tools/llvm-config/Makefile

   1 ##===- tools/llvm-config/Makefile --------------------------*- Makefile -*-===##
   2 #
   3 #                     The LLVM Compiler Infrastructure
   4 #
   5 # This file was developed by Reid Spencer and Eric Kidd and is distributed under
   6 # the University of Illinois Open Source License. See LICENSE.TXT for details.
   7 #
   8 ##===----------------------------------------------------------------------===##
   9
  10 LEVEL = ../..
  11
  12 EXTRA_DIST = LibDeps.txt FinalLibDeps.txt llvm-config.in.in find-cycles.pl
  13 REQUIRES_EH := 1
  14
  15 include $(LEVEL)/Makefile.common
  16
  17 # If we don't have Perl, we can't generate the library dependencies upon which
  18 # llvm-config depends. Therefore, only if we detect perl will we do anything
  19 # useful.
  20 ifeq ($(HAVE_PERL),1)
  21
  22 # Combine preprocessor flags (except for -I) and CXX flags.
  23 SUB_CFLAGS = ${CPP.BaseFlags} ${C.Flags}
  24 SUB_CXXFLAGS = ${CPP.BaseFlags} ${CXX.Flags}
  25
  26 # This is blank for now.  We need to be careful about adding stuff here:
  27 # LDFLAGS tend not to be portable, and we don't currently require the
  28 # user to use libtool when linking against LLVM.
  29 SUB_LDFLAGS =
  30
  31 FinalLibDeps = $(PROJ_OBJ_DIR)/FinalLibDeps.txt
  32 LibDeps      = $(PROJ_OBJ_DIR)/LibDeps.txt
  33 LibDepsTemp  = $(PROJ_OBJ_DIR)/LibDeps.txt.tmp
  34 GenLibDeps   = $(PROJ_SRC_ROOT)/utils/GenLibDeps.pl
  35
  36 $(LibDepsTemp): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
  37         $(Echo) "Regenerating LibDeps.txt.tmp"
  38         $(Verb) $(PERL) $(GenLibDeps) -flat $(LibDir) $(NM_PATH) > $(LibDepsTemp)
  39
  40 $(LibDeps): $(LibDepsTemp)
  41         $(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
  42           $(EchoCmd) Updated LibDeps.txt because dependencies changed )
  43
  44 # Find all the cyclic dependencies between various LLVM libraries, so we
  45 # don't have to process them at runtime.
  46 $(FinalLibDeps): find-cycles.pl $(LibDeps)
  47         $(Echo) "Checking for cyclic dependencies between LLVM libraries."
  48         $(Verb) $(PERL) $< < $(LibDeps) > $@ || rm -f $@
  49
  50 # Rerun our configure substitutions as needed.
  51 ConfigInIn = $(PROJ_SRC_DIR)/llvm-config.in.in
  52 llvm-config.in: $(ConfigInIn) $(ConfigStatusScript)
  53         $(Verb) cd $(PROJ_OBJ_ROOT) ; \
  54                 $(ConfigStatusScript) tools/llvm-config/llvm-config.in
  55
  56 # Build our final script.
  57 $(ToolDir)/llvm-config: llvm-config.in $(FinalLibDeps)
  58         $(Echo) "Building llvm-config script."
  59         $(Verb) $(ECHO) 's,@LLVM_CFLAGS@,$(SUB_CFLAGS),' > temp.sed
  60         $(Verb) $(ECHO) 's,@LLVM_CXXFLAGS@,$(SUB_CXXFLAGS),' >> temp.sed
  61         $(Verb) $(ECHO) 's,@LLVM_LDFLAGS@,$(SUB_LDFLAGS),' >> temp.sed
  62         $(Verb) $(ECHO) 's,@LLVM_BUILDMODE@,$(BuildMode),' >> temp.sed
  63         $(Verb) $(SED) -f temp.sed < $< > $@
  64         $(Verb) $(RM) temp.sed
  65         $(Verb) cat $(FinalLibDeps) >> $@
  66         $(Verb) chmod +x $@
  67
  68 else
  69 # We don't have perl, just generate a dummy llvm-config
  70 $(ToolDir)/llvm-config:
  71         $(Echo) "Building place holder llvm-config script."
  72         $(Verb) $(ECHO) 'echo llvm-config: Perl not found so llvm-config could not be generated' >> $@
  73         $(Verb) chmod +x $@
  74
  75 endif
  76 # Hook into the standard Makefile rules.
  77 all-local:: $(ToolDir)/llvm-config
  78 clean-local::
  79         $(Verb) $(RM) -f $(ToolDir)/llvm-config llvm-config.in $(FinalLibDeps) \
  80           $(LibDeps) GenLibDeps.out
  81 install-local:: all-local
  82         $(Echo) Installing llvm-config
  83         $(Verb) $(MKDIR) $(PROJ_bindir)
  84         $(Verb) $(ScriptInstall) $(ToolDir)/llvm-config $(PROJ_bindir)
  85