Gecko [ www.blackthorn-inc.com ]

Name	Size	Permission	Date
.config	[ DIR ]	drwxr-xr-x	2016-10-10 17:32
Cross	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
NetWare	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
Porting	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
cpan	[ DIR ]	drwxr-xr-x	2015-02-14 16:55
cygwin	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
dist	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
djgpp	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
ext	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
h2pl	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
haiku	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
hints	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
lib	[ DIR ]	drwxr-xr-x	2016-10-10 18:16
mad	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
os2	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
plan9	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
pod	[ DIR ]	drwxr-xr-x	2016-10-10 18:13
qnx	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
regen	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
symbian	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
t	[ DIR ]	drwxr-xr-x	2016-10-10 19:00
utils	[ DIR ]	drwxr-xr-x	2016-10-10 17:41
vms	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
vos	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
win32	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
x2p	[ DIR ]	drwxr-xr-x	2016-10-10 17:41
AUTHORS	44.95 KB	-r--r--r--	2015-01-28 21:08
Artistic	6.17 KB	-r--r--r--	2014-12-27 11:48
Changes	3.09 KB	-r--r--r--	2014-12-27 11:48
Configure	539.85 KB	-r-xr-xr-x	2015-01-10 12:06
Copying	12.34 KB	-r--r--r--	2014-12-27 11:48
DynaLoader.o	9.58 KB	-rw-r--r--	2016-10-10 17:38
EXTERN.h	2.04 KB	-r--r--r--	2014-12-27 11:48
INSTALL	104.05 KB	-r--r--r--	2015-01-31 15:32
INTERN.h	1.47 KB	-r--r--r--	2014-12-27 11:49
MANIFEST	300.93 KB	-r--r--r--	2015-01-28 21:08
META.json	3.58 KB	-r--r--r--	2015-02-01 03:22
META.yml	2.83 KB	-r--r--r--	2015-01-28 21:08
Makefile	34.77 KB	-rw-r--r--	2016-10-10 17:34
Makefile.SH	48.39 KB	-r-xr-xr-x	2014-12-27 11:49
Makefile.micro	5.13 KB	-r--r--r--	2014-12-27 11:48
Policy.sh	5.33 KB	-rw-r--r--	2016-10-10 17:34
Policy_sh.SH	7.94 KB	-r-xr-xr-x	2014-12-27 11:48
README	5.53 KB	-r--r--r--	2015-01-28 21:11
README.aix	19.15 KB	-r--r--r--	2014-12-27 11:49
README.amiga	6.87 KB	-r--r--r--	2014-12-27 11:48
README.android	7.61 KB	-r--r--r--	2014-12-27 11:48
README.bs2000	7.73 KB	-r--r--r--	2014-12-27 11:48
README.ce	14.27 KB	-r--r--r--	2014-12-27 11:48
README.cn	4.58 KB	-r--r--r--	2014-12-27 11:48
README.cygwin	26.67 KB	-r--r--r--	2014-12-27 11:49
README.dos	10.28 KB	-r--r--r--	2014-12-27 11:48
README.freebsd	1.55 KB	-r--r--r--	2014-12-27 11:48
