krb5 commit: Add fortify flag to gcc CI build

[ghudson at mit.edu]

https://github.com/krb5/krb5/commit/aafc170587c69346a9b06583db6f1bb8edf524f2
commit aafc170587c69346a9b06583db6f1bb8edf524f2
Author: Greg Hudson <ghudson at mit.edu>
Date:   Fri Jul 19 18:07:46 2024 -0400

    Add fortify flag to gcc CI build

 .github/workflows/build.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 350ed3de5..8d7d02e74 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,6 +26,7 @@ jobs:
                     - name: linux-gcc
                       os: ubuntu-latest
                       compiler: gcc
+                      makevars: CPPFLAGS=-D_FORTIFY_SOURCE=3
         steps:
             - name: Checkout repository
               uses: actions/checkout at v1