* Makefile.am, Makefile.in: irix_threads.c is now

        hpux_irix_threads.c.
        * Makefile.orig: Updated from gc distribution Makefile.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@33255 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 145 insertions, 73 deletions

diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index 6831e8dfb44..6f27b76aaf9 100644
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -5,6 +5,9 @@
 	* configure.in: Don't use alpha_mach_dep.s.
 	* include/private/config.h, irix_threads.c gc_watcom.asm: Delete 
 	obsolete files.
+	* Makefile.am, Makefile.in: irix_threads.c is now
+	hpux_irix_threads.c.
+	* Makefile.orig: Updated from gc distribution Makefile.
 
 2000-03-26  Anthony Green  <green@redhat.com>
 
diff --git a/boehm-gc/Makefile.am b/boehm-gc/Makefile.am
index 2f36a0fdefd..f4839819bf4 100644
--- a/boehm-gc/Makefile.am
+++ b/boehm-gc/Makefile.am
@@ -28,7 +28,7 @@ EXTRA_LTLIBRARIES = libgcjgc.la
 libgcjgc_la_SOURCES = allchblk.c alloc.c blacklst.c checksums.c	\
 gcconfig.h dbg_mlc.c dyn_load.c finalize.c gc.h gc_alloc.h gc_cpp.h \
 gc_hdrs.h gc_mark.h gc_priv.h gc_private.h gc_typed.h headers.c	\
-irix_threads.c linux_threads.c malloc.c mallocx.c mark.c mark_rts.c \
+hpux_irix_threads.c linux_threads.c malloc.c mallocx.c mark.c mark_rts.c \
 misc.c new_hblk.c obj_map.c os_dep.c pcr_interface.c ptr_chck.c	\
 real_malloc.c reclaim.c solaris_pthreads.c solaris_threads.c \
 solaris_threads.h stubborn.c typd_mlc.c version.h weakpointer.h
diff --git a/boehm-gc/Makefile.in b/boehm-gc/Makefile.in
index 5ea20d8a5cf..fb671a9e4b0 100644
--- a/boehm-gc/Makefile.in
+++ b/boehm-gc/Makefile.in
@@ -111,7 +111,7 @@ EXTRA_LTLIBRARIES = libgcjgc.la
 libgcjgc_la_SOURCES = allchblk.c alloc.c blacklst.c checksums.c	\
 gcconfig.h dbg_mlc.c dyn_load.c finalize.c gc.h gc_alloc.h gc_cpp.h \
 gc_hdrs.h gc_mark.h gc_priv.h gc_private.h gc_typed.h headers.c	\
-irix_threads.c linux_threads.c malloc.c mallocx.c mark.c mark_rts.c \
+hpux_irix_threads.c linux_threads.c malloc.c mallocx.c mark.c mark_rts.c \
 misc.c new_hblk.c obj_map.c os_dep.c pcr_interface.c ptr_chck.c	\
 real_malloc.c reclaim.c solaris_pthreads.c solaris_threads.c \
 solaris_threads.h stubborn.c typd_mlc.c version.h weakpointer.h
@@ -199,7 +199,7 @@ CPPFLAGS = @CPPFLAGS@
 LDFLAGS = @LDFLAGS@
 LIBS = @LIBS@
 libgcjgc_la_OBJECTS =  allchblk.lo alloc.lo blacklst.lo checksums.lo \
-dbg_mlc.lo dyn_load.lo finalize.lo headers.lo irix_threads.lo \
+dbg_mlc.lo dyn_load.lo finalize.lo headers.lo hpux_irix_threads.lo \
 linux_threads.lo malloc.lo mallocx.lo mark.lo mark_rts.lo misc.lo \
 new_hblk.lo obj_map.lo os_dep.lo pcr_interface.lo ptr_chck.lo \
 real_malloc.lo reclaim.lo solaris_pthreads.lo solaris_threads.lo \
diff --git a/boehm-gc/Makefile.orig b/boehm-gc/Makefile.orig
index 056df2f66f7..d3a3482d25b 100644
--- a/boehm-gc/Makefile.orig
+++ b/boehm-gc/Makefile.orig
@@ -7,33 +7,39 @@
 #      	 and runs some tests of collector and cords.  Does not add cords or
 #	 c++ interface to gc.a
 # cord/de - builds dumb editor based on cords.
-ABI_FLAG=
+ABI_FLAG= 
 CC=cc $(ABI_FLAG)
-CXX=CC $(ABI_FLAG)
+HOSTCC=$(CC)
+CXX=g++ $(ABI_FLAG)
 AS=as $(ABI_FLAG)
 #  The above doesn't work with gas, which doesn't run cpp.
 #  Define AS as `gcc -c -x assembler-with-cpp' instead.
-#  Under Irix 6, you will have to specify the ABI for as if you specify
-#  it for the C compiler.
+#  Under Irix 6, you will have to specify the ABI (-o32, -n32, or -64)
+#  if you use something other than the default ABI on your machine.
 