README.haiku	1.47 KB	-r--r--r--	2015-01-28 21:08
README.hpux	28.68 KB	-r--r--r--	2014-12-27 11:49
README.hurd	1.94 KB	-r--r--r--	2014-12-27 11:48
README.irix	4.29 KB	-r--r--r--	2014-12-27 11:48
README.jp	7.34 KB	-r--r--r--	2014-12-27 11:48
README.ko	11.97 KB	-r--r--r--	2014-12-27 11:48
README.linux	1.45 KB	-r--r--r--	2014-12-27 11:48
README.macos	1001 B	-r--r--r--	2014-12-27 11:48
README.macosx	11.72 KB	-r--r--r--	2015-01-28 21:08
README.micro	1.81 KB	-r--r--r--	2014-12-27 11:48
README.netware	6.32 KB	-r--r--r--	2014-12-27 11:48
README.openbsd	1.18 KB	-r--r--r--	2014-12-27 11:48
README.os2	90.54 KB	-r--r--r--	2015-01-28 21:08
README.os390	15.19 KB	-r--r--r--	2014-12-27 11:48
README.os400	4.51 KB	-r--r--r--	2014-12-27 11:48
README.plan9	5 KB	-r--r--r--	2014-12-27 11:48
README.qnx	6.52 KB	-r--r--r--	2014-12-27 11:48
README.riscos	1.49 KB	-r--r--r--	2014-12-27 11:48
README.solaris	29.11 KB	-r--r--r--	2014-12-27 11:48
README.symbian	15.44 KB	-r--r--r--	2014-12-27 11:48
README.synology	6.88 KB	-r--r--r--	2014-12-27 11:48
README.tru64	7.56 KB	-r--r--r--	2014-12-27 11:49
README.tw	4.5 KB	-r--r--r--	2014-12-27 11:48
README.vms	23.45 KB	-r--r--r--	2015-01-28 21:08
README.vos	3.75 KB	-r--r--r--	2014-12-27 11:48
README.win32	37.59 KB	-r--r--r--	2015-01-15 22:12
TestInit.pm	2.95 KB	-r--r--r--	2014-12-27 11:49
XSUB.h	21.18 KB	-r--r--r--	2014-12-27 11:49
autodoc.pl	13.88 KB	-r--r--r--	2014-12-27 11:49
av.c	23.23 KB	-r--r--r--	2014-12-27 11:49
av.h	3.15 KB	-r--r--r--	2014-12-27 11:49
av.o	17.22 KB	-rw-r--r--	2016-10-10 17:36
bitcount.h	850 B	-rw-r--r--	2016-10-10 17:36
caretx.c	4.14 KB	-r--r--r--	2014-12-27 11:49
caretx.o	2.1 KB	-rw-r--r--	2016-10-10 17:36
cflags	3.79 KB	-rwxr-xr-x	2016-10-10 17:34
cflags.SH	10.3 KB	-r-xr-xr-x	2014-12-27 11:49
charclass_invlists.h	86.63 KB	-r--r--r--	2014-12-27 11:49
config.h	144.21 KB	-rw-r--r--	2016-10-10 17:34
config.sh	33.79 KB	-rw-r--r--	2016-10-10 17:34
config_h.SH	147.66 KB	-r-xr-xr-x	2014-12-27 11:49
configpm	31.32 KB	-r-xr-xr-x	2014-12-27 11:49
configure.com	211.66 KB	-r--r--r--	2014-12-27 11:49
configure.gnu	2.5 KB	-r-xr-xr-x	2014-12-27 11:48
cop.h	40.55 KB	-r--r--r--	2014-12-27 11:49
cv.h	10.25 KB	-r--r--r--	2014-12-27 11:49
deb.c	7.48 KB	-r--r--r--	2014-12-27 11:49
deb.o	2.15 KB	-rw-r--r--	2016-10-10 17:36
doio.c	64.64 KB	-r--r--r--	2014-12-27 11:49
doio.o	54.52 KB	-rw-r--r--	2016-10-10 17:36
doop.c	29.36 KB	-r--r--r--	2014-12-27 11:49
doop.o	23.63 KB	-rw-r--r--	2016-10-10 17:36
dosish.h	5.41 KB	-r--r--r--	2014-12-27 11:48
dquote_static.c	10.92 KB	-r--r--r--	2014-12-27 11:49
dump.c	99.94 KB	-r--r--r--	2015-01-12 22:02
dump.o	75.78 KB	-rw-r--r--	2016-10-10 17:36
embed.fnc	114 KB	-r--r--r--	2014-12-27 11:49
embed.h	88.24 KB	-rw-r--r--	2014-12-27 11:49
embedvar.h	17.51 KB	-rw-r--r--	2014-12-27 11:49
ext.libs	0 B	-rw-r--r--	2016-10-10 17:38
