From c137b853fb0122d33bf358e76f08d819dbcd4d01 Mon Sep 17 00:00:00 2001
From: Matthew Thompson <matthew.thompson@nasa.gov>
Date: Wed, 30 Aug 2023 08:31:34 -0400
Subject: [PATCH] Use GNU grep on macos

---
 .github/workflows/boxes.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/boxes.yml b/.github/workflows/boxes.yml
index e21aab1..e22688e 100644
--- a/.github/workflows/boxes.yml
+++ b/.github/workflows/boxes.yml
@@ -51,9 +51,11 @@ jobs:
         steps:
             - uses: actions/checkout@v3
 
+            # We need to use GNU grep on macOS
             - name: add-packages
               run: |
-                  brew install git flex bison libunistring pcre2 ncurses diffutils lcov cmocka
+                  brew install git flex bison libunistring pcre2 ncurses diffutils lcov cmocka grep
+                  echo '/usr/local/opt/grep/libexec/gnubin' >> $GITHUB_PATH
 
             - name: make cov
               run: make cov LEX=/usr/local/opt/flex/bin/flex YACC=/usr/local/opt/bison/bin/bison