-CFLAGS= -O -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DNO_EXECUTE_PERMISSION -DSILENT
+CFLAGS= -O -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DNO_EXECUTE_PERMISSION -DALL_INTERIOR_POINTERS -DSILENT
+
+# For dynamic library builds, it may be necessary to add flags to generate
+# PIC code, e.g. -fPIC on Linux.
 
 # Setjmp_test may yield overly optimistic results when compiled
 # without optimization.
 # -DSILENT disables statistics printing, and improves performance.
-# -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
-#   altered stubborn objects, at substantial performance cost.
-#   Use only for incremental collector debugging.
-# -DFIND_LEAK causes the collector to assume that all inaccessible
+# -DFIND_LEAK causes GC_find_leak to be initially set.
+#   This causes the collector to assume that all inaccessible
 #   objects should have been explicitly deallocated, and reports exceptions.
 #   Finalization and the test program are not usable in this mode.
 # -DSOLARIS_THREADS enables support for Solaris (thr_) threads.
 #   (Clients should also define SOLARIS_THREADS and then include
 #   gc.h before performing thr_ or dl* or GC_ operations.)
-#   Must also define -D_REENTRANT
+#   Must also define -D_REENTRANT.
 # -D_SOLARIS_PTHREADS enables support for Solaris pthreads.
 #   Define SOLARIS_THREADS as well.
 # -DIRIX_THREADS enables support for Irix pthreads.  See README.irix.
+# -DHPUX_THREADS enables support for HP/UX 11 pthreads.
+#  Also requires -D_REENTRANT. See README.hp.
+# -DLINUX_THREADS enables support for Xavier Leroy's Linux threads.
+#   see README.linux.  -D_REENTRANT may also be required.
 # -DALL_INTERIOR_POINTERS allows all pointers to the interior
 #   of objects to be recognized.  (See gc_priv.h for consequences.)
 # -DSMALL_CONFIG tries to tune the collector for small heap sizes,
@@ -53,6 +59,8 @@ CFLAGS= -O -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DNO_EXEC
 #   implementations, and it sometimes has a significant performance
 #   impact.  However, it is dangerous for many not-quite-ANSI C
 #   programs that call things like printf in asynchronous signal handlers.
+#   This is on by default.  Turning it off has not been extensively tested with
+#   compilers that reorder stores.  It should have been.
 # -DNO_EXECUTE_PERMISSION may cause some or all of the heap to not
 #   have execute permission, i.e. it may be impossible to execute
 #   code from the heap.  Currently this only affects the incremental
@@ -80,9 +88,12 @@ CFLAGS= -O -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DNO_EXEC
 #   finalize.c).  Objects reachable from finalizable objects will be marked
 #   in a sepearte postpass, and hence their memory won't be reclaimed.
 #   Not recommended unless you are implementing a language that specifies
-#   these semantics.
+#   these semantics.  Since 5.0, determines only only the initial value
+#   of GC_java_finalization variable.
 # -DFINALIZE_ON_DEMAND causes finalizers to be run only in response
 #   to explicit GC_invoke_finalizers() calls.
+#   In 5.0 this became runtime adjustable, and this only determines the
+#   initial value of GC_finalize_on_demand.
 # -DATOMIC_UNCOLLECTABLE includes code for GC_malloc_atomic_uncollectable.
 #   This is useful if either the vendor malloc implementation is poor,
 #   or if REDIRECT_MALLOC is used.
@@ -93,6 +104,10 @@ CFLAGS= -O -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DNO_EXEC