extra.pods	585 B	-rw-r--r--	2016-10-10 17:36
fakesdio.h	3.24 KB	-r--r--r--	2014-12-27 11:48
feature.h	4.26 KB	-rw-r--r--	2014-12-27 11:49
form.h	1.43 KB	-r--r--r--	2014-12-27 11:48
generate_uudmap	14.41 KB	-rwxr-xr-x	2016-10-10 17:36
generate_uudmap.c	3.73 KB	-r--r--r--	2014-12-27 11:49
generate_uudmap.o	10.16 KB	-rw-r--r--	2016-10-10 17:36
git_version.h	357 B	-rw-r--r--	2016-10-10 17:36
globals.c	1.28 KB	-r--r--r--	2014-12-27 11:48
globals.o	96.84 KB	-rw-r--r--	2016-10-10 17:36
globvar.sym	994 B	-r--r--r--	2014-12-27 11:49
gv.c	99.2 KB	-r--r--r--	2014-12-27 12:19
gv.h	10.54 KB	-r--r--r--	2014-12-27 11:49
gv.o	82.3 KB	-rw-r--r--	2016-10-10 17:35
handy.h	90.96 KB	-r--r--r--	2014-12-27 11:49
hv.c	102.94 KB	-r--r--r--	2014-12-27 11:49
hv.h	23.9 KB	-r--r--r--	2014-12-27 11:48
hv.o	43.42 KB	-rw-r--r--	2016-10-10 17:36
hv_func.h	17.45 KB	-r--r--r--	2014-12-27 11:49
inline.h	9.29 KB	-r--r--r--	2014-12-27 11:49
inline_invlist.c	1.91 KB	-r--r--r--	2014-12-27 11:49
install_lib.pl	3.9 KB	-r--r--r--	2014-12-27 11:49
installhtml	17.04 KB	-r--r--r--	2014-12-27 11:48
installman	5.62 KB	-r-xr-xr-x	2014-12-27 11:48
installperl	27.46 KB	-r-xr-xr-x	2015-01-10 12:06
intrpvar.h	26.99 KB	-r--r--r--	2015-01-28 21:08
iperlsys.h	47.63 KB	-r--r--r--	2014-12-27 11:49
keywords.c	88.86 KB	-rw-r--r--	2014-12-27 11:49
keywords.h	6.43 KB	-rw-r--r--	2014-12-27 11:49
keywords.o	30.68 KB	-rw-r--r--	2016-10-10 17:36
l1_char_class_tab.h	38.25 KB	-r--r--r--	2014-12-27 11:49
libperl.a	2.75 MB	-rw-r--r--	2016-10-10 17:38
locale.c	45.02 KB	-r--r--r--	2014-12-27 11:49
locale.o	15.68 KB	-rw-r--r--	2016-10-10 17:36
madly.c	704 B	-r--r--r--	2014-12-27 11:49
make_ext.pl	24.34 KB	-r--r--r--	2015-01-10 12:06
make_patchnum.pl	6.65 KB	-r--r--r--	2014-12-27 11:49
makedef.pl	33.97 KB	-r--r--r--	2015-01-12 20:14
makedepend	7.07 KB	-rwxr-xr-x	2016-10-10 17:34
makedepend.SH	7.82 KB	-r-xr-xr-x	2014-12-27 11:49
makefile	303.73 KB	-rw-r--r--	2016-10-10 17:34
makefile.old	34.77 KB	-rw-r--r--	2016-10-10 17:34
malloc.c	70.51 KB	-r--r--r--	2014-12-27 11:49
malloc_ctl.h	1.48 KB	-r--r--r--	2014-12-27 11:48
mathoms.c	30.41 KB	-r--r--r--	2014-12-27 11:49
mathoms.o	30.02 KB	-rw-r--r--	2016-10-10 17:36
metaconfig.SH	1.18 KB	-r-xr-xr-x	2014-12-27 11:48
metaconfig.h	981 B	-r--r--r--	2014-12-27 11:49
mg.c	84.07 KB	-r--r--r--	2014-12-27 12:31
mg.h	2.9 KB	-r--r--r--	2014-12-27 11:49
mg.o	72.97 KB	-rw-r--r--	2016-10-10 17:36
mg_data.h	4.7 KB	-rw-r--r--	2016-10-10 17:36
mg_names.c	2.05 KB	-r--r--r--	2014-12-27 11:49
mg_raw.h	4.02 KB	-r--r--r--	2014-12-27 11:49
mg_vtable.h	8.73 KB	-rw-r--r--	2014-12-27 11:49
miniperl	1.53 MB	-rwxr-xr-x	2016-10-10 17:36
miniperlmain.c	5.11 KB	-r--r--r--	2014-12-27 11:49
miniperlmain.o	2.95 KB	-rw-r--r--	2016-10-10 17:35
mkppport	4.26 KB	-r--r--r--	2014-12-27 11:48
