newlib/winsup/cygwin/Makefile.in

# Makefile.in for Cygwin.
# Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Red Hat, Inc.
#
# This file is part of Cygwin.
#
# This software is a copyrighted work licensed under the terms of the
# Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
# details.
# configure_input: @configure_input@

# This makefile requires GNU make.

srcdir:=@srcdir@
target_builddir:=@target_builddir@
winsup_srcdir:=@winsup_srcdir@
configure_args=@configure_args@

export CC:=@CC@
export CXX:=@CXX@

CFLAGS?=@CFLAGS@
CXXFLAGS?=@CXXFLAGS@

include ${srcdir}/../Makefile.common

# environment variables used by ccwrap
export CCWRAP_HEADERS:=. ${srcdir}
export CCWRAP_SYSTEM_HEADERS:=@cygwin_headers@ @newlib_headers@
export CCWRAP_DIRAFTER_HEADERS:=@windows_headers@

VPATH+=$(srcdir)/regex $(srcdir)/lib $(srcdir)/libc

target_cpu:=@target_cpu@
target_alias:=@target_alias@
build_alias:=@build_alias@
host_alias:=@host_alias@
prefix:=@prefix@

program_transform_name:=@program_transform_name@
exec_prefix:=@exec_prefix@
bindir:=@bindir@
libdir:=@libdir@
mandir:=@mandir@
sysconfdir:=@sysconfdir@
datarootdir:=@datarootdir@
ifeq ($(target_alias),$(host_alias))
ifeq ($(build_alias),$(host_alias))
tooldir:=$(exec_prefix)
else
tooldir:=$(exec_prefix)/$(target_alias)
endif
else
tooldir:=$(exec_prefix)/$(target_alias)
endif
datadir:=@datadir@
infodir:=@infodir@
includedir:=@includedir@

override INSTALL:=@INSTALL@
override INSTALL_PROGRAM:=@INSTALL_PROGRAM@
override INSTALL_DATA:=@INSTALL_DATA@

WINDOWS_LIBDIR:=@windows_libdir@

cygserver_blddir:=${target_builddir}/winsup/cygserver
LIBSERVER:=${cygserver_blddir}/libcygserver.a

LIBC:=$(newlib_build)/libc/libc.a
LIBM:=$(newlib_build)/libm/libm.a
CRT0:=$(cygwin_build)/crt0.o

#
# --enable options from configure
#
MT_SAFE:=@MT_SAFE@
CCEXTRA=
COMMON_CFLAGS=-MMD ${$(*F)_CFLAGS} -Werror -fmerge-constants -ftracer $(CCEXTRA)
ifeq ($(target_cpu),x86_64)
COMMON_CFLAGS+=-mcmodel=small
endif
COMPILE.cc+=${COMMON_CFLAGS}
COMPILE.c+=${COMMON_CFLAGS}

AR:=@AR@
AR_FLAGS:=qv
RANLIB:=@RANLIB@
LD:=@LD@
DLLTOOL:=@DLLTOOL@
WINDRES:=@WINDRES@
AS:=@AS@
NM:=@NM@
OBJCOPY:=@OBJCOPY@
OBJDUMP:=@OBJDUMP@
STRIP:=@STRIP@
LDSCRIPT:=cygwin.sc
MKDIRP:=$(INSTALL) -m 755 -d

@SET_MAKE@

# Setup the testing framework, if you have one
EXPECT = `if [ -f $${rootme}/../../expect/expect$(EXEEXT) ] ; then \
	    echo $${rootme}/../../expect/expect$(EXEEXT) ; \
	  else echo expect ; fi`

RUNTEST = `if [ -f $${srcdir}/../dejagnu/runtest ] ; then \
	       echo $${srcdir}/../dejagnu/runtest ; \
	    else echo runtest; fi`
RUNTESTFLAGS =

# Parameters used in building the cygwin.dll.
# We build as cygwin0.dll and rename at install time to overcome
# native rebuilding issues (we don't want the build tools to see a partially
# built cygwin.dll and attempt to use it instead of the old one).