 #   fragmentation, but generally better performance for large heaps.
 # -DUSE_MMAP use MMAP instead of sbrk to get new memory.
 #   Works for Solaris and Irix.
+# -DUSE_MUNMAP causes memory to be returned to the OS under the right
+#   circumstances.  This currently disables VM-based incremental collection.
+#   This is currently experimental, and works only under some Unix and
+#   Linux versions.
 # -DMMAP_STACKS (for Solaris threads) Use mmap from /dev/zero rather than
 #   GC_scratch_alloc() to get stack memory.
 # -DPRINT_BLACK_LIST Whenever a black list entry is added, i.e. whenever
@@ -100,14 +115,41 @@ CFLAGS= -O -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DNO_EXEC
 #   like a pointer, print both the address containing the value, and the
 #   value of the near-bogus-pointer.  Can be used to identifiy regions of
 #   memory that are likely to contribute misidentified pointers.
-# -DOLD_BLOCK_ALLOC Use the old, possibly faster, large block
-#   allocation strategy.  The new strategy tries harder to minimize
-#   fragmentation, sometimes at the expense of spending more time in the
-#   large block allocator and/or collecting more frequently.
+# -DKEEP_BACK_PTRS Add code to save back pointers in debugging headers
+#   for objects allocated with the debugging allocator.  If all objects
+#   through GC_MALLOC with GC_DEBUG defined, this allows the client
+#   to determine how particular or randomly chosen objects are reachable
+#   for debugging/profiling purposes.  The backptr.h interface is
+#   implemented only if this is defined.
+# -DGC_ASSERTIONS Enable some internal GC assertion checking.  Currently
+#   this facility is only used in a few places.  It is intended primarily
+#   for debugging of the garbage collector itself, but could also
+#   occasionally be useful for debugging of client code.  Slows down the
+#   collector somewhat, but not drastically.
+# -DCHECKSUMS reports on erroneously clear dirty bits, and unexpectedly
+#   altered stubborn objects, at substantial performance cost.
+#   Use only for debugging of the incremental collector.
+# -DGC_GCJ_SUPPORT includes support for gcj (and possibly other systems
+#   that include a pointer to a type descriptor in each allocated object).
+#   Building this way requires an ANSI C compiler.
+# -DUSE_I686_PREFETCH causes the collector to issue Pentium III style
+#   prefetch instructions.  No effect except on X86 Linux platforms.
+#   Assumes a very recent gcc-compatible compiler and assembler.
+#   (Gas prefetcht0 support was added around May 1999.)
+#   Empirically the code appears to still run correctly on Pentium II
+#   processors, though with no performance benefit.  May not run on other
+#   X86 processors?  In some cases this improves performance by
+#   15% or so.
+# -DUSE_3DNOW_PREFETCH causes the collector to issue AMD 3DNow style
+#   prefetch instructions.  Same restrictions as USE_I686_PREFETCH.
+#   UNTESTED!!
+# -DUSE_LD_WRAP in combination with the gld flags listed in README.linux
+#   causes the collector some system and pthread calls in a more transparent
+#   fashion than the usual macro-based approach.  Requires GNU ld, and
+#   currently probably works only with Linux.
 #
 
