diff --git a/tools/make-dist.sh b/tools/make-dist.sh index 11b5fe5a30ac83287d248452b65fca71a8d11b13..c9800361f3cef353b03c56c85dae5683ef8782ab 100755 --- a/tools/make-dist.sh +++ b/tools/make-dist.sh @@ -26,6 +26,10 @@ usage() { echo "and cmucl-<version>-<arch>-<os>.extra.tar.<c> where <version>," echo "<arch>, and <os> are given values, and <c> is gz or bz2 depending" echo "on the selected compression method." + echo "" + echo "Creating a source distribution requires GNU tar. If 'tar' is not GNU" + echo "tar, use the environment variable 'GTAR' to specify GNU tar. You can" + echo "use 'GTAR=gtar make-dist.sh -S ...' in this case." exit 1 }