gcc/boehm-gc/Makefile.dj

# This Makefile is intended only for DJGPP use.
# It is mainly a copy of the main Makefile, but tends to get out of sync
# with it.  A merge would probably be appropriate.

# Primary targets:
# gc.a - builds basic library
# libgc.a - builds library for use with g++ "-fgc-keyword" extension
# c++ - adds C++ interface to library
# cords - adds cords (heavyweight strings) to library
# test - prints porting information, then builds basic version of gc.a,
#      	 and runs some tests of collector and cords.  Does not add cords or
#	 c++ interface to gc.a
# cord/de$(EXE_SUFFIX) - builds dumb editor based on cords.
ABI_FLAG=
CC=gcc $(ABI_FLAG)
CXX=gxx $(ABI_FLAG)
AS=gcc -c -x assembler-with-cpp $(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 (-o32, -n32, or -64)
#  if you use something other than the default ABI on your machine.

# special defines for DJGPP
CXXLD=gxx $(ABI_FLAG)
EXE_SUFFIX=.exe

srcdir= .
VPATH= $(srcdir)

CFLAGS= -O -I$(srcdir)/include -DATOMIC_UNCOLLECTABLE -DNO_SIGNALS -DALL_INTERIOR_POINTERS -DNO_EXECUTE_PERMISSION -DSILENT

# Setjmp_test may yield overly optimistic results when compiled
# without optimization.
# -DSILENT disables statistics printing, and improves performance.
# -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.
# -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,
#   usually causing it to use less space in such situations.
#   Incremental collection no longer works in this case.
# -DLARGE_CONFIG tunes the collector for unusually large heaps.
#   Necessary for heaps larger than about 500 MB on most machines.
#   Recommended for heaps larger than about 64 MB.
# -DDONT_ADD_BYTE_AT_END is meaningful only with
#   -DALL_INTERIOR_POINTERS.  Normally -DALL_INTERIOR_POINTERS
#   causes all objects to be padded so that pointers just past the end of
#   an object can be recognized.  This can be expensive.  (The padding
#   is normally more than one byte due to alignment constraints.)
#   -DDONT_ADD_BYTE_AT_END disables the padding.
# -DNO_SIGNALS does not disable signals during critical parts of
#   the GC process.  This is no less correct than many malloc 
#   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
#   collector on UNIX machines.  It may greatly improve its performance,
#   since this may avoid some expensive cache synchronization.
# -DOPERATOR_NEW_ARRAY declares that the C++ compiler supports the
#   new syntax "operator new[]" for allocating and deleting arrays.
#   See gc_cpp.h for details.  No effect on the C part of the collector.
#   This is defined implicitly in a few environments.
# -DREDIRECT_MALLOC=X causes malloc, realloc, and free to be defined
#   as aliases for X, GC_realloc, and GC_free, respectively.
#   Calloc is redefined in terms of the new malloc.  X should
#   be either GC_malloc or GC_malloc_uncollectable.
#   The former is occasionally useful for working around leaks in code
#   you don't want to (or can't) look at.  It may not work for
#   existing code, but it often does.  Neither works on all platforms,
#   since some ports use malloc or calloc to obtain system memory.
#   (Probably works for UNIX, and win32.)
# -DIGNORE_FREE turns calls to free into a noop.  Only useful with
#   -DREDIRECT_MALLOC.
# -DNO_DEBUGGING removes GC_dump and the debugging routines it calls.
#   Reduces code size slightly at the expense of debuggability.
# -DJAVA_FINALIZATION makes it somewhat safer to finalize objects out of
#   order by specifying a nonstandard finalization mark procedure  (see
#   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.  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.
# -DHBLKSIZE=ddd, where ddd is a power of 2 between 512 and 16384, explicitly
#   sets the heap block size.  Each heap block is devoted to a single size and
#   kind of object.  For the incremental collector it makes sense to match
#   the most likely page size.  Otherwise large values result in more
#   fragmentation, but generally better performance for large heaps.
# -DPRINT_BLACK_LIST Whenever a black list entry is added, i.e. whenever
#   the garbage collector detects a value that looks almost, but not quite,
#   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.
# -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 gc_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
# -DDBG_HDRS_ALL Make sure that all objects have debug headers.  Increases
#   the reliability (from 99.9999% to 100%) of some of the debugging
#   code (especially KEEP_BACK_PTRS).  Makes -DSHORT_DBG_HDRS possible.
#   Assumes that all client allocation is done through debugging
#   allocators.
# -DSHORT_DBG_HDRS Assume that all objects have debug headers.  Shorten
#   the headers to minimize object size, at the expense of checking for
#   writes past the end of an object.  This is intended for environments
#   in which most client code is written in a "safe" language, such as
#   Scheme or Java.  Assumes that all client allocation is done using
#   the GC_debug_ functions (or through the macros that expand to these.
#   (Also eliminates the field for the requested object size.)
#   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!!
# -DGC_USE_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.


