glibc/stdlib
Zack Weinberg fd860eaaa8 Remove __need macros from errno.h (__need_Emath, __need_error_t).
This is fairly complicated, not because the users of __need_Emath and
__need_error_t have complicated requirements, but because the core
changes had a lot of fallout.

__need_error_t exists for gnulib compatibility in argz.h and argp.h.
error_t itself is a Hurdism, an enum containing all the E-constants,
so you can do 'p (error_t) errno' in gdb and get a symbolic value.
argz.h and argp.h use it for function return values, and they want to
fall back to 'int' when that's not available.  There is no reason why
these nonstandard headers cannot just go ahead and include all of
errno.h; so we do that.

__need_Emath is defined only by .S files; what they _really_ need is
for errno.h to avoid declaring anything other than the E-constants
(e.g. 'extern int __errno_location(void);' is a syntax error in
assembly language). This is replaced with a check for __ASSEMBLER__ in
errno.h, plus a carefully documented requirement for bits/errno.h not
to define anything other than macros.  That in turn has the
consequence that bits/errno.h must not define errno - fortunately, all
live ports use the same definition of errno, so I've moved it to
errno.h.  The Hurd bits/errno.h must also take care not to define
error_t when __ASSEMBLER__ is defined, which involves repeating all of
the definitions twice, but it's a generated file so that's okay.

	* stdlib/errno.h: Remove __need_Emath and __need_error_t logic.
	Reorganize file.  Declare errno here.  When __ASSEMBLER__ is
	defined, don't declare anything other than the E-constants.

	* include/errno.h: Change conditional for exposing internal
	declarations to (not _ISOMAC and not __ASSEMBLER__).
	* bits/errno.h: Remove logic for __need_Emath.  Document
	requirements for a port-specific bits/errno.h.

	* sysdeps/unix/sysv/linux/bits/errno.h
	* sysdeps/unix/sysv/linux/alpha/bits/errno.h
	* sysdeps/unix/sysv/linux/hppa/bits/errno.h
	* sysdeps/unix/sysv/linux/mips/bits/errno.h
	* sysdeps/unix/sysv/linux/sparc/bits/errno.h:
	Add multiple-include guard and check against improper inclusion.
	Remove __need_Emath logic.  Don't declare errno here.  Ensure all
	constants are defined as simple integer literals.  Consistent
	formatting.
	* sysdeps/mach/hurd/errnos.awk: Likewise.  Only define error_t and
	enum __error_t_codes if __ASSEMBLER__ is not defined.
	* sysdeps/mach/hurd/bits/errno.h: Regenerate.

