Re: [gentoo-alt] Bootstrapping failed: llvm-c/lto.h file not found

[Philip Lüscher]

Hi Michael,

the patch worked like a charm. Thank you.

Later on I had to mask net-misc/wget-1.18 and binutils-apple-7.0. Additionally I had to add "=app-arch/xar-1.6.1 **” to package.keywords.

But now my gentoo-prefix is up an running.

Thanks
Philip





> On 30 Jun 2016, at 19:23, Michael Weiser wrote:
>
> Hi Philip,
>
> On Sun, Jun 26, 2016 at 05:00:47PM +0200, Philip wrote:
>
>> I have a problem with bootstrapping on OS X 10.11.5 with Command Line Tools 7.3.1.
>> bootstrap-prefix.sh fails during the stage 2 when it tries to emerge sys-devel/binutils-apple-7.2:
>
>> clang++ -m64 -march=native -O2 -pipe -Wno-invalid-offsetof -std=c++0x -stdlib=libc++ -I/gentoo/tmp/usr/include -DNDEBUG -DSUPPORT_SNAPSHOTS -Iinclude -Iabstraction -Ild -Ild/parsers -Iother -I.  -c -o ld/ld.o ld/ld.cpp
>> clang++ -m64 -march=native -O2 -pipe -Wno-invalid-offsetof -std=c++0x -stdlib=libc++ -I/gentoo/tmp/usr/include -DNDEBUG -DSUPPORT_SNAPSHOTS -Iinclude -Iabstraction -Ild -Ild/parsers -Iother -I.  -c -o ld/passes/bitcode_bundle.o ld/passes/bitcode_bundle.cpp
>> ld/passes/bitcode_bundle.cpp:36:10: fatal error: 'llvm-c/lto.h' file not found
>> #include "llvm-c/lto.h"
>>         ^
>> 1 error generated.
>> make: *** [ld/passes/bitcode_bundle.o] Error 1
>> make: *** Waiting for unfinished jobs....
>>  * ERROR: sys-devel/binutils-apple-7.2::gentoo_prefix failed (compile phase):
>
>> Any idea what I am doing wrong?
>
> I don't think you're doing anything wrong. It's just that I didn't
> consider bootstrapping when updating the binutils-apple package. I had
> dropped support for disabling LTO support because it can't be done
> completely without serious pains.
>
> Bootstrap experts: We need to mask >=sys-devel/binutils-apple-7.0 until
> we can figure out how to allow bootstrapping binutils-apple with LTO
> support using the host Xcode or without LTO support at all.
>
> Philip: In the meantime can you try patching your prefix-bootstrap.sh
> like this:
>
> # diff -u Downloads/bootstrap-prefix.sh.orig Downloads/bootstrap-prefix.sh
> --- Downloads/bootstrap-prefix.sh.orig	2016-06-30 19:21:07.000000000 +0200
> +++ Downloads/bootstrap-prefix.sh	2016-06-30 19:22:05.000000000 +0200
> @@ -171,7 +171,7 @@
> 			compiler_stage1="sys-apps/darwin-miscutils sys-libs/csu"
> 			case "$( (unset CHOST; gcc --version 2>/dev/null) )" in
> 				*"(GCC) 4.2.1 "*|*"Apple LLVM version "*)
> -					linker=sys-devel/binutils-apple
> +					linker="<sys-devel/binutils-apple-7.0"
> 					if type -P clang > /dev/null ; then
> 						CC=clang
> 						CXX=clang++
> --
> Sorry,
> Michael
>