CXXFLAGS= $(CFLAGS) -DOPERATOR_NEW_ARRAY
AR= ar
RANLIB= ranlib


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 specific.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 hpux_irix_threads.c linux_threads.c typd_mlc.c ptr_chck.c mallocx.c solaris_pthreads.c gcj_mlc.c specific.c

CORD_SRCS=  cord/cordbscs.c cord/cordxtra.c cord/cordprnt.c cord/de.c cord/cordtest.c include/cord.h include/ec.h include/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

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 include/gc.h include/gc_typed.h \
    include/private/gc_hdrs.h include/private/gc_priv.h \
    include/private/gcconfig.h include/private/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 include/gc_cpp.h \
    include/weakpointer.h include/private/gc_locks.h \
    gcc_support.c mips_ultrix_mach_dep.s include/gc_alloc.h \
    include/new_gc_alloc.h include/javaxfc.h sparc_sunos4_mach_dep.s \
    include/private/solaris_threads.h include/gc_backptr.h \
    hpux_test_and_clear.s include/gc_gcj.h \
    include/gc_local_alloc.h include/private/dbg_mlc.h \
    include/private/specific.h powerpc_macosx_mach_dep.s \
    include/leak_detector.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 \
	   README.rs6000 README.QUICK callprocs pc_excludes \
           barrett_diagram README.OS2 README.Mac MacProjects.sit.hqx \
           MacOS.c EMX_MAKEFILE README.debugging \
           Mac_files/datastart.c Mac_files/dataend.c \
           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 README.MacOSX version.h Makefile.DLLs \
	   WCC_MAKEFILE nursery.c include/gc_nursery.h include/gc_copy_descr.h

CORD_INCLUDE_FILES= $(srcdir)/include/gc.h $(srcdir)/include/cord.h \
	$(srcdir)/include/ec.h $(srcdir)/include/private/cord_pos.h

UTILS= if_mach$(EXE_SUFFIX) if_not_there$(EXE_SUFFIX)

# Libraries needed for curses applications.  Only needed for de.
CURSES= -lcurses -ltermlib

# The following is irrelevant on most systems.  But a few
# versions of make otherwise fork the shell specified in
# the SHELL environment variable.
SHELL= /bin/sh

SPECIALCFLAGS = 
# Alternative flags to the C compiler for mach_dep.c.
# Mach_dep.c often doesn't like optimization, and it's
# not time-critical anyway.
# Set SPECIALCFLAGS to -q nodirect_code on Encore.

all: gc.a gctest$(EXE_SUFFIX)

$(OBJS) test.o dyn_load.o dyn_load_sunos53.o: \
    $(srcdir)/include/private/gc_priv.h \
    $(srcdir)/include/private/gc_hdrs.h $(srcdir)/include/private/gc_locks.h \
    $(srcdir)/include/gc.h \
    $(srcdir)/include/private/gcconfig.h $(srcdir)/include/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

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_1
	./if_mach SPARC SUNOS5 touch on_sparc_sunos5_1
	./if_mach SPARC SUNOS5 $(AR) rus gc.a $(OBJS) dyn_load.o
	./if_not_there on_sparc_sunos5_1 $(AR) ru gc.a $(OBJS) dyn_load.o
	-./if_not_there on_sparc_sunos5_1 $(RANLIB) gc.a
#	ignore ranlib failure; that usually means it doesn't exist, and isn't needed

cords: $(CORD_OBJS) cord/cordtest$(EXE_SUFFIX) $(UTILS)
	rm -f on_sparc_sunos5_3
	./if_mach SPARC SUNOS5 touch on_sparc_sunos5_3
	./if_mach SPARC SUNOS5 $(AR) rus gc.a $(CORD_OBJS)
	./if_not_there on_sparc_sunos5_3 $(AR) ru gc.a $(CORD_OBJS)
	-./if_not_there on_sparc_sunos5_3 $(RANLIB) gc.a

gc_cpp.o: $(srcdir)/gc_cpp.cc $(srcdir)/include/gc_cpp.h $(srcdir)/include/gc.h Makefile
	$(CXX) -c $(CXXFLAGS) $(srcdir)/gc_cpp.cc