mkppport.lst	257 B	-r--r--r--	2014-12-27 11:48
mro.c	42.78 KB	-r--r--r--	2014-12-27 11:49
mro.o	24.22 KB	-rw-r--r--	2016-10-10 17:36
myconfig	2 KB	-rwxr-xr-x	2016-10-10 17:34
myconfig.SH	2.45 KB	-r-xr-xr-x	2014-12-27 11:49
mydtrace.h	2.83 KB	-r--r--r--	2014-12-27 11:48
nostdio.h	3.37 KB	-r--r--r--	2014-12-27 11:49
numeric.c	33.86 KB	-r--r--r--	2014-12-27 11:49
numeric.o	14.3 KB	-rw-r--r--	2016-10-10 17:36
op.c	339.8 KB	-r--r--r--	2015-01-12 22:02
op.h	37.45 KB	-r--r--r--	2014-12-27 12:38
op.o	218.2 KB	-rw-r--r--	2016-10-10 17:38
op_reg_common.h	5.08 KB	-r--r--r--	2014-12-27 11:49
opcode.h	46.78 KB	-rw-r--r--	2014-12-27 11:49
opmini.c	339.8 KB	-r--r--r--	2015-01-12 22:02
opmini.o	217.94 KB	-rw-r--r--	2016-10-10 17:35
opnames.h	8.17 KB	-rw-r--r--	2014-12-27 11:49
overload.c	3.32 KB	-rw-r--r--	2014-12-27 11:48
overload.h	2.95 KB	-rw-r--r--	2014-12-27 11:48
packsizetables.c	5.94 KB	-r--r--r--	2014-12-27 11:48
pad.c	71.56 KB	-r--r--r--	2015-01-15 22:12
pad.h	15.99 KB	-r--r--r--	2015-01-15 22:12
pad.o	31.54 KB	-rw-r--r--	2016-10-10 17:36
parser.h	6.52 KB	-r--r--r--	2014-12-27 11:49
patchlevel.h	5.19 KB	-r--r--r--	2015-02-01 03:22
perl	1.63 MB	-rwxr-xr-x	2016-10-10 19:19
perl.c	131.72 KB	-r--r--r--	2015-01-28 21:12
perl.h	177.1 KB	-r--r--r--	2015-01-12 20:14
perl.o	175.37 KB	-rw-r--r--	2016-10-10 17:38
perlapi.c	1.69 KB	-rw-r--r--	2014-12-27 11:48
perlapi.h	5.49 KB	-rw-r--r--	2014-12-27 11:48
perlapi.o	939 B	-rw-r--r--	2016-10-10 17:36
perldtrace.d	563 B	-r--r--r--	2014-12-27 11:48
perlio.c	117.77 KB	-r--r--r--	2014-12-27 11:49
perlio.h	10.22 KB	-r--r--r--	2014-12-27 11:48
perlio.o	72.05 KB	-rw-r--r--	2016-10-10 17:36
perlio.sym	446 B	-r--r--r--	2014-12-27 11:48
perliol.h	13.32 KB	-r--r--r--	2014-12-27 11:49
perlmain.c	5.09 KB	-rw-r--r--	2016-10-10 19:19
perlmain.o	3.38 KB	-rw-r--r--	2016-10-10 19:19
perlmini.c	131.72 KB	-r--r--r--	2015-01-28 21:12
perlmini.o	173.31 KB	-rw-r--r--	2016-10-10 17:35
perlsdio.h	4.92 KB	-r--r--r--	2014-12-27 11:48
perlvars.h	8.76 KB	-r--r--r--	2014-12-27 11:48
perly.act	55.04 KB	-r--r--r--	2014-12-27 11:49
perly.c	16.1 KB	-r--r--r--	2014-12-27 11:49
perly.h	6.08 KB	-r--r--r--	2014-12-27 11:49
perly.o	51.13 KB	-rw-r--r--	2016-10-10 17:36
perly.tab	74.01 KB	-r--r--r--	2014-12-27 11:49
perly.y	38.93 KB	-r--r--r--	2014-12-27 11:49
pp.c	147.83 KB	-r--r--r--	2014-12-27 11:49
pp.h	19.83 KB	-r--r--r--	2014-12-27 11:49
pp.o	150.74 KB	-rw-r--r--	2016-10-10 17:36
pp_ctl.c	142.43 KB	-r--r--r--	2015-01-24 15:03
pp_ctl.o	143.59 KB	-rw-r--r--	2016-10-10 17:36
pp_hot.c	82.79 KB	-r--r--r--	2014-12-27 11:49
pp_hot.o	76.93 KB	-rw-r--r--	2016-10-10 17:36
pp_pack.c	81.07 KB	-r--r--r--	2014-12-27 11:49
pp_pack.o	78.95 KB	-rw-r--r--	2016-10-10 17:36
pp_proto.h	10.81 KB	-rw-r--r--	2014-12-27 11:49
