[libvirt] [PATCH] Don't use undocumented __isleap macro

From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; Pushing under build-breaker (mingw32) rule The glibc time.h header has an undocumented __isleap macro that we are using. Since it is undocumented & does not appear on any other OS, stop using it and just define the macro in libvirt code instead. * src/util/virtime.c: Remove __isleap usage --- src/util/virtime.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/src/util/virtime.c b/src/util/virtime.c index 25c2317..92b6cdd 100644 --- a/src/util/virtime.c +++ b/src/util/virtime.c @@ -113,6 +113,9 @@ const unsigned short int __mon_yday[2][13] = { { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } }; +#define is_leap_year(y) \ + ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0)) + /** * virTimeFieldsThenRaw: * @when: the time to convert in milliseconds @@ -152,7 +155,7 @@ int virTimeFieldsThenRaw(unsigned long long when, struct tm *fields) fields->tm_wday += 7; y = 1970; - while (days < 0 || days >= (__isleap (y) ? 366 : 365)) { + while (days < 0 || days >= (is_leap_year(y) ? 366 : 365)) { /* Guess a corrected year, assuming 365 days per year. */ long int yg = y + days / 365 - (days % 365 < 0); @@ -165,7 +168,7 @@ int virTimeFieldsThenRaw(unsigned long long when, struct tm *fields) fields->tm_year = y - 1900; fields->tm_yday = days; - ip = __mon_yday[__isleap(y)]; + ip = __mon_yday[is_leap_year(y)]; for (y = 11; days < (long int) ip[y]; --y) continue; days -= ip[y]; -- 1.7.6.4