kumquat-buildroot/package/util-linux/util-linux-libs/util-linux-libs.mk

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package/util-linux: build programs and libraries in separate packages The different tools and libraries in util-linux have a lot of optional dependencies. When we want to support those optional dependencies, we can easily generate dependency cycles. For instance, findmount and lsblk need udev to work correctly, but eudev and systemd both depend libblkid, which comes from util-linux. Normal distros (e.g. Debian) solve this by first building a minimal package that has no dependencies at all, then build the packages that depend on util-linux, and finally rebuild util-linux with all bells and whistles. Solve it in Buildroot by means of the following changes: - Split util-linux into two packages: - util-linux-libs, providing lib{blkid,fdisk,mount,smartcols,uuid}. - util-linux, providing both the aforementioned libs and the programs. - Add a blind selection for util-linux-libs, i.e. it is indirectly selected according to the util-linux options. - Make host and target util-linux have a build dependencies on the -libs packages. - Make eudev and systemd have build dependencies on util-linux-libs. This can be extended to other packages in the future but is not needed right now because the configuration options are backward-compatible. - Make util-linux have an optional build dependency on the package that provides libudev (either eudev or systemd), if it is selected. Installing util-linux overrides files installed by util-linux-libs but this is not a problem: it's allowed for a package to overwrite files from another package, as long as there is a dependency between the two. util-linux-libs has a Config.in symbol for the package as a whole, but not for the individual libraries: it simply reuses the symbols of the full package. The build dependency of util-linux on util-linux-libs ensures that util-linux overwrites the files installed by util-linux-libs and not vice versa. In practice this dependency shouldn't be needed: the only reason for util-linux-libs to be built is to break a circular dependency. In that case, there is already a transitive dependency of util-linux on util-linux-libs, so adding it explicitly is redundant. Still, better safe than sorry. host-util-linux-libs is not needed at the moment. It can be added if we have a dependency cycle problem later. With this approach we don't need to patch configuration files neither change packages other than eudev and systemd. Other packages that require util-linux libraries and whose libraries may be used by util-linux programs can be updated later. We also don't need to change any existing defconfig, since all configuration options are kept in the util-linux package. Fixes: https://bugs.busybox.net/show_bug.cgi?id=11811 Signed-off-by: Carlos Santos <unixmania@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-09-29 16:01:35 +02:00
################################################################################
#
# util-linux-libs
#
################################################################################
# Please keep this file as similar as possible to util-linux.mk
UTIL_LINUX_LIBS_VERSION = $(UTIL_LINUX_VERSION)
UTIL_LINUX_LIBS_SOURCE = $(UTIL_LINUX_SOURCE)
UTIL_LINUX_LIBS_SITE = $(UTIL_LINUX_SITE)
UTIL_LINUX_LIBS_DL_SUBDIR = $(UTIL_LINUX_DL_SUBDIR)
UTIL_LINUX_LIBS_CPE_ID_VENDOR = $(UTIL_LINUX_CPE_ID_VENDOR)
UTIL_LINUX_LIBS_CPE_ID_PRODUCT = $(UTIL_LINUX_CPE_ID_PRODUCT)
