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-rwxr-xr-xcontrib/install_db4.sh8
1 files changed, 7 insertions, 1 deletions
diff --git a/contrib/install_db4.sh b/contrib/install_db4.sh
index 36a4ea08f6..81c88a2ae7 100755
--- a/contrib/install_db4.sh
+++ b/contrib/install_db4.sh
@@ -1,5 +1,5 @@
#!/bin/sh
-# Copyright (c) 2017-2019 The Bitcoin Core developers
+# Copyright (c) 2017-2021 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
@@ -62,6 +62,12 @@ http_get() {
sha256_check "${3}" "${2}"
}
+# Ensure the commands we use exist on the system
+if ! check_exists patch; then
+ echo "Command-line tool 'patch' not found. Install patch and try again."
+ exit 1
+fi
+
mkdir -p "${BDB_PREFIX}"
http_get "${BDB_URL}" "${BDB_VERSION}.tar.gz" "${BDB_HASH}"
tar -xzvf ${BDB_VERSION}.tar.gz -C "$BDB_PREFIX"