[Chicken-users] alloca on MinGW

[Brandon J. Van Every]

Brandon J. Van Every wrote:
> felix winkelmann wrote:
> > (Oh boy, does your system have alloca.h? Cmake should detect that).
>
> It does, but maybe the test isn't beefy enough.  I'll look at it.

MinGW doesn't have alloca.h.  CMake was detecting that just fine, and 
defining HAVE_ALLOCA_H correctly in chicken-config.h.

CMake wasn't defining HAVE_ALLOCA.  I wrote a test for it.  It should 
probe alloca.h and malloc.h.

The HAVE_ALLOCA test doesn't seem to be working on MinGW.  That is, 
MinGW appears to define alloca() in malloc.h.  But, NO_OLDNAMES has to 
be undefined; uncertain whether it is or not.  I took the easy way out 
and added a MinGW-specific #include <malloc.h> to chicken.h.  This gets 
rid of the warnings about implicit declaration of alloca.


Cheers,
Brandon Van Every