Hi,
cross-compiling LLVM on the ppc64 architecture fails with:
make[1]: *** No rule to make target
`../build/llvm-r204075/BuildTools/Debug+Asserts/bin/llvm-tblgen', needed
by `../build/llvm-r204075/lib/IR/Debug+Asserts/Intrinsics.gen.tmp'. Stop.
make[1]: *** Waiting for unfinished jobs....
this fails for me for
r204075 (today) and
r203443.
Configuration details:
$LLVMPATH/configure \
--prefix=$INSTALL/llvm-$TYPE \
--host=powerpc64-bgq-linux \
--build=powerpc64-unknown-linux-gnu \
--enable-shared \
--disable-terminfo \
--disable-zlib \
--enable-targets=powerpc \
CXX=${CXX} \
CXXFLAGS="${CXXFLAGS}" \
CC=${CC} \
CFLAGS="${CFLAGS}" \
LDFLAGS="${LDFLAGS}"
with
CXXFLAGS="-O3 -fPIC"
LDFLAGS="-shared -ldl"
CC=bgclang
CXX=bgclang++11
Anyone any idea how to track this down?
Thanks,
Frank
The weird thing is that I get different behavior depending on whether executing make or make -j 10 install after configuring. The former results in checking whether GCC is new enough... no configure: error: The selected GCC C++ compiler is not new enough to build LLVM. Please upgrade to GCC 4.7. You may pass --disable-compiler-version-checks to configure to bypass these sanity checks. the latter in the result described in the first email. That's odd. I never had problems with a parallel build. Ideas? Frank On 03/17/2014 03:55 PM, Frank Winter wrote:> Hi, > > cross-compiling LLVM on the ppc64 architecture fails with: > > make[1]: *** No rule to make target > `../build/llvm-r204075/BuildTools/Debug+Asserts/bin/llvm-tblgen', > needed by > `../build/llvm-r204075/lib/IR/Debug+Asserts/Intrinsics.gen.tmp'. Stop. > make[1]: *** Waiting for unfinished jobs.... > > this fails for me for > r204075 (today) and > r203443. > > Configuration details: > > $LLVMPATH/configure \ > --prefix=$INSTALL/llvm-$TYPE \ > --host=powerpc64-bgq-linux \ > --build=powerpc64-unknown-linux-gnu \ > --enable-shared \ > --disable-terminfo \ > --disable-zlib \ > --enable-targets=powerpc \ > CXX=${CXX} \ > CXXFLAGS="${CXXFLAGS}" \ > CC=${CC} \ > CFLAGS="${CFLAGS}" \ > LDFLAGS="${LDFLAGS}" > > with > > CXXFLAGS="-O3 -fPIC" > LDFLAGS="-shared -ldl" > CC=bgclang > CXX=bgclang++11 > > > Anyone any idea how to track this down? > > Thanks, > Frank > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> That's odd. I never had problems with a parallel build. > > Ideas?I've seen similar failures, though oddly with CMake. What I decided was happening is that the Makefile knows it has to build llvm-tblgen, but not quite what depends on it for some reason. In the -j10 case, it's encounters something that needs llvm-tblgen before it's actually built it. In the -j1 case it tries to configure & build llvm-tblgen, but (presumably) needs a different, native, compiler and discovers your host's one is too old. So to solve the -j1 build, you probably do want to upgrade your native compiler, unless it's being misdetected. For the parallel issue, my build-script knowledge was too small to fix it back then. I ended up running at -j1 mostly, though I've since had success with the CMake variables LLVM_TABLEGEN and CLANG_TABLEGEN, by pointing them at a (recent!) native TableGen I've had lying around. Not foolproof, but often enough for a quick build/test. Cheers. Tim.