From 1e6196f1b17e43bc78bb14264b376eb09161799c Mon Sep 17 00:00:00 2001
From: Sam Clegg <sbc@chromium.org>
Date: Thu, 4 Aug 2022 13:26:16 -0700
Subject: Allow `BINARYEN_DEBUG` environment variable to be used in place of
 `--debug`. NFC (#4874)

For example I found it useful to able to do something like this:

```
$ BINARYEN_DEBUG=post-emscripten ./test/runner sometest
```
---
 src/support/command-line.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/support/command-line.cpp b/src/support/command-line.cpp
index 0147f9044..23ded0346 100644
--- a/src/support/command-line.cpp
+++ b/src/support/command-line.cpp
@@ -55,6 +55,10 @@ Options::Options(const std::string& command, const std::string& description)
   : debug(false), positional(Arguments::Zero) {
   std::string GeneralOption = "General options";
 
+  if (getenv("BINARYEN_DEBUG")) {
+    setDebugEnabled(getenv("BINARYEN_DEBUG"));
+  }
+
   add("--version",
       "",
       "Output version information and exit",
-- 
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