[Python-Dev] cpython (3.3): ctypes: AIX needs an explicit #include <alloca.h> to get alloca() (original) (raw)
Christian Heimes christian at python.org
Tue Jun 18 13:45:05 CEST 2013
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Am 18.06.2013 13:32, schrieb Victor Stinner:
2013/6/18 Christian Heimes <christian at python.org>:
Am 18.06.2013 12:56, schrieb Jeremy Kloth:
On Mon, Jun 17, 2013 at 2:02 PM, victor.stinner
+#include <alloca.h>
This header is not present on Windows, thus breaking all the Windows buildbots. Perhaps it should be wrapped in an AIX-specific #ifdef? Oh really? Portability is complex :-) I only tested on Linux, but I expected this header to be part of the C standard...
It's neither C99 nor POSIX.1-2001. I guess it's just too fragile and not portable enough. http://c-faq.com/malloc/alloca.html
I have added HAVEALLOCAH to configure:
http://hg.python.org/cpython/rev/7b6ae19dd116 Cool, thanks.
You are welcome. alloca() is documented to require <alloca.h>. It merely works with GCC because the compiler translates the function call to inline code.
Christian
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