build: use library rather than cross-directory compilation

If we use subdir-objects with automake, any reference to a
cross-directory .c file will result in automake creating
rules that track dependency in the cross directory.  But this
presents a problem during 'make distclean' - if the cross
directory is cleaned up first, then the daemon directory will
be left with dangling references to .Po dependency files that
no longer exist.

Meanwhile, referring to the cross-directory .c file means
that we are compiling the file twice - once in src, and once
in daemon.  Better is to compile just once in src into a
convenience library, and then use that library from daemon.

The tests directory had a similar situation of a cross-directory
.c file; to solve that, we actually need a convenience library.

* daemon/Makefile.am (DAEMON_SOURCES): Drop .c files...
(libvirtd_LDADD): ...and instead use library.
(libvirtd_conf_la_SOURCES): Declare a new convenience library.
(libvirtd_LDFLAGS): Drop duplicate flag.
* tests/Makefile.am (libvirtdconftest_SOURCES): Drop .c file...
(libvirtdconftest_LDADD): ..and instead use library.

Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Eric Blake 2013-09-07 20:49:17 -06:00
parent 073e157533
commit 012c25e88c
2 changed files with 27 additions and 9 deletions

View File

@ -37,14 +37,12 @@ DAEMON_GENERATED = \
DAEMON_SOURCES = \
libvirtd.c libvirtd.h \
libvirtd-config.c libvirtd-config.h \
remote.c remote.h \
stream.c stream.h \
../src/remote/remote_protocol.c \
../src/remote/lxc_protocol.c \
../src/remote/qemu_protocol.c \
$(DAEMON_GENERATED)
LIBVIRTD_CONF_SOURCES = libvirtd-config.c libvirtd-config.h
DISTCLEANFILES =
EXTRA_DIST = \
remote_dispatch.h \
@ -67,7 +65,9 @@ EXTRA_DIST = \
THREADS.txt \
libvirtd.pod.in \
libvirtd.8.in \
$(DAEMON_SOURCES)
$(DAEMON_SOURCES) \
$(LIBVIRTD_CONF_SOURCES) \
$(NULL)
BUILT_SOURCES =
@ -95,6 +95,22 @@ qemu_dispatch.h: $(srcdir)/../src/rpc/gendispatch.pl \
if WITH_LIBVIRTD
# Build a convenience library, for reuse in tests/libvirtdconftest
noinst_LTLIBRARIES = libvirtd_conf.la
libvirtd_conf_la_SOURCES = $(LIBVIRTD_CONF_SOURCES)
libvirtd_conf_la_CFLAGS = \
$(LIBXML_CFLAGS) \
$(WARN_CFLAGS) $(PIE_CFLAGS) \
$(COVERAGE_CFLAGS) \
$(NULL)
libvirtd_conf_la_LDFLAGS = \
$(RELRO_LDFLAGS) \
$(PIE_LDFLAGS) \
$(COVERAGE_LDFLAGS) \
$(NO_INDIRECT_LDFLAGS) \
$(NULL)
libvirtd_conf_la_LIBADD = $(LIBXML_LIBS)
man8_MANS = libvirtd.8
sbin_PROGRAMS = libvirtd
@ -130,7 +146,6 @@ libvirtd_CFLAGS = \
libvirtd_LDFLAGS = \
$(RELRO_LDFLAGS) \
$(PIE_LDFLAGS) \
$(RELRO_LDFLAGS) \
$(COVERAGE_LDFLAGS) \
$(NO_INDIRECT_LDFLAGS) \
$(NULL)
@ -148,8 +163,11 @@ libvirtd_LDADD += ../src/libvirt_probes.lo
endif WITH_DTRACE_PROBES
libvirtd_LDADD += \
libvirtd_conf.la \
../src/libvirt-lxc.la \
../src/libvirt-qemu.la
../src/libvirt-qemu.la \
../src/libvirt_driver_remote.la \
$(NULL)
if ! WITH_DRIVER_MODULES
if WITH_QEMU

View File

@ -599,8 +599,8 @@ commandhelper_LDFLAGS = -static
if WITH_LIBVIRTD
libvirtdconftest_SOURCES = \
libvirtdconftest.c testutils.h testutils.c \
../daemon/libvirtd-config.c
libvirtdconftest_LDADD = $(LDADDS)
$(NULL)
libvirtdconftest_LDADD = ../daemon/libvirtd_conf.la $(LDADDS)
else ! WITH_LIBVIRTD
EXTRA_DIST += libvirtdconftest.c
endif ! WITH_LIBVIRTD