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kbuild: deb-pkg: add comment about future removal of KDEB_COMPRESS

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'man dpkg-deb' describes as follows:

    DPKG_DEB_COMPRESSOR_TYPE
        Sets the compressor type to use (since dpkg 1.21.10).

        The -Z option overrides this value.

When commit 1a7f0a34ea ("builddeb: allow selection of .deb compressor")
was applied, dpkg-deb did not support this environment variable.

Later, dpkg commit c10aeffc6d71 ("dpkg-deb: Add support for
DPKG_DEB_COMPRESSOR_TYPE/LEVEL") introduced support for
DPKG_DEB_COMPRESSOR_TYPE, which provides the same functionality as
KDEB_COMPRESS.

KDEB_COMPRESS is still useful for users of older dpkg versions, but I
would like to remove this redundant functionality in the future.

This commit adds comments to notify users of the planned removal and to
encourage migration to DPKG_DEB_COMPRESSOR_TYPE where possible.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada
2025-03-14 18:53:35 +09:00
parent 00e81f4fc1
commit a7a05b1b27
2 changed files with 7 additions and 3 deletions
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4
scripts/package/debian/rules
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@@ -41,6 +41,10 @@ package = $($(@:binary-%=%-package))
# which package is being processed in the build log.
DH_OPTIONS = -p$(package)
# Note: future removal of KDEB_COMPRESS
# dpkg-deb >= 1.21.10 supports the DPKG_DEB_COMPRESSOR_TYPE environment
# variable, which provides the same functionality as KDEB_COMPRESS. The
# KDEB_COMPRESS variable will be removed in the future.
define binary
$(Q)dh_testdir $(DH_OPTIONS)
$(Q)dh_testroot $(DH_OPTIONS)