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| -rw-r--r-- | config/ChangeLog | 6 | ||||
| -rw-r--r-- | config/override.m4 | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/config/ChangeLog b/config/ChangeLog index ee4c699..2d8d573 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -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> * cloog.m4 (CLOOG_REQUESTED): Use $2 if --without-cloog. diff --git a/config/override.m4 b/config/override.m4 index fc2d527..52bd1c3 100644 --- a/config/override.m4 +++ b/config/override.m4 @@ -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 by not trying to compile fopen. m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64], |