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-rw-r--r--src/libstore/build.cc28
1 files changed, 16 insertions, 12 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index b07461013cc2..0bd7388097c6 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -825,9 +825,6 @@ private:
     /* Whether we're currently doing a chroot build. */
     bool useChroot = false;
 
-    /* Whether we need to perform hash rewriting if there are valid output paths. */
-    bool needsHashRewrite;
-
     Path chrootRootDir;
 
     /* RAII object to delete the chroot directory. */
@@ -907,6 +904,9 @@ public:
         Worker & worker, BuildMode buildMode = bmNormal);
     ~DerivationGoal();
 
+    /* Whether we need to perform hash rewriting if there are valid output paths. */
+    bool needsHashRewrite();
+
     void timedOut() override;
 
     string key() override
@@ -1019,13 +1019,6 @@ DerivationGoal::DerivationGoal(const Path & drvPath, const StringSet & wantedOut
     , wantedOutputs(wantedOutputs)
     , buildMode(buildMode)
 {
-#if __linux__
-    needsHashRewrite = !useChroot;
-#else
-    /* Darwin requires hash rewriting even when sandboxing is enabled. */
-    needsHashRewrite = true;
-#endif
-
     state = &DerivationGoal::getDerivation;
     name = (format("building of '%1%'") % drvPath).str();
     trace("created");
@@ -1066,6 +1059,17 @@ DerivationGoal::~DerivationGoal()
 }
 
 
+inline bool DerivationGoal::needsHashRewrite()
+{
+#if __linux__
+    return !useChroot;
+#else
+    /* Darwin requires hash rewriting even when sandboxing is enabled. */
+    return true;
+#endif
+}
+
+
 void DerivationGoal::killChild()
 {
     if (pid != -1) {
@@ -2105,7 +2109,7 @@ void DerivationGoal::startBuilder()
 #endif
     }
 
-    if (needsHashRewrite) {
+    if (needsHashRewrite()) {
 
         if (pathExists(homeDir))
             throw Error(format("directory '%1%' exists; please remove it") % homeDir);
@@ -3088,7 +3092,7 @@ void DerivationGoal::registerOutputs()
             if (buildMode != bmCheck) actualPath = worker.store.toRealPath(path);
         }
 
-        if (needsHashRewrite) {
+        if (needsHashRewrite()) {
             Path redirected = redirectedOutputs[path];
             if (buildMode == bmRepair
                 && redirectedBadOutputs.find(path) != redirectedBadOutputs.end()