check-host-tar.sh: blacklist tar 1.30+

Tar 1.30 changed the --numeric-owner output for filenames > 100 characters,
leading to hash mismatches for the tar archives we create ourselves from
git.  This is really a fix for a bug in earlier tar versions regarding
deterministic output, so it is unlikely to be reverted in later versions.

For more details, see:
http://lists.busybox.net/pipermail/buildroot/2018-January/211222.html

To work around this issue, blacklist tar 1.30+ similar to how we do it for
pre-1.17 versions so Buildroot falls back to building host-tar.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/support/dependencies/check-host-tar.sh b/support/dependencies/check-host-tar.sh
index 932d3c4fb20004bfa76a718050cffb9ac8df6c58..2143877524e6c77b3dbc93f9479f0095f1f4ffea 100755 (executable)
--- a/support/dependencies/check-host-tar.sh
+++ b/support/dependencies/check-host-tar.sh
@@ -30,13 +30,28 @@ fi
 # containing hard-links if the --strip-components option is used).
 major_min=1
 minor_min=17
-if [ $major -gt $major_min ]; then
-       echo $tar
-else
-       if [ $major -eq $major_min -a $minor -ge $minor_min ]; then
-               echo $tar
-       else
-               # echo nothing: no suitable tar found
-               exit 1
-       fi
+
+# Maximal version = 1.29 (1.30 changed --numeric-owner output for
+# filenames > 100 characters). This is really a fix for a bug in
+# earlier tar versions regarding deterministic output so it is
+# unlikely to be reverted in later versions.
+major_max=1
+minor_max=29
+
+if [ $major -lt $major_min -o $major -gt $major_max ]; then
+       # echo nothing: no suitable tar found
+       exit 1
 fi
+
+if [ $major -eq $major_min -a $minor -lt $minor_min ]; then
+       # echo nothing: no suitable tar found
+       exit 1
+fi
+
+if [ $major -eq $major_max -a $minor -gt $minor_max ]; then
+       # echo nothing: no suitable tar found
+       exit 1
+fi
+
+# valid
+echo $tar