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Diffstat (limited to 'config/override.m4')
| -rw-r--r-- | config/override.m4 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/config/override.m4 b/config/override.m4 index fc2d5272d..52bd1c3d1 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], |