Hello,
this patch (against 2.5.46) introduces two special variables which make it
actually possible to have .so as the only product of build in some directory
and to link something against .so being built in another directory. The
variable host-cshlib-extra makes it possible to explicitly mention shared
objects to be built and the variable $(<foo>-linkobjs) allows user to specify
additional objects to link <foo> against, while not creating any dependencies
of <foo> on the objects.
The changes are minimal while dramatically extending possibilities for
messing with the shared objects and they should have no unwanted side-effects,
and it appears to actually work for me. Please apply.
scripts/Makefile.build | 6 ++++++
scripts/Makefile.lib | 2 +-
2 files changed, 7 insertions(+), 1 deletion(-)
Kind regards,
Petr Baudis
diff -ru linux/scripts/Makefile.build linux+pasky/scripts/Makefile.build
--- linux/scripts/Makefile.build Tue Nov 5 19:29:20 2002
+++ linux+pasky/scripts/Makefile.build Wed Nov 6 19:39:52 2002
@@ -197,6 +197,11 @@
# libkconfig.so as the executable conf.
# Note: Shared libraries consisting of C++ files are not supported
#
+# host-progs := mconf
+# mconf-objs := mconf.o
+# mconf-linkobjs := ../lxdialog/liblxdialog.so
+# Will link mconf.o against ../lxdialog/liblxdialog.so, but will not attempt
+# to build ../lxdialog/liblxdialog.so nor will make mconf depend on it.
# Create executable from a single .c file
# host-csingle -> Executable
@@ -212,6 +217,7 @@
quiet_cmd_host-cmulti = HOSTLD $@
cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
$(addprefix $(obj)/,$($(@F)-objs)) \
+ $(addprefix $(obj)/,$($(@F)-linkobjs)) \
$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
$(host-cmulti): %: $(host-cobjs) $(host-cshlib) FORCE
$(call if_changed,host-cmulti)
diff -ru linux/scripts/Makefile.lib linux+pasky/scripts/Makefile.lib
--- linux/scripts/Makefile.lib Fri Nov 1 22:22:07 2002
+++ linux+pasky/scripts/Makefile.lib Wed Nov 6 19:07:47 2002
@@ -78,7 +78,7 @@
# Shared libaries (only .c supported)
# Shared libraries (.so) - all .so files referenced in "xxx-objs"
-host-cshlib := $(sort $(filter %.so, $(host-cobjs)))
+host-cshlib := $(host-cshlib-extra) $(sort $(filter %.so, $(host-cobjs)))
# Remove .so files from "xxx-objs"
host-cobjs := $(filter-out %.so,$(host-cobjs))
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