diff options
Diffstat (limited to 'libstdc++-v3/src')
| -rw-r--r-- | libstdc++-v3/src/c++20/tzdb.cc | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/libstdc++-v3/src/c++20/tzdb.cc b/libstdc++-v3/src/c++20/tzdb.cc index 20399b9..eb68111 100644 --- a/libstdc++-v3/src/c++20/tzdb.cc +++ b/libstdc++-v3/src/c++20/tzdb.cc @@ -62,8 +62,8 @@ #if ! __cpp_constinit # if __has_cpp_attribute(clang::require_constant_initialization) # define constinit [[clang::require_constant_initialization]] -#else // YOLO -# define constinit +# else // YOLO +# define constinit # endif #endif @@ -1663,6 +1663,26 @@ namespace std::chrono if (auto tz = do_locate_zone(this->zones, this->links, name)) return tz; } + + if (ifstream tzf{"/etc/sysconfig/clock"}) + { + string line; + string_view key = "DEFAULT_TIMEZONE="; + while (std::getline(tzf, line)) + if (line.starts_with(key)) + { + string_view name = line; + name.remove_prefix(key.size()); + if (name.size() != 0 && name.front() == '"') + { + name.remove_prefix(1); + if (auto pos = name.find('"'); pos != name.npos) + name = name.substr(0, pos); + } + if (auto tz = do_locate_zone(this->zones, this->links, name)) + return tz; + } + } #else // AIX stores current zone in $TZ in /etc/environment but the value // is typically a POSIX time zone name, not IANA zone. |