test_cpp$(EXE_SUFFIX): $(srcdir)/test_cpp.cc $(srcdir)/include/gc_cpp.h gc_cpp.o $(srcdir)/include/gc.h \
base_lib $(UTILS)
	rm -f test_cpp test_cpp$(EXE_SUFFIX)
	./if_mach HP_PA "" $(CXX) $(CXXFLAGS) -o test_cpp $(srcdir)/test_cpp.cc gc_cpp.o gc.a -ldld
	./if_not_there test_cpp$(EXE_SUFFIX) $(CXXLD) $(CXXFLAGS) -o test_cpp$(EXE_SUFFIX) $(srcdir)/test_cpp.cc gc_cpp.o gc.a
	rm -f test_cpp

c++: gc_cpp.o $(srcdir)/include/gc_cpp.h test_cpp$(EXE_SUFFIX)
	rm -f on_sparc_sunos5_4
	./if_mach SPARC SUNOS5 touch on_sparc_sunos5_4
	./if_mach SPARC SUNOS5 $(AR) rus gc.a gc_cpp.o
	./if_not_there on_sparc_sunos5_4 $(AR) ru gc.a gc_cpp.o
	-./if_not_there on_sparc_sunos5_4 $(RANLIB) gc.a
	./test_cpp$(EXE_SUFFIX) 1
	echo > c++

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
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)
	ld -shared -o libalphagc.so $(OBJS) dyn_load.o -lc
	ln libalphagc.so libgc.so

# IRIX shared library version of the collector
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

mach_dep.o: $(srcdir)/mach_dep.c $(srcdir)/mips_sgi_mach_dep.s $(srcdir)/mips_ultrix_mach_dep.s \
            $(srcdir)/rs6000_mach_dep.s $(srcdir)/powerpc_macosx_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 POWERPC MACOSX $(AS) -o mach_dep.o $(srcdir)/powerpc_macosx_mach_dep.s
	./if_mach ALPHA "" $(AS) -o mach_dep.o $(srcdir)/alpha_mach_dep.s
	./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_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)
	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
#	Work-around for DEC optimizer tail recursion elimination bug.
#  The ALPHA-specific line should be removed if gcc is used.

alloc.o: version.h

cord/cordbscs.o: $(srcdir)/cord/cordbscs.c $(CORD_INCLUDE_FILES)
	$(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) $(CFLAGS) -c -I$(srcdir) $(srcdir)/cord/cordxtra.c
	mv cordxtra.o cord/cordxtra.o

cord/cordprnt.o: $(srcdir)/cord/cordprnt.c $(CORD_INCLUDE_FILES)
	$(CC) $(CFLAGS) -c -I$(srcdir) $(srcdir)/cord/cordprnt.c
	mv cordprnt.o cord/cordprnt.o

cord/cordtest$(EXE_SUFFIX): $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a $(UTILS) /tmp
	rm -f cord/cordtest$(EXE_SUFFIX)
	./if_mach SPARC DRSNX $(CC) $(CFLAGS) -o cord/cordtest$(EXE_SUFFIX) $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a -lucb
	./if_mach HP_PA "" $(CC) $(CFLAGS) -o cord/cordtest$(EXE_SUFFIX) $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a -ldld
	./if_not_there cord/cordtest$(EXE_SUFFIX) $(CC) $(CFLAGS) -o cord/cordtest $(srcdir)/cord/cordtest.c $(CORD_OBJS) gc.a
	rm -f cord/cordtest cordtest
	-mv cordtest$(EXE_SUFFIX) cord/

/tmp: $(UTILS)
	./if_not_there /tmp mkdir /tmp

cord/de$(EXE_SUFFIX): $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(UTILS)
	rm -f cord/de cord/de$(EXE_SUFFIX)
	./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 "" $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES) -ldld
	./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 `./threadlibs`
	./if_mach ALPHA LINUX $(CC) $(CFLAGS) -o cord/de $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a -lcurses
	./if_not_there cord/de$(EXE_SUFFIX) $(CC) $(CFLAGS) -o cord/de$(EXE_SUFFIX) $(srcdir)/cord/de.c cord/cordbscs.o cord/cordxtra.o gc.a $(CURSES)

if_mach$(EXE_SUFFIX): $(srcdir)/if_mach.c $(srcdir)/include/private/gcconfig.h
	rm -f if_mach if_mach$(EXE_SUFFIX)
	$(CC) $(CFLAGS) -o if_mach $(srcdir)/if_mach.c

threadlibs$(EXE_SUFFIX): $(srcdir)/threadlibs.c $(srcdir)include/private/gcconfig.h Makefile
	rm -f threadlibs threadlibs$(EXE_SUFFIX)
	$(CC) $(CFLAGS) -o threadlibs $(srcdir)/threadlibs.c

if_not_there$(EXE_SUFFIX): $(srcdir)/if_not_there.c
	rm -f if_not_there if_not_there$(EXE_SUFFIX)
	$(CC) $(CFLAGS) -o if_not_there $(srcdir)/if_not_there.c