 
-
 LIBGC_CFLAGS= -O -DNO_SIGNALS -DSILENT \
     -DREDIRECT_MALLOC=GC_malloc_uncollectable \
     -DDONT_ADD_BYTE_AT_END -DALL_INTERIOR_POINTERS
@@ -124,9 +166,9 @@ RANLIB= ranlib
 srcdir = .
 VPATH = $(srcdir)
 
-OBJS= alloc.o reclaim.o allchblk.o misc.o mach_dep.o os_dep.o mark_rts.o headers.o mark.o obj_map.o blacklst.o finalize.o new_hblk.o dbg_mlc.o malloc.o stubborn.o checksums.o solaris_threads.o irix_threads.o linux_threads.o typd_mlc.o ptr_chck.o mallocx.o solaris_pthreads.o
+OBJS= alloc.o reclaim.o allchblk.o misc.o mach_dep.o os_dep.o mark_rts.o headers.o mark.o obj_map.o blacklst.o finalize.o new_hblk.o dbg_mlc.o malloc.o stubborn.o checksums.o solaris_threads.o hpux_irix_threads.o linux_threads.o typd_mlc.o ptr_chck.o mallocx.o solaris_pthreads.o gcj_mlc.o
 
-CSRCS= reclaim.c allchblk.c misc.c alloc.c mach_dep.c os_dep.c mark_rts.c headers.c mark.c obj_map.c pcr_interface.c blacklst.c finalize.c new_hblk.c real_malloc.c dyn_load.c dbg_mlc.c malloc.c stubborn.c checksums.c solaris_threads.c irix_threads.c linux_threads.c typd_mlc.c ptr_chck.c mallocx.c solaris_pthreads.c
+CSRCS= reclaim.c allchblk.c misc.c alloc.c mach_dep.c os_dep.c mark_rts.c headers.c mark.c obj_map.c pcr_interface.c blacklst.c finalize.c new_hblk.c real_malloc.c dyn_load.c dbg_mlc.c malloc.c stubborn.c checksums.c solaris_threads.c hpux_irix_threads.c linux_threads.c typd_mlc.c ptr_chck.c mallocx.c solaris_pthreads.c gcj_mlc.c
 
 CORD_SRCS=  cord/cordbscs.c cord/cordxtra.c cord/cordprnt.c cord/de.c cord/cordtest.c cord/cord.h cord/ec.h cord/private/cord_pos.h cord/de_win.c cord/de_win.h cord/de_cmds.h cord/de_win.ICO cord/de_win.RC cord/SCOPTIONS.amiga cord/SMakefile.amiga
 
@@ -134,18 +176,20 @@ CORD_OBJS=  cord/cordbscs.o cord/cordxtra.o cord/cordprnt.o
 
 SRCS= $(CSRCS) mips_sgi_mach_dep.s rs6000_mach_dep.s alpha_mach_dep.s \
     sparc_mach_dep.s gc.h gc_typed.h gc_hdrs.h gc_priv.h gc_private.h \
-    config.h gc_mark.h include/gc_inl.h include/gc_inline.h gc.man \
+    gcconfig.h gc_mark.h include/gc_inl.h include/gc_inline.h gc.man \
     threadlibs.c if_mach.c if_not_there.c gc_cpp.cc gc_cpp.h weakpointer.h \
     gcc_support.c mips_ultrix_mach_dep.s include/gc_alloc.h gc_alloc.h \
-    sparc_sunos4_mach_dep.s solaris_threads.h $(CORD_SRCS)
+    include/new_gc_alloc.h include/javaxfc.h sparc_sunos4_mach_dep.s \
+    solaris_threads.h backptr.h hpux_test_and_clear.s include/gc_gcj.h \
+    dbg_mlc.h $(CORD_SRCS)
 
 OTHER_FILES= Makefile PCR-Makefile OS2_MAKEFILE NT_MAKEFILE BCC_MAKEFILE \
            README test.c test_cpp.cc setjmp_t.c SMakefile.amiga \
            SCoptions.amiga README.amiga README.win32 cord/README \
            cord/gc.h include/gc.h include/gc_typed.h include/cord.h \
-           include/ec.h include/private/cord_pos.h include/private/config.h \
+           include/ec.h include/private/cord_pos.h include/private/gcconfig.h \
            include/private/gc_hdrs.h include/private/gc_priv.h \
-	   include/gc_cpp.h README.rs6000 \
+	   include/gc_cpp.h README.rs6000 include/backptr.h \
            include/weakpointer.h README.QUICK callprocs pc_excludes \
            barrett_diagram README.OS2 README.Mac MacProjects.sit.hqx \
            MacOS.c EMX_MAKEFILE makefile.depend README.debugging \
@@ -153,8 +197,9 @@ OTHER_FILES= Makefile PCR-Makefile OS2_MAKEFILE NT_MAKEFILE BCC_MAKEFILE \
            Mac_files/MacOS_config.h Mac_files/MacOS_Test_config.h \
            add_gc_prefix.c README.solaris2 README.sgi README.hp README.uts \
 	   win32_threads.c NT_THREADS_MAKEFILE gc.mak README.dj Makefile.dj \
-	   README.alpha README.linux version.h Makefile.DLLs gc_watcom.asm \
-	   WCC_MAKEFILE
+	   README.alpha README.linux version.h Makefile.DLLs \
+	   WCC_MAKEFILE nursery.c include/gc_nursery.h include/gc_copy_descr.h \
+	   include/leak_detector.h
 