DLL_NAME:=@DLL_NAME@
TEST_DLL_NAME:=${patsubst %1.dll,%0.dll,@DLL_NAME@}
TEST_LIB_NAME:=libcygwin0.a
STATIC_LIB_NAME:=libcygwin_s.a
DIN_FILE=@DIN_FILE@ common.din
DEF_FILE:=cygwin.def
TLSOFFSETS_H:=@TLSOFFSETS_H@
DLL_ENTRY:=@DLL_ENTRY@

LIBGMON_A:=libgmon.a
CYGWIN_START:=crt0.o
GMON_START:=gcrt0.o

toolopts:=--cpu=${target_cpu} --ar=${AR} --as=${AS} --nm=${NM} --objcopy=${OBJCOPY}
speclib=\
    ${srcdir}/speclib ${toolopts} \
	--exclude='cygwin' \
	--exclude='(?i:dll)' \
	--exclude='reloc' \
	--exclude='^main$$' \
	--exclude='^_main$$' \
	$^

# Some things want these from libc, but they have their own static
# data which apps can get to, which is a pain in the dll, so we
# include them directly into the library.

LIBCOS:=${sort ${addsuffix .o,${basename ${notdir ${wildcard $(srcdir)/lib/*.c}}}} \
	       ${addsuffix .o,${basename ${notdir ${wildcard $(srcdir)/lib/*.cc}}}}}

# Build all source files in the config directory

EXTRA_OFILES:=

MALLOC_OFILES:=malloc.o

DLL_IMPORTS:=${shell $(CC) -print-file-name=w32api/libkernel32.a} ${shell $(CC) -print-file-name=w32api/libntdll.a}

MT_SAFE_OBJECTS:=
#
DLL_OFILES:=advapi32.o arc4random.o assert.o autoload.o base64.o bsdlib.o ctype.o \
	cxx.o cygheap.o cygthread.o cygtls.o cygwait.o cygxdr.o dcrt0.o debug.o \
	devices.o dir.o dlfcn.o dll_init.o dtable.o environ.o errno.o exceptions.o \
	exec.o external.o fcntl.o fenv.o fhandler.o fhandler_clipboard.o \
	fhandler_console.o fhandler_dev.o fhandler_disk_file.o fhandler_dsp.o \
	fhandler_fifo.o fhandler_floppy.o fhandler_mailslot.o \
	fhandler_netdrive.o fhandler_nodevice.o fhandler_proc.o \
	fhandler_process.o fhandler_procnet.o fhandler_procsys.o \
	fhandler_procsysvipc.o fhandler_random.o fhandler_raw.o \
	fhandler_registry.o fhandler_serial.o fhandler_socket.o fhandler_tape.o \
	fhandler_termios.o fhandler_tty.o fhandler_virtual.o fhandler_windows.o \
	fhandler_zero.o flock.o fnmatch.o fork.o fts.o ftw.o getopt.o glob.o \
	glob_pattern_p.o globals.o grp.o heap.o hookapi.o inet_addr.o \
	inet_network.o init.o ioctl.o ipc.o kernel32.o libstdcxx_wrapper.o \
	localtime.o lsearch.o malloc_wrapper.o minires-os-if.o minires.o \
	miscfuncs.o mktemp.o mmap.o msg.o mount.o net.o netdb.o nfs.o nftw.o \
	nlsfuncs.o ntea.o passwd.o path.o pinfo.o pipe.o poll.o posix_ipc.o \
	pseudo-reloc.o pthread.o random.o regcomp.o regerror.o regexec.o regfree.o \
	registry.o resource.o rexec.o rcmd.o scandir.o sched.o sec_acl.o \
	sec_auth.o sec_helper.o security.o select.o sem.o setlsapwd.o shared.o \
	shm.o sigfe.o signal.o sigproc.o smallprint.o spawn.o strace.o strfmon.o \
	strfuncs.o strptime.o strsep.o strsig.o sync.o syscalls.o sysconf.o \
	syslog.o termios.o thread.o timer.o times.o tls_pbuf.o tty.o uinfo.o \
	uname.o wait.o wincap.o window.o winf.o wow64.o xsique.o \
	$(EXTRA_OFILES) $(MALLOC_OFILES) $(MT_SAFE_OBJECTS)

