LLVM Install fails when building with DESTDIR=

[samoconnor]

I have a Dockerfile that sets DESTDIR=/var/task to build Julia v0.6.0 for AWS Lambda.

It seems that when cmake installs llvm into a staging area, it prefixes the install path with DESTDIR even though CMAKE_INSTALL_PREFIX is a fully qualified path. The result is that llvm ends up in a different directory to the one that the staging .tgz creation rule expects.

e.g. llvm-config is staged to:

/var/task/var/src/julia/usr-staging/llvm-3.9.1/build_Release/var/src/julia/usr/tools/llvm-config

It should be:

/var/src/julia/usr-staging/llvm-3.9.1/build_Release/var/src/julia/usr/tools/llvm-config

I've worked around the problem with this patch to set DESTDIR="" when running cmake_install.cmake.

[o01eg]

It causes error on gentoo https://bugs.gentoo.org/675326

[vtjnash]

Apparently patched downstream only now?? If only Julia was an open-source project that could somehow accept patches....