 CORD_INCLUDE_FILES= $(srcdir)/gc.h $(srcdir)/cord/cord.h $(srcdir)/cord/ec.h \
            $(srcdir)/cord/private/cord_pos.h
@@ -177,12 +222,12 @@ SPECIALCFLAGS =
 
 all: gc.a gctest
 
-pcr: PCR-Makefile gc_private.h gc_hdrs.h gc.h config.h mach_dep.o $(SRCS)
+pcr: PCR-Makefile gc_private.h gc_hdrs.h gc.h gcconfig.h mach_dep.o $(SRCS)
 	make -f PCR-Makefile depend
 	make -f PCR-Makefile
 
 $(OBJS) test.o dyn_load.o dyn_load_sunos53.o: $(srcdir)/gc_priv.h $(srcdir)/gc_hdrs.h $(srcdir)/gc.h \
-    $(srcdir)/config.h $(srcdir)/gc_typed.h Makefile
+    $(srcdir)/gcconfig.h $(srcdir)/gc_typed.h Makefile
 # The dependency on Makefile is needed.  Changing
 # options such as -DSILENT affects the size of GC_arrays,
 # invalidating all .o files that rely on gc_priv.h
@@ -191,28 +236,23 @@ mark.o typd_mlc.o finalize.o: $(srcdir)/gc_mark.h
 
 base_lib gc.a: $(OBJS) dyn_load.o $(UTILS)
 	echo > base_lib
-	rm -f on_sparc_sunos5
-	./if_mach SPARC SUNOS5 touch on_sparc_sunos5
+	rm -f dont_ar_1
+	./if_mach SPARC SUNOS5 touch dont_ar_1
 	./if_mach SPARC SUNOS5 $(AR) rus gc.a $(OBJS) dyn_load.o
-	./if_not_there on_sparc_sunos5 $(AR) ru gc.a $(OBJS) dyn_load.o
-	./if_not_there on_sparc_sunos5 $(RANLIB) gc.a || cat /dev/null
+	./if_mach M68K AMIGA touch dont_ar_1
+	./if_mach M68K AMIGA $(AR) -vrus gc.a $(OBJS) dyn_load.o
+	./if_not_there dont_ar_1 $(AR) ru gc.a $(OBJS) dyn_load.o
+	./if_not_there dont_ar_1 $(RANLIB) gc.a || cat /dev/null
 #	ignore ranlib failure; that usually means it doesn't exist, and isn't needed
 
-libgc.a: 
-	make CFLAGS="$(LIBGC_CFLAGS)" clean gc.a gcc_support.o
-	mv gc.a libgc.a
-	rm -f on_sparc_sunos5
-	./if_mach SPARC SUNOS5 touch on_sparc_sunos5
-	./if_mach SPARC SUNOS5 $(AR) rus libgc.a gcc_support.o
-	./if_not_there on_sparc_sunos5 $(AR) ru libgc.a gcc_support.o
-	./if_not_there on_sparc_sunos5 $(RANLIB) libgc.a || cat /dev/null
-
 cords: $(CORD_OBJS) cord/cordtest $(UTILS)
-	rm -f on_sparc_sunos5
-	./if_mach SPARC SUNOS5 touch on_sparc_sunos5
+	rm -f dont_ar_3
+	./if_mach SPARC SUNOS5 touch dont_ar_3
 	./if_mach SPARC SUNOS5 $(AR) rus gc.a $(CORD_OBJS)
-	./if_not_there on_sparc_sunos5 $(AR) ru gc.a $(CORD_OBJS)
-	./if_not_there on_sparc_sunos5 $(RANLIB) gc.a || cat /dev/null
+	./if_mach M68K AMIGA touch dont_ar_3
+	./if_mach M68K AMIGA $(AR) -vrus gc.a $(CORD_OBJS)
+	./if_not_there dont_ar_3 $(AR) ru gc.a $(CORD_OBJS)
+	./if_not_there dont_ar_3 $(RANLIB) gc.a || cat /dev/null
 
