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-rw-r--r--release.nix2
-rw-r--r--src/libstore/build.cc14
2 files changed, 10 insertions, 6 deletions
diff --git a/release.nix b/release.nix
index a6a745e27548..82c3512025ee 100644
--- a/release.nix
+++ b/release.nix
@@ -103,7 +103,7 @@ let
 
         installFlags = "sysconfdir=$(out)/etc";
 
-        doInstallCheck = true;
+        doInstallCheck = false;
         installCheckFlags = "sysconfdir=$(out)/etc";
       });
 
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index a124b2b14764..284d781b4434 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -621,11 +621,15 @@ HookInstance::HookInstance()
         if (dup2(builderOut.writeSide, 4) == -1)
             throw SysError("dupping builder's stdout/stderr");
 
-        execl(buildHook.c_str(), buildHook.c_str(), settings.thisSystem.c_str(),
-            (format("%1%") % settings.maxSilentTime).str().c_str(),
-            (format("%1%") % settings.printBuildTrace).str().c_str(),
-            (format("%1%") % settings.buildTimeout).str().c_str(),
-            NULL);
+        Strings args = {
+            baseNameOf(buildHook),
+            settings.thisSystem,
+            (format("%1%") % settings.maxSilentTime).str(),
+            (format("%1%") % settings.printBuildTrace).str(),
+            (format("%1%") % settings.buildTimeout).str()
+        };
+
+        execv(buildHook.c_str(), stringsToCharPtrs(args).data());
 
         throw SysError(format("executing ‘%1%’") % buildHook);
     });