Don't crash if tzdata not present.
treef6b4893a9ba9512e33de253d515d0d7dd1ba5567
-rw-r--r-- 1284 .gitignore
-rw-r--r-- 114 .gitmodules
drwxr-xr-x - CMake
-rw-r--r-- 4179 CMakeLists.txt
-rw-r--r-- 3228 CONTRIBUTING.md
-rw-r--r-- 117 ISSUE_TEMPLATE.md
-rw-r--r-- 3204 LICENSE.PHP
-rw-r--r-- 2803 LICENSE.ZEND
-rw-r--r-- 3689 README.md
-rwxr-xr-x 642 configure
drwxr-xr-x - hphp
drwxr-xr-x - patches
m--------- - third-party