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extensions: port better to MINUX 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__, as the key for __EXTENSIONS__.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 06 Feb 2013 22:41:08 -0800
parents 2c4826afb7aa
children d77c98cd7cfd
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17320:2c4826afb7aa 17321:896204e6fbfc
1 2013-02-06 Paul Eggert <eggert@cs.ucla.edu> 1 2013-02-06 Paul Eggert <eggert@cs.ucla.edu>
2
3 extensions: port better to MINUX 3, HP-UX, autoheader 2.62
4 Some of these changes are merged in from git Autoconf.
5 * m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS):
6 When deciding whether to define _XOPEN_SOURCE, inspect the
7 preprocessor macro __hpux instead of the more-heavyweight
8 operation of requiring AC_CANONICAL_HOST. Define _NETBSD_HOST on
9 MINUX, for MINUX 3. Use USE_SYSTEM_EXTENSIONS, not __EXTENSIONS__,
10 as the key for __EXTENSIONS__.
2 11
3 unistd: avoid namespace pollution on non-glibc systems 12 unistd: avoid namespace pollution on non-glibc systems
4 * lib/unistd.in.h: #define __need_getopt before including <getopt.h>. 13 * lib/unistd.in.h: #define __need_getopt before including <getopt.h>.
5 This avoids namespace pollution on non-glibc systems, by causing 14 This avoids namespace pollution on non-glibc systems, by causing
6 gnulib unistd.h to behave more like glibc unistd.h. I also hope 15 gnulib unistd.h to behave more like glibc unistd.h. I also hope