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-rw-r--r--Makerules287
1 files changed, 146 insertions, 141 deletions
diff --git a/Makerules b/Makerules
index b0be86b368..5d7b24f31f 100644
--- a/Makerules
+++ b/Makerules
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
+# Copyright (C) 1991-2002, 2003, 2004 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -56,6 +56,22 @@ ifndef +included-Makeconfig
include $(..)Makeconfig
endif
+# `configure' writes a definition of `config-sysdirs' in `config.make'.
+sysdirs = $(strip $(full_config_sysdirs))
+
++sysdir_pfx = $(common-objpfx)
+
+export sysdirs := $(sysdirs)
+
++sysdep_dirs := $(full_config_sysdirs)
+ifdef objdir
++sysdep_dirs := $(objdir) $(+sysdep_dirs)
+endif
+
+# Add -I switches to get the right sysdep directories.
+# `+includes' in Makeconfig references $(+sysdep-includes).
++sysdep-includes := $(addprefix -I,$(+sysdep_dirs))
+
# This variable is used in ``include $(o-iterator)'' after defining
# $(o-iterator-doit) to produce some desired rule using $o for the object
# suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
@@ -78,7 +94,7 @@ vpath %.x $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
# being included individually by a subdir makefile (hurd/Makefile needs this).
in-Makerules := yes
-sysdep-makefiles := $(wildcard $(sysdirs:=/Makefile))
+sysdep-makefiles := $(wildcard $(full_config_sysdirs:=/Makefile))
ifneq (,$(sysdep-makefiles))
include $(sysdep-makefiles)
endif
@@ -149,7 +165,7 @@ ifndef subdir
$(common-objpfx)%.make: $(..)%.make.c $(..)Makerules $(common-before-compile)
rm -f $@T $@.dT
(echo '# Generated from $*.make.c by Makerules.'; \
- $(CC) $(CFLAGS) $(CPPFLAGS) -E -DASSEMBLER $< \
+ $(CC) $(CFLAGS) $(CPPFLAGS) -E $< \
-MD -MP -MT '$$(common-objpfx)$*.make' -MF $@.dT \
| sed -n '/@@@/{s/@@@[ ]*\(.*\)@@@/\1/;s/[ ]*$$//p;}'; \
echo 'common-generated += $(@F)'; \
@@ -167,7 +183,6 @@ sed-remove-dotdot := -e 's@ *\([^ \/$$][^ \]*\)@ $$(..)\1@g' \
endif
-ifdef gen-as-const-headers
# Generating headers for assembly constants.
# We need this defined early to get into before-compile before
# it's used in sysd-rules, below.
@@ -186,16 +201,6 @@ $(common-objpfx)%.h $(common-objpfx)%.h.d: $(..)scripts/gen-as-const.awk \
mv -f $(@:.h.d=.h)T $(@:.h.d=.h)
vpath %.sym $(sysdirs)
before-compile += $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
-
-tests += $(gen-as-const-headers:%.sym=test-as-const-%)
-generated += $(gen-as-const-headers:%.sym=test-as-const-%.c)
-$(objpfx)test-as-const-%.c: $(..)scripts/gen-as-const.awk $(..)Makerules \
- %.sym $(common-objpfx)%.h
- ($(AWK) '{ sub(/^/, "asconst_", $$2); print; }' $(filter %.h,$^); \
- $(AWK) -v test=1 -f $< $(filter %.sym,$^); \
- echo '#include "$(..)test-skeleton.c"') > $@T
- mv -f $@T $@
-endif
# Generate an ordered list of implicit rules which find the source files in
# each sysdep directory. The old method was to use vpath to search all the
@@ -203,6 +208,53 @@ endif
# later directory would be chosen over a .c file in an earlier directory,
# which does not preserve the desired sysdeps ordering behavior.
+# It matters that this set of rules, for compiling from sources in
+# the current directory (the $srcdir/$subdir) come before the
+# generated sysdep rules in included from sysd-rules below. When
+# compiling in the source tree, generated sources go into the current
+# directory, and those should be chosen before any sources in sysdeps.
+define o-iterator-doit
+$(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+
+define o-iterator-doit
+$(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+
+define o-iterator-doit
+$(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+
+# Omit the objpfx rules when building in the source tree, because
+# objpfx is empty and so these rules just override the ones above.
