From ce5f1351411a1040f9f957f499dc18e2daf9ae3e Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sat, 30 Jan 2021 21:35:35 +0100
Subject: [PATCH] Fix allow_warnings check

We should disallow warnings when this flag is not defined, not when it
is.
---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c84ab5abec..18e955e0c7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -70,7 +70,7 @@ jobs:
               ;;
           esac
 
-          if [ ${{ matrix.allow_warnings }} ]; then
+          if [ -z ${{ matrix.allow_warnings }} ]; then
             error_opts="-Werror $allow_warn_opt"
             echo "wxMAKEFILE_ERROR_CXXFLAGS=$error_opts" >> $GITHUB_ENV
             echo "wxMAKEFILE_CXXFLAGS=$wxMAKEFILE_CXXFLAGS $error_opts" >> $GITHUB_ENV