$OpenBSD: patch-src_etc_rust-gdb,v 1.4 2018/08/06 19:07:50 landry Exp $
only compatible with egdb (gdb from ports)
Index: src/etc/rust-gdb
--- src/etc/rust-gdb.orig
+++ src/etc/rust-gdb
@@ -12,6 +12,11 @@
 # Exit if anything fails
 set -e
 
+if ! command -v egdb; then
+	echo "error: rust-gdb requires devel/gdb to be installed" >&2
+	exit 1
+fi
+
 # Find out where the pretty printer Python module is
 RUSTC_SYSROOT=`rustc --print=sysroot`
 GDB_PYTHON_MODULE_DIRECTORY="$RUSTC_SYSROOT/lib/rustlib/etc"
@@ -19,7 +24,7 @@ GDB_PYTHON_MODULE_DIRECTORY="$RUSTC_SYSROOT/lib/rustli
 # Run GDB with the additional arguments that load the pretty printers
 # Set the environment variable `RUST_GDB` to overwrite the call to a
 # different/specific command (defaults to `gdb`).
-RUST_GDB="${RUST_GDB:-gdb}"
+RUST_GDB="${RUST_GDB:-egdb}"
 PYTHONPATH="$PYTHONPATH:$GDB_PYTHON_MODULE_DIRECTORY" ${RUST_GDB} \
   --directory="$GDB_PYTHON_MODULE_DIRECTORY" \
   -iex "add-auto-load-safe-path $GDB_PYTHON_MODULE_DIRECTORY" \