+ifdef objpfx
+# Define first rules to find the source files in $(objpfx).
+# Generated source files will end up there.
+define o-iterator-doit
+$(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+
+define o-iterator-doit
+$(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+
+define o-iterator-doit
+$(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
+endef
+object-suffixes-left := $(all-object-suffixes)
+include $(o-iterator)
+endif
+
# System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
# patterns matching sysdep directories whose assembly source files should
# be suppressed.
@@ -213,22 +265,20 @@ endef
close-check-inhibit-asm = ;; esac ;
endif
--include $(common-objpfx)sysd-rules
+-include $(+sysdir_pfx)sysd-rules
ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
# The value of $(+sysdep_dirs) the sysd-rules was computed for
# differs from the one we are using now. So force a rebuild of sysd-rules.
sysd-rules-force = FORCE
FORCE:
endif
-$(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
- $(sysdep-makefiles) $(sysd-rules-force)
+$(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
+ $(wildcard $(foreach dir,$(sysdirs),\
+ $(dir)/Makefile))\
+ $(sysd-rules-force)
-@rm -f $@T
(echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
- for dir in $(config-sysdirs); do \
- case "$$dir" in \
- /*) ;; \
- *) dir="\$$(..)$$dir" ;; \
- esac; \
+ for dir in $(config-sysdirs:%='$$(..)%'); do \
for o in $(all-object-suffixes); do \
$(open-check-inhibit-asm) \
echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
@@ -243,10 +293,6 @@ $(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
\$$(compile-command.S)"; \
echo "\$$(objpfx)ptw-%$$o: $$dir/%.s \$$(before-compile); \
\$$(compile-command.s)"; \
- echo "\$$(objpfx)m_%$$o: $$dir/s_%.S \$$(before-compile); \
- \$$(compile-command.S)"; \
- echo "\$$(objpfx)m_%$$o: $$dir/s_%.s \$$(before-compile); \
- \$$(compile-command.s)"; \
$(close-check-inhibit-asm) \
echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
\$$(compile-command.c)"; \
@@ -254,11 +300,9 @@ $(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
\$$(compile-command.c)"; \
echo "\$$(objpfx)ptw-%$$o: $$dir/%.c \$$(before-compile); \
\$$(compile-command.c)"; \
- echo "\$$(objpfx)m_%$$o: $$dir/s_%.c \$$(before-compile); \
- \$$(compile-command.c)"; \
done; \
- echo "\$$(inst_includedir)/%.h: $$dir/%.h \$$(+force); \
- \$$(do-install)"; \
+ echo "\$$(objpfx)m_%.S: $$dir/s_%.S; \$$(+make-include-of-dep)"; \
+ echo "\$$(objpfx)m_%.c: $$dir/s_%.c; \$$(+make-include-of-dep)"; \
done; \
echo 'sysd-rules-done = t') > $@T
mv -f $@T $@
@@ -268,53 +312,11 @@ ifndef sysd-rules-done
no_deps=t
endif
-define o-iterator-doit
-$(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
-$(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
-$(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
-$(objpfx)%$o: %.cc $(before-compile); $$(compile-command.cc)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-# Omit the objpfx rules when building in the source tree, because
-# objpfx is empty and so these rules just override the ones above.
-ifdef objpfx
-# Define first rules to find the source files in $(objpfx).
-# Generated source files will end up there.
-define o-iterator-doit
-$(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
-$(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
-endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-
-define o-iterator-doit
-$(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
+# This is used by the m_%.[Sc] pattern rules in sysd-rules.
