diff options
Diffstat (limited to 'Source/cmTimestamp.cxx')
| -rw-r--r-- | Source/cmTimestamp.cxx | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Source/cmTimestamp.cxx b/Source/cmTimestamp.cxx index 14cf6e9..da5d21e 100644 --- a/Source/cmTimestamp.cxx +++ b/Source/cmTimestamp.cxx @@ -96,7 +96,7 @@ time_t cmTimestamp::CreateUtcTimeTFromTm(struct tm& tm) const // From Linux timegm() manpage. std::string tz_old; - cmSystemTools::GetEnv("TZ", tz_old); + bool const tz_was_set = cmSystemTools::GetEnv("TZ", tz_old); tz_old = "TZ=" + tz_old; // The standard says that "TZ=" or "TZ=[UNRECOGNIZED_TZ]" means UTC. @@ -109,7 +109,17 @@ time_t cmTimestamp::CreateUtcTimeTFromTm(struct tm& tm) const time_t result = mktime(&tm); +# ifdef CMAKE_BUILD_WITH_CMAKE + if (tz_was_set) { + cmSystemTools::PutEnv(tz_old); + } else { + cmSystemTools::UnsetEnv("TZ"); + } +# else + // No UnsetEnv during bootstrap. This is good enough for CMake itself. cmSystemTools::PutEnv(tz_old); + static_cast<void>(tz_was_set); +# endif tzset(); |