https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a9fb6a22e3903fe6fa1417a82218f53bd0a2de05 commit a9fb6a22e3903fe6fa1417a82218f53bd0a2de05 Author: Corinna Vinschen <corinna@vinschen.de> Date: Tue Mar 1 10:14:42 2022 +0100 Cygwin: sysconf: _SC_TZNAME_MAX: return -1 as valid value sysconf incorrectly sets errno to EINVAL for _SC_TZNAME_MAX. Don't do that. Signed-off-by: Corinna Vinschen <corinna@vinschen.de> Diff: --- winsup/cygwin/sysconf.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/winsup/cygwin/sysconf.cc b/winsup/cygwin/sysconf.cc index 70cdb0fbd..8240db2e4 100644 --- a/winsup/cygwin/sysconf.cc +++ b/winsup/cygwin/sysconf.cc @@ -527,7 +527,7 @@ static struct {cons, {c:SEM_VALUE_MAX}}, /* 17, _SC_SEM_VALUE_MAX */ {cons, {c:SIGQUEUE_MAX}}, /* 18, _SC_SIGQUEUE_MAX */ {cons, {c:TIMER_MAX}}, /* 19, _SC_TIMER_MAX */ - {nsup, {c:0}}, /* 20, _SC_TZNAME_MAX */ + {cons, {c:-1L}}, /* 20, _SC_TZNAME_MAX */ {cons, {c:_POSIX_ASYNCHRONOUS_IO}}, /* 21, _SC_ASYNCHRONOUS_IO */ {cons, {c:_POSIX_FSYNC}}, /* 22, _SC_FSYNC */ {cons, {c:_POSIX_MAPPED_FILES}}, /* 23, _SC_MAPPED_FILES */