+define +make-include-of-dep
+echo '#include <$<>' > $@T
+mv -f $@T $@
endef
-object-suffixes-left := $(all-object-suffixes)
-include $(o-iterator)
-endif
# Generate version maps, but wait until sysdep-subdirs is known
ifeq ($(sysd-sorted-done),t)
@@ -326,7 +328,7 @@ postclean-generated += sysd-versions Versions.all abi-versions.h \
Versions.def.v.i Versions.def.v Versions.v.i Versions.v
ifndef avoid-generated
-ifneq ($(sysd-versions-subdirs),$(sorted-subdirs) $(config-sysdirs))
+ifneq ($(sysd-versions-subdirs),$(all-subdirs) $(config-sysdirs))
sysd-versions-force = FORCE
FORCE:
endif
@@ -336,22 +338,21 @@ $(common-objpfx)Versions.def.v.i: $(..)Versions.def \
$(common-objpfx)Versions.all: $(..)scripts/firstversions.awk \
$(common-objpfx)soversions.i \
$(common-objpfx)Versions.def.v
- { while read which lib version setname; do \
- test x"$$which" = xDEFAULT || continue; \
+ { while read lib version setname; do \
test -z "$$setname" || echo "$$lib : $$setname"; \
done < $(word 2,$^); \
cat $(word 3,$^); \
} | LC_ALL=C $(AWK) -f $< > $@T
mv -f $@T $@
# See %.v/%.v.i implicit rules in Makeconfig.
-$(common-objpfx)Versions.v.i: $(wildcard $(subdirs:%=$(..)%/Versions)) \
+$(common-objpfx)Versions.v.i: $(wildcard $(all-subdirs:%=$(..)%/Versions)) \
$(wildcard $(sysdirs:%=%/Versions)) \
$(common-objpfx)abi-versions.h \
$(sysd-versions-force)
$(common-objpfx)sysd-versions: $(common-objpfx)Versions.all \
$(common-objpfx)Versions.v \
$(..)scripts/versions.awk
- ( echo 'sysd-versions-subdirs = $(subdirs) $(config-sysdirs)' ; \
+ ( echo 'sysd-versions-subdirs = $(all-subdirs) $(config-sysdirs)' ; \
cat $(word 2,$^) \
| LC_ALL=C $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \
-v move_if_change='$(move-if-change)' \
@@ -367,11 +368,9 @@ compile-mkdep-flags = -MD -MP -MF $@.dt -MT $@
compile-command.S = $(compile.S) $(OUTPUT_OPTION) $(compile-mkdep-flags)
compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION) $(compile-mkdep-flags)
compile-command.c = $(compile.c) $(OUTPUT_OPTION) $(compile-mkdep-flags)
-compile-command.cc = $(compile.cc) $(OUTPUT_OPTION) $(compile-mkdep-flags)
# GCC can grok options after the file name, and it looks nicer that way.
compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
-compile.cc = $(CXX) $< -c $(CXXFLAGS) $(CPPFLAGS)
compile.S = $(CC) $< -c $(CPPFLAGS) $(S-CPPFLAGS) \
$(ASFLAGS) $(ASFLAGS-$(suffix $@))
COMPILE.S = $(CC) -c $(CPPFLAGS) $(S-CPPFLAGS) \
@@ -487,18 +486,12 @@ $(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
-Wl,--verbose 2>&1 | \
sed > $@T \
-e '/^=========/,/^=========/!d;/^=========/d' \
- $(if $(filter yes,$(have-hash-style)), \
- -e 's/^.*\.gnu\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
- -e '/^[ ]*\.hash[ ]*:.*$$/{h;d;}' \
- -e '/DATA_SEGMENT_ALIGN/{H;g}' \
- , \
- -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
- ) \
+ -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
-e 's/^.*\*(\.dynbss).*$$/& \
PROVIDE(__start___libc_freeres_ptrs = .); \
*(__libc_freeres_ptrs) \
PROVIDE(__stop___libc_freeres_ptrs = .);/'\
- -e 's@^.*\*(\.jcr).*$$@& \
+ -e 's/^.*\*(\.jcr).*$$/& \
PROVIDE(__start___libc_subfreeres = .);\
__libc_subfreeres : { *(__libc_subfreeres) }\
PROVIDE(__stop___libc_subfreeres = .);\
@@ -507,8 +500,7 @@ $(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
PROVIDE(__stop___libc_atexit = .);\
PROVIDE(__start___libc_thread_subfreeres = .);\
__libc_thread_subfreeres : { *(__libc_thread_subfreeres) }\
- PROVIDE(__stop___libc_thread_subfreeres = .);\
- /DISCARD/ : { *(.gnu.glibc-stub.*) }@'
+ PROVIDE(__stop___libc_thread_subfreeres = .);/'
mv -f $@T $@
common-generated += shlib.lds
@@ -558,11 +550,6 @@ define build-module
$(build-module-helper) -o $@ -T $(common-objpfx)shlib.lds \
$(csu-objpfx)abi-note.o $(build-module-objlist)
endef
-define build-module-asneeded
-$(build-module-helper) -o $@ -T $(common-objpfx)shlib.lds \
- $(csu-objpfx)abi-note.o \
- -Wl,--as-needed $(build-module-objlist) -Wl,--no-as-needed
-endef
else
ifneq (,$(findstring aix,$(config-os)))
define build-module
@@ -676,25 +663,18 @@ include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
endif
-# The makefile may define $(modules-names) to build additional modules.
