If check_c_source_compiles() succeeded (HAVE_WORKING_LIBINTL is set)
then the result of find_xxx() doesn't matter. This happens on systems
(linux+glibc) where libintl is available passively.
This allows `find_package(LibIntl REQUIRED)` to work and will still
correctly fail (REQUIRED) on systems lacking libintl.
On some systems, such as NetBSD, the gettext header is tucked under the
gettext directory in the system include area. Let's add a path suffix
to ensure we correctly discover the header on such systems.
- 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
