OK, thanks for the info. I pushed this somewhat-different fix: doc: work around mingw-w64 alloca problem with example * doc/autoconf.texi (Particular Functions): In example code for alloca, do not re-#define alloca. This works around a mingw-w64 problem reported by Vincent Torri in <http://lists.gnu.org/archive/html/autoconf/2012-01/msg00018.html>. diff --git a/doc/autoconf.texi b/doc/autoconf.texi index 247a46c..82837a2 100644 --- a/doc/autoconf.texi +++ b/doc/autoconf.texi @@ -4863,15 +4863,15 @@ like the following, to declare it properly. #endif #ifdef HAVE_ALLOCA_H # include <alloca.h> -#elif defined __GNUC__ -# define alloca __builtin_alloca -#elif defined _AIX -# define alloca __alloca -#elif defined _MSC_VER -# include <malloc.h> -# define alloca _alloca -#else -# ifndef HAVE_ALLOCA +#elif !defined alloca +# ifdef __GNUC__ +# define alloca __builtin_alloca +# elif defined _AIX +# define alloca __alloca +# elif defined _MSC_VER +# include <malloc.h> +# define alloca _alloca +# elif !defined HAVE_ALLOCA # ifdef __cplusplus extern "C" # endif