-# These are built with $(build-module), except any in $(modules-names-nobuild).
+# The makefile may define $(modules-names) # to build additional
+# modules.
ifdef modules-names
# extra-lib.mk is included once for each extra lib to define rules
# to build it, and to add its objects to the various variables.
# During its evaluation, $(lib) is set to the name of the library.
extra-modules-left := $(modules-names)
include $(patsubst %,$(..)extra-modules.mk,$(modules-names))
-
-extra-modules-build := $(filter-out $(modules-names-nobuild),$(modules-names))
-$(extra-modules-build:%=$(objpfx)%.so): $(objpfx)%.so: \
- $(objpfx)%.os $(common-objpfx)shlib.lds \
- $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
- $(build-module)
endif
+depfiles := $(sources:.c=.d) \
$(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
- $(patsubst %.o,%.d,$(filter %.o,$(extra-test-objs:.os=.o))) \
$(addsuffix .d,$(tests) $(xtests) $(test-srcs))
ifeq ($(build-programs),yes)
+depfiles += $(addsuffix .d,$(others) $(sysdep-others))
@@ -990,7 +970,7 @@ $(inst_libdir)/libc.so: $(common-objpfx)format.lds \
cat $<; \
echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
'$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
- ' AS_NEEDED (' $(slibdir)/$(rtld-installed-name) ') )' \
+ ')' \
) > $@.new
mv -f $@.new $@
@@ -1113,21 +1093,8 @@ $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
endif
headers := $(strip $(headers))
ifdef headers
-# This implicit rule installs headers from the source directory.
-# It may be ignored in preference to rules from sysd-rules to find
-# headers in the sysdeps tree.
-$(inst_includedir)/%.h: $(objpfx)%.h $(+force)
+$(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
$(do-install)
-$(inst_includedir)/%.h: %.h $(+force)
- $(do-install)
-$(inst_includedir)/%.h: $(..)include/%.h $(+force)
- $(do-install)
-headers-nonh := $(filter-out %.h,$(headers))
-ifdef headers-nonh
-$(addprefix $(inst_includedir)/,$(headers-nonh)): $(inst_includedir)/%: \
- % $(+force)
- $(do-install)
-endif # headers-nonh
endif # headers
.PHONY: install-bin-nosubdir install-bin-script-nosubdir \
@@ -1193,9 +1160,9 @@ xcheck: xtests
all-nonlib = $(strip $(tests) $(xtests) $(test-srcs) $(test-extras) $(others))
ifneq (,$(all-nonlib))
-cpp-srcs-left = $(all-nonlib:=.c) $(all-nonlib:=.cc)
+cpp-srcs-left = $(all-nonlib:=.c)
lib := nonlib
-include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
+include $(patsubst %,$(..)cppflags-iterator.mk,$(all-nonlib))
endif
# The include magic above causes those files to use this variable for flags.
@@ -1294,12 +1261,18 @@ endif
endif
-# These will have been set by sysdeps/posix/Makefile.
-L_tmpnam ?= 1
-TMP_MAX ?= 0
-L_ctermid ?= 1
-L_cuserid ?= 1
-
+# There's no good place to put this - here will do.