EXCLUDE_STATIC_OFILES:=$(addprefix --exclude=,\
	cygtls.o \
	dcrt0.o \
	exceptions.o \
	fork.o \
	signal.o \
	spawn.o \
)

ifdef PREPROCESS
override DLL_OFILES:=$(patsubst %.o,%_E,${DLL_OFILES})
override EXCLUDE_STATIC_OFILES:=$(patsubst %.o,%_E,${EXCLUDE_STATIC_OFILES})
override EXTRA_OFILES=$(patsubst %.o,%_E,${DLL_OFILES}))
override MALLOC_OFILES:=$(patsubst %.o,%.E,${MALLOC_OFILES})
endif #PREPROCESS

ifeq ($(target_cpu),x86_64)
# Needed by mcountFunc.S to choose the right code path and symbol names
ASFLAGS:=-D_WIN64
endif

GMON_OFILES:=gmon.o mcount.o profil.o mcountFunc.o

ifeq ($(target_cpu),x86_64)
NEW_FUNCTIONS:=
else
NEW_FUNCTIONS:=$(addprefix --replace=,\
	acl=_acl32 \
	aclcheck=_aclcheck32 \
	aclfrommode=_aclfrommode32 \
	aclfrompbits=_aclfrompbits32 \
	aclfromtext=_aclfromtext32 \
	aclsort=_aclsort32 \
	acltomode=_acltomode32 \
	acltopbits=_acltopbits32 \
	acltotext=_acltotext32 \
	chown=_chown32 \
	facl=_facl32 \
	fchown=_fchown32 \
	fcntl=_fcntl64 \
	fdopen=_fdopen64 \
	fgetpos=_fgetpos64 \
	fopen=_fopen64 \
	freopen=_freopen64 \
	fseeko=_fseeko64 \
	fsetpos=_fsetpos64 \
	fstat=_fstat64 \
	ftello=_ftello64 \
	ftruncate=_ftruncate64 \
	getegid=_getegid32 \
	geteuid=_geteuid32 \
	getgid=_getgid32 \
	getgrent=_getgrent32 \
	getgrgid=_getgrgid32 \
	getgrnam=_getgrnam32 \
	getgroups=_getgroups32 \
	getpwuid=_getpwuid32 \
	getpwuid_r=_getpwuid_r32 \
	getuid=_getuid32 \
	initgroups=_initgroups32 \
	lchown=_lchown32 \
	lseek=_lseek64 \
	lstat=_lstat64 \
	mknod=_mknod32 \
	mmap=_mmap64 \
	open=_open64 \
	setegid=_setegid32 \
	seteuid=_seteuid32 \
	setgid=_setgid32 \
	setgroups=_setgroups32 \
	setregid=_setregid32 \
	setreuid=_setreuid32 \
	setuid=_setuid32 \
	stat=_stat64 \
	timezone= \
	tmpfile=_tmpfile64 \
	truncate=_truncate64 \
)
endif

API_VER:=$(srcdir)/include/cygwin/version.h

LIB_NAME:=libcygwin.a
SUBLIBS:=libpthread.a libutil.a ${CURDIR}/libm.a ${CURDIR}/libc.a libdl.a libresolv.a librt.a
EXTRALIBS:=libautomode.a libbinmode.a libtextmode.a libtextreadmode.a
INSTOBJS:=automode.o binmode.o textmode.o textreadmode.o
TARGET_LIBS:=$(LIB_NAME) $(CYGWIN_START) $(GMON_START) $(LIBGMON_A) $(SUBLIBS) $(INSTOBJS) $(EXTRALIBS)