# Clean removes *.o several times,
# because as the first one doesn't seem to get them all!
clean: 
	rm -f gc.a *.o
	rm -f *.o
	rm -f *.o
	rm -f cord/*.o
	rm -f gctest gctest_dyn_link test_cpp
	rm -f setjmp_test  mon.out gmon.out a.out core if_not_there if_mach
	rm -f threadlibs $(CORD_OBJS) cordtest cord/cordtest de cord/de
	rm -f gctest$(EXE_SUFFIX) gctest_dyn_link$(EXE_SUFFIX) test_cpp$(EXE_SUFFIX)
	rm -f setjmp_test$(EXE_SUFFIX) if_not_there$(EXE_SUFFIX) if_mach$(EXE_SUFFIX)
	rm -f threadlibs$(EXE_SUFFIX) cord/cordtest$(EXE_SUFFIX)
	-rm -f *~

gctest$(EXE_SUFFIX): test.o gc.a if_mach$(EXE_SUFFIX) if_not_there$(EXE_SUFFIX)
	rm -f gctest gctest$(EXE_SUFFIX)
	./if_mach SPARC DRSNX $(CC) $(CFLAGS) -o gctest  test.o gc.a -lucb
	./if_mach HP_PA "" $(CC) $(CFLAGS) -o gctest  test.o gc.a -ldld
	./if_not_there gctest$(EXE_SUFFIX) $(CC) $(CFLAGS) -o gctest$(EXE_SUFFIX) test.o gc.a
	rm -f gctest

# 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$(EXE_SUFFIX): $(srcdir)/setjmp_t.c $(srcdir)/include/gc.h \
		if_mach$(EXE_SUFFIX) if_not_there$(EXE_SUFFIX)
	rm -f setjmp_test$(EXE_SUFFIX)
	$(CC) $(CFLAGS) -o setjmp_test $(srcdir)/setjmp_t.c
	rm -f setjmp_test

test:  KandRtest cord/cordtest$(EXE_SUFFIX)
	./cord/cordtest$(EXE_SUFFIX)

# Those tests that work even with a K&R C compiler:
KandRtest: setjmp_test$(EXE_SUFFIX) gctest$(EXE_SUFFIX)
	./setjmp_test$(EXE_SUFFIX)
	./gctest$(EXE_SUFFIX)

add_gc_prefix$(EXE_SUFFIX): add_gc_prefix.c
	$(CC) -o add_gc_prefix$(EXE_SUFFIX) $(srcdir)/add_gc_prefix.c
	rm -f add_gc_prefix

gc.tar: $(SRCS) $(OTHER_FILES) add_gc_prefix
	./add_gc_prefix$(EXE_SUFFIX) $(SRCS) $(OTHER_FILES) > /tmp/gc.tar-files
	(cd $(srcdir)/.. ; tar cvfh - `cat /tmp/gc.tar-files`) > gc.tar

pc_gc.tar: $(SRCS) $(OTHER_FILES)
	tar cvfX pc_gc.tar pc_excludes $(SRCS) $(OTHER_FILES)

gc.tar.Z: gc.tar
	compress gc.tar

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"

# BTL: added to test shared library version of collector.
# Currently works only under SunOS5.  Requires GC_INIT call from statically
# loaded client code.
ABSDIR = `pwd`
gctest_dyn_link: test.o libgc.so
	$(CC) -L$(ABSDIR) -R$(ABSDIR) -o gctest_dyn_link test.o -lgc -ldl -lthread

test_dll.o: test.c libgc_globals.h
	$(CC) $(CFLAGS) -DGC_USE_DLL -c test.c -o test_dll.o

test_dll: test_dll.o libgc_dll.a libgc.dll
	$(CC) test_dll.o -L$(ABSDIR) -lgc_dll -o test_dll

SYM_PREFIX-libgc=GC

# Uncomment the following line to build a GNU win32 DLL
# include Makefile.DLLs