+ifeq ($(filter %posix, $(sysdirs)),)
+L_tmpnam = 1
+TMP_MAX = 0
+L_ctermid = 1
+L_cuserid = 1
+else
+L_tmpnam = 20
+TMP_MAX = 238328
+L_ctermid = 9
+L_cuserid = 9
+endif
stdio_lim = $(common-objpfx)bits/stdio_lim.h
$(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
@@ -1342,8 +1315,15 @@ ifndef no_deps
endif
common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st
+.PHONY: TAGS
+TAGS: $(objpfx)distinfo $(..)MakeTAGS
+ $(MAKE) $(addprefix -f ,$^) $@
+
+$(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
+ $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
FORCE:
+
.PHONY: echo-headers
echo-headers:
@echo $(headers)
@@ -1376,8 +1356,8 @@ common-mostlyclean:
$(test-srcs)) \
$(addsuffix -bp.out,$(tests) $(xtests) \
$(test-srcs)))
- -rm -f $(addprefix $(objpfx),$(extra-objs) $(extra-test-objs) \
- $(install-lib) $(install-lib.so) \
+ -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
+ $(install-lib.so) \
$(install-lib.so:%.so=%_pic.a))
-rm -f core
-rm -f $(objpfx)rtld-*.os
@@ -1393,6 +1373,7 @@ common-clean: common-mostlyclean
-rm -f $(objpfx)*.d $(objpfx)*.dt
-rm -fr $(addprefix $(objpfx),$(generated-dirs))
-rm -f $(addprefix $(common-objpfx),$(common-generated))
+ -rm -f $(objpfx)distinfo
# Produce a file `stubs' which contains `#define __stub_FUNCTION'
# for each function which is a stub. We grovel over all the .d files
@@ -1403,20 +1384,44 @@ ifdef objpfx
.PHONY: stubs # The parent Makefile calls this target.
stubs: $(objpfx)stubs
endif
-objs-for-stubs := $(foreach o,$(object-suffixes-for-libc),$(o-objects)) \
- $(addprefix $(objpfx),$(extra-objs))
-$(objpfx)stubs: $(objs-for-stubs)
-ifneq (,$(strip $(objs-for-stubs)))
- (cd $(objpfx).; $(OBJDUMP) -h $(patsubst $(objpfx)%,%,$^)) | \
- $(AWK) '/\.gnu\.glibc-stub\./ { \
- sub(/\.gnu\.glibc-stub\./, "", $$2); \
- stubs[$$2] = 1; } \
- END { for (s in stubs) print "#define __stub_" s }' > $@T
+$(objpfx)stubs: $(+depfiles)
+ifneq (,$(strip $(+depfiles)))
+# Use /dev/null since `...` might expand to empty.
+ c=`($(patsubst %/,cd % &&,$(objpfx)) \
+ sed -n -e 's@\$$(common-objpfx)@$(common-objpfx)@g' \
+ -e 's@\$$(objpfx)@$(objpfx)@g' \
+ -e '/stub-tag\.h/{; g; s/./&/p; }' \
+ -e '/:/{x; s/^.*$$//; x; }' \
+ -e 's/^.*://;s/\\$$//;s/^ *\([^ ][^ ]*\) .*$$/\1/' \
+ -e '/^[^ ][^ ]*$$/{G;s/^.*\n\(..*\)/\1/;s/\n//;h; }' \
+ $(patsubst $(objpfx)%,%,$^)) | sort | uniq`; \
+ sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
+ $$c /dev/null > $@T
mv -f $@T $@
else
> $@
endif
+# This information is not used for making distributions any more.
+# But it's used by MakeTAGS for making TAGS files and the .pot files.
+$(objpfx)distinfo: Makefile $(..)Makerules \
+ $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
+ $(make-target-directory)
+ $(distinfo-vars)
+ mv -f $@.new $@
+
+define distinfo-vars
+rm -f $@.new
+echo > $@.new 'subdir := $(subdir)'
+$(foreach var,subdir-dirs sources elided-routines sysdep_routines \
+ headers sysdep_headers distribute dont_distribute generated \
+ others tests xtests test-srcs extra-libs versioned \
+ $(extra-libs:%=%-routines) \
+ $(addprefix install-,lib lib.so data bin bin-script sbin others),
+echo >> $@.new '$(subdir)-$(var) := $($(var))'
+echo >> $@.new '$(var) = $$($(subdir)-$(var))')
+endef
+
ifneq (,$(strip $(gpl2lgpl)))
ifneq (,$(wildcard $(..)gpl2lgpl.sed))
# Snarf from the master source and frob the copying notice.