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Makefile-switchroot.am
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Makefile-switchroot.am
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# Copyright (C) 2011 Colin Walters <[email protected]>
#
# SPDX-License-Identifier: LGPL-2.0+
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <https://www.gnu.org/licenses/>.
ostree_prepare_root_SOURCES = \
src/switchroot/ostree-mount-util.h
ostree_prepare_root_CFLAGS =
ostree_prepare_root_CPPFLAGS = $(AM_CPPFLAGS)
ostree_prepare_root_LDADD =
if BUILDOPT_SYSTEMD
ostree_boot_PROGRAMS += ostree-remount
else
# It is built anyway as a side-effect of having the symlink in tests/,
# and if we declare it here, it gets cleaned up properly
check_PROGRAMS += ostree-remount
endif
if BUILDOPT_USE_STATIC_COMPILER
ostree_prepare_root_SOURCES += src/switchroot/ostree-prepare-root-static.c
# ostree-prepare-root can be used as init in a system without a populated /lib.
# To support this use case we need to link statically as we will be unable to
# locate libc.so at run time if it's not installed in /lib.
#
# We support building ostree-prepare-root with a different compiler to the rest
# of ostree so we can use musl rather than glibc. This reduces the size of the
# executable significantly: from ~700K -> ~30K. We have to use _SCRIPTS here
# to get autotools to install this as an executable but without generating rules
# to make it itself which we have specified manually. See
# https://lists.gnu.org/archive/html/help-gnu-utils/2007-01/msg00007.html
ostree_boot_SCRIPTS += ostree-prepare-root
ostree-prepare-root : $(ostree_prepare_root_SOURCES)
$(STATIC_COMPILER) -o $@ -static $(top_srcdir)/src/switchroot/ostree-prepare-root-static.c $(ostree_prepare_root_CPPFLAGS) $(AM_CFLAGS) $(DEFAULT_INCLUDES) -DOSTREE_PREPARE_ROOT_STATIC=1
CLEANFILES += ostree-prepare-root
else
ostree_boot_PROGRAMS += ostree-prepare-root
ostree_prepare_root_CFLAGS += $(AM_CFLAGS) -Isrc/switchroot -I$(srcdir)/src/libostree -I$(srcdir)/src/libotcore -I$(srcdir)/src/libotutil
ostree_prepare_root_SOURCES += src/switchroot/ostree-prepare-root.c
ostree_prepare_root_CPPFLAGS += $(OT_INTERNAL_GIO_UNIX_CFLAGS) $(OT_DEP_CRYPTO_CFLAGS) -I $(srcdir)/libglnx
ostree_prepare_root_LDADD += $(AM_LDFLAGS) $(OT_INTERNAL_GIO_UNIX_LIBS) $(OT_DEP_CRYPTO_LIBS) libotcore.la libotutil.la libglnx.la
endif # BUILDOPT_USE_STATIC_COMPILER
ostree_remount_SOURCES = \
src/switchroot/ostree-mount-util.h \
src/switchroot/ostree-remount.c \
$(NULL)
ostree_remount_CPPFLAGS = $(AM_CPPFLAGS) $(OT_INTERNAL_GIO_UNIX_CFLAGS) -Isrc/switchroot -I$(srcdir)/src/libotcore -I$(srcdir)/src/libotutil -I$(srcdir)/libglnx
ostree_remount_LDADD = $(AM_LDFLAGS) $(OT_INTERNAL_GIO_UNIX_LIBS) libotcore.la libotutil.la libglnx.la
if USE_SELINUX
ostree_remount_CPPFLAGS += $(OT_DEP_SELINUX_CFLAGS)
ostree_remount_LDADD += $(OT_DEP_SELINUX_LIBS)
endif
if USE_COMPOSEFS
ostree_prepare_root_LDADD += $(OT_DEP_COMPOSEFS_LIBS)
endif
if BUILDOPT_SYSTEMD
ostree_prepare_root_CPPFLAGS += -DHAVE_SYSTEMD=1
ostree_prepare_root_LDADD += $(LIBSYSTEMD_LIBS)
endif
# This is the "new mode" of using a generator for /var; see
# https://github.com/ostreedev/ostree/issues/855
if BUILDOPT_SYSTEMD_AND_LIBMOUNT
ostree_prepare_root_CPPFLAGS += -DHAVE_SYSTEMD_AND_LIBMOUNT=1
ostree_remount_CPPFLAGS += -DHAVE_SYSTEMD_AND_LIBMOUNT=1
systemdsystemgenerator_PROGRAMS = ostree-system-generator
GITIGNOREFILES += $(systemdsystemgenerator_PROGRAMS)
ostree_system_generator_SOURCES = src/switchroot/ostree-mount-util.h \
src/switchroot/ostree-system-generator.c
ostree_system_generator_CPPFLAGS = $(AM_CPPFLAGS) -I$(srcdir)/libglnx -I$(srcdir)/src/libostree
ostree_system_generator_CFLAGS = $(AM_CFLAGS) $(OT_INTERNAL_GIO_UNIX_CFLAGS)
ostree_system_generator_LDADD = $(AM_LDFLAGS) libglnx.la libostree-1.la $(OT_INTERNAL_GIO_UNIX_LIBS)
# Allow the distcheck install under $prefix test to pass
AM_DISTCHECK_CONFIGURE_FLAGS += --with-systemdsystemgeneratordir='$${libdir}/systemd/system-generators'
endif