ifneq "${filter -O%,$(CFLAGS)}" ""
cygheap_CFLAGS:=-fomit-frame-pointer
cygthread_CFLAGS:=-fomit-frame-pointer
cygtls_CFLAGS:=-fomit-frame-pointer
cygwait_CFLAGS=-fomit-frame-pointer
delqueue_CFLAGS:=-fomit-frame-pointer
devices_CFLAGS:=-fomit-frame-pointer
dir_CFLAGS:=-fomit-frame-pointer
dlfcn_CFLAGS:=-fomit-frame-pointer
dll_init_CFLAGS:=-fomit-frame-pointer
dtable_CFLAGS:=-fomit-frame-pointer -fcheck-new
fcntl_CFLAGS:=-fomit-frame-pointer
fenv_CFLAGS:=-fomit-frame-pointer
fhandler_CFLAGS:=-fomit-frame-pointer
fhandler_clipboard_CFLAGS:=-fomit-frame-pointer
fhandler_console_CFLAGS:=-fomit-frame-pointer
fhandler_disk_file_CFLAGS:=-fomit-frame-pointer
fhandler_dsp_CFLAGS:=-fomit-frame-pointer
fhandler_floppy_CFLAGS:=-fomit-frame-pointer
fhandler_netdrive_CFLAGS:=-fomit-frame-pointer
fhandler_proc_CFLAGS:=-fomit-frame-pointer
fhandler_process_CFLAGS:=-fomit-frame-pointer
fhandler_random_CFLAGS:=-fomit-frame-pointer
fhandler_raw_CFLAGS:=-fomit-frame-pointer
fhandler_registry_CFLAGS:=-fomit-frame-pointer
fhandler_serial_CFLAGS:=-fomit-frame-pointer
fhandler_socket_CFLAGS:=-fomit-frame-pointer
fhandler_syslog_CFLAGS:=-fomit-frame-pointer
fhandler_tape_CFLAGS:=-fomit-frame-pointer
fhandler_termios_CFLAGS:=-fomit-frame-pointer
fhandler_tty_CFLAGS:=-fomit-frame-pointer
fhandler_virtual_CFLAGS:=-fomit-frame-pointer
fhandler_windows_CFLAGS:=-fomit-frame-pointer
fhandler_zero_CFLAGS:=-fomit-frame-pointer
flock_CFLAGS:=-fomit-frame-pointer
grp_CFLAGS:=-fomit-frame-pointer
libstdcxx_wrapper_CFLAGS:=-fomit-frame-pointer
localtime_CFLAGS:=-fwrapv
malloc_CFLAGS:=-fomit-frame-pointer -O3
malloc_wrapper_CFLAGS:=-fomit-frame-pointer
miscfuncs_CFLAGS:=-fomit-frame-pointer
net_CFLAGS:=-fomit-frame-pointer
passwd_CFLAGS:=-fomit-frame-pointer
path_CFLAGS=-fomit-frame-pointer
regcomp_CFLAGS=-fomit-frame-pointer
regerror_CFLAGS=-fomit-frame-pointer
regexec_CFLAGS=-fomit-frame-pointer
regfree_CFLAGS=-fomit-frame-pointer
shared_CFLAGS:=-fomit-frame-pointer
sync_CFLAGS:=-fomit-frame-pointer -O3
smallprint_CFLAGS:=-fomit-frame-pointer
syscalls_CFLAGS:=-fomit-frame-pointer
sysconf_CFLAGS:=-fomit-frame-pointer
uinfo_CFLAGS:=-fomit-frame-pointer
endif

fhandler_proc_CFLAGS+=-DUSERNAME="\"$(USER)\"" -DHOSTNAME="\"$(HOSTNAME)\""
fhandler_proc_CFLAGS+=-DGCC_VERSION="\"`$(CC) -v 2>&1 | tail -n 1`\""

_cygwin_crt0_common_STDINCFLAGS:=yes
libstdcxx_wrapper_STDINCFLAGS:=yes
cxx_STDINCFLAGS:=yes

.PHONY: all force dll_ofiles install all_target install_target all_host install_host \
	install install-libs install-headers

all_host=@all_host@
install_host=@install_host@

all: all_target $(all_host)

all_target: $(TARGET_LIBS)

all_host: $(TEST_LIB_NAME)

force:

install: install-libs install-headers install-man install_target \
	$(install_host) $(install_target)

uninstall: uninstall-libs uninstall-headers uninstall-man

install-libs: $(TARGET_LIBS)
	@$(MKDIRP) $(DESTDIR)$(bindir)
	$(INSTALL_PROGRAM) $(TEST_DLL_NAME) $(DESTDIR)$(bindir)/$(DLL_NAME); \
	for i in $^; do \
	    $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/lib/`basename $$i` ; \
	done
	cd $(DESTDIR)$(tooldir)/lib && ln -sf libcygwin.a libg.a

install-headers:
	cd $(srcdir); \
	for sub in `find include -name '[a-z]*' -type d -print | sort`; do \
	    $(MKDIRP) $(DESTDIR)$(tooldir)/$$sub; \
	    for i in $$sub/*.h ; do \
	      $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/$$sub/`basename $$i` ; \
	    done ; \
	done ; \

