Avoid multiply-defined symbols that lead to link errors such as:

  gcc -O2 -fno-strict-aliasing -fwrapv -Wall -fno-tree-vrp  -g -D_FILE_OFFSET_BITS=64 -D_REENTRANT -DCAML_NAME_SPACE  -Wl,-E -o ocamlruni prims.o libcamlruni.a -lm  -ldl -lpthread 
  ld: libcamlruni.a(backtrace.i.o):/tmp/guix-build-ocaml-4.07.1.drv-0/ocaml-4.07.1/byterun/backtrace.c:31: multiple definition of `caml_debug_info'; libcamlruni.a(backtrace_prim.i.o):/tmp/guix-build-ocaml-4.07.1.drv-0/ocaml-4.07.1/byterun/backtrace_prim.c:47: first defined here

diff --git a/asmrun/startup.c b/asmrun/startup.c
index 070f0c6..cf8a56f 100644
--- a/asmrun/startup.c
+++ b/asmrun/startup.c
@@ -44,7 +44,6 @@
 #endif
 
 extern int caml_parser_trace;
-CAMLexport header_t caml_atom_table[256];
 char * caml_code_area_start, * caml_code_area_end;
 struct ext_table caml_code_fragments_table;
 
diff --git a/byterun/backtrace.c b/byterun/backtrace.c
index 8dfe9b7..9cc9e72 100644
--- a/byterun/backtrace.c
+++ b/byterun/backtrace.c
@@ -28,7 +28,7 @@
 #include "caml/fail.h"
 
 /* The table of debug information fragments */
-struct ext_table caml_debug_info;
+static struct ext_table caml_debug_info;
 
 CAMLexport int32_t caml_backtrace_active = 0;
 CAMLexport int32_t caml_backtrace_pos = 0;
diff --git a/byterun/backtrace_prim.c b/byterun/backtrace_prim.c
index e69b256..d794f73 100644
--- a/byterun/backtrace_prim.c
+++ b/byterun/backtrace_prim.c
@@ -44,7 +44,7 @@
 #include "caml/backtrace_prim.h"
 
 /* The table of debug information fragments */
-struct ext_table caml_debug_info;
+static struct ext_table caml_debug_info;
 
 CAMLexport char_os * caml_cds_file = NULL;
 
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</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=eeca8fa52df1e09e79a49fb1c203f69ae91750b0&amp;showmsg=1'>root</a>/<a href='/guix/log/Makefile.am?id=eeca8fa52df1e09e79a49fb1c203f69ae91750b0&amp;showmsg=1'>Makefile.am</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/Makefile.am?id=eeca8fa52df1e09e79a49fb1c203f69ae91750b0'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2022-11-08 12:54:32 -0500'>2022-11-08</span></td><td class='logsubject'><a href='/guix/commit/Makefile.am?id=c52cdd18d6f8dddd69dfb1f8b5214a0db6ebb562'>gnu: Remove linux-libre 5.19.</a></td><td>Leo Famulari</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/linux.scm (linux-libre-5.19-version,
linux-libre-5.19-gnu-revision, deblob-scripts-5.19,
linux-libre-5.19-pristine-source, linux-libre-5.19-source,
linux-libre-headers-5.19, linux-libre-5.19): Remove variables.
* gnu/packages/aux-files/linux-libre/5.19-arm.conf,
gnu/packages/aux-files/linux-libre/5.19-arm64.conf,
gnu/packages/aux-files/linux-libre/5.19-i686.conf,
gnu/packages/aux-files/linux-libre/5.19-x86_64.conf: Delete files.
* Makefile.am (AUX_FILES): Remove them.


</td></tr>
<tr class='logheader'><td><span title='2022-11-02 01:01:51 -0400'>2022-11-02</span></td><td class='logsubject'><a href='/guix/commit/Makefile.am?id=2fde8cf3995c4cf7b9bc5e4fe0864172a896bbfb'>gnu: linux-libre: Add linux-libre 6.0.6.</a></td><td>Leo Famulari</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/linux.scm (linux-libre-6.0-version,
linux-libre-6.0-pristine-source, linux-libre-6.0-source,
linux-libre-headers-6.0, linux-libre-6.0): New variables.
* gnu/packages/aux-files/linux-libre/6.0-arm.conf,
gnu/packages/aux-files/linux-libre/6.0-arm64.conf,
gnu/packages/aux-files/linux-libre/6.0-i686.conf,
gnu/packages/aux-files/linux-libre/6.0-x86_64.conf: New files.
* Makefile.am (AUX_FILES): Add them.


