gnu: cpuinfo: Update to commit aa4b216.

* gnu/packages/parallel.scm (cpuinfo): Update to commit aa4b216.
[arguments]: Set the "-DUSE_SYSTEM_LIBS=ON" configure flag instead of using a
patch.
[supported-systems]: New field.
* gnu/packages/patches/cpuinfo-system-libraries.patch: Remove file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -1084,7 +1084,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/coreutils-gnulib-tests.patch		\
   %D%/packages/patches/cppcheck-disable-char-signedness-test.patch	\
   %D%/packages/patches/cppdap-add-CPPDAP_USE_EXTERNAL_GTEST_PACKAGE.patch\
-  %D%/packages/patches/cpuinfo-system-libraries.patch		\
   %D%/packages/patches/cpulimit-with-glib-2.32.patch		\
   %D%/packages/patches/crawl-upgrade-saves.patch		\
   %D%/packages/patches/crc32c-unbundle-googletest.patch		\

gnu/packages/parallel.scm

@@ -489,8 +489,8 @@ (define-public pthreadpool
 (define-public cpuinfo
   ;; There's currently no tag on this repo.
   (let ((version "0.0")
-        (revision "2")
-        (commit "53298db833c5c5a1598639e9b47cc1a602bbac26"))
+        (revision "3")
+        (commit "aa4b2163b99ac9534194520f70b93eeefb0b3b4e"))
     (package
       (name "cpuinfo")
       (version (git-version version revision commit))
@@ -501,12 +501,13 @@ (define-public cpuinfo
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "01kfgxya2w32dz9bd3qm3i2d6nffw0qfyql11rxl7d3g830brj5k"))
-                (patches (search-patches "cpuinfo-system-libraries.patch"))))
+                  "12x4krkyzxngf1l2ck33lnsp8pyzf6gyjj9mp9cnka9mw3h6617m"))))
       (build-system cmake-build-system)
       (arguments
        (list
-        #:configure-flags '(list "-DBUILD_SHARED_LIBS=ON")
+        #:configure-flags
+        '(list "-DBUILD_SHARED_LIBS=ON"
+               "-DUSE_SYSTEM_LIBS=ON")
         #:phases
         '(modify-phases %standard-phases
            (add-after 'unpack 'skip-bad-test
@@ -522,6 +523,9 @@ (define-public cpuinfo
        "The cpuinfo library provides a C/C++ and a command-line interface to
 obtain information about the CPU being used: supported instruction set,
 processor name, cache information, and topology information.")
+      ;; On aarch64-linux, there is a bug reported upstream:
+      ;; https://github.com/pytorch/cpuinfo/issues/14
+      (supported-systems '("armv7-linux" "i686-linux" "x86_64-linux"))
       (license license:bsd-2))))
 
 (define-public clog

gnu/packages/patches/cpuinfo-system-libraries.patch

@@ -1,50 +0,0 @@
-This patch allows the build process to use the provided dependencies instead
-of adding their source as CMake sub-directories (in which case "make install"
-would install googletest's and googlebenchmark's libraries and headers).
-
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 57abc26..761c612 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -93,7 +93,7 @@ SET(CONFU_DEPENDENCIES_BINARY_DIR ${CMAKE_BINARY_DIR}/deps
-   CACHE PATH "Confu-style dependencies binary directory")
- 
- IF(CPUINFO_BUILD_MOCK_TESTS OR CPUINFO_BUILD_UNIT_TESTS)
--  IF(CPUINFO_SUPPORTED_PLATFORM AND NOT DEFINED GOOGLETEST_SOURCE_DIR)
-+  IF(FALSE)
-     MESSAGE(STATUS "Downloading Google Test to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest (define GOOGLETEST_SOURCE_DIR to avoid it)")
-     CONFIGURE_FILE(cmake/DownloadGoogleTest.cmake "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download/CMakeLists.txt")
-     EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
-@@ -105,7 +105,7 @@ IF(CPUINFO_BUILD_MOCK_TESTS OR CPUINFO_BUILD_UNIT_TESTS)
- ENDIF()
- 
- IF(CPUINFO_BUILD_BENCHMARKS)
--  IF(CPUINFO_SUPPORTED_PLATFORM AND NOT DEFINED GOOGLEBENCHMARK_SOURCE_DIR)
-+  IF(FALSE)
-     MESSAGE(STATUS "Downloading Google Benchmark to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googlebenchmark (define GOOGLEBENCHMARK_SOURCE_DIR to avoid it)")
-     CONFIGURE_FILE(cmake/DownloadGoogleBenchmark.cmake "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark-download/CMakeLists.txt")
-     EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
-@@ -271,14 +271,6 @@ INSTALL(TARGETS cpuinfo
- 
- # ---[ cpuinfo micro-benchmarks
- IF(CPUINFO_SUPPORTED_PLATFORM AND CPUINFO_BUILD_BENCHMARKS)
--  # ---[ Build google benchmark
--  IF(NOT TARGET benchmark)
--    SET(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "")
--    ADD_SUBDIRECTORY(
--      "${GOOGLEBENCHMARK_SOURCE_DIR}"
--      "${CONFU_DEPENDENCIES_BINARY_DIR}/googlebenchmark")
--  ENDIF()
--
-   IF(CMAKE_SYSTEM_NAME MATCHES "^(Linux|Android)$")
-     ADD_EXECUTABLE(get-current-bench bench/get-current.cc)
-     TARGET_LINK_LIBRARIES(get-current-bench cpuinfo benchmark)
-@@ -289,7 +281,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM AND CPUINFO_BUILD_BENCHMARKS)
- ENDIF()
- 
- IF(CPUINFO_SUPPORTED_PLATFORM)
--  IF(CPUINFO_BUILD_MOCK_TESTS OR CPUINFO_BUILD_UNIT_TESTS)
-+  IF(FALSE)
-     # ---[ Build google test
-     IF(NOT TARGET gtest)
-       IF(MSVC AND NOT CPUINFO_RUNTIME_TYPE STREQUAL "static")