install-man:
	@$(MKDIRP) $(DESTDIR)$(mandir)/man2 $(DESTDIR)$(mandir)/man3 $(DESTDIR)$(mandir)/man5 $(DESTDIR)$(mandir)/man7
	cd $(srcdir); \
	for i in `find . -type f -name '*.2'`; do \
	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/man2/`basename $$i` ; \
	done; \
	for i in `find . -type f -name '*.3'`; do \
	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/man3/`basename $$i` ; \
	done; \
	for i in `find . -type f -name '*.5'`; do \
	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/man5/`basename $$i` ; \
	done; \
	for i in `find . -type f -name '*.7'`; do \
	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/man7/`basename $$i` ; \
	done

install_target:

install_host:

uninstall-libs: $(TARGET_LIBS)
	rm -f $(bindir)/$(DLL_NAME); \
	for i in $^; do \
	    rm -f $(tooldir)/lib/$$i ; \
	done

uninstall-headers:
	cd $(srcdir); \
	for sub in `find include -name '[a-z]*' -type d -print | sort`; do \
	    for i in $$sub/*.h ; do \
	      rm -f $(tooldir)/$$sub/`basename $$i` ; \
	    done ; \
	done ; \

uninstall-man:
	cd $(srcdir); \
	for i in `find . -type f -name '*.2'`; do \
	    rm -f $(DESTDIR)$(mandir)/man2/`basename $$i` ; \
	done; \
	for i in `find . -type f -name '*.3'`; do \
	    rm -f $(DESTDIR)$(mandir)/man3/`basename $$i` ; \
	done; \
	for i in `find . -type f -name '*.5'`; do \
	    rm -f $(DESTDIR)$(mandir)/man5/`basename $$i` ; \
	done; \
	for i in `find . -type f -name '*.7'`; do \
	    rm -f $(DESTDIR)$(mandir)/man7/`basename $$i` ; \
	done

clean:
	-rm -f *.o *.dll *.dbg *.a *.exp junk *.base version.cc winver_stamp *.exe *.d *stamp* *_magic.h sigfe.s cygwin.def globals.h $(srcdir)/$(TLSOFFSETS_H) $(srcdir)/devices.cc
	-@$(MAKE) -C ${cygserver_blddir} libclean

maintainer-clean realclean: clean
	@echo "This command is intended for maintainers to use;"
	@echo "it deletes files that may require special tools to rebuild."
	-rm -fr configure

# Rule to build LDSCRIPT
$(LDSCRIPT): $(LDSCRIPT).in
	$(CC) -E - -P < $^ -o $@

# Rule to build cygwin.dll
$(TEST_DLL_NAME): $(LDSCRIPT) dllfixdbg $(DLL_OFILES) $(LIBSERVER) $(LIBC) $(LIBM) $(API_VER) Makefile winver_stamp
	$(CXX) $(CXXFLAGS) \
	-mno-use-libstdc-wrappers -L${WINDOWS_LIBDIR} \
	-Wl,--gc-sections $(nostdlib) -Wl,-T$(firstword $^) -static \
	-Wl,--heap=0 -Wl,--out-implib,cygdll.a -shared -o $@ \
	-e $(DLL_ENTRY) $(DEF_FILE) $(DLL_OFILES) version.o winver.o \
	$(MALLOC_OBJ) $(LIBSERVER) $(LIBM) $(LIBC) \
	-lgcc $(DLL_IMPORTS) -Wl,-Map,cygwin.map
	@$(word 2,$^) $(OBJDUMP) $(OBJCOPY) $@ ${patsubst %0.dll,%1.dbg,$@}
	@ln -f $@ new-$(DLL_NAME)

# Rule to build libcygwin.a
$(LIB_NAME): $(DEF_FILE) $(LIBCOS) | $(TEST_DLL_NAME)
	${srcdir}/mkimport ${toolopts} ${NEW_FUNCTIONS} $@ cygdll.a $(wordlist 2,99,$^)

${STATIC_LIB_NAME}: mkstatic ${TEST_DLL_NAME}
	perl -d $< -x ${EXCLUDE_STATIC_OFILES} --library=${LIBC} --library=${LIBM} --ar=${AR} $@ cygwin.map

