Help CMake find Clang's libraries.
Have it install the ICD file in the right place.

diff --git a/CMake/FindLLVM.cmake b/CMake/FindLLVM.cmake
index 5457f248..e8e8f94a 100644
--- a/CMake/FindLLVM.cmake
+++ b/CMake/FindLLVM.cmake
@@ -107,7 +107,7 @@ endif (LLVM_VERSION_NODOT VERSION_GREATER 34)
 macro(add_one_lib name)
   FIND_LIBRARY(CLANG_LIB
     NAMES ${name}
-    PATHS ${LLVM_LIBRARY_DIR} NO_DEFAULT_PATH)
+    PATHS ${CLANG_LIBRARY_DIR} NO_DEFAULT_PATH)
   set(CLANG_LIBRARIES ${CLANG_LIBRARIES} ${CLANG_LIB})
 	unset(CLANG_LIB CACHE)
 endmacro()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c11acbb2..fb99e5c8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -217,7 +217,7 @@ IF(OCLIcd_FOUND)
     "intel-beignet.icd.in"
     "${ICD_FILE_NAME}"
   )
-  install (FILES ${CMAKE_CURRENT_BINARY_DIR}/${ICD_FILE_NAME} DESTINATION /etc/OpenCL/vendors)
+  install (FILES ${CMAKE_CURRENT_BINARY_DIR}/${ICD_FILE_NAME} DESTINATION etc/OpenCL/vendors COMPONENT config)
 ELSE(OCLIcd_FOUND)
   MESSAGE(STATUS "Looking for OCL ICD header file - not found")
   MESSAGE(FATAL_ERROR "OCL ICD loader miss. If you really want to disable OCL ICD support, please run cmake with option -DOCLICD_COMPAT=0.")
--
2.14.3

substitutes.scm'>log</a><a href='/guix/tree/gnu/installer/substitutes.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>tree</a><a href='/guix/commit/gnu/installer/substitutes.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>commit</a><a href='/guix/diff/gnu/installer/substitutes.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/installer/substitutes.scm'>
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<div class='path'>path: <a href='/guix/log/?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>root</a>/<a href='/guix/log/gnu?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>gnu</a>/<a href='/guix/log/gnu/installer?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>installer</a>/<a href='/guix/log/gnu/installer/substitutes.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>substitutes.scm</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/gnu/installer/substitutes.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-12-11 21:37:07 +0100'>2020-12-11</span></td><td><a href='/guix/commit/gnu/installer/substitutes.scm?id=8361817bf693742757b096468198626f297bb09e'>install: Discover local substitute servers.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/substitutes.scm: New file.
* gnu/installer/newt/substitutes.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add them.
* po/guix/POTFILES.in: Add gnu/installer/newt/substitutes.scm.
* gnu/installer/proxy.scm (with-silent-shepherd): Move to ...
* gnu/installer/utils.scm: ... here.
* gnu/installer/record.scm (&lt;installer&gt;)[substitutes-page]: New field.
* gnu/installer/newt.scm (substitutes-page): New procedure,
(newt-installer): register it.
* gnu/installer.scm (installer-steps): Add "substitutes-page" step.
* gnu/system/install.scm (%installation-services): Add avahi-service-type and
enable substitute server discover in guix-service-type.
[&lt;name-service-switch&gt;]: Set it to %mdns-host-lookup-nss.
</span></span></td><td>Mathieu Othacehe</td></tr>