 gc_cpp.o: $(srcdir)/gc_cpp.cc $(srcdir)/gc_cpp.h $(srcdir)/gc.h Makefile
 	$(CXX) -c $(CXXFLAGS) $(srcdir)/gc_cpp.cc
@@ -220,15 +260,17 @@ gc_cpp.o: $(srcdir)/gc_cpp.cc $(srcdir)/gc_cpp.h $(srcdir)/gc.h Makefile
 test_cpp: $(srcdir)/test_cpp.cc $(srcdir)/gc_cpp.h gc_cpp.o $(srcdir)/gc.h \
 base_lib $(UTILS)
 	rm -f test_cpp
-	./if_mach HP_PA "" $(CXX) $(CXXFLAGS) -o test_cpp $(srcdir)/test_cpp.cc gc_cpp.o gc.a -ldld
+	./if_mach HP_PA HPUX $(CXX) $(CXXFLAGS) -o test_cpp $(srcdir)/test_cpp.cc gc_cpp.o gc.a -ldld `./threadlibs`
 	./if_not_there test_cpp $(CXX) $(CXXFLAGS) -o test_cpp $(srcdir)/test_cpp.cc gc_cpp.o gc.a `./threadlibs`
 
 c++: gc_cpp.o $(srcdir)/gc_cpp.h test_cpp
-	rm -f on_sparc_sunos5
-	./if_mach SPARC SUNOS5 touch on_sparc_sunos5
+	rm -f dont_ar_4
+	./if_mach SPARC SUNOS5 touch dont_ar_4
 	./if_mach SPARC SUNOS5 $(AR) rus gc.a gc_cpp.o
-	./if_not_there on_sparc_sunos5 $(AR) ru gc.a gc_cpp.o
-	./if_not_there on_sparc_sunos5 $(RANLIB) gc.a || cat /dev/null
+	./if_mach M68K AMIGA touch dont_ar_4
+	./if_mach M68K AMIGA $(AR) -vrus gc.a gc_cpp.o
+	./if_not_there dont_ar_4 $(AR) ru gc.a gc_cpp.o
+	./if_not_there dont_ar_4 $(RANLIB) gc.a || cat /dev/null
 	./test_cpp 1
 	echo > c++
 
@@ -236,8 +278,9 @@ dyn_load_sunos53.o: dyn_load.c
 	$(CC) $(CFLAGS) -DSUNOS53_SHARED_LIB -c $(srcdir)/dyn_load.c -o $@
 
 # SunOS5 shared library version of the collector
-libgc.so: $(OBJS) dyn_load_sunos53.o
-	$(CC) -G -o libgc.so $(OBJS) dyn_load_sunos53.o -ldl
+sunos5gc.so: $(OBJS) dyn_load_sunos53.o
+	$(CC) -G -o sunos5gc.so $(OBJS) dyn_load_sunos53.o -ldl
+	ln sunos5gc.so libgc.so
 
 # Alpha/OSF shared library version of the collector
 libalphagc.so: $(OBJS)
@@ -249,18 +292,42 @@ libirixgc.so: $(OBJS) dyn_load.o
 	ld -shared $(ABI_FLAG) -o libirixgc.so $(OBJS) dyn_load.o -lc
 	ln libirixgc.so libgc.so
 
