Libraries (such as 'libtorch_cpu.so') and executables (such as 'torch_shm_manager')
get installed, quite surprisingly, to 'lib/python3.8/site-packages/{bin,lib}'.
Make sure RUNPATH matches that.

diff --git a/cmake/Dependencies.cmake b/cmake/Dependencies.cmake
index f1f2eb7..cb5caea 100644
--- a/cmake/Dependencies.cmake
+++ b/cmake/Dependencies.cmake
@@ -4,7 +4,7 @@ if(APPLE)
   set(CMAKE_MACOSX_RPATH ON)
   set(_rpath_portable_origin "@loader_path")
 else()
-  set(_rpath_portable_origin $ORIGIN)
+  set(_rpath_portable_origin $ORIGIN/../lib)
 endif(APPLE)
 # Use separate rpaths during build and install phases
 set(CMAKE_SKIP_BUILD_RPATH  FALSE)
diff --git a/functorch/CMakeLists.txt b/functorch/CMakeLists.txt
index bdfa4bf..2a75e38 100644
--- a/functorch/CMakeLists.txt
+++ b/functorch/CMakeLists.txt
@@ -26,7 +26,7 @@ target_link_libraries(${PROJECT_NAME} PRIVATE pybind::pybind11)
 
 set_target_properties(${PROJECT_NAME} PROPERTIES LIBRARY_OUTPUT_DIRECTORY
       ${CMAKE_BINARY_DIR}/functorch)
-set_target_properties(${PROJECT_NAME} PROPERTIES INSTALL_RPATH "${_rpath_portable_origin}/../torch/lib")
+set_target_properties(${PROJECT_NAME} PROPERTIES INSTALL_RPATH "$ORIGIN/../torch/lib")
 
 # Copy-pasted prefix/suffix logic for Python extensions from
 # https://github.com/pytorch/pytorch/blob/33bb8ae350611760139457b85842b1d7edf9aa11/caffe2/CMakeLists.txt#L1975
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<div class='path'>path: <a href='/guix/log/?id=8851c55b538f62534f16c1dd1e22657ef2f3c916'>root</a>/<a href='/guix/log/nix?id=8851c55b538f62534f16c1dd1e22657ef2f3c916'>nix</a>/<a href='/guix/log/nix/libutil?id=8851c55b538f62534f16c1dd1e22657ef2f3c916'>libutil</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/nix/libutil?id=8851c55b538f62534f16c1dd1e22657ef2f3c916&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2024-05-13 16:31:34 +0200'>2024-05-13</span></td><td><a href='/guix/commit/nix/libutil?id=7757fdd491862fa5c33f1f894503346b89898a01'>daemon: Loop over ‘copy_file_range’ upon short writes.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/70877&gt;.

* nix/libutil/util.cc (copyFile): Loop over ‘copy_file_range’ instead of
throwing upon short write.

Reported-by: Ricardo Wurmus &lt;rekado@elephly.net&gt;
Change-Id: Id7b8a65ea59006c2d91bc23732309a68665b9ca0
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2024-03-12 14:07:28 +0100'>2024-03-12</span></td><td><a href='/guix/commit/nix/libutil?id=ff1251de0bc327ec478fc66a562430fbf35aef42'>daemon: Address shortcoming in previous security fix for CVE-2024-27297.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to 8f4ffb3fae133bb21d7991e97c2f19a7108b1143.

Commit 8f4ffb3fae133bb21d7991e97c2f19a7108b1143 fell short in two
ways: (1) it didn’t have any effet for fixed-output derivations
performed in a chroot, which is the case for all of them except those
using “builtin:download” and “builtin:git-download”, and (2) it did not
preserve ownership when copying, leading to “suspicious ownership or
permission […] rejecting this build output” errors.

* nix/libstore/build.cc (DerivationGoal::buildDone): Account for
‘chrootRootDir’ when copying ‘drv.outputs’.
* nix/libutil/util.cc (copyFileRecursively): Add ‘fchown’ and ‘fchownat’
calls to preserve file ownership; this is necessary for chrooted
fixed-output derivation builds.
* nix/libutil/util.hh: Update comment.

Change-Id: Ib59f040e98fed59d1af81d724b874b592cbef156
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2024-03-11 22:12:34 +0100'>2024-03-11</span></td><td><a href='/guix/commit/nix/libutil?id=8f4ffb3fae133bb21d7991e97c2f19a7108b1143'>daemon: Protect against FD escape when building fixed-output derivations (CVE...</a><span class='msg-avail'>...<span class='msg-tooltip'>This fixes a security issue (CVE-2024-27297) whereby a fixed-output
derivation build process could open a writable file descriptor to its
output, send it to some outside process for instance over an abstract
AF_UNIX socket, which would then allow said process to modify the file
in the store after it has been marked as “valid”.

Vulnerability discovered by puck &lt;https://github.com/puckipedia&gt;.

Nix security advisory:
https://github.com/NixOS/nix/security/advisories/GHSA-2ffj-w4mj-pg37

Nix fix:
https://github.com/NixOS/nix/commit/244f3eee0bbc7f11e9b383a15ed7368e2c4becc9

* nix/libutil/util.cc (readDirectory): Add variants that take a DIR* and
a file descriptor.  Rewrite the ‘Path’ variant accordingly.
(copyFile, copyFileRecursively): New functions.
* nix/libutil/util.hh (copyFileRecursively): New declaration.
* nix/libstore/build.cc (DerivationGoal::buildDone): When ‘fixedOutput’
is true, call ‘copyFileRecursively’ followed by ‘rename’ on each output.

Change-Id: I7952d41093eed26e123e38c14a4c1424be1ce1c4

Reported-by: Picnoir &lt;picnoir@alternativebit.fr&gt;, Théophane Hufschmitt &lt;theophane.hufschmitt@tweag.io&gt;
Change-Id: Idb5f2757f35af86b032a9851cecb19b70227bd88
</span></span></td><td>Ludovic Courtès</td></tr>