tools/llvm-config/Makefile

   1 ##===- tools/llvm-config/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 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_CPPFLAGS = ${CPP.BaseFlags}
  24 SUB_CFLAGS   = ${CPP.BaseFlags} ${C.Flags}
  25 SUB_CXXFLAGS = ${CPP.BaseFlags} ${CXX.Flags}
  26
  27 # This is blank for now.  We need to be careful about adding stuff here:
  28 # LDFLAGS tend not to be portable, and we don't currently require the
  29 # user to use libtool when linking against LLVM.
  30 SUB_LDFLAGS =
  31
  32 FinalLibDeps = $(PROJ_OBJ_DIR)/FinalLibDeps.txt
  33 LibDeps      = $(PROJ_OBJ_DIR)/LibDeps.txt
  34 LibDepsTemp  = $(PROJ_OBJ_DIR)/LibDeps.txt.tmp
  35 GenLibDeps   = $(PROJ_SRC_ROOT)/utils/GenLibDeps.pl
  36
  37 $(LibDepsTemp): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
  38         $(Echo) "Regenerating LibDeps.txt.tmp"
  39         $(Verb) $(PERL) $(GenLibDeps) -flat $(LibDir) "$(NM_PATH)" > $(LibDepsTemp)
  40
  41 $(LibDeps): $(LibDepsTemp)
  42         $(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
  43           $(EchoCmd) Updated LibDeps.txt because dependencies changed )
  44
  45 # Find all the cyclic dependencies between various LLVM libraries, so we
  46 # don't have to process them at runtime.
  47 $(FinalLibDeps): find-cycles.pl $(LibDeps)
  48         $(Echo) "Checking for cyclic dependencies between LLVM libraries."
  49         $(Verb) $(PERL) $< < $(LibDeps) > $@ || rm -f $@
  50
  51 # Rerun our configure substitutions as needed.
  52 ConfigInIn = $(PROJ_SRC_DIR)/llvm-config.in.in
  53 llvm-config.in: $(ConfigInIn) $(ConfigStatusScript)
  54         $(Verb) cd $(PROJ_OBJ_ROOT) ; \
  55                 $(ConfigStatusScript) tools/llvm-config/llvm-config.in
  56
  57 # Build our final script.
  58 $(ToolDir)/llvm-config: llvm-config.in $(FinalLibDeps)
  59         $(Echo) "Building llvm-config script."
  60         $(Verb) $(ECHO) 's/@LLVM_CPPFLAGS@/$(subst /,\/,$(SUB_CPPFLAGS))/' \
  61           > temp.sed
  62         $(Verb) $(ECHO) 's/@LLVM_CFLAGS@/$(subst /,\/,$(SUB_CFLAGS))/' \
  63           >> temp.sed
  64         $(Verb) $(ECHO) 's/@LLVM_CXXFLAGS@/$(subst /,\/,$(SUB_CXXFLAGS))/' \
  65           >> temp.sed
  66         $(Verb) $(ECHO) 's/@LLVM_LDFLAGS@/$(subst /,\/,$(SUB_LDFLAGS))/' \
  67           >> temp.sed
  68         $(Verb) $(ECHO) 's/@LLVM_BUILDMODE@/$(subst /,\/,$(BuildMode))/' \
  69           >> temp.sed
  70         $(Verb) $(SED) -f temp.sed < $< > $@
  71         $(Verb) $(RM) temp.sed
  72         $(Verb) cat $(FinalLibDeps) >> $@
  73         $(Verb) chmod +x $@
  74
  75 else
  76 # We don't have perl, just generate a dummy llvm-config
  77 $(ToolDir)/llvm-config:
  78         $(Echo) "Building place holder llvm-config script."
  79         $(Verb) $(ECHO) 'echo llvm-config: Perl not found so llvm-config could not be generated' >> $@
  80         $(Verb) chmod +x $@
  81
  82 endif
  83 # Hook into the standard Makefile rules.
  84 all-local:: $(ToolDir)/llvm-config
  85 clean-local::
  86         $(Verb) $(RM) -f $(ToolDir)/llvm-config llvm-config.in $(FinalLibDeps) \
  87           $(LibDeps) GenLibDeps.out
  88 install-local:: all-local
  89         $(Echo) Installing llvm-config
  90         $(Verb) $(MKDIR) $(PROJ_bindir)
  91         $(Verb) $(ScriptInstall) $(ToolDir)/llvm-config $(PROJ_bindir)
  92