This post is part 4 of the "From a diary of AArch64 porter" series:
- From a diary of AArch64 porter — autoconf
- From a diary of AArch64 porter — rpm packaging
- From a diary of AArch64 porter — testsuites
- From a diary of AArch64 porter — POSIX.1 functionality
- From a diary of AArch64 porter — PAGE_SIZE
- From a diary of AArch64 porter — vfp precision
- From a diary of AArch64 porter — system calls
- From a diary of AArch64 porter — parallel builds
- From a diary of AArch64 porter — firefighting
- From a diary of AArch64 porter — drive-by coding
- From a diary of AArch64 porter — manylinux2014
- From a diary of AArch64 porter — handling big patches
- From a diary of AArch64 porter — Arm CPU features table
During years of development GCC got several switches which are considered obsolete/deprecated now. And as such they are not available for new ports. Guess what? AArch64 has such status too.
One of switches is “-posix” one. It is not needed anymore as “_POSIX_SOURCE” macro deprecated it:
- Macro: _POSIX_SOURCE
If you define this macro, then the functionality from the POSIX.1 standard (IEEE Standard 1003.1) is available, as well as all of the ISO C facilities.
But it happens sometimes (I saw it in pdfedit 0.4.5 which is so old that it still uses Qt3). So if you find it somewhere then please save world with “
s/-posix/-D_POSIX_SOURCE/g” :)