llvm-config: Replace with C++ version (was llvm-config-2).

   - Another reapply of r144300, with hopefully one last fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145623 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 64 deletions

diff --git a/tools/llvm-config/Makefile b/tools/llvm-config/Makefile
index 184919ea97..a7a2a63f99 100644
--- a/tools/llvm-config/Makefile
+++ b/tools/llvm-config/Makefile
@@ -1,5 +1,5 @@
-##===- tools/llvm-config/Makefile --------------------------*- Makefile -*-===##
-#
+##===- tools/llvm-config/Makefile---------------------------*- Makefile -*-===##
+# 
 #                     The LLVM Compiler Infrastructure
 #
 # This file is distributed under the University of Illinois Open Source
@@ -7,57 +7,42 @@
 # 
 ##===----------------------------------------------------------------------===##
 
-LEVEL = ../..
+LEVEL := ../..
+TOOLNAME := llvm-config
+USEDLIBS := LLVMSupport.a
 
-EXTRA_DIST = LibDeps.txt FinalLibDeps.txt llvm-config.in.in find-cycles.pl
+# We generate sources in the build directory, make sure it is in the include
+# paths.
+INCLUDE_BUILD_DIR := 1
 
-include $(LEVEL)/Makefile.common
+# This tool has no plugins, optimize startup time.
+TOOL_NO_EXPORTS := 1
 
-# If we don't have Perl, we can't generate the library dependencies upon which 
-# llvm-config depends. Therefore, only if we detect perl will we do anything
-# useful.
-ifeq ($(HAVE_PERL),1)
+# Note that we have to use lazy expansion here.
+BUILDVARIABLES_SRCPATH = $(PROJ_SRC_ROOT)/tools/$(TOOLNAME)/BuildVariables.inc.in
+BUILDVARIABLES_OBJPATH = $(ObjDir)/BuildVariables.inc
+BUILT_SOURCES = $(BUILDVARIABLES_OBJPATH)
+
+include $(LEVEL)/Makefile.common
 
 # Combine preprocessor flags (except for -I) and CXX flags.
-SUB_CPPFLAGS = ${CPP.BaseFlags}
-SUB_CFLAGS   = ${CPP.BaseFlags} ${C.Flags}
-SUB_CXXFLAGS = ${CPP.BaseFlags} ${CXX.Flags}
+SUB_CPPFLAGS := ${CPP.BaseFlags}
+SUB_CFLAGS   := ${CPP.BaseFlags} ${C.Flags}
+SUB_CXXFLAGS := ${CPP.BaseFlags} ${CXX.Flags}
 
 # This is blank for now.  We need to be careful about adding stuff here:
 # LDFLAGS tend not to be portable, and we don't currently require the
 # user to use libtool when linking against LLVM.
-SUB_LDFLAGS = 
-
-FinalLibDeps = $(PROJ_OBJ_DIR)/FinalLibDeps.txt
-LibDeps      = $(PROJ_OBJ_DIR)/LibDeps.txt
-LibDepsTemp  = $(PROJ_OBJ_DIR)/LibDeps.txt.tmp
-GenLibDeps   = $(PROJ_SRC_ROOT)/utils/GenLibDeps.pl
-
-$(LibDepsTemp): $(GenLibDeps) $(LibDir) $(wildcard $(LibDir)/*.a $(LibDir)/*.o)
-	$(Echo) "Regenerating LibDeps.txt.tmp"
-	$(Verb) $(PERL) $(GenLibDeps) -flat $(LibDir) "$(NM_PATH)" > $(LibDepsTemp)
-
-$(LibDeps): $(LibDepsTemp)
-	$(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
-	  $(EchoCmd) Updated LibDeps.txt because dependencies changed )
-
-# Find all the cyclic dependencies between various LLVM libraries, so we
-# don't have to process them at runtime.
-$(FinalLibDeps): find-cycles.pl $(LibDeps)
-	$(Echo) "Checking for cyclic dependencies between LLVM libraries."
-	$(Verb) $(PERL) $< < $(LibDeps) > $@ || rm -f $@
+SUB_LDFLAGS :=
 
-# Rerun our configure substitutions as needed.
-ConfigInIn = $(PROJ_SRC_DIR)/llvm-config.in.in
-llvm-config.in: $(ConfigInIn) $(ConfigStatusScript)
-	$(Verb) cd $(PROJ_OBJ_ROOT) ; \
-		$(ConfigStatusScript) tools/llvm-config/llvm-config.in
-
-# Build our final script.
-$(ToolDir)/llvm-config: llvm-config.in $(FinalLibDeps)
-	$(Echo) "Building llvm-config script."
-	$(Verb) $(ECHO) 's/@LLVM_CPPFLAGS@/$(subst /,\/,$(SUB_CPPFLAGS))/' \
+$(ObjDir)/BuildVariables.inc: $(BUILDVARIABLES_SRCPATH) Makefile $(ObjDir)/.dir
+	$(Echo) "Building llvm-config BuildVariables.inc file."
+	$(Verb) $(ECHO) 's/@LLVM_SRC_ROOT@/$(subst /,\/,$(LLVM_SRC_ROOT))/' \
 	  > temp.sed
+	$(Verb) $(ECHO) 's/@LLVM_OBJ_ROOT@/$(subst /,\/,$(LLVM_OBJ_ROOT))/' \
+	  >> temp.sed
+	$(Verb) $(ECHO) 's/@LLVM_CPPFLAGS@/$(subst /,\/,$(SUB_CPPFLAGS))/' \
+	  >> temp.sed
 	$(Verb) $(ECHO) 's/@LLVM_CFLAGS@/$(subst /,\/,$(SUB_CFLAGS))/' \
 	  >> temp.sed
 	$(Verb) $(ECHO) 's/@LLVM_CXXFLAGS@/$(subst /,\/,$(SUB_CXXFLAGS))/' \
@@ -66,28 +51,7 @@ $(ToolDir)/llvm-config: llvm-config.in $(FinalLibDeps)
 	  >> temp.sed
 	$(Verb) $(ECHO) 's/@LLVM_BUILDMODE@/$(subst /,\/,$(BuildMode))/' \
 	  >> temp.sed
-	$(Verb) $(ECHO) 's/@LLVM_OBJ_SUFFIX@/$(subst /,\/,/$(BuildMode))/' \
+	$(Verb) $(ECHO) 's/@LLVM_SYSTEM_LIBS@/$(subst /,\/,$(LIBS))/' \
 	  >> temp.sed
 	$(Verb) $(SED) -f temp.sed < $< > $@
 	$(Verb) $(RM) temp.sed
-	$(Verb) cat $(FinalLibDeps) >> $@
-	$(Verb) chmod +x $@
-
-else
-# We don't have perl, just generate a dummy llvm-config
-$(ToolDir)/llvm-config:
-	$(Echo) "Building place holder llvm-config script."
-	$(Verb) $(ECHO) 'echo llvm-config: Perl not found so llvm-config could not be generated' >> $@
-	$(Verb) chmod +x $@
-
-endif
-# Hook into the standard Makefile rules.
-all-local:: $(ToolDir)/llvm-config
-clean-local::
-	$(Verb) $(RM) -f $(ToolDir)/llvm-config llvm-config.in $(FinalLibDeps) \
-	  $(LibDeps) GenLibDeps.out
-install-local:: all-local
-	$(Echo) Installing llvm-config
-	$(Verb) $(MKDIR) $(DESTDIR)$(PROJ_bindir)
-	$(Verb) $(ScriptInstall) $(ToolDir)/llvm-config $(DESTDIR)$(PROJ_bindir)
-