEPS=$(LLVM_DEPS_SRC) $(LLVM_DEPS_INC)
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endif
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define DEF_LLVM_RULES
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# If CFG_LLVM_ROOT is defined then we don't build LLVM ourselves
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ifeq ($(CFG_LLVM_ROOT),)
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LLVM_STAMP_$(1) = $$(CFG_LLVM_BUILD_DIR_$(1))/llvm-auto-clean-stamp
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$$(LLVM_CONFIG_$(1)): $$(LLVM_DEPS) $$(LLVM_STAMP_$(1))
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@$$(call E, make: llvm)
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$$(Q)$$(MAKE) -C $$(CFG_LLVM_BUILD_DIR_$(1)) $$(CFG_LLVM_BUILD_ENV)
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$$(Q)touch $$(LLVM_CONFIG_$(1))
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endif
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# This is used to independently force an LLVM clean rebuild
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# when we changed something not otherwise captured by builtin
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# dependencies. In these cases, commit a change that touches
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# the stamp in the source dir.
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$$(LLVM_STAMP_$(1)): $(S)src/rustllvm/llvm-auto-clean-trigger
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$(Q)$(MAKE) clean-llvm
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touch $$@
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endef
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$(foreach host,$(CFG_HOST_TRIPLES), \
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$(eval $(call DEF_LLVM_RULES,$(host))))
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