makeparallel: unset MAKEFLAGS and MAKELEVEL
makeparallel inherits values for MAKEFLAGS and MAKELEVEL from make
through the environment, but they should not be propagated to the child
process in case the child process tries to run make again.
Bug: 26071246
Change-Id: I4c5df10ea8055cd1f1f61a892d5b1a7acb287bbb
(cherry picked from commit d8f0d68b78e968c5d014a9bac9463dbcf522b1c5)
diff --git a/tools/makeparallel/makeparallel.cpp b/tools/makeparallel/makeparallel.cpp
index cf125fa..3c39846 100644
--- a/tools/makeparallel/makeparallel.cpp
+++ b/tools/makeparallel/makeparallel.cpp
@@ -341,6 +341,8 @@
error(errno, errno, "fork failed");
} else if (pid == 0) {
// child
+ unsetenv("MAKEFLAGS");
+ unsetenv("MAKELEVEL");
int ret = execvp(path, args.data());
if (ret < 0) {
error(errno, errno, "exec %s failed", path);