# Rule to make stub library used by testsuite
# dependency set to $(LIB_NAME) to accommodate make -j2.
$(TEST_LIB_NAME): $(LIB_NAME)
	perl -p -e 'BEGIN{binmode(STDIN); binmode(STDOUT);}; s/cygwin1/cygwin0/g' < $? > $@

$(LIBSERVER): ${cygserver_blddir}/Makefile
	$(MAKE) -C ${cygserver_blddir} libcygserver.a

${cygserver_blddir}/Makefile:
	/bin/mkdir -p ${@D}
	cd ${@D} && exec /bin/sh $(dir ${srcdir})/cygserver/configure ${configure_args}

dll_ofiles: $(DLL_OFILES)

$(LIBGMON_A): $(GMON_OFILES) $(GMON_START)
	$(AR) rcv $(LIBGMON_A) $(GMON_OFILES)

version.cc winver.o: winver_stamp
	@ :

globals.h: mkglobals_h globals.cc
	$^ > $@

${DLL_OFILES} ${LIBCOS}: globals.h

shared_info_magic.h: cygmagic shared_info.h
	/bin/sh $(word 1,$^) $@ "${COMPILE.cc} -E -x c++" $(word 2,$^) SHARED_MAGIC 'class shared_info' USER_MAGIC 'class user_info'

child_info_magic.h: cygmagic child_info.h
	/bin/sh $(word 1,$^) $@ "${COMPILE.cc} -E -x c++" $(word 2,$^) CHILD_INFO_MAGIC 'class child_info'

dcrt0.o sigproc.o: child_info_magic.h

shared.o: shared_info_magic.h

$(srcdir)/devices.cc: gendevices devices.in devices.h
	${wordlist 1,2,$^} $@

${CURDIR}/libc.a: ${LIB_NAME} ${CURDIR}/libm.a libpthread.a libutil.a
	${speclib} -v ${@F}

${CURDIR}/libm.a: ${LIB_NAME} $(LIBM)
	${speclib} ${@F}

libpthread.a: ${LIB_NAME} pthread.o thread.o
	${speclib} ${@F}

libutil.a: ${LIB_NAME} bsdlib.o
	${speclib} ${@F}

libdl.a: ${LIB_NAME} dlfcn.o
	${speclib} ${@F}

libresolv.a: ${LIB_NAME} minires.o
	${speclib} ${@F}

librt.a: ${LIB_NAME} posix_ipc.o
	${speclib} ${@F}

${EXTRALIBS}: lib%.a: %.o
	$(AR) cru $@ $?

winver_stamp: mkvers.sh include/cygwin/version.h winver.rc $(DLL_OFILES)
	@echo "Making version.o and winver.o";\
	/bin/sh ${word 1,$^} ${word 2,$^} ${word 3,$^} $(WINDRES) ${CFLAGS} $(addprefix -I,${CCWRAP_SYSTEM_HEADERS} ${CCWRAP_DIRAFTER_HEADERS}) S&& \
	$(COMPILE.cc) -c -o version.o version.cc && \
	touch $@

Makefile: ${srcdir}/Makefile.in
	/bin/sh ./config.status

$(DEF_FILE): gendef $(srcdir)/$(TLSOFFSETS_H) $(DIN_FILE)
	$(word 1,$^) --cpu=${target_cpu} --output-def=$@  --tlsoffsets=$(word 2,$^) $(wordlist 3,99,$^)

$(srcdir)/$(TLSOFFSETS_H): gentls_offsets cygtls.h
	$^ $@ $(target_cpu) $(COMPILE.cc) -c

sigfe.s: $(DEF_FILE)
	@[ -s $@ ] || \
	{ rm -f $(DEF_FILE); $(MAKE) -s -j1 $(DEF_FILE); }; \
	[ -s $@ ] && touch $@

sigfe.o: sigfe.s
	$(CC) -c -o $@ $<

ctags: CTAGS
tags:  CTAGS
CTAGS:
	-cd $(srcdir) && ctags -R --regex-C++='/^([a-zA-Z0-9_]*::[a-zA-Z0-9_]*) /\1/f/' .

deps:=${wildcard *.d}
ifneq (,$(deps))
include $(deps)
endif

%: RCS/%,v