> From: Paul Eggert [mailto:egg...@cs.ucla.edu] > Sent: Wednesday, July 04, 2012 9:10 AM > To: Joachim Schmitz > Cc: bug-gnulib@gnu.org > Subject: Re: alloca in HP NonStop > > On 07/04/2012 12:05 AM, Joachim Schmitz wrote: > > Still missing seems the detection of this by configure? > > As things stand, I don't see why 'configure' needs to detect anything. You > mentioned the possibility of it detecting <builtins.h> but the code works fine > without needing HAVE_BUILTINS_H. So I assume this issue is OK as-is; if not > please let us know.
Without changes configure does not detect that we do have a working alloca and then uses gnulib's implementation from alloca.c: ... checking for working alloca.h... no checking for alloca... no <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< checking whether `alloca.c' needs Cray hooks... no checking stack direction for C alloca... -1 checking for C/C++ restrict keyword... restrict ... Oh, I see alloca.c internaly skips all code if, after #include <alloca.h> alloca is defined, so I guess I can rest my case... Got confused by the above configure output. Bye, Jojo
