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Guard against M4 versions with a buggy strstr. 

config/:
	* override.m4: Error out if a buggy M4 was detected, to
	avoid spurious diffs in generated files.
This commit is contained in:
Ralf Wildenhues 2011-03-05 07:33:13 +00:00
parent e8dc396d7a
commit 66e49b8532
2 changed files with 12 additions and 0 deletions
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6
config/ChangeLog
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@ -1,3 +1,9 @@
2011-03-05 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Eric Blake <eblake@redhat.com>
* override.m4: Error out if a buggy M4 was detected, to
avoid spurious diffs in generated files.
2011-01-25 Jakub Jelinek <jakub@redhat.com> 2011-01-25 Jakub Jelinek <jakub@redhat.com>
* cloog.m4 (CLOOG_REQUESTED): Use $2 if --without-cloog. * cloog.m4 (CLOOG_REQUESTED): Use $2 if --without-cloog.

6
config/override.m4
View File

@ -48,6 +48,12 @@ _GCC_AUTOCONF_VERSION_CHECK
]) ])
dnl Ensure we do not use a buggy M4.
m4_if(m4_index([..wi.d.], [.d.]), [-1],
[m4_fatal(m4_do([m4 with buggy strstr detected. Please install
GNU M4 1.4.16 or newer and set the M4 environment variable]))])
dnl Fix 2.64 cross compile detection for AVR and RTEMS dnl Fix 2.64 cross compile detection for AVR and RTEMS
dnl by not trying to compile fopen. dnl by not trying to compile fopen.
m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64], m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],