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package/libcap: do not attempt to run ldconfig

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The libcap Makefile is hand-coded (i.e. not autotools), and hard-codes
calls to /sbin/ldconfig, unless it is installed out-of-tree. For target
packages, this is done, but for host package this is not done, as we
do set PREFIX instead, which causes libcap's Makefile to call ldconfig
and emits a spurious warning (twice):

    install -m 0755 libcap.so.2.73 /home/ymorin/dev/buildroot/O/master/per-package/host-libcap/host/lib/libcap.so.2.73
    ln -sf libcap.so.2.73 /home/ymorin/dev/buildroot/O/master/per-package/host-libcap/host/lib/libcap.so.2
    ln -sf libcap.so.2 /home/ymorin/dev/buildroot/O/master/per-package/host-libcap/host/lib/libcap.so
    /sbin/ldconfig
    /sbin/ldconfig: Can't create temporary cache file /etc/ld.so.cache~: Permission denied
    make[4]: [Makefile:200: install-shared-cap] Error 1 (ignored)

This is just a warning, but it is incorrect still.

Fake an out-of-tree install with a non-empy DESTDIR that is just '/',
and thus does in fact not install out-of-tree. This is enough to
actually silence the warning. Add a little comment to explain that.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Bernd Kuhls <bernd@kuhls.net>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
This commit is contained in:
Yann E. MORIN
2025-03-28 20:26:56 +01:00
committed by Julien Olivain
parent f3ce9a56f9
commit e172bb48d3
1 changed files with 4 additions and 1 deletions
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5
package/libcap/libcap.mk
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@@ -64,8 +64,11 @@ define HOST_LIBCAP_BUILD_CMDS
$(HOST_LIBCAP_MAKE_FLAGS)
endef
# Set DESTDIR to a non-empty path, so that libcap's Makefile
# does not trigger calls to ldconfig
define HOST_LIBCAP_INSTALL_CMDS
$(HOST_MAKE_ENV) $(MAKE) -C $(@D) $(HOST_LIBCAP_MAKE_FLAGS) install
$(HOST_MAKE_ENV) $(MAKE) -C $(@D) $(HOST_LIBCAP_MAKE_FLAGS) \
DESTDIR=/ install
endef
$(eval $(generic-package))