···1+--- a/swiftpm/Sources/Basic/Process.swift
2++++ b/swiftpm/Sources/Basic/Process.swift
3+@@ -258,7 +258,7 @@ public func launch() throws {
4+ // modify, so we have to take care about the set we use.
5+ var mostSignals = sigset_t()
6+ sigemptyset(&mostSignals)
7+- for i in 1 ..< SIGUNUSED {
8++ for i in 1 ..< SIGSYS {
9+ if i == SIGKILL || i == SIGSTOP {
10+ continue
11+ }