</td></tr>
<tr class='logheader'><td><span title='2022-10-27 19:43:06 +0200'>2022-10-27</span></td><td class='logsubject'><a href='/guix/commit/Makefile.am?id=400a7a4c80efbde1905ae98a298bbb5882d46a0d'>build-system: Add pyproject-build-system.</a></td><td>Lars-Dominik Braun</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
This is an experimental build system based on python-build-system
that implements PEP 517-compliant builds.

* doc/guix.texi (Build Systems): Add pyproject-build-system section.
* doc/contributing.texi (Python Modules): Mention pyproject.toml and the
PYTHON-TOOLCHAIN package, as well as differences to python-build-system.
* guix/build-system/pyproject.scm,
guix/build/pyproject-build-system.scm,
gnu/packages/aux-files/python/sanity-check-next.py,
gnu/packages/python-commencement.scm: New files.
* Makefile.am (MODULES): Register the new build systems.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add python-commencement.scm.
* gnu/packages/python.scm (python-sans-pip, python-sans-pip-wrapper): New
variables.

Co-authored-by: Marius Bakke &lt;marius@gnu.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2022-09-06 08:58:13 -0400'>2022-09-06</span></td><td class='logsubject'><a href='/guix/commit/Makefile.am?id=0f2776399ecebb3483c8e870d424d1c3cd7f7f73'>gnu: Remove linux-libre 5.18.</a></td><td>Leo Famulari</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/linux.scm (linux-libre-5.18-version,
linux-libre-5.18-gnu-revision, deblob-scripts-5.18,
linux-libre-5.18-pristine-source, linux-libre-5.18-source,
linux-libre-headers-5.18, linux-libre-5.18): Remove variables.
* gnu/packages/aux-files/linux-libre/5.18-arm.conf,
gnu/packages/aux-files/linux-libre/5.18-arm64.conf,
gnu/packages/aux-files/linux-libre/5.18-i686.conf,
gnu/packages/aux-files/linux-libre/5.18-x86_64.conf: Delete files.
* Makefile.am (AUX_FILES): Remove them.


</td></tr>
<tr class='logheader'><td><span title='2022-08-31 15:00:45 -0400'>2022-08-31</span></td><td class='logsubject'><a href='/guix/commit/Makefile.am?id=58ff4553289a47f1b97b44eddef2e85a113d3652'>gnu: Add linux-libre 5.19.</a></td><td>Leo Famulari</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/linux.scm (linux-libre-5.19-version,
linux-libre-5.19-gnu-revision, deblob-scripts-5.19,
linux-libre-5.19-pristine-source, linux-libre-5.19-source,
linux-libre-headers-5.19, linux-libre-5.19): New variables.
* gnu/packages/aux-files/linux-libre/5.19-arm.conf,
gnu/packages/aux-files/linux-libre/5.19-arm64.conf,
gnu/packages/aux-files/linux-libre/5.19-i686.conf,
gnu/packages/aux-files/linux-libre/5.19-x86_64.conf: New files.
* Makefile.am (AUX_FILES): Add them.


</td></tr>
<tr class='logheader'><td><span title='2022-08-28 22:28:47 -0400'>2022-08-28</span></td><td class='logsubject'><a href='/guix/commit/Makefile.am?id=0ea62e84a787fe94cfeadf67ef27ea995a382b84'>services: Add lightdm-service-type.</a></td><td>Maxim Cournoyer</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/services/lightdm.scm: New service.
* tests/services/lightdm.scm: Test it.
* doc/guix.texi (X Window): Document it.
* gnu/local.mk (GNU_SYSTEM_MODULES): Register it.

Co-authored-by: L p R n d n &lt;guix@lprndn.info&gt;
Co-authored-by: Ricardo Wurmus &lt;rekado@elephly.net&gt;


</td></tr>