[gcc(refs/users/egallager/heads/CI)] Update linux.yaml

[Eric Gallager <egallager@gcc.gnu.org>]

https://gcc.gnu.org/g:b7c6ea0a3a146972f61c659a41116bdc04cc6a07

commit b7c6ea0a3a146972f61c659a41116bdc04cc6a07
Author: Eric Gallager <egallager@gcc.gnu.org>
Date:   Mon Oct 16 01:29:11 2023 -0400

    Update linux.yaml
    
    `Mail` might be missing...

Diff:
---
 .github/workflows/linux.yaml | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/linux.yaml b/.github/workflows/linux.yaml
index d91eeed0ad6..5e74a1419df 100644
--- a/.github/workflows/linux.yaml
+++ b/.github/workflows/linux.yaml
@@ -37,7 +37,7 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get -qq update
-          sudo apt install -y gcc-multilib build-essential flex zlib1g-dev gnat gdc expect dejagnu libc-dev libc-devtools texlive findutils binutils autogen gettext autopoint libasprintf-dev libgettextpo-dev mailutils
+          sudo apt install -y gcc-multilib build-essential flex zlib1g-dev gnat gdc expect dejagnu libc-dev libc-devtools texlive findutils binutils autogen gettext autopoint libasprintf-dev libgettextpo-dev mailutils mailutils-mh procmail postfix emacs
 
       - name: Install dependencies for aarch64
         if: success() && contains(matrix.target, 'aarch64')
@@ -152,4 +152,16 @@ jobs:
           if test -e build.log; then make warning.log; fi
           time (make -k -j"$(nproc)" check RUNTESTFLAGS="compile.exp dg-torture.exp execute.exp old-deja.exp" | tee testsuite_output.log)
           if test -e warning.log; then make mail-report-with-warnings.log; else make mail-report.log; fi
-          if test -x mail-report-with-warnings.log; then ./mail-report-with-warnings.log; elif test -x mail-report.log; then ./mail-report.log; fi
+          if test -x "$(which Mail)"; then \
+            if test -x mail-report-with-warnings.log; then \
+              ./mail-report-with-warnings.log; \
+            elif test -x mail-report.log; then \
+              ./mail-report.log; \
+            elif test -e testsuite_output.log; then \
+              echo "TODO: figure out a way to send testsuite_output.log"; \
+            else \
+              echo "Nothing to send."; \
+            fi; \
+          else \
+            echo "Warning: \"Mail\" program is missing, so skipping emailing of testresults!"; \
+          fi