>>>>> "Alexandre" == Alexandre Oliva <[EMAIL PROTECTED]> writes:
Alexandre> Yup. But you can only use -isystem if your compile is gcc.
Alexandre> It's probably a good idea to test whether the compiler
Alexandre> supports the flag before using it.
Yes, that's how I should do it.
>> However, before, implementing that, I wonder whether this has
>> already been done (right) for some other C++ programs, using
>> autoconf 2.13.
Alexandre> I believe DDD already does it.
>> A particular question that I have is whether this -isystem flag is
>> a GNU extension, and in which gcc versions it can be found.
Alexandre> I'm not sure whether there are GCC versions that don't
Alexandre> support it. In any case, it's best to check whether it's
Alexandre> supported before using it.
Anyway, it seems that gcc version that do not support it would not be
able to compile LyX either (we need >= 2.8.x).
Thank you very much for the answer and the pointer to ddd.
JMarc
