Makefile revision f72538ee2efabd6e9934ee55dc4c009c29281c56 
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
10LEVEL = ../..
11
12EXTRA_DIST = LibDeps.txt FinalLibDeps.txt llvm-config.in.in find-cycles.pl
13REQUIRES_EH := 1
14
15include $(LEVEL)/Makefile.common
16
17# If we don't have Perl, we can't generate the library dependencies upon which 
18# llvm-config depends. Therefore, only if we detect perl will we do anything
19# useful.
20ifeq ($(HAVE_PERL),1)
21
22# Combine preprocessor flags (except for -I) and CXX flags.
23SUB_CFLAGS = ${CPP.BaseFlags} ${C.Flags}
24SUB_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.
29SUB_LDFLAGS = 
30
31FinalLibDeps = $(PROJ_OBJ_DIR)/FinalLibDeps.txt
32LibDeps      = $(PROJ_OBJ_DIR)/LibDeps.txt
33LibDepsTemp  = $(PROJ_OBJ_DIR)/LibDeps.txt.tmp
34GenLibDeps   = $(PROJ_SRC_ROOT)/utils/GenLibDeps.pl
35
36$(LibDepsTemp): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
37	$(Echo) "Regenerating LibDeps.txt.tmp"
38	$(Verb) $(GenLibDeps) -flat $(LibDir) $(NM_PATH) > $(LibDepsTemp)
39
40$(LibDeps): $(LibDepsTemp)
41	$(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
42	  $(EchoCmd) Updated LibDeps.txt because dependencies changes )
43
44# Find all the cyclic dependencies between various LLVM libraries, so we
45# don't have to process them at runtime.
46$(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.
51ConfigInIn = $(PROJ_SRC_DIR)/llvm-config.in.in
52llvm-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 $@
67
68else
69# We don't have perl, just generate a dummy llvm-config
70$(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
75endif
76# Hook into the standard Makefile rules.
77all-local:: $(ToolDir)/llvm-config
78clean-local::
79	$(Verb) $(RM) -f $(ToolDir)/llvm-config llvm-config.in $(FinalLibDeps) \
80	  $(LibDeps) GenLibDeps.out
81install-local:: all-local
82	$(Echo) Installing llvm-config
83	$(Verb) $(MKDIR) $(PROJ_bindir)
84	$(Verb) $(ScriptInstall) $(ToolDir)/llvm-config $(PROJ_bindir)
85
86