pp_sort.c	64.99 KB	-r--r--r--	2014-12-27 11:49
pp_sort.o	25.86 KB	-rw-r--r--	2016-10-10 17:36
pp_sys.c	128.85 KB	-r--r--r--	2015-01-11 14:03
pp_sys.o	145.77 KB	-rw-r--r--	2016-10-10 17:36
proto.h	275.69 KB	-rw-r--r--	2014-12-27 11:49
realclean.sh	46.47 KB	-rw-r--r--	2016-10-10 19:19
reentr.c	15.59 KB	-rw-r--r--	2014-12-27 11:49
reentr.h	76.44 KB	-rw-r--r--	2014-12-27 11:49
reentr.o	1.52 KB	-rw-r--r--	2016-10-10 17:36
regcharclass.h	52.42 KB	-rw-r--r--	2014-12-27 11:49
regcomp.c	610.17 KB	-r--r--r--	2015-01-10 13:15
regcomp.h	37.6 KB	-r--r--r--	2014-12-27 11:49
regcomp.o	220.61 KB	-rw-r--r--	2016-10-10 17:36
regcomp.sym	11.89 KB	-r--r--r--	2014-12-27 11:49
regen.pl	862 B	-r--r--r--	2014-12-27 11:49
regen_perly.pl	9 KB	-r--r--r--	2014-12-27 11:49
regexec.c	291.97 KB	-r--r--r--	2014-12-27 11:49
regexec.o	109.56 KB	-rw-r--r--	2016-10-10 17:36
regexp.h	31.38 KB	-r--r--r--	2014-12-27 11:49
regnodes.h	34.54 KB	-rw-r--r--	2014-12-27 11:49
run.c	1.53 KB	-r--r--r--	2014-12-27 11:49
run.o	1.59 KB	-rw-r--r--	2016-10-10 17:36
runtests	1.09 KB	-rwxr-xr-x	2016-10-10 17:34
runtests.SH	1.79 KB	-r-xr-xr-x	2014-12-27 11:49
scope.c	36.35 KB	-r--r--r--	2014-12-27 11:49
scope.h	11.64 KB	-r--r--r--	2014-12-27 11:49
scope.o	29.58 KB	-rw-r--r--	2016-10-10 17:36
sv.c	408.23 KB	-r--r--r--	2015-01-15 22:12
sv.h	80.16 KB	-r--r--r--	2015-01-15 22:12
sv.o	166.73 KB	-rw-r--r--	2016-10-10 17:36
taint.c	4.91 KB	-r--r--r--	2014-12-27 11:49
taint.o	5.8 KB	-rw-r--r--	2016-10-10 17:36
thread.h	11.53 KB	-r--r--r--	2014-12-27 11:49
time64.c	15.29 KB	-r--r--r--	2014-12-27 11:49
time64.h	1.57 KB	-r--r--r--	2014-12-27 11:49
time64_config.h	1.98 KB	-r--r--r--	2014-12-27 11:49
toke.c	350.24 KB	-r--r--r--	2015-01-24 15:03
toke.o	274.02 KB	-rw-r--r--	2016-10-10 17:36
uconfig.h	144.22 KB	-rw-r--r--	2014-12-27 11:49
uconfig.sh	15.69 KB	-r--r--r--	2014-12-27 11:49
uconfig64.sh	15.73 KB	-r--r--r--	2014-12-27 11:49
unicode_constants.h	2.12 KB	-r--r--r--	2014-12-27 11:49
universal.c	24.91 KB	-r--r--r--	2014-12-27 11:49
universal.o	45.73 KB	-rw-r--r--	2016-10-10 17:36
unixish.h	4.48 KB	-r--r--r--	2014-12-27 11:49
utf8.c	135.85 KB	-r--r--r--	2014-12-27 12:10
utf8.h	29.3 KB	-r--r--r--	2014-12-27 11:49
utf8.o	77.52 KB	-rw-r--r--	2016-10-10 17:36
utfebcdic.h	45.12 KB	-r--r--r--	2014-12-27 11:49
util.c	138.18 KB	-r--r--r--	2014-12-27 12:20
util.h	2.53 KB	-r--r--r--	2014-12-27 11:49
util.o	70.16 KB	-rw-r--r--	2016-10-10 17:36
utils.lst	623 B	-r--r--r--	2014-12-27 11:49
uudmap.h	904 B	-rw-r--r--	2016-10-10 17:36
veryclean.sh	46.47 KB	-rw-r--r--	2016-10-10 19:19
vutil.c	25.44 KB	-r--r--r--	2014-12-27 11:49
vutil.h	7.06 KB	-r--r--r--	2014-12-27 11:49
vxs.inc	10.91 KB	-r--r--r--	2014-12-27 11:49
warnings.h	4.94 KB	-rw-r--r--	2014-12-27 11:49
write_buildcustomize.pl	3.01 KB	-r--r--r--	2014-12-27 11:49

