From 4a2939f99712ba0990758f7ab3616fcdc89c756d Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Fri, 11 Apr 2003 23:34:00 +0000
Subject: 2003-04-11  Roland McGrath  <roland@redhat.com>

	* Makefile (multidir): Don't set the variable here with $(shell ...).
	($(objpfx)multidir.mk): New target, generated makefile; include that.
	(generated): Append it.
2003-04-10  Jakub Jelinek  <jakub@redhat.com>

	* Makefile (multidir, crti-objs, crtn-objs): New variables.
	(generated-dirs): Add pathname component of multidir.
	(omit-deps, extra-objs): Include $(multidir)/crt? as well.
	($(objpfx)libpthread.so): Depend on $(multidir)/crt?.o as well.
	($(objpfx)$(multidir), $(objpfx)$(multidir)/crti.o,
	$(objpfx)$(multidir)/crtn.o): New.
	* sysdeps/unix/sysv/linux/sparc/Makefile: Removed.
	* sysdeps/unix/sysv/linux/x86_64/Makefile (LDFLAGS-pthread.so,
	before-compile, generated): Don't generate and use specs.
	($(objpfx)specs): Remove.
---
 linuxthreads/Makefile | 36 ++++++++++++++++++++++++++++++++----
 1 file changed, 32 insertions(+), 4 deletions(-)

diff --git a/linuxthreads/Makefile b/linuxthreads/Makefile
index 7c4f580..d832074 100644
--- a/linuxthreads/Makefile
+++ b/linuxthreads/Makefile
@@ -79,7 +79,24 @@ $(objpfx)libpthread_nonshared.a: $(addprefix $(objpfx),$(addsuffix .os,$(libpthr
 
 ifeq ($(build-shared),yes)
 
-extra-objs += crti.o crtn.o
+# Set the `multidir' variable by grabbing the variable from the compiler.
+# We do it once and save the result in a generated makefile.
+-include $(objpfx)multidir.mk
+$(objpfx)multidir.mk: $(common-objpfx)config.make
+	dir=`$(CC) $(CFLAGS) $(CPPFLAGS) -print-multi-directory`; \
+	echo "multidir := $$dir" > $@T
+	mv -f $@T $@
+generated += multidir.mk
+
+crti-objs := crti.o
+crtn-objs := crtn.o
+ifneq (,$(patsubst .,,$(multidir)))
+generated-dirs := $(firstword $(subst /, , $(multidir)))
+crti-objs += $(multidir)/crti.o
+crtn-objs += $(multidir)/crtn.o
+omit-deps += $(multidir)/crti $(multidir)/crtn
+endif
+extra-objs += $(crti-objs) $(crtn-objs)
 omit-deps += crti crtn
 
 CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions
@@ -132,9 +149,9 @@ $(inst_libdir)/libpthread_nonshared.a: $(objpfx)libpthread_nonshared.a
 
 
 extra-B-pthread.so = -B$(common-objpfx)linuxthreads/
-$(objpfx)libpthread.so: $(objpfx)crti.o $(objpfx)crtn.o
-$(objpfx)libpthread.so: +preinit += $(objpfx)crti.o
-$(objpfx)libpthread.so: +postinit += $(objpfx)crtn.o
+$(objpfx)libpthread.so: $(addprefix $(objpfx),$(crti-objs) $(crtn-objs))
+$(objpfx)libpthread.so: +preinit += $(addprefix $(objpfx),$(crti-objs))
+$(objpfx)libpthread.so: +postinit += $(addprefix $(objpfx),$(crtn-objs))
 
 znodelete-yes = -DHAVE_Z_NODELETE
 CFLAGS-mutex.c += -D__NO_WEAK_PTHREAD_ALIASES
@@ -249,6 +266,17 @@ $(objpfx)crti.o: $(objpfx)crti.S $(objpfx)defs.h
 $(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h
 	$(compile.S) -g0 $(ASFLAGS-.os) -o $@
 
+ifneq ($(multidir),.)
+$(objpfx)$(multidir):
+	@mkdir -p $(objpfx)$(multidir)
+
+$(objpfx)$(multidir)/crti.o: $(objpfx)crti.o $(objpfx)$(multidir)
+	ln -f $< $@
+
+$(objpfx)$(multidir)/crtn.o: $(objpfx)crtn.o $(objpfx)$(multidir)
+	ln -f $< $@
+endif
+
 generated += crti.S crtn.S defs.h pt-initfini.s
 endif
 
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