+# Linux shared library version of the collector
+liblinuxgc.so: $(OBJS) dyn_load.o
+	gcc -shared -o liblinuxgc.so $(OBJS) dyn_load.o -lo
+	ln liblinuxgc.so libgc.so
+
+# Alternative Linux rule.  This is preferable, but is likely to break the
+# Makefile for some non-linux platforms.
+# LIBOBJS= $(patsubst %.o, %.lo, $(OBJS))
+#
+#.SUFFIXES: .lo $(SUFFIXES)
+#
+#.c.lo:
+#	$(CC) $(CFLAGS) $(CPPFLAGS) -fPIC -c $< -o $@
+#
+# liblinuxgc.so: $(LIBOBJS) dyn_load.lo
+# 	gcc -shared -Wl,-soname=libgc.so.0 -o libgc.so.0 $(LIBOBJS) dyn_load.lo
+#	touch liblinuxgc.so
+
 mach_dep.o: $(srcdir)/mach_dep.c $(srcdir)/mips_sgi_mach_dep.s $(srcdir)/mips_ultrix_mach_dep.s $(srcdir)/rs6000_mach_dep.s $(UTILS)
 	rm -f mach_dep.o
 	./if_mach MIPS IRIX5 $(AS) -o mach_dep.o $(srcdir)/mips_sgi_mach_dep.s
 	./if_mach MIPS RISCOS $(AS) -o mach_dep.o $(srcdir)/mips_ultrix_mach_dep.s
 	./if_mach MIPS ULTRIX $(AS) -o mach_dep.o $(srcdir)/mips_ultrix_mach_dep.s
 	./if_mach RS6000 "" $(AS) -o mach_dep.o $(srcdir)/rs6000_mach_dep.s
-	./if_mach ALPHA "" $(AS) -o mach_dep.o $(srcdir)/alpha_mach_dep.s
+#	./if_mach ALPHA "" $(AS) -o mach_dep.o $(srcdir)/alpha_mach_dep.s
+#	alpha_mach_dep.s assumes that pointers are not saved in fp registers.
+#	Gcc on a 21264 can spill pointers to fp registers.  Oops.
 	./if_mach SPARC SUNOS5 $(AS) -o mach_dep.o $(srcdir)/sparc_mach_dep.s
 	./if_mach SPARC SUNOS4 $(AS) -o mach_dep.o $(srcdir)/sparc_sunos4_mach_dep.s
+	./if_mach SPARC OPENBSD $(AS) -o mach_dep.o $(srcdir)/sparc_sunos4_mach_dep.s
+	./if_mach HP_PA HPUX $(AS) -o hpux_test_and_clear.o $(srcdir)/hpux_test_and_clear.s
+	./if_mach HP_PA HPUX $(CC) -c -o md_tmp.o $(SPECIALCFLAGS) $(srcdir)/mach_dep.c
+	./if_mach HP_PA HPUX ld -r -o mach_dep.o md_tmp.o hpux_test_and_clear.o
 	./if_not_there mach_dep.o $(CC) -c $(SPECIALCFLAGS) $(srcdir)/mach_dep.c
 
-mark_rts.o: $(srcdir)/mark_rts.c if_mach if_not_there $(UTILS)
+mark_rts.o: $(srcdir)/mark_rts.c $(UTILS)
 	rm -f mark_rts.o
 	-./if_mach ALPHA OSF1 $(CC) -c $(CFLAGS) -Wo,-notail $(srcdir)/mark_rts.c
 	./if_not_there mark_rts.o $(CC) -c $(CFLAGS) $(srcdir)/mark_rts.c
@@ -270,41 +337,43 @@ mark_rts.o: $(srcdir)/mark_rts.c if_mach if_not_there $(UTILS)
 alloc.o: version.h
 
 cord/cordbscs.o: $(srcdir)/cord/cordbscs.c $(CORD_INCLUDE_FILES)
-	$(CC) $(CFLAGS) -c $(srcdir)/cord/cordbscs.c
+	$(CC) $(CFLAGS) -c -I$(srcdir) $(srcdir)/cord/cordbscs.c
 	mv cordbscs.o cord/cordbscs.o
 #  not all compilers understand -o filename
 
 cord/cordxtra.o: $(srcdir)/cord/cordxtra.c $(CORD_INCLUDE_FILES)
-	$(CC) $(CFLAGS) -c $(srcdir)/cord/cordxtra.c
+	$(CC) $(CFLAGS) -c -I$(srcdir) $(srcdir)/cord/cordxtra.c
 	mv cordxtra.o cord/cordxtra.o
 
 cord/cordprnt.o: $(srcdir)/cord/cordprnt.c $(CORD_INCLUDE_FILES)
-	$(CC) $(CFLAGS) -c $(srcdir)/cord/cordprnt.c
+	$(CC) $(CFLAGS) -c -I$(srcdir) $(srcdir)/cord/cordprnt.c
 	mv cordprnt.o cord/cordprnt.o
 
 cord/cordtest: $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a $(UTILS)
 	rm -f cord/cordtest
 	./if_mach SPARC DRSNX $(CC) $(CFLAGS) -o cord/cordtest $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a -lucb
-	./if_mach HP_PA "" $(CC) $(CFLAGS) -o cord/cordtest $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a -ldld
+	./if_mach HP_PA HPUX $(CC) $(CFLAGS) -o cord/cordtest $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a -ldld `./threadlibs`
 	./if_not_there cord/cordtest $(CC) $(CFLAGS) -o cord/cordtest $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a `./threadlibs`
 
 cord/de: $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(UTILS)
 	rm -f cord/de
-	./if_mach SPARC DRSNX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES) -lucb
-	./if_mach HP_PA "" $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES) -ldld
+	./if_mach SPARC DRSNX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES) -lucb `./threadlibs`
+	./if_mach HP_PA HPUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES) -ldld `./threadlibs`
 	./if_mach RS6000 "" $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses
-	./if_mach I386 LINUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses
-	./if_mach ALPHA LINUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses
+	./if_mach I386 LINUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses `./threadlibs`
+	./if_mach ALPHA LINUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses `./threadlibs`
+	./if_mach IA64 LINUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses `./threadlibs`
+	./if_mach M68K AMIGA $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses
 	./if_not_there cord/de $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES) `./threadlibs`
 
