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docs: Set minimal gtags / GNU GLOBAL version to 6.6.5
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commit b230235 upstream.

Kernel build now uses the gtags "-C (--directory)" option, available
since GNU GLOBAL v6.6.5.  Update the documentation accordingly.

Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Cc: <stable@vger.kernel.org>
Link: https://lists.gnu.org/archive/html/info-global/2020-09/msg00000.html
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ahmed S. Darwish authored and Greg Kroah-Hartman committed Jul 5, 2023
1 parent c437b26 commit fe56f50
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7 changes: 7 additions & 0 deletions Documentation/process/changes.rst
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Expand Up @@ -60,6 +60,7 @@ openssl & libcrypto 1.0.0 openssl version
bc 1.06.95 bc --version
Sphinx\ [#f1]_ 1.7 sphinx-build --version
cpio any cpio --version
gtags (optional) 6.6.5 gtags --version
====================== =============== ========================================

.. [#f1] Sphinx is needed only to build the Kernel documentation
Expand Down Expand Up @@ -174,6 +175,12 @@ You will need openssl to build kernels 3.7 and higher if module signing is
enabled. You will also need openssl development packages to build kernels 4.3
and higher.

gtags / GNU GLOBAL (optional)
-----------------------------

The kernel build requires GNU GLOBAL version 6.6.5 or later to generate
tag files through ``make gtags``. This is due to its use of the gtags
``-C (--directory)`` flag.

System utilities
****************
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