On Tue, 29 Jun 2010, Russ Allbery wrote:
I suspect that you're dealing with "all the world is Linux" code, and therefore doing something like: AC_CHECK_SIZEOF([long]) AS_IF([test "$ac_cv_sizeof_long" -eq 8], [AC_DEFINE([OSBIT], 64, [Define to the size of a long in bits.])], [AC_DEFINE([OSBIT], 32, [Define to the size of a long in bits.])]) would do what you want, but you won't find something exactly like that built into Autoconf since it's not generally a meaningful thing to do on a broader variety of platforms.
More specifically, this test would not be very useful for Microsoft Windows where the 'long' type is 32-bit in a 64-bit application.
There are also OSs which support various optional application models with various sizes for 'long' and pointers.
Bob -- Bob Friesenhahn bfriesen@xxxxxxxxxxxxxxxxxxx, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