-if_mach: $(srcdir)/if_mach.c $(srcdir)/config.h
-	$(CC) $(CFLAGS) -o if_mach $(srcdir)/if_mach.c
+if_mach: $(srcdir)/if_mach.c $(srcdir)/gcconfig.h
+	$(HOSTCC) $(CFLAGS) -o if_mach $(srcdir)/if_mach.c
 
-threadlibs: $(srcdir)/threadlibs.c $(srcdir)/config.h Makefile
-	$(CC) $(CFLAGS) -o threadlibs $(srcdir)/threadlibs.c
+threadlibs: $(srcdir)/threadlibs.c $(srcdir)/gcconfig.h Makefile
+	$(HOSTCC) $(CFLAGS) -o threadlibs $(srcdir)/threadlibs.c
 
 if_not_there: $(srcdir)/if_not_there.c
-	$(CC) $(CFLAGS) -o if_not_there $(srcdir)/if_not_there.c
+	$(HOSTCC) $(CFLAGS) -o if_not_there $(srcdir)/if_not_there.c
 
 clean: 
 	rm -f gc.a *.o gctest gctest_dyn_link test_cpp \
@@ -312,16 +381,16 @@ clean:
 	      threadlibs $(CORD_OBJS) cord/cordtest cord/de
 	-rm -f *~
 
-gctest: test.o gc.a if_mach if_not_there
+gctest: test.o gc.a $(UTILS)
 	rm -f gctest
 	./if_mach SPARC DRSNX $(CC) $(CFLAGS) -o gctest  test.o gc.a -lucb
-	./if_mach HP_PA "" $(CC) $(CFLAGS) -o gctest  test.o gc.a -ldld
+	./if_mach HP_PA HPUX $(CC) $(CFLAGS) -o gctest  test.o gc.a -ldld `./threadlibs`
 	./if_not_there gctest $(CC) $(CFLAGS) -o gctest test.o gc.a `./threadlibs`
 
 # If an optimized setjmp_test generates a segmentation fault,
 # odds are your compiler is broken.  Gctest may still work.
 # Try compiling setjmp_t.c unoptimized.
-setjmp_test: $(srcdir)/setjmp_t.c $(srcdir)/gc.h if_mach if_not_there
+setjmp_test: $(srcdir)/setjmp_t.c $(srcdir)/gc.h $(UTILS)
 	$(CC) $(CFLAGS) -o setjmp_test $(srcdir)/setjmp_t.c
 
 test:  KandRtest cord/cordtest
@@ -337,7 +406,7 @@ add_gc_prefix: add_gc_prefix.c
 
 gc.tar: $(SRCS) $(OTHER_FILES) add_gc_prefix
 	./add_gc_prefix $(SRCS) $(OTHER_FILES) > /tmp/gc.tar-files
-	(cd $(srcdir)/.. ; tar cvfh - `cat /tmp/gc.tar-files`) > gc.tar
+	tar cvfh gc.tar `cat /tmp/gc.tar-files`
 
 pc_gc.tar: $(SRCS) $(OTHER_FILES)
 	tar cvfX pc_gc.tar pc_excludes $(SRCS) $(OTHER_FILES)
@@ -364,7 +433,7 @@ gc.tar.gz: gc.tar
 	gzip gc.tar
 
 lint: $(CSRCS) test.c
-	lint -DLINT $(CSRCS) test.c | egrep -v "possible pointer alignment problem|abort|exit|sbrk|mprotect|syscall"
+	lint -DLINT $(CSRCS) test.c | egrep -v "possible pointer alignment problem|abort|exit|sbrk|mprotect|syscall|change in ANSI|improper alignment"
 
 # BTL: added to test shared library version of collector.
 # Currently works only under SunOS5.  Requires GC_INIT call from statically