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| author | kennytm <kennytm@gmail.com> | 2018-02-14 16:14:29 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-02-14 16:14:29 +0800 |
| commit | 2be44ceaa207f6a29f2c10399b524e8700ec173d (patch) | |
| tree | e18a53329d14e88330f13212fc0f4b6ee082c247 /src/rustllvm/RustWrapper.cpp | |
| parent | c89976e55621a43b573576c3ed0083842e4049d5 (diff) | |
| parent | 3c01dea03e1b4ffbcb665a68bcf228c02497ecdc (diff) | |
| download | rust-2be44ceaa207f6a29f2c10399b524e8700ec173d.tar.gz rust-2be44ceaa207f6a29f2c10399b524e8700ec173d.zip | |
Rollup merge of #47846 - roblabla:bugfix-ocaml, r=kennytm
Work around LLVM OCAML binding installation failure Hello, I have OCaml installed on my machine, and compiling rust systematically fails when LLVM attempts installing the OCaml bindings in `/usr/lib/ocaml`, which is write-protected. Here are the logs: https://gist.github.com/roblabla/3f147914c5df627c9d97ab311ba133ad Some digging around the issue reveals: - The code that finds if OCaml is installed, and sets the bindings to be compiled/installed: https://github.com/llvm-mirror/llvm/blob/b24a45d2e9f4fc10c3f9e16172104910b38637f2/cmake/config-ix.cmake#L612 - https://github.com/llvm-mirror/llvm/blob/b24a45d2e9f4fc10c3f9e16172104910b38637f2/bindings/ocaml/llvm/CMakeLists.txt Some code that does the installation. The problem seems to be that `LLVM_OCAML_INSTALL_PATH` is set to `OCAML_STDLIB_PATH` by default, which is in `/usr/lib/ocaml`, instead of the prefix. This PR "fixes" the issue by setting `LLVM_OCAML_INSTALL_PATH` to `usr/lib/ocaml`. I haven't found a way to make LLVM not build OCaml, which would probably be a superior fix.
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