Rename

#!/usr/bin/perl
# These two should go upon release to make the script Perl 5.005 compatible
use strict;
use warnings;

=head1 NAME

make_patchnum.pl - make patchnum

=head1 SYNOPSIS

miniperl make_patchnum.pl

perl make_patchnum.pl

=head1 DESCRIPTION

This program creates the files holding the information
about locally applied patches to the source code. The created
files are  F<git_version.h> and F<lib/Config_git.pl>.

=head2 F<lib/Config_git.pl>

Contains status information from git in a form meant to be processed
by the tied hash logic of Config.pm. It is actually optional,
although -V:git.\* will be uninformative without it.

C<git_version.h> contains similar information in a C header file
format, designed to be used by patchlevel.h. This file is obtained
from stock_git_version.h if miniperl is not available, and then
later on replaced by the version created by this script.

=head1 AUTHOR

Yves Orton, Kenichi Ishigaki, Max Maischein

=head1 COPYRIGHT

Same terms as Perl itself.

=cut

# from a -Dmksymlink target dir, I need to cd to the git-src tree to
# use git (like script does).  Presuming that's not unique, one fix is
# to follow Configure's symlink-path to run git.  Maybe GIT_DIR or
# path-args can solve it, if so we should advise here, I tried only
# very briefly ('cd -' works too).

my ($subcd, $srcdir);
our $opt_v = scalar grep $_ eq '-v', @ARGV;

BEGIN {
    my $root=".";
    # test 1st to see if we're a -Dmksymlinks target dir
    $subcd = '';
    $srcdir = $root;
    if (-l "./Configure") {
	$srcdir = readlink("./Configure");
	$srcdir =~ s/Configure//;
	$subcd = "cd $srcdir &&"; # activate backtick fragment
    }
    while (!-e "$root/perl.c" and length($root)<100) {
        if ($root eq '.') {
            $root="..";
        } else {
            $root.="/..";
        }
    }
    die "Can't find toplevel" if !-e "$root/perl.c";
    sub path_to { "$root/$_[0]" } # use $_[0] if this'd be placed in toplevel.
}

sub read_file {
    my $file = path_to(@_);
    return "" unless -e $file;
    open my $fh, '<', $file
        or die "Failed to open for read '$file':$!";
    return do { local $/; <$fh> };
}

sub write_file {
    my ($file, $content) = @_;
    $file= path_to($file);
    open my $fh, '>', $file
        or die "Failed to open for write '$file':$!";
    print $fh $content;
    close $fh;
}

sub backtick {
    # only for git.  If we're in a -Dmksymlinks build-dir, we need to
    # cd to src so git will work .  Probably a better way.
    my $command = shift;
    if (wantarray) {
        my @result= `$subcd $command`;
        #warn "$subcd $command: \$?=$?\n" if $?;
        print "#> $subcd $command ->\n @result\n" if !$? and $opt_v;
        chomp @result;
        return @result;
    } else {
        my $result= `$subcd $command`;
        $result="" if ! defined $result;
        warn "$subcd $command: \$?=$?\n" if $?;
        print "#> $subcd $command ->\n $result\n" if !$? and $opt_v;
        chomp $result;
        return $result;
    }
}