package/util-linux: build programs and libraries in separate packages The different tools and libraries in util-linux have a lot of optional dependencies. When we want to support those optional dependencies, we can easily generate dependency cycles. For instance, findmount and lsblk need udev to work correctly, but eudev and systemd both depend libblkid, which comes from util-linux. Normal distros (e.g. Debian) solve this by first building a minimal package that has no dependencies at all, then build the packages that depend on util-linux, and finally rebuild util-linux with all bells and whistles. Solve it in Buildroot by means of the following changes: - Split util-linux into two packages: - util-linux-libs, providing lib{blkid,fdisk,mount,smartcols,uuid}. - util-linux, providing both the aforementioned libs and the programs. - Add a blind selection for util-linux-libs, i.e. it is indirectly selected according to the util-linux options. - Make host and target util-linux have a build dependencies on the -libs packages. - Make eudev and systemd have build dependencies on util-linux-libs. This can be extended to other packages in the future but is not needed right now because the configuration options are backward-compatible. - Make util-linux have an optional build dependency on the package that provides libudev (either eudev or systemd), if it is selected. Installing util-linux overrides files installed by util-linux-libs but this is not a problem: it's allowed for a package to overwrite files from another package, as long as there is a dependency between the two. util-linux-libs has a Config.in symbol for the package as a whole, but not for the individual libraries: it simply reuses the symbols of the full package. The build dependency of util-linux on util-linux-libs ensures that util-linux overwrites the files installed by util-linux-libs and not vice versa. In practice this dependency shouldn't be needed: the only reason for util-linux-libs to be built is to break a circular dependency. In that case, there is already a transitive dependency of util-linux on util-linux-libs, so adding it explicitly is redundant. Still, better safe than sorry. host-util-linux-libs is not needed at the moment. It can be added if we have a dependency cycle problem later. With this approach we don't need to patch configuration files neither change packages other than eudev and systemd. Other packages that require util-linux libraries and whose libraries may be used by util-linux programs can be updated later. We also don't need to change any existing defconfig, since all configuration options are kept in the util-linux package. Fixes: https://bugs.busybox.net/show_bug.cgi?id=11811 Signed-off-by: Carlos Santos <unixmania@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-09-29 16:01:35 +02:00
# README.licensing claims that some files are GPL-2.0 only, but this is not
# true. Some files are GPL-3.0+ but only in tests and optionally in hwclock
# (but we disable that option). rfkill uses an ISC-style license.
UTIL_LINUX_LIBS_LICENSE = LGPL-2.1+ (libblkid, libfdisk, libmount), BSD-3-Clause (libuuid)
UTIL_LINUX_LIBS_LICENSE_FILES = README.licensing \
Documentation/licenses/COPYING.BSD-3-Clause \
Documentation/licenses/COPYING.LGPL-2.1-or-later
UTIL_LINUX_LIBS_INSTALL_STAGING = YES
UTIL_LINUX_LIBS_DEPENDENCIES = \
host-pkgconf \
$(TARGET_NLS_DEPENDENCIES)
UTIL_LINUX_LIBS_CONF_OPTS += \
--disable-rpath \
--disable-makeinstall-chown
UTIL_LINUX_LIBS_LINK_LIBS = $(TARGET_NLS_LIBS)
# Prevent the installation from attempting to move shared libraries from
# ${usrlib_execdir} (/usr/lib) to ${libdir} (/lib), since both paths are
# the same when merged usr is in use.
ifeq ($(BR2_ROOTFS_MERGED_USR),y)
UTIL_LINUX_LIBS_CONF_OPTS += --bindir=/usr/bin --sbindir=/usr/sbin --libdir=/usr/lib
