Retrieved from nixpkgs.

This causes pahole to use '-j1' (single thread) when SOURCE_DATE_EPOCH
is set, to ensure it produces reproducible output.

diff --git a/pahole.c b/pahole.c
index 6fc4ed6..a4e306f 100644
--- a/pahole.c
+++ b/pahole.c
@@ -1687,8 +1687,11 @@ static error_t pahole__options_parser(int key, char *arg,
 		  class_name = arg;			break;
 	case 'j':
 #if _ELFUTILS_PREREQ(0, 178)
-		  conf_load.nr_jobs = arg ? atoi(arg) :
-					    sysconf(_SC_NPROCESSORS_ONLN) * 1.1;
+		  // Force single thread if reproducibility is desirable.
+		  if (!getenv("SOURCE_DATE_EPOCH")) {
+			  conf_load.nr_jobs = arg ? atoi(arg) :
+						    sysconf(_SC_NPROCESSORS_ONLN) * 1.1;
+		  }
 #else
 		  fputs("pahole: Multithreading requires elfutils >= 0.178. Continuing with a single thread...\n", stderr);
 #endif
/select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
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<div class='path'>path: <a href='/guix/log/?id=fc9a93cbf9d512e29cd23db93c3abe516ecf5f98'>root</a>/<a href='/guix/log/tests?id=fc9a93cbf9d512e29cd23db93c3abe516ecf5f98'>tests</a>/<a href='/guix/log/tests/packages.scm?id=fc9a93cbf9d512e29cd23db93c3abe516ecf5f98'>packages.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/tests/packages.scm?id=fc9a93cbf9d512e29cd23db93c3abe516ecf5f98&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-04-05 22:45:41 +0200'>2017-04-05</span></td><td><a href='/guix/commit/tests/packages.scm?id=f37f2b83fa95c1fe2bf01c4b8072cfc23d4c67ec'>packages: Add 'package-mapping' and base 'package-input-rewriting' on it.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/packages.scm (package-mapping): New procedure.
(package-input-rewriting): Rewrite in terms of 'package-mapping'.
* tests/packages.scm ("package-mapping"): New test.
* doc/guix.texi (Defining Packages): Document it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-04-04 00:10:00 +0200'>2017-04-04</span></td><td><a href='/guix/commit/tests/packages.scm?id=76c486196f299716be33df86d06b3ce2b79dd77f'>packages: Catch invalid input errors for structs.</a><span class='msg-avail'>...<span class='msg-tooltip'>Reported by Thomas Sigurdsen &lt;thomas.sigurdsen@gmail.com&gt;
at &lt;https://lists.gnu.org/archive/html/help-guix/2017-04/msg00007.html&gt;.

* guix/packages.scm (expand-input): Add 'guard' form around call to
'package-source-derivation'.
* tests/packages.scm (dummy): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-02-20 12:58:07 +0200'>2017-02-20</span></td><td><a href='/guix/commit/tests/packages.scm?id=3b88f3767d9f3ad2cc64173525cd53d429bfe7e7'>gnu: Add bootstrap-binaries for 'aarch64-linux'.</a><span class='msg-avail'>...<span class='msg-tooltip'>These bootstrap-binaries were built against commit
8f8f250bdca917b3ce38aa0902f01b19081859a4.

* gnu/packages/bootstrap/aarch64-linux/bash,
gnu/packages/bootstrap/aarch64-linux/mkdir,
gnu/packages/bootstrap/aarch64-linux/xz,
gnu/packages/bootstrap/aarch64-linux/tar: New files.

* gnu/local.mk (bootstrap_aarch64_linuxdir)
(dist_bootstrap_aarch64_linux_DATA)
(nodist_bootstrap_aarch64_linux_DATA): New variables.
(DISTCLEANFILES): Add $(nodist_bootstrap_aarch64_linux_DATA).
(gnu/packages/bootstrap/aarch64-linux/guile-2.0.14.tar.xz): New target.
* build-aux/download.scm (filename-&gt;uri): Add aarch64-linux entry.
* gnu/packages/bootstrap.scm (raw-build): Use guile-2.0.14.tar.xz on
aarch64-linux.
(glibc-dynamic-linker, %bootstrap-coreutils&amp;co, %boostrap-binutils)
(%bootstrap-glibc, %bootstrap-gcc): Add aarch64-linux cases.
* m4/guix.m4 (GUIX_SYSTEM_TYPE): Add aarch64 case.
(GUIX_ASSERT_SUPPORTED_SYSTEM): Add aarch64-linux to supported list.
* doc/guix.texi (GNU Distribution): Add aarch64-linux to the list of
supported systems.
* tests/packages.scm (package-search-derivation, snippet): Add aarch64
case.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2017-01-23 22:23:41 +0100'>2017-01-23</span></td><td><a href='/guix/commit/tests/packages.scm?id=fcd75bdbfa99d14363b905afbf914eec20e69df8'>search-paths: Allow specs with #f as their separator.</a><span class='msg-avail'>...<span class='msg-tooltip'>This adds support for single-entry search paths.
Fixes &lt;http://bugs.gnu.org/25422&gt;.
Reported by Leo Famulari &lt;leo@famulari.name&gt;.

* guix/search-paths.scm (&lt;search-path-specification&gt;)[separator]:
Document as string or #f.
(evaluate-search-paths): Add case for SEPARATOR as #f.
(environment-variable-definition): Handle SEPARATOR being #f.
* guix/build/utils.scm (list-&gt;search-path-as-string): Add case for
SEPARATOR as #f.
(search-path-as-string-&gt;list): Likewise.
* guix/build/profiles.scm (abstract-profile): Likewise.
* tests/search-paths.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
* tests/packages.scm ("--search-paths with single-item search path"):
New test.
* gnu/packages/version-control.scm (git)[native-search-paths](separator):
New field.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-12-17 14:46:42 +0100'>2016-12-17</span></td><td><a href='/guix/commit/tests/packages.scm?id=a6562c7e206650ff3d8e6764e60c59a768414bf7'>profiles: Remove dependency on 'glibc-utf8-locales' for tests.</a><span class='msg-avail'>...<span class='msg-tooltip'>Commit 1af0860e8be81c01ad405c1226d6bc4516e62863 added a mandatory
dependency on 'glibc-utf8-locales', which entails long rebuilds for
tests.

* guix/profiles.scm (profile-derivation): Add #:locales? parameter.
Add 'set-utf8-locale' variable.  Use it when LOCALES? is true.
(link-to-empty-profile): Pass #:locales? #f.
* guix/scripts/environment.scm (inputs-&gt;profile-derivation): Pass
  #:locales?.
* guix/scripts/package.scm (build-and-use-profile): Likewise.
* tests/packages.scm ("--search-paths with pattern"): Pass #:locales? #f.
* tests/profiles.scm ("profile-derivation")
("profile-derivation, inputs", "profile-manifest, search-paths")
("etc/profile", "etc/profile when etc/ already exists"):
("etc/profile when etc/ is a symlink"): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>