2013-02-06 Paul Eggert <eggert@cs.ucla.edu>
- extensions: port better to MINUX 3, HP-UX, autoheader 2.62
+ extensions: port better to MINIX 3, HP-UX, autoheader 2.62
Some of these changes are merged in from git Autoconf.
* m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS):
When deciding whether to define _XOPEN_SOURCE, inspect the
preprocessor macro __hpux instead of the more-heavyweight
operation of requiring AC_CANONICAL_HOST. Define _NETBSD_HOST on
- MINUX, for MINUX 3. Use USE_SYSTEM_EXTENSIONS, not __EXTENSIONS__,
+ MINIX, for MINIX 3. Use USE_SYSTEM_EXTENSIONS, not __EXTENSIONS__,
as the key for __EXTENSIONS__.
unistd: avoid namespace pollution on non-glibc systems