Joseph Myers e4043b84c4 Fix strftime build with GCC 8. ... Building with current GCC mainline fails with: strftime_l.c: In function '__strftime_internal': strftime_l.c:719:4: error: macro expands to multiple statements [-Werror=multistatement-macros] digits = d > width ? d : width; \ ^ strftime_l.c:1260:6: note: in expansion of macro 'DO_NUMBER' DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); ^~~~~~~~~ strftime_l.c:1259:4: note: some parts of macro expansion are not guarded by this 'else' clause else ^~~~ In fact this particular instance is harmless; the code looks like: if (modifier == L_('O')) goto bad_format; else DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); and because of the goto, it doesn't matter that part of the expansion isn't under the "else" conditional. But it's also clearly bad style to rely on that. This patch changes DO_NUMBER and DO_NUMBER_SPACEPAD to use do { } while (0) to avoid such problems. Tested (full testsuite) for x86_64 (GCC 6), and with build-many-glibcs.py with GCC mainline, in conjunction with my libgcc patch <https://gcc.gnu.org/ml/gcc-patches/2017-06/msg02032.html>. * time/strftime_l.c (DO_NUMBER): Define using do { } while (0). (DO_NUMBER_SPACEPAD): Likewise.		2017-06-27 17:12:13 +00:00
..
bits/types
sys
adjtime.c
alt_digit.c
asctime.c
bug-asctime_r.c
bug-asctime.c
bug-getdate1.c
bug-mktime1.c
clock.c
clocktest.c
ctime_r.c
ctime.c
datemsk
Depend
difftime.c
dysize.c
era.c
ftime.c
getdate.c
getitimer.c
gettimeofday.c
gmtime.c
lc-time-cleanup.c
localtime.c
Makefile
mktime.c
offtime.c
setitimer.c
settimeofday.c
stime.c
strftime_l.c	Fix strftime build with GCC 8.	2017-06-27 17:12:13 +00:00
strftime.c
strptime_l.c
strptime.c
test_time.c
time.c
time.h
timegm.c
timespec_get.c
tst_wcsftime.c
tst-ftime_l.c
tst-ftime.c
tst-getdate.c
tst-mktime2.c
tst-mktime3.c
tst-mktime.c
tst-posixtz.c
tst-strftime.c
tst-strptime2.c
tst-strptime3.c
tst-strptime-whitespace.c
tst-strptime.c
tst-tzname.c
tzfile.c
tzset.c
Versions
wcsftime_l.c
wcsftime.c