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-rw-r--r--doc/debuginfod.85
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/debuginfod.8 b/doc/debuginfod.8
index 64795c24..d8fbbea0 100644
--- a/doc/debuginfod.8
+++ b/doc/debuginfod.8
@@ -100,7 +100,10 @@ additional patterns. This option may be repeated.
.B "\-R"
Activate RPM patterns in archive scanning. The default is off.
Equivalent to \fB\%\-Z\~.rpm=cat\fP, since libarchive can natively
-process RPM archives.
+process RPM archives. If your version of libarchive is much older
+than 2020, be aware that some distributions have switched to an
+incompatible zstd compression for their payload. You may experiment
+with \fB\%\-Z\ .rpm='(rpm2cpio|zstdcat)<'\fP instead of \fB\-R\fP.
.TP
.B "\-U"