[cairo] AC_TRY_RUN vs crosscompile

[Enrico Weigelt, metux IT consult]

Hi folks,


just seen that we've got an AC_TRY_RUN call, which - obviously - can't
work when crosscompiling. (it just wildly guesses in that case).

It's in the CAIRO_ENABLE_SURFACE_BACKEND(xlib...) block.

What's the actual goal of that ?

It also checks for sysv-ipc headers ... is there any chance that some
system could have xlib and xext, but no sysv-ipc headers at all ?


--mtx