LLDB.h is missing from liblldb-6.0-dev package

seems like CMake rule has that: https://github.com/llvm-mirror/lldb/blob/release_60/source/API/CMakeLists.txt#L164-L169, but build logs on debian suggest it ends up with 0 files https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-6.0&arch=amd64&ver=1%3A6.0-1&stamp=1520022195&raw=0.

Disregard my previous comment, that code path in CMake is for MacOS only, not Linux.

This is the official patch that went in after release_60 was shipped https://github.com/llvm-mirror/lldb/commit/8f577000b2fe2f5bf5d08e352a2f15f9421f9c82#diff-c6838f2ee3606027bb153637e8024bf5

FWIW, fedora folks have this patch https://src.fedoraproject.org/rpms/lldb/c/44958ca9dee94ad785f30ab5b379e740b0d09344

I just uploaded llvm-toolchain-6.0_6.0-1ubuntu2~ppa1 to my PPA at https://launchpad.net/~nacc/+archive/ubuntu/lp1761009 and it is building now. Please test and report back once it's available.

Thanks Nish. Confirmed that LLDB.h is present in this package and issue is resolved.

Tested on fresh Bionic:

```
sed -i.old '1s;^;deb-src http://ppa.launchpad.net/nacc/lp1761009/ubuntu bionic main\n;' /etc/apt/sources.list
sed -i.old '1s;^;deb http://ppa.launchpad.net/nacc/lp1761009/ubuntu bionic main\n;' /etc/apt/sources.list

cat <<EOT >> nacc-llvm-6.0-key.pgp.pub
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: SKS 1.1.6
Comment: Hostname: keyserver.ubuntu.com
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=eTc3
-----END PGP PUBLIC KEY BLOCK-----
EOT

apt-key add nacc-llvm-6.0-key.pgp.pub
apt update
apt install -y liblldb-6.0-dev llvm clang < /dev/null

find / -name LLDB.h
# /usr/lib/llvm-6.0/include/lldb/API/LLDB.h
ls /usr/lib/llvm-6.0/include/lldb/API
# rest of the headers are there
ls -1 /usr/lib/llvm-6.0/include/lldb/API | wc -l
# 68 (previously it was 0)

# then tried building dotnet, which wasn't building before
# (without -DENABLE_LLDBPLUGIN=0 option; libsosplugin.so in product requires LLDB.h)

apt install -y curl libcurl4-openssl-dev git cmake libunwind-dev liblttng-ust-dev libicu-dev < /dev/null

git clone https://github.com/dotnet/coreclr --single-branch -b release/2.1 --depth 1
cd coreclr
./build.sh
# succeeded
```

Uploaded to bionic-proposed.

Submitted to Debian and already picked up into their VCS.

This bug was fixed in the package llvm-toolchain-6.0 - 1:6.0-1ubuntu2

---------------
llvm-toolchain-6.0 (1:6.0-1ubuntu2) bionic; urgency=medium

  * debian/patches/install-lldb-sb-headers.patch: Install lldb's
    SB headers (pr36630). Thanks to Pavel Labath <email address hidden>.
    LP: #1761009

 -- Nishanth Aravamudan <email address hidden> Thu, 05 Apr 2018 15:05:20 -0700