On Thu, 14 Jul 2016 17:41:45 +0200 Daniel Llorens <daniel.llor...@bluewin.ch> wrote: [snip] > I think we'd want C89/C90 users to still be able to #include > <libguile.h>. Dunno.
libguile.h can also at present be included in C++89/03/11/14 code by design - all the necessary "extern C" stuff is there. I would hope that would continue, but some C99 things, such as variable length arrays, designated initializers, the _Complex type, the restrict qualifier and compound literals (except in C++11/14) are not available. There is no problem with using these in libguile implementation (*.c) code, but including them in headers will generally stop the headers being usable in C++ code. Having said that, g++ happens to accept some of these in C++ code as an extension. Chris