4 files changed, 18 insertions, 7 deletions
diff --git a/src/libutil/affinity.cc b/src/libutil/affinity.cc
index 3e21f43a2e9d..3cbdf878617a 100644
--- a/src/libutil/affinity.cc
+++ b/src/libutil/affinity.cc
@@ -2,14 +2,14 @@
 #include "util.hh"
 #include "affinity.hh"
 
-#if HAVE_SCHED_H
+#if __linux__
 #include <sched.h>
 #endif
 
 namespace nix {
 
 
-#if HAVE_SCHED_SETAFFINITY
+#if __linux__
 static bool didSaveAffinity = false;
 static cpu_set_t savedAffinity;
 #endif
@@ -17,7 +17,7 @@ static cpu_set_t savedAffinity;
 
 void setAffinityTo(int cpu)
 {
-#if HAVE_SCHED_SETAFFINITY
+#if __linux__
     if (sched_getaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1) return;
     didSaveAffinity = true;
     printMsg(lvlDebug, format("locking this thread to CPU %1%") % cpu);
@@ -32,7 +32,7 @@ void setAffinityTo(int cpu)
 
 int lockToCurrentCPU()
 {
-#if HAVE_SCHED_SETAFFINITY
+#if __linux__
     int cpu = sched_getcpu();
     if (cpu != -1) setAffinityTo(cpu);
     return cpu;
@@ -44,7 +44,7 @@ int lockToCurrentCPU()
 
 void restoreAffinity()
 {
-#if HAVE_SCHED_SETAFFINITY
+#if __linux__
     if (!didSaveAffinity) return;
     if (sched_setaffinity(0, sizeof(cpu_set_t), &savedAffinity) == -1)
         printMsg(lvlError, "failed to restore affinity %1%");
diff --git a/src/libutil/compression.cc b/src/libutil/compression.cc
index 446fcb781564..fb4160669a29 100644
--- a/src/libutil/compression.cc
+++ b/src/libutil/compression.cc
@@ -2,6 +2,7 @@
 #include "types.hh"
 
 #include <lzma.h>
+#include <cstdio>
 
 namespace nix {
 
diff --git a/src/libutil/util.cc b/src/libutil/util.cc
index 656d67a53b8d..c1585e27ea1f 100644
--- a/src/libutil/util.cc
+++ b/src/libutil/util.cc
@@ -599,6 +599,8 @@ string drainFD(int fd)
 //////////////////////////////////////////////////////////////////////
 
 
+AutoDelete::AutoDelete() : del{false} {}
+
 AutoDelete::AutoDelete(const string & p, bool recursive) : path(p)
 {
     del = true;
@@ -626,6 +628,12 @@ void AutoDelete::cancel()
     del = false;
 }
 
+void AutoDelete::reset(const Path & p, bool recursive) {
+    path = p;
+    this->recursive = recursive;
+    del = true;
+}
+
 
 
 //////////////////////////////////////////////////////////////////////
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 2edc5344fdc1..cf93c6378a06 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -156,8 +156,8 @@ void printMsg_(Verbosity level, const FormatOrString & fs);
 
 #define printMsg(level, f) \
     do { \
-        if (level <= verbosity) { \
-            printMsg_(level, (f)); \
+        if (level <= nix::verbosity) { \
+            nix::printMsg_(level, (f)); \
         } \
     } while (0)
 
@@ -205,9 +205,11 @@ class AutoDelete
     bool del;
     bool recursive;
 public:
+    AutoDelete();
     AutoDelete(const Path & p, bool recursive = true);
     ~AutoDelete();
     void cancel();
+    void reset(const Path & p, bool recursive = true);
     operator Path() const { return path; }
 };