	* argp/argp.h, string/argz.h: Don't define __need_error_t before
	including errno.h.
	* sysdeps/i386/i686/fpu/multiarch/s_cosf-sse2.S
	* sysdeps/i386/i686/fpu/multiarch/s_sincosf-sse2.S
	* sysdeps/i386/i686/fpu/multiarch/s_sinf-sse2.S
	* sysdeps/x86_64/fpu/s_cosf.S
	* sysdeps/x86_64/fpu/s_sincosf.S
	* sysdeps/x86_64/fpu/s_sinf.S:
	Just include errno.h; don't define __need_Emath or include
	bits/errno.h directly.
2017-06-14 08:14:34 -04:00
..
bits Remove C++ namespace handling from glibc headers. 2017-03-16 13:31:57 +00:00
sys Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
a64l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
abort.c Remove __need macros from signal.h. 2017-05-20 19:04:43 -04:00
abs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
add_n.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
addmul_1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
alloca.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
at_quick_exit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atexit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atof.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atoi.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atol.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atoll.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsearch.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bug-fmtmsg1.c
bug-getcontext.c Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
bug-strtod2.c Refactor strtod tests 2016-10-25 17:05:47 -02:00
bug-strtod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
canonicalize.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
cmp.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
cxa_at_quick_exit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
cxa_atexit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
cxa_finalize.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
cxa_thread_atexit_impl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dbl2mpn.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Depend
div.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
divmod_1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
divrem.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
drand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
drand48-iter.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
drand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
erand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
erand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
errno.h Remove __need macros from errno.h (__need_Emath, __need_error_t). 2017-06-14 08:14:34 -04:00
exit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
exit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fmtmsg.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fmtmsg.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fpioconst.c float128: Extend the power of ten tables 2017-06-07 16:58:42 -03:00
fpioconst.h float128: Add strfromf128 2017-06-07 17:08:21 -03:00
gen-fpioconst.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gen-tst-strtod-round.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getcontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getentropy.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getenv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getrandom.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getsubopt.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gmp-impl.h float128: Add conversion from float128 to mpn 2017-06-07 17:03:43 -03:00
gmp.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
grouping.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
grouping.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
groupingwc.c
inlines.c
isomac.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jrand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jrand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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labs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lcong48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lcong48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ldbl2mpn.c
ldiv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
llabs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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longlong.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lrand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lrand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lshift.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
makecontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile float128: Add strtof128, wcstof128, and related functions. 2017-06-12 14:48:53 -03:00
mblen.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mbstowcs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mbtowc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mod_1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
monetary.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mp_clz_tab.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mpn2dbl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mpn2flt.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mpn2ldbl.c
mrand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mrand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
msort.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mul_1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mul_n.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mul.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
nrand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
nrand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
old_atexit.c
on_exit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
putenv.c Remove the str(n)dup inlines from string/bits/string2.h. Although inlining 2017-03-13 18:45:42 +00:00
qsort.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
quick_exit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rand_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rand.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
random_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
random.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rpmatch.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rshift.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
secure-getenv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
seed48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
seed48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setcontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setenv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
srand48_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
srand48.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stdlib.h float128: Add strtof128, wcstof128, and related functions. 2017-06-12 14:48:53 -03:00
strfmon_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strfmon.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strfrom-skeleton.c float128: Add strfromf128 2017-06-07 17:08:21 -03:00
strfromd.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strfromf.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strfroml.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_nan_double.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_nan_float.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_nan_main.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_nan_narrow.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_nan_wide.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod_nan.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtof_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtof_nan.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtof.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoimax.c
strtol_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtol.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtold_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtold_nan.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtold.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoll_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoll.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoul_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoul.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoull_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoull.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strtoumax.c
sub_n.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
submul_1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
swapcontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
system.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tens_in_limb.c
test-a64l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
test-canon2.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
test-canon.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
testdiv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
testdiv.input
testmb2.c
testmb.c
testrand.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
testsort.c
tst-atof1.c
tst-atof2.c
tst-bsearch.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-empty-env.c Fix environment traversal when an envvar value is empty 2017-01-20 00:45:09 +05:30
tst-environ.c Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
tst-fmtmsg.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-fmtmsg.sh Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-getrandom.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-limits.c Fix a couple of -Wundef warnings. 2014-12-29 23:14:38 -05:00
tst-makecontext2.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-makecontext3.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-makecontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-putenv.c
tst-putenvmod.c
tst-qsort2.c
tst-qsort.c
tst-quick_exit.cc Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-rand48-2.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-rand48.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-random2.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-random.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-secure-getenv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-setcontext2.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-setcontext3.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-setcontext3.sh Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-setcontext.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strfmon_l.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strfrom-locale.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strfrom.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strfrom.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtod1i.c Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
tst-strtod2.c
tst-strtod3.c
tst-strtod4.c
tst-strtod5.c Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
tst-strtod5i.c Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
tst-strtod6.c Refactor strtod tests 2016-10-25 17:05:47 -02:00
tst-strtod-nan-locale-main.c float128: Add strtof128, wcstof128, and related functions. 2017-06-12 14:48:53 -03:00
tst-strtod-nan-locale.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtod-overflow.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtod-round-data Fix strtof decimal rounding close to half least subnormal (bug 18247). 2015-04-10 20:45:30 +00:00
tst-strtod-round-data.h Make strtod raise "inexact" exceptions (bug 19380). 2016-10-28 00:40:23 +00:00
tst-strtod-round-skeleton.c float128: Add strtof128, wcstof128, and related functions. 2017-06-12 14:48:53 -03:00
tst-strtod-round.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtod-underflow.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtod.c Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
tst-strtod.h float128: Add strtof128, wcstof128, and related functions. 2017-06-12 14:48:53 -03:00
tst-strtol-locale-main.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtol-locale.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-strtol.c Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
tst-strtoll.c Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
tst-system.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-thread-quick_exit.cc Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-tininess.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-tls-atexit-lib.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-tls-atexit-nodelete.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-tls-atexit.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-unsetenv1.c
tst-width-stdint.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-width.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-xpg-basename.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ucontext.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
udiv_qrnnd.c
Versions Do not use wildcard symbol names for public versions in Versions files. 2017-04-20 20:35:21 +00:00
wcstoimax.c
wcstombs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcstoumax.c
wctomb.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xpg_basename.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00