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authorEelco Dolstra <edolstra@gmail.com>2017-06-12T15·43+0200
committerEelco Dolstra <edolstra@gmail.com>2017-06-12T15·43+0200
commit25230a17a9d0c22f97ed80b1a8f50566a4ff548d (patch)
treef5b3fd125c3dc22bc7053c0f74140915b209f321 /src/libmain/shared.cc
parent847f19a5f7a558252bbde9b4c70efa5f7fac1f4f (diff)
On macOS, don't use /var/folders for TMPDIR
This broke "nix-store --serve".
Diffstat (limited to 'src/libmain/shared.cc')
-rw-r--r--src/libmain/shared.cc8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index d6c1c0c9cb49..915e79550144 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -138,6 +138,14 @@ void initNix()
     struct timeval tv;
     gettimeofday(&tv, 0);
     srandom(tv.tv_usec);
+
+    /* On macOS, don't use the per-session TMPDIR (as set e.g. by
+       sshd). This breaks build users because they don't have access
+       to the TMPDIR, in particular in ‘nix-store --serve’. */
+#if __APPLE__
+    if (getuid() == 0 && hasPrefix(getEnv("TMPDIR"), "/var/folders/"))
+        unsetenv("TMPDIR");
+#endif
 }