Merge pull request #721 from nkcsgexi/71269128

Add a work-around for rdar://71269128
apple · Mar 30, 2021 · d29edad · d29edad
2 parents 8089806 + a09ea6f
commit d29edad
Showing 1 changed file with 15 additions and 3 deletions.
diff --git a/products/llbuildSwift/BuildSystemBindings.swift b/products/llbuildSwift/BuildSystemBindings.swift
@@ -732,13 +732,25 @@ public final class BuildSystem {
 
         // Create a stable C string path.
         let pathPtr = strdup(buildFile)
-        defer { free(pathPtr) }
+        defer {
+            if let pathPtr = pathPtr {
+                free(pathPtr)
+            }
+        }
 
         let dbPathPtr = strdup(databaseFile)
-        defer { free(dbPathPtr) }
+        defer {
+            if let dbPathPtr = dbPathPtr {
+                free(dbPathPtr)
+            }
+        }
 
         let tracePathPtr = strdup(traceFile ?? "")
-        defer { free(tracePathPtr) }
+        defer {
+            if let tracePathPtr = tracePathPtr {
+                free(tracePathPtr)
+            }
+        }
 
         // Allocate a C style environment, if necessary.
         _cEnvironment = CStyleEnvironment(environment)