Unix systems must have this header but Windows does not have it at all.
Since src/nvim/os/unix_defs.h includes <unistd.h> without the guard
in order to avoid including this in the numerous places we would
need <unistd.h> on Unix we just include src/nvim/os/os.h which will pull
in <unistd.h> for us.
In Vim, at least the constant `I_PUSH` is used from <stropts.h>, but
Neovim doesn't seem to use anything from said header.
Besides that, POSIX.1-2008[1] marks this header as obsolescent, and
there don't seem to be many platforms that even have it.
[1]: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/stropts.h.html#tag_13_52_11
Windows does not have setenv(), instead the _putenv_s() function is used - added
a function check and fatal errors. Implemented os_setenv() for Windows.
Vim supports the original putenv() function if no alternative is available.
Neovim only supports systems where safer alternatives exist, so the check for
putenv() was removed from config/CMakeLists.txt.
If nvim is built from a non-tagged commit, the truncated commit hash is
already appended to the main version string (e.g., "NVIM v0.1.0-83-g959f260 ..."),
making the "Commit:" field redundant.
Regarding the truncated hash length: we don't have nearly enough commits
to worry about collisions, and probably won't ever, so the default
length should be fine.
When building in a git repo:
- If HEAD corresponds to an annotated tag, (i.e. git_get_exact_tag()
returns truthy) the current build is considered a "release" build:
NVIM_VERSION_MEDIUM is directly assigned the tagged version name,
and NVIM_VERSION_* defines are ignored.
- If HEAD is not a tagged release, then NVIM_VERSION_MEDIUM is
directly assigned the result of `git describe`.
If git (or the repo) is not available:
- The NVIM_VERSION_* defines are used to define NVIM_VERSION_MEDIUM.
Sample outputs for `nvim --version` and `nvim +version`:
Building with git @ non-tagged commit e66df14:
NVIM v0.1.0-1-ge66df14 (compiled Nov 1 2015 19:10:30)
Commit: e66df148f9401be17adab324a6e41d927aae20b3
Building with git @ v0.1.1 tag:
NVIM v0.1.1 (compiled Nov 1 2015 19:03:52)
[no "Commit:" line]
Building this commit _not_ in a git repo:
NVIM 0.1.0-dev (compiled Nov 1 2015 19:16:11)
[no "Commit:" line]
* Hide commit information from --version if we can't find any (e.g. when
building from tarball).
To define a release in CMake, set NVIM_VERSION_PRERELEASE to "".
This will modify --version output to:
* Show annotated Git tag instead of commit hash (NVIM_VERSION_COMMIT).
* Hide commit date (NVIM_VERSION_BUILD).
RETSIGTYPE, SIGRETURN, and SIGDEFARG are always defined the same, so
inline them for simplicity; SIGDUMMYARG, however, is unused, so remove
it.
Even if these things don't work on windows, the signal handler in
if_cscope.c is already wrapped with '#idef UNIX', as is its only call
site.
Reviewed-by: Justin M. Keyes <justinkz@gmail.com>
Removed unneeded platform checks from config/config.h.in and
config/CMakeLists.txt
- HAVE_OSPEED and HAVE_UP_BC_PC were used by the old UI, and are
no longer needed.
- sigvec() was used as part of the signal handling code in os_unix.c, but it is
no longer used in Neovim.
- The function lstat() is no longer used, replaced with libuv.
* Set JEMALLOC_NO_DEMANGLE to be able to use `je_*` functions,
regardless of how jemalloc was compiled (--with-jemalloc-prefix)
* Show jemalloc information in Neovim's version output.
Resolve#2449.
- In UNIX systems where unsetenv() is available, it is used. Otherwise
the variables are set with the empty string.
- New check HAVE_UNSETENV for unsetenv()
- Added unit test to env_spec.lua
Jemalloc will be used if the cmake option `USE_JEMALLOC` is enabled(which is the
default). To avoid trouble with clang's ASAN, it is disabled by default if the
`SANITIZE` option is enabled.
Since jemalloc has thread cache for small objects, it fills the gap created by
removing klib memory pools.
The `xstrdup` funciton(memory.c) had to be reimplemented on top of `xmalloc` to
make it work with a custom allocator.
- Remove abstract_ui global, now it is always active
- Remove some terminal handling code
- Remove unused functions
- Remove HAVE_TGETENT/TERMINFO/TERMIOS/IOCTL #ifdefs
- Remove tgetent/terminfo from version.c
- Remove curses/terminfo dependencies
- Only start/stop termcap when starting/exiting the program
- msg_use_printf will return true if there are no attached UIs(
messages will be written to stdout)
- Remove `ex_winpos`(implement `:winpos` with `ex_ni`)
Problem : Argument cannot be negative @ 1165.
Diagnostic : Real issue.
Rationale : len can be assigned a negative value @ 1162;
len is passed as an unsigned argument @ 1165.
Resolution : Refactor variable's types:
- Use ftello instead of ftell to avoid using long.
- Assert ftello result is safely convertible to size_t.
- Introduce variable read_size to avoid using i (int).
Problem : Operands don't affect results (CONSTANT_EXPRESSION_RESULT).
Diagnostic : Harmless issue.
Rationale : n >= LONG_MIN, n being intmax_t, is always true for
architectures where sizeof(intmax_t) == sizeof(long).
Resolution : Add sizes check.
put_time() had a complicated implementation, because of having to shift
an 8-byte value in a portable way with old means.
That can be greatly simplified now, using a C99 fixed-size type.
Can't reliably get this information from cmake (#1267), so it's
misleading to show these messages at all. We can always revert this
commit if we find a way later.
- cmake: git_timestamp() returns last commit time formatted as
`YYYYMMddHHmm`.
- Always include commit hash in :version and --version output.
`nvim --version` sample output:
NVIM 0.0.0-alpha+201410070245 (compiled Oct 7 2014 05:30:45)
Commit: f747b2b1ff7bfe7eb00cc2be82d7af87c98f1111
- Defined CMake checks for all headers in config.h.in
- Removed headers checks that are not used anymore:
sgtty.h sys/statfs.h libintl.h poll.h
- Added UNIX check
- Add some fatal checks
+ Check for setenv() and fail if it does not exist
since our os layer just assumes it does
+ lstat is required by os_unix.c
+ sys/wait.h is required in UNIX
- Removed entries for functions that are not being used: getcwd,
getrlimit, getwd, nanosleep, sigaltstack, getwd, sigstack, fseeko
- Replaced nearly all defines in config.h.in for functions with
compile time checks
- Add check for symbol FD_CLOEXEC
- Add check for langinfo CODESET
- HAVE_ICONV_H and HAVE_ICONV hold the expected checks but Neovim uses
USE_ICONV define to actually decide whether to enable it
- Removed checks that are no longer needed
+ USEMEMMOVE
+ _FILE_OFFSET_BITS
+ HAVE_ST_BLKSIZE
+ dlfcn.h
