Rich Felker
937822abb6
previously, the contents of the TZ variable were considered a candidate for a file/path name only if they began with a colon or contained a slash before any comma. the latter was very sloppy logic to avoid treating any valid POSIX TZ string as a file name, but it also triggered on values that are not valid POSIX TZ strings, including 3-letter timezone names without any offset. instead, only treat the TZ variable as POSIX form if it begins with a nonzero standard time name followed by +, -, or a digit. also, special case GMT and UTC to always be treated as POSIX form (with implicit zero offset) so that a stray file by the same name cannot break software that depends on setting TZ=GMT or TZ=UTC.
musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/