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libsane: Only depend on and link in the kitchen sink if needed 

There is no need to depend on and link in all the various dependencies
for whatever backends *might* be preloaded if none are.  Distributions
habitually rip these out, rightfully so, to reduce the list of package
dependencies.  This will achieve the same while still doing the "right
thing" for builds that do preload one or more backens.
merge-requests/1/head
Olaf Meeuwissen 2017-06-07 22:06:05 +09:00
rodzic 2284c6e034
commit a2f1cc1c82
2 zmienionych plików z 12 dodań i 7 usunięć
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17
backend/Makefile.am
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@ -1114,15 +1114,18 @@ EXTRA_DIST += dll.aliases
# (see liblib.la and snprintf), or move sanei_auth outside
# of libsanei.
#
# FIXME: This is linking in every possible external library because there
# is the off chance user is using PRELOADABLE_BACKENDS that may need
# them. Since standard mode is to only have the dll backend, its a waste.
# Need to update configure to build a list of only what needs to go into
# LIBADD based on whats being preloaded.
# FIXME: This is using every possibly needed library and dependency
# when the user is using any PRELOADABLE_BACKENDS, irrespective of
# what backends are preloaded. It should include what is needed by
# those backends that are actually preloaded.
if preloadable_backends_enabled
PRELOADABLE_BACKENDS_LIBS = ../sanei/sanei_config2.lo ../sanei/sanei_usb.lo ../sanei/sanei_scsi.lo ../sanei/sanei_pv8630.lo ../sanei/sanei_pp.lo ../sanei/sanei_thread.lo ../sanei/sanei_lm983x.lo ../sanei/sanei_access.lo ../sanei/sanei_net.lo ../sanei/sanei_wire.lo ../sanei/sanei_codec_bin.lo ../sanei/sanei_pa4s2.lo ../sanei/sanei_ab306.lo ../sanei/sanei_pio.lo ../sanei/sanei_tcp.lo ../sanei/sanei_udp.lo ../sanei/sanei_magic.lo $(LIBV4L_LIBS) $(MATH_LIB) $(IEEE1284_LIBS) $(TIFF_LIBS) $(JPEG_LIBS) $(GPHOTO2_LIBS) $(SOCKET_LIBS) $(USB_LIBS) $(AVAHI_LIBS) $(SCSI_LIBS) $(PTHREAD_LIBS) $(RESMGR_LIBS)
PRELOADABLE_BACKENDS_DEPS = ../sanei/sanei_config2.lo ../sanei/sanei_usb.lo ../sanei/sanei_scsi.lo ../sanei/sanei_pv8630.lo ../sanei/sanei_pp.lo ../sanei/sanei_thread.lo ../sanei/sanei_lm983x.lo ../sanei/sanei_access.lo ../sanei/sanei_net.lo ../sanei/sanei_wire.lo ../sanei/sanei_codec_bin.lo ../sanei/sanei_pa4s2.lo ../sanei/sanei_ab306.lo ../sanei/sanei_pio.lo ../sanei/sanei_tcp.lo ../sanei/sanei_udp.lo ../sanei/sanei_magic.lo $(SANEI_SANEI_JPEG_LO)
endif
nodist_libsane_la_SOURCES = dll-s.c
libsane_la_CPPFLAGS = $(AM_CPPFLAGS) -DBACKEND_NAME=dll
libsane_la_LDFLAGS = $(DIST_LIBS_LDFLAGS)
libsane_la_LIBADD = $(COMMON_LIBS) $(PRELOADABLE_BACKENDS_ENABLED) libdll_preload.la sane_strstatus.lo ../sanei/sanei_init_debug.lo ../sanei/sanei_constrain_value.lo ../sanei/sanei_config.lo ../sanei/sanei_config2.lo ../sanei/sanei_usb.lo ../sanei/sanei_scsi.lo ../sanei/sanei_pv8630.lo ../sanei/sanei_pp.lo ../sanei/sanei_thread.lo ../sanei/sanei_lm983x.lo ../sanei/sanei_access.lo ../sanei/sanei_net.lo ../sanei/sanei_wire.lo ../sanei/sanei_codec_bin.lo ../sanei/sanei_pa4s2.lo ../sanei/sanei_ab306.lo ../sanei/sanei_pio.lo ../sanei/sanei_tcp.lo ../sanei/sanei_udp.lo ../sanei/sanei_magic.lo $(DL_LIBS) $(LIBV4L_LIBS) $(MATH_LIB) $(IEEE1284_LIBS) $(TIFF_LIBS) $(JPEG_LIBS) $(GPHOTO2_LIBS) $(SOCKET_LIBS) $(USB_LIBS) $(AVAHI_LIBS) $(SCSI_LIBS) $(PTHREAD_LIBS) $(RESMGR_LIBS)
libsane_la_LIBADD = $(COMMON_LIBS) $(PRELOADABLE_BACKENDS_ENABLED) libdll_preload.la sane_strstatus.lo ../sanei/sanei_init_debug.lo ../sanei/sanei_constrain_value.lo ../sanei/sanei_config.lo $(PRELOADABLE_BACKENDS_LIBS) $(DL_LIBS)
# WARNING: Automake is getting this wrong so have to do it ourselves.
libsane_la_DEPENDENCIES = $(COMMON_LIBS) $(PRELOADABLE_BACKENDS_ENABLED) libdll_preload.la sane_strstatus.lo ../sanei/sanei_init_debug.lo ../sanei/sanei_constrain_value.lo ../sanei/sanei_config.lo ../sanei/sanei_config2.lo ../sanei/sanei_usb.lo ../sanei/sanei_scsi.lo ../sanei/sanei_pv8630.lo ../sanei/sanei_pp.lo ../sanei/sanei_thread.lo ../sanei/sanei_lm983x.lo ../sanei/sanei_access.lo ../sanei/sanei_net.lo ../sanei/sanei_wire.lo ../sanei/sanei_codec_bin.lo ../sanei/sanei_pa4s2.lo ../sanei/sanei_ab306.lo ../sanei/sanei_pio.lo ../sanei/sanei_tcp.lo ../sanei/sanei_udp.lo ../sanei/sanei_magic.lo $(SANEI_SANEI_JPEG_LO)
libsane_la_DEPENDENCIES = $(COMMON_LIBS) $(PRELOADABLE_BACKENDS_ENABLED) libdll_preload.la sane_strstatus.lo ../sanei/sanei_init_debug.lo ../sanei/sanei_constrain_value.lo ../sanei/sanei_config.lo $(PRELOADABLE_BACKENDS_DEPS)

2
configure.ac
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@ -698,6 +698,8 @@ for backend in ${PRELOADABLE_BACKENDS} ; do
fi
PRELOADABLE_BACKENDS_ENABLED="${PRELOADABLE_BACKENDS_ENABLED} lib${backend}.la"
done
AM_CONDITIONAL([preloadable_backends_enabled],
[test x != "x$PRELOADABLE_BACKENDS_ENABLED"])
AC_SUBST(PRELOADABLE_BACKENDS)
AC_SUBST(PRELOADABLE_BACKENDS_ENABLED)