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      1 ##===- Makefile --------------------------------------------*- Makefile -*-===##
      2 #
      3 #                     The LLVM Compiler Infrastructure
      4 #
      5 # This file is distributed under the University of Illinois Open Source
      6 # License. See LICENSE.TXT for details.
      7 #
      8 ##===----------------------------------------------------------------------===##
      9 
     10 # If CLANG_LEVEL is not set, then we are the top-level Makefile. Otherwise, we
     11 # are being included from a subdirectory makefile.
     12 
     13 ifndef CLANG_LEVEL
     14 
     15 IS_TOP_LEVEL := 1
     16 CLANG_LEVEL := .
     17 DIRS := utils/TableGen include lib tools runtime docs unittests
     18 
     19 PARALLEL_DIRS :=
     20 
     21 ifeq ($(BUILD_EXAMPLES),1)
     22   PARALLEL_DIRS += examples
     23 endif
     24 endif
     25 
     26 ifeq ($(BUILD_EXAMPLES),1)
     27   ENABLE_CLANG_EXAMPLES := 1
     28 else
     29   ENABLE_CLANG_EXAMPLES := 0
     30 endif
     31 
     32 ifeq ($(MAKECMDGOALS),libs-only)
     33   DIRS := $(filter-out tools docs, $(DIRS))
     34   OPTIONAL_DIRS :=
     35 endif
     36 ifeq ($(BUILD_CLANG_ONLY),YES)
     37   DIRS := $(filter-out docs unittests, $(DIRS))
     38   OPTIONAL_DIRS :=
     39 endif
     40 
     41 ###
     42 # Common Makefile code, shared by all Clang Makefiles.
     43 
     44 # Set LLVM source root level.
     45 LEVEL := $(CLANG_LEVEL)/../..
     46 
     47 # Include LLVM common makefile.
     48 include $(LEVEL)/Makefile.common
     49 
     50 ifneq ($(ENABLE_DOCS),1)
     51   DIRS := $(filter-out docs, $(DIRS))
     52 endif
     53 
     54 # Set common Clang build flags.
     55 CPP.Flags += -I$(PROJ_SRC_DIR)/$(CLANG_LEVEL)/include -I$(PROJ_OBJ_DIR)/$(CLANG_LEVEL)/include
     56 ifdef CLANG_VENDOR
     57 CPP.Flags += -DCLANG_VENDOR='"$(CLANG_VENDOR) "'
     58 endif
     59 ifdef CLANG_REPOSITORY_STRING
     60 CPP.Flags += -DCLANG_REPOSITORY_STRING='"$(CLANG_REPOSITORY_STRING)"'
     61 endif
     62 
     63 # Disable -fstrict-aliasing. Darwin disables it by default (and LLVM doesn't
     64 # work with it enabled with GCC), Clang/llvm-gcc don't support it yet, and newer
     65 # GCC's have false positive warnings with it on Linux (which prove a pain to
     66 # fix). For example:
     67 #   http://gcc.gnu.org/PR41874
     68 #   http://gcc.gnu.org/PR41838
     69 #
     70 # We don't need to do this if the host compiler is clang.
     71 ifneq ($(CXX_COMPILER), "clang")
     72 CXX.Flags += -fno-strict-aliasing
     73 endif
     74 
     75 
     76 # Set up Clang's tblgen.
     77 ifndef CLANG_TBLGEN
     78   ifeq ($(LLVM_CROSS_COMPILING),1)
     79     CLANG_TBLGEN := $(BuildLLVMToolDir)/clang-tblgen$(BUILD_EXEEXT)
     80   else
     81     CLANG_TBLGEN := $(LLVMToolDir)/clang-tblgen$(EXEEXT)
     82   endif
     83 endif
     84 ClangTableGen = $(CLANG_TBLGEN) $(TableGen.Flags)
     85 
     86 ###
     87 # Clang Top Level specific stuff.
     88 
     89 ifeq ($(IS_TOP_LEVEL),1)
     90 
     91 ifneq ($(PROJ_SRC_ROOT),$(PROJ_OBJ_ROOT))
     92 $(RecursiveTargets)::
     93 	$(Verb) for dir in test unittests; do \
     94 	  if [ -f $(PROJ_SRC_DIR)/$${dir}/Makefile ] && [ ! -f $${dir}/Makefile ]; then \
     95 	    $(MKDIR) $${dir}; \
     96 	    $(CP) $(PROJ_SRC_DIR)/$${dir}/Makefile $${dir}/Makefile; \
     97 	  fi \
     98 	done
     99 endif
    100 
    101 test::
    102 	@ $(MAKE) -C test
    103 
    104 report::
    105 	@ $(MAKE) -C test report
    106 
    107 clean::
    108 	@ $(MAKE) -C test clean
    109 
    110 libs-only: all
    111 
    112 tags::
    113 	$(Verb) etags `find . -type f -name '*.h' -or -name '*.cpp' | \
    114 	  grep -v /lib/Headers | grep -v /test/`
    115 
    116 cscope.files:
    117 	find tools lib include -name '*.cpp' \
    118 	                    -or -name '*.def' \
    119 	                    -or -name '*.td' \
    120 	                    -or -name '*.h' > cscope.files
    121 
    122 .PHONY: test report clean cscope.files
    123 
    124 endif
    125