[dropping autoconf] On 01/31/2011 04:47 PM, Paul Eggert wrote: > The gnulib stdbool module currently arranges to #define HAVE_STDBOOL_H if > necessary, > but this symbol is never used. This is confusing people who port Emacs > to systems that don't run 'configure', and I'd like to remove HAVE_STDBOOL_H > from Emacs's src/config.in file. > > HAVE_STDBOOL_H is defined by Autoconf's AC_HEADER_STDBOOL (and thus by > gnulib's, > for compatibility with Autoconf). The only gnulib macro that uses > AC_HEADER_STDBOOL > is gnulib's AM_STDBOOL_H; the latter name is curious, as it implies that the > macro > belongs to Automake, but it's a gnulib macro.
Actually, you also need to be careful with the gnulib file tests/test-stdbool.h, which uses HAVE_STDBOOL_H as a pseudo-witness of whether _Bool is a compiler built-in type (since some of the things we test for are not possible with the replacement header). I gather that emacs is not using gnulib's test directory, but other projects are, so HAVE_STDBOOL_H is still needed in those cases. -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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