mk/llvm.mk

   1 # Copyright 2012 The Rust Project Developers. See the COPYRIGHT
   2 # file at the top-level directory of this distribution and at
   3 # http://rust-lang.org/COPYRIGHT.
   4 #
   5 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 # option. This file may not be copied, modified, or distributed
   9 # except according to those terms.
  10
  11
  12 ifdef CFG_ENABLE_FAST_MAKE
  13 LLVM_DEPS := $(S)/.gitmodules
  14 else
  15
  16 # This is just a rough approximation of LLVM deps
  17 LLVM_DEPS=$(call rwildcard,$(CFG_LLVM_SRC_DIR),*cpp *hpp)
  18 endif
  19
  20 define DEF_LLVM_RULES
  21
  22 # If CFG_LLVM_ROOT is defined then we don't build LLVM ourselves
  23 ifeq ($(CFG_LLVM_ROOT),)
  24
  25 $$(LLVM_CONFIG_$(1)): $$(LLVM_DEPS)
  26         @$$(call E, make: llvm)
  27         $$(Q)$$(MAKE) -C $$(CFG_LLVM_BUILD_DIR_$(1)) $$(CFG_LLVM_BUILD_ENV)
  28         $$(Q)touch $$(LLVM_CONFIG_$(1))
  29 endif
  30
  31 endef
  32
  33 $(foreach host,$(CFG_HOST_TRIPLES), \
  34  $(eval $(call DEF_LLVM_RULES,$(host))))