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Date: Fri, 1 May 1998 11:44:07 -0400
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From: Ian Lance Taylor <ian@cygnus.com>
To: peter.jeremy@alcatel.com.au
CC: bug-gnu-utils@gnu.org, freebsd-ports@FreeBSD.ORG
In-reply-to: <199805010017.KAA12929@gsms01.alcatel.com.au> (message from Peter
	Jeremy on Fri, 01 May 1998 10:17:07 +1000 (EST))
Subject: Re: Circular dependency in libiberty
Sender: owner-freebsd-ports@FreeBSD.ORG
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   Date: Fri, 01 May 1998 10:17:07 +1000 (EST)
   From: Peter Jeremy <peter.jeremy@alcatel.com.au>

   When building libiberty as part of either binutils 2.9 or gdb 4.17 with
   a FreeBSD 2.x host, gnu make (3.76.1) successfully builds libiberty.a,
   but reports a circular dependency.  Running gnu make in the libiberty
   directory after the library is successfully built gives:
   pc0640% gmake
   gmake[1]: Entering directory `/usr/users/jeremyp/src/binutils/libiberty'
   gmake[1]: Circular vasprintf.o <- config.h dependency dropped.
   gmake[1]: Leaving directory `/usr/users/jeremyp/src/binutils/libiberty'
   pc0640% 

   The standard FreeBSD 2.2.5 make is unable to handle the circular
   dependency and exits without building the library.

Thanks for the bug report.  I think the appended patch to
libiberty/Makefile.in will avoid the problem.

Ian

Index: Makefile.in
===================================================================
RCS file: /cvs/cvsfiles/devo/libiberty/Makefile.in,v
retrieving revision 1.135
retrieving revision 1.136
diff -u -r1.135 -r1.136
--- Makefile.in	1998/01/14 02:43:04	1.135
+++ Makefile.in	1998/05/01 15:43:14	1.136
@@ -252,8 +252,6 @@
 required-list: Makefile
 	echo $(REQUIRED_OFILES) > required-list
 
-$(HOST_OFILES) $(REQUIRED_OFILES) : config.h
-
 RULE1 = $(TARGETLIB)
 $(RULE1): $(REQUIRED_OFILES) $(DO_ALSO) .always.
 	@$(MAKE) RULE1=not-used RULE2=$(TARGETLIB) $(FLAGS_TO_PASS) \
@@ -312,25 +310,27 @@
 Makefile: $(srcdir)/Makefile.in $(host_makefile_frag) $(target_makefile_frag)
 	$(SHELL) ./config.status
 
+alloca.o: config.h
 argv.o: $(INCDIR)/libiberty.h
-basename.o: $(INCDIR)/libiberty.h
+basename.o: config.h $(INCDIR)/libiberty.h
+choose-temp.o: config.h
 concat.o: $(INCDIR)/libiberty.h
 cplus-dem.o: $(INCDIR)/demangle.h
 fdmatch.o: $(INCDIR)/libiberty.h
-fnmatch.o: $(INCDIR)/fnmatch.h
-getopt.o: $(INCDIR)/getopt.h
-getopt1.o: $(INCDIR)/getopt.h
+fnmatch.o: config.h $(INCDIR)/fnmatch.h
+getopt.o: config.h $(INCDIR)/getopt.h
+getopt1.o: config.h $(INCDIR)/getopt.h
 getruntime.o: $(INCDIR)/libiberty.h
 hex.o: $(INCDIR)/libiberty.h
 floatformat.o: $(INCDIR)/floatformat.h
 objalloc.o: $(INCDIR)/objalloc.h
 obstack.o: $(INCDIR)/obstack.h
-pexecute.o: $(INCDIR)/libiberty.h
+pexecute.o: config.h $(INCDIR)/libiberty.h
 spaces.o: $(INCDIR)/libiberty.h
-strerror.o: $(INCDIR)/libiberty.h
-strsignal.o: $(INCDIR)/libiberty.h
+strerror.o: config.h $(INCDIR)/libiberty.h
+strsignal.o: config.h $(INCDIR)/libiberty.h
 xatexit.o: $(INCDIR)/libiberty.h
 xexit.o: $(INCDIR)/libiberty.h
 xmalloc.o: $(INCDIR)/libiberty.h
 xstrdup.o: $(INCDIR)/libiberty.h
-xstrerror.o: $(INCDIR)/libiberty.h
+xstrerror.o: config.h $(INCDIR)/libiberty.h

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