sub write_files {
    my %content= map { /WARNING: '([^']+)'/ || die "Bad mojo!"; $1 => $_ } @_;
    my @files= sort keys %content;
    my $files= join " and ", map { "'$_'" } @files;
    foreach my $file (@files) {
        if (read_file($file) ne $content{$file}) {
            print "Updating $files\n";
            write_file($_,$content{$_}) for @files;
            return 1;
        }
    }
    print "Reusing $files\n";
    return 0;
}

my $unpushed_commits = '    ';
my ($read, $branch, $snapshot_created, $commit_id, $describe)= ("") x 5;
my ($changed, $extra_info, $commit_title)= ("") x 3;

if (my $patch_file= read_file(".patch")) {
    ($branch, $snapshot_created, $commit_id, $describe) = split /\s+/, $patch_file;
    $extra_info = "git_snapshot_date='$snapshot_created'";
    $commit_title = "Snapshot of:";
}
elsif (-d "$srcdir/.git") {
    # git branch | awk 'BEGIN{ORS=""} /\*/ { print $2 }'
    ($branch) = map { /\* ([^(]\S*)/ ? $1 : () } backtick("git branch");
    $branch //= "";
    my ($remote,$merge);
    if (length $branch) {
        $merge= backtick("git config branch.$branch.merge");
        $merge = "" unless $? == 0;
        $merge =~ s!^refs/heads/!!;
        $remote= backtick("git config branch.$branch.remote");
        $remote = "" unless $? == 0;
    }
    $commit_id = backtick("git rev-parse HEAD");
    $describe = backtick("git describe");
    my $commit_created = backtick(qq{git log -1 --pretty="format:%ci"});
    $extra_info = "git_commit_date='$commit_created'";
    backtick("git diff --no-ext-diff --quiet --exit-code");
    $changed = $?;
    unless ($changed) {
        backtick("git diff-index --cached --quiet HEAD --");
        $changed = $?;
    }

if (length $branch && length $remote) {
        # git cherry $remote/$branch | awk 'BEGIN{ORS=","} /\+/ {print $2}' | sed -e 's/,$//'
        my $unpushed_commit_list =
            join ",", map { (split /\s/, $_)[1] }
            grep {/\+/} backtick("git cherry $remote/$merge");
        # git cherry $remote/$branch | awk 'BEGIN{ORS="\t\\\\\n"} /\+/ {print ",\"" $2 "\""}'
        $unpushed_commits =
            join "", map { ',"'.(split /\s/, $_)[1]."\"\t\\\n" }
            grep {/\+/} backtick("git cherry $remote/$merge");
        if (length $unpushed_commits) {
            $commit_title = "Local Commit:";
            my $ancestor = backtick("git rev-parse $remote/$merge");
            $extra_info = "$extra_info
git_ancestor='$ancestor'
git_remote_branch='$remote/$merge'
git_unpushed='$unpushed_commit_list'";
        }
    }
    if ($changed) {
        $commit_title =  "Derived from:";
    }
    $commit_title ||= "Commit id:";
}

# we extract the filename out of the warning header, so don't mess with that
write_files(<<"EOF_HEADER", <<"EOF_CONFIG");
/**************************************************************************
* WARNING: 'git_version.h' is automatically generated by make_patchnum.pl
*          DO NOT EDIT DIRECTLY - edit make_patchnum.pl instead
***************************************************************************/
@{[$describe ? "#define PERL_PATCHNUM \"$describe\"" : ()]}
#define PERL_GIT_UNPUSHED_COMMITS\t\t\\
$unpushed_commits/*leave-this-comment*/
@{[$changed ? "#define PERL_GIT_UNCOMMITTED_CHANGES" : ()]}
EOF_HEADER
######################################################################
# WARNING: 'lib/Config_git.pl' is generated by make_patchnum.pl
#          DO NOT EDIT DIRECTLY - edit make_patchnum.pl instead
######################################################################
\$Config::Git_Data=<<'ENDOFGIT';
git_commit_id='$commit_id'
git_describe='$describe'
git_branch='$branch'
git_uncommitted_changes='$changed'
git_commit_id_title='$commit_title'
$extra_info
ENDOFGIT
EOF_CONFIG
# ex: set ts=8 sts=4 sw=4 et ft=perl: