[PATCH] Add stdio_ext.h header

[andreasf]

Haiku appears to implement glibc's __fsetlocking function, that is being detected by some software packages. In that case, the corresponding header file stdio_ext.h should be added so that it can be used.

• CVS uses it (__fsetlocking, FSETLOCKING_BYCALLER)
• GNU gettext checks for it at least

[umccullough]

I ran into the gettext issue and Begasus pointed me here, so I attached a patch that adds a basic stdio_ext.h.

[umccullough]

stdio_ext.h file with the currently supported methods

[umccullough]

I have attached a new patch that supplies a stdio_ext.h that contains only fsetlocking() (with associated constants) and _flushlbf() as these appear to be the only methods currently implemented in Haiku.

Should allow gettext and others to compile that rely on fsetlocking() at least.

[andreasf]

Header looks okay afaict, except that it's not strictly POSIX. We might put it into 3rdparty instead.

[scottmc]

Is this patch going to get applied? CVS-1.12.13 can make use of it once it is.  http://ports.haiku-files.org/wiki/dev-util/cvs

[stippi]

I have applied the patch in r27789. Thanks! I am not the best person for POSIX stuff, but I trust your experience! If this should really be placed in 3rdparty instead, please elaborate so that I don't mess things up.