[Octave-patch-tracker] [patch #8906] configure check support for c11 and c++11

[Carnë Draug]

Follow-up Comment #13, patch #8906 (project octave):

> Why does this macro use _AC_COMPILE_IFELSE instead of AC_COMPILE_IFELSE?

That's how it is in autoconf and I wanted to keep it as similar as possible to
get no surprises once we can actually use the autoconf macros. The only
difference in _AC_COMPILE_IFELSE is that it doesn't require a compiler to be
selected yet.

> We normally omit the '()' when invoking autoconf macros that don't take
arguments, so I see no reason to be different in this case. 

Sure. I can make that change.

I found out one other change that is required. These calls must be made before
AC_PROG_CXXCPP and AC_PROG_CCPP in order to include the right flags in the
preprocessor.

I have attached a revised cset.

(file #36388)
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Additional Item Attachment:

File name: cxx11-c11-support-v2.cset      Size:19 KB


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