[C++] Add --lunch flag to m2n

Now ninja.sh tries to recover environment variables.

1 files changed, 2 insertions, 0 deletions

diff --git a/main.cc b/main.cc
index aad72a8..5d44994 100644
--- a/main.cc
+++ b/main.cc
@@ -93,6 +93,8 @@ static void ParseCommandLine(int argc, char* argv[],
       g_generate_ninja = true;
     } else if (!strcmp(arg, "--detect_android_echo")) {
       g_detect_android_echo = true;
+    } else if (!strcmp(arg, "--error_on_env_change")) {
+      g_error_on_env_change = true;
     } else if (ParseCommandLineOptionWithArg(
         "-j", argv, &i, &num_jobs_str)) {
       g_num_jobs = strtol(num_jobs_str, NULL, 10);