Introduce a new option to overide components' config.{gues,sub} with the one provided with crosstool-NG.

Fix typoes in a comment.

 /trunk/scripts/functions                 |   13    11     2     0 +++++++++++--
 /trunk/config/global/download_extract.in |   20    20     0     0 ++++++++++++++++++++
 2 files changed, 31 insertions(+), 2 deletions(-)

1 files changed, 20 insertions, 0 deletions

diff --git a/config/global/download_extract.in b/config/global/download_extract.in
index d638ab09..2ddc523d 100644
--- a/config/global/download_extract.in
+++ b/config/global/download_extract.in
@@ -209,6 +209,26 @@ config FORCE_EXTRACT
       Usefull if you suspect a previous extract did not complete (eg. broken
       tarball), or you added a new set of patches for this component.
 
+config OVERIDE_CONFIG_GUESS_SUB
+    bool
+    prompt "Override config.{guess,sub}"
+    default y
+    help
+      Override tools' versions of config.guess and config.sub with the ones
+      from crosstool-NG. This means that all instances of config.guess and
+      config.sub in gcc, binutils, glibc, etc... will be replaced.
+
+      Most of the time, the versions of those scripts found in packages are old
+      versions, thus lacking some target definitions. This is the case for
+      uClibc-based tuples in old versions of gcc and gdb, for example.
+
+      Also, doing so will guarantee that all components have the same tuples
+      definitions for your target, and not diverging ones.
+
+      You can update the ones provided with crosstool-NG by first running:
+        ct-ng updatetools
+      in the directory where you want to run crosstool-NG prior to the build.
+
 config ONLY_EXTRACT
     bool
     prompt "Stop after extracting tarballs"