Hello,
The attached patch makes it possible to compile LLVM under Mingw/Cygwin
(that is, with "gcc -mno-cygwin" under Cygwin). The only problem which I
could not address with configure flags is that the tblgen tool expect
Windows paths, whereas the build system uses Cygwin paths. The patch
introduce a Gnu Make function SYSPATH which performs the translation if
needed.
Ideally, the SYSPATH variable in Makefile.config should be set by the
configure script when given a special option (the same option could also
set the other needed options -- see below). As I didn't want to play
with autoconf, the current solution requires an explicit argument to be
passed to make for the compilation.
With the patch, I was able to compile with the following commands:
./configure --build=i686-pc-mingw32 CC="gcc -mno-cygwin" CXX="g++
-mno-cygwin" ac_cv_search_dlopen=no ac_cv_lib_dl_dlopen=no
make USE_CYGPATH=1
Alain
Index: Makefile.config.in
===================================================================
--- Makefile.config.in (revision 45701)
+++ Makefile.config.in (working copy)
@@ -265,3 +265,10 @@
ALL_BINDINGS := @ALL_BINDINGS@
OCAML_LIBDIR := @OCAML_LIBDIR@
+USE_CYGPATH := false
+
+ifeq ($(USE_CYGPATH), true)
+ SYSPATH := $(shell echo $(1) | cygpath -m -f -)
+else
+ SYSPATH := $(1)
+endif
Index: lib/VMCore/Makefile
===================================================================
--- lib/VMCore/Makefile (revision 45701)
+++ lib/VMCore/Makefile (working copy)
@@ -21,7 +21,7 @@
$(ObjDir)/Intrinsics.gen.tmp: $(ObjDir)/.dir $(INTRINSICTDS) $(TBLGEN)
$(Echo) Building Intrinsics.gen.tmp from Intrinsics.td
- $(Verb) $(TableGen) $(INTRINSICTD) -o $@ -gen-intrinsic
+ $(Verb) $(TableGen) $(call SYSPATH, $(INTRINSICTD)) -o $(call SYSPATH,
$@) -gen-intrinsic
$(GENFILE): $(ObjDir)/Intrinsics.gen.tmp
$(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
Index: Makefile.rules
===================================================================
--- Makefile.rules (revision 45701)
+++ Makefile.rules (working copy)
@@ -483,8 +483,9 @@
ProgInstall = $(INSTALL) $(Install.StripFlag) -m 0755
ScriptInstall = $(INSTALL) -m 0755
DataInstall = $(INSTALL) -m 0644
-TableGen = $(TBLGEN) -I $(PROJ_SRC_DIR) -I$(PROJ_SRC_ROOT)/include \
- -I $(PROJ_SRC_ROOT)/lib/Target
+TableGen = $(TBLGEN) -I $(call SYSPATH, $(PROJ_SRC_DIR)) \
+ -I $(call SYSPATH, $(PROJ_SRC_ROOT)/include) \
+ -I $(call SYSPATH, $(PROJ_SRC_ROOT)/lib/Target)
Archive = $(AR) $(AR.Flags)
LArchive = $(LLVMToolDir)/llvm-ar rcsf
ifdef RANLIB
@@ -1248,57 +1249,57 @@
$(TARGET:%=$(ObjDir)/%GenRegisterNames.inc.tmp): \
$(ObjDir)/%GenRegisterNames.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) register names with tblgen"
- $(Verb) $(TableGen) -gen-register-enums -o $@ $<
+ $(Verb) $(TableGen) -gen-register-enums -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenRegisterInfo.h.inc.tmp): \
$(ObjDir)/%GenRegisterInfo.h.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) register information header with tblgen"
- $(Verb) $(TableGen) -gen-register-desc-header -o $@ $<
+ $(Verb) $(TableGen) -gen-register-desc-header -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenRegisterInfo.inc.tmp): \
$(ObjDir)/%GenRegisterInfo.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) register info implementation with tblgen"
- $(Verb) $(TableGen) -gen-register-desc -o $@ $<
+ $(Verb) $(TableGen) -gen-register-desc -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenInstrNames.inc.tmp): \
$(ObjDir)/%GenInstrNames.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) instruction names with tblgen"
- $(Verb) $(TableGen) -gen-instr-enums -o $@ $<
+ $(Verb) $(TableGen) -gen-instr-enums -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenInstrInfo.inc.tmp): \
$(ObjDir)/%GenInstrInfo.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) instruction information with tblgen"
- $(Verb) $(TableGen) -gen-instr-desc -o $@ $<
+ $(Verb) $(TableGen) -gen-instr-desc -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenAsmWriter.inc.tmp): \
$(ObjDir)/%GenAsmWriter.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) assembly writer with tblgen"
- $(Verb) $(TableGen) -gen-asm-writer -o $@ $<
+ $(Verb) $(TableGen) -gen-asm-writer -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenAsmWriter1.inc.tmp): \
$(ObjDir)/%GenAsmWriter1.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) assembly writer #1 with tblgen"
- $(Verb) $(TableGen) -gen-asm-writer -asmwriternum=1 -o $@ $<
+ $(Verb) $(TableGen) -gen-asm-writer -asmwriternum=1 -o $(call SYSPATH,
$@) $<
$(TARGET:%=$(ObjDir)/%GenCodeEmitter.inc.tmp): \
$(ObjDir)/%GenCodeEmitter.inc.tmp: %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) code emitter with tblgen"
- $(Verb) $(TableGen) -gen-emitter -o $@ $<
+ $(Verb) $(TableGen) -gen-emitter -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenDAGISel.inc.tmp): \
$(ObjDir)/%GenDAGISel.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) instruction selector implementation with tblgen"
- $(Verb) $(TableGen) -gen-dag-isel -o $@ $<
+ $(Verb) $(TableGen) -gen-dag-isel -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenSubtarget.inc.tmp): \
$(ObjDir)/%GenSubtarget.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) subtarget information with tblgen"
- $(Verb) $(TableGen) -gen-subtarget -o $@ $<
+ $(Verb) $(TableGen) -gen-subtarget -o $(call SYSPATH, $@) $<
$(TARGET:%=$(ObjDir)/%GenCallingConv.inc.tmp): \
$(ObjDir)/%GenCallingConv.inc.tmp : %.td $(ObjDir)/.dir
$(Echo) "Building $(<F) calling convention information with tblgen"
- $(Verb) $(TableGen) -gen-callingconv -o $@ $<
+ $(Verb) $(TableGen) -gen-callingconv -o $(call SYSPATH, $@) $<
clean-local::
-$(Verb) $(RM) -f $(INCFiles)
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