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-rw-r--r--absl/time/internal/test_util.cc3
-rw-r--r--absl/time/time.h3
2 files changed, 4 insertions, 2 deletions
diff --git a/absl/time/internal/test_util.cc b/absl/time/internal/test_util.cc
index 59166a7..fbddbb7 100644
--- a/absl/time/internal/test_util.cc
+++ b/absl/time/internal/test_util.cc
@@ -116,7 +116,10 @@ std::unique_ptr<cctz::ZoneInfoSource> TestFactory(
} // namespace
+#if !defined(__MINGW32__)
+// MinGW does not support the weak symbol extension mechanism.
ZoneInfoSourceFactory zone_info_source_factory = TestFactory;
+#endif
} // namespace cctz_extension
} // namespace time_internal
diff --git a/absl/time/time.h b/absl/time/time.h
index 46ac26b..be06481 100644
--- a/absl/time/time.h
+++ b/absl/time/time.h
@@ -1412,8 +1412,7 @@ constexpr Duration FromInt64(int64_t v, std::ratio<3600>) {
// IsValidRep64<T>(0) is true if the expression `int64_t{std::declval<T>()}` is
// valid. That is, if a T can be assigned to an int64_t without narrowing.
template <typename T>
-constexpr auto IsValidRep64(int)
- -> decltype(int64_t{std::declval<T>()}, bool()) {
+constexpr auto IsValidRep64(int) -> decltype(int64_t{std::declval<T>()} == 0) {
return true;
}
template <typename T>