endif
# systemd depends on util-linux-libs so we disable systemd support
UTIL_LINUX_LIBS_CONF_OPTS += \
--without-systemd \
--with-systemdsystemunitdir=no
# systemd/eudev depend on util-linux-libs so we disable udev support
UTIL_LINUX_LIBS_CONF_OPTS += --without-udev
# No libs use wchar
UTIL_LINUX_LIBS_CONF_OPTS += --disable-widechar
# No libs use ncurses
UTIL_LINUX_LIBS_CONF_OPTS += --without-ncursesw --without-ncurses
# Unfortunately, the util-linux does LIBS="" at the end of its
# configure script. So we have to pass the proper LIBS value when
# calling the configure script to make configure tests pass properly,
# and then pass it again at build time.
UTIL_LINUX_LIBS_CONF_ENV += LIBS="$(UTIL_LINUX_LIBS_LINK_LIBS)"
UTIL_LINUX_LIBS_MAKE_OPTS += LIBS="$(UTIL_LINUX_LIBS_LINK_LIBS)"
# libmount optionally uses selinux
ifeq ($(BR2_PACKAGE_UTIL_LINUX_LIBMOUNT)$(BR2_PACKAGE_LIBSELINUX),yy)
UTIL_LINUX_LIBS_DEPENDENCIES += libselinux
UTIL_LINUX_LIBS_CONF_OPTS += --with-selinux
else
UTIL_LINUX_LIBS_CONF_OPTS += --without-selinux
endif
# Disable utilities
UTIL_LINUX_LIBS_CONF_OPTS += \
--disable-all-programs \
$(if $(BR2_PACKAGE_UTIL_LINUX_LIBBLKID),--enable-libblkid,--disable-libblkid) \
$(if $(BR2_PACKAGE_UTIL_LINUX_LIBFDISK),--enable-libfdisk,--disable-libfdisk) \
$(if $(BR2_PACKAGE_UTIL_LINUX_LIBMOUNT),--enable-libmount,--disable-libmount) \
$(if $(BR2_PACKAGE_UTIL_LINUX_LIBSMARTCOLS),--enable-libsmartcols,--disable-libsmartcols) \
$(if $(BR2_PACKAGE_UTIL_LINUX_LIBUUID),--enable-libuuid,--disable-libuuid)
# libmount python bindings are separate, will be installed by full util-linux
UTIL_LINUX_LIBS_CONF_OPTS += --without-python --disable-pylibmount
# No libs use readline
UTIL_LINUX_LIBS_CONF_OPTS += --without-readline
# No libs use audit
UTIL_LINUX_LIBS_CONF_OPTS += --without-audit
# No libs use libmagic
UTIL_LINUX_LIBS_CONF_OPTS += --without-libmagic
package/util-linux: build programs and libraries in separate packages The different tools and libraries in util-linux have a lot of optional dependencies. When we want to support those optional dependencies, we can easily generate dependency cycles. For instance, findmount and lsblk need udev to work correctly, but eudev and systemd both depend libblkid, which comes from util-linux. Normal distros (e.g. Debian) solve this by first building a minimal package that has no dependencies at all, then build the packages that depend on util-linux, and finally rebuild util-linux with all bells and whistles. Solve it in Buildroot by means of the following changes: - Split util-linux into two packages: - util-linux-libs, providing lib{blkid,fdisk,mount,smartcols,uuid}. - util-linux, providing both the aforementioned libs and the programs. - Add a blind selection for util-linux-libs, i.e. it is indirectly selected according to the util-linux options. - Make host and target util-linux have a build dependencies on the -libs packages. - Make eudev and systemd have build dependencies on util-linux-libs. This can be extended to other packages in the future but is not needed right now because the configuration options are backward-compatible. - Make util-linux have an optional build dependency on the package that provides libudev (either eudev or systemd), if it is selected. Installing util-linux overrides files installed by util-linux-libs but this is not a problem: it's allowed for a package to overwrite files from another package, as long as there is a dependency between the two. util-linux-libs has a Config.in symbol for the package as a whole, but not for the individual libraries: it simply reuses the symbols of the full package. The build dependency of util-linux on util-linux-libs ensures that util-linux overwrites the files installed by util-linux-libs and not vice versa. In practice this dependency shouldn't be needed: the only reason for util-linux-libs to be built is to break a circular dependency. In that case, there is already a transitive dependency of util-linux on util-linux-libs, so adding it explicitly is redundant. Still, better safe than sorry. host-util-linux-libs is not needed at the moment. It can be added if we have a dependency cycle problem later. With this approach we don't need to patch configuration files neither change packages other than eudev and systemd. Other packages that require util-linux libraries and whose libraries may be used by util-linux programs can be updated later. We also don't need to change any existing defconfig, since all configuration options are kept in the util-linux package. Fixes: https://bugs.busybox.net/show_bug.cgi?id=11811 Signed-off-by: Carlos Santos <unixmania@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2019-09-29 16:01:35 +02:00
$(eval $(autotools-package))