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Require an exact Autoconf version.

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Roland McGrath 2012-11-02 11:19:27 -07:00
parent d7d08bdede
commit f7934be8f6
3 changed files with 18 additions and 1 deletions
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7
ChangeLog
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2012-11-02 Roland McGrath <roland@hack.frob.com>
* aclocal.m4 (GLIBC_AUTOCONF_VERSION): New macro.
Check that AC_AUTOCONF_VERSION matches it and m4_fatal at
autoconf-time if not.
* configure.in: Remove AC_PREREQ.
2012-11-02 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* sysdeps/powerpc/sys/platform/ppc.h (__ppc_get_timebase): Use

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aclocal.m4 vendored
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dnl We require that everyone use exactly the same Autoconf version so that
dnl the internal functions defined and used by the main configure script
dnl match those expected by the fragments.
m4_define([GLIBC_AUTOCONF_VERSION], [2.68])
m4_if(m4_defn([AC_AUTOCONF_VERSION]), GLIBC_AUTOCONF_VERSION, [],
[m4_fatal(m4_flatten(
Exactly version GLIBC_AUTOCONF_VERSION of Autoconf is required but you have
m4_defn([AC_AUTOCONF_VERSION])
), [63])])dnl
dnl
dnl We define the macro GLIBC_PROVIDES to do an AC_PROVIDE for each macro
dnl which appears in configure.in before the sysdep configure scripts are run.
dnl Each sysdep configure.in does GLIBC_PROVIDES first, to avoid any

2
configure.in
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@ -1,5 +1,5 @@
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.53)dnl dnl Minimum Autoconf version required.
dnl Note we do not use AC_PREREQ here! See aclocal.m4 for what we use instead.
AC_INIT([GNU C Library], [(see version.h)], [http://sourceware.org/bugzilla/], [glibc])
AC_CONFIG_SRCDIR([include/features.h])
AC_CONFIG_HEADERS([config.h])