From 6e52383c3a252736748c2b1998cd7a524ff98511 Mon Sep 17 00:00:00 2001
From: Dan Bonachea <dobonachea@lbl.gov>
Date: Thu, 8 Oct 2026 20:42:41 -0700
Subject: [PATCH 1/2] CI: Silence all of Homebrew's intrusive/irritating
 nonsense warnings

Homebrew is waaaaaay too spammy with their warning policy and we're
fed up with seeing their harmless warnings polluting our workflow
summary. Downgrade all Homebrew warnings to only appear in the log.
---
 .github/workflows/build.yml | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a665209..8e5c634 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -174,7 +174,7 @@ jobs:
       FFLAGS: ${{ matrix.extra_flags }}
       FPM_FLAGS:  --profile release --verbose
       CURL_OPTIONS: --retry 10 --retry-all-errors --fail -L
-      BREW_WARNING_FILTER: 's/^[[:punct:]]*warning[[:punct:]]*(You are using macOS)/warn: \1/i'
+      BREW_WARNING_FILTER: 's/^[[:punct:]]+warning[[:punct:]]+/warning: /i'
 
     steps:
     - name: Checkout code
@@ -214,7 +214,8 @@ jobs:
           chmod +x install-homebrew.sh
           env CI=1 ./install-homebrew.sh
           HOMEBREW_PREFIX="/home/linuxbrew/.linuxbrew"
-          retry ${HOMEBREW_PREFIX}/bin/brew install -v gcc@${COMPILER_VERSION} binutils
+          retry ${HOMEBREW_PREFIX}/bin/brew install -v gcc@${COMPILER_VERSION} binutils \
+            2>&1 | perl -pe "$BREW_WARNING_FILTER" ; test ${PIPESTATUS[0]} = 0
           ls -al ${HOMEBREW_PREFIX}/bin
           echo "PATH=${HOMEBREW_PREFIX}/bin:${PATH}" >> "$GITHUB_ENV"
           : Homebrew GCC@15 needs binutils 2.44+
@@ -241,7 +242,8 @@ jobs:
       if: ${{ contains(matrix.os, 'macos') }}
       run: |
         # silence Homebrew tap trust warnings:
-        (set +e ; brew untap -f aws/tap hashicorp/tap 2>&1 | perl -pe 's/^::*//;s/^##*//' ; brew trust azure/bicep ; echo )
+        (set +e ; brew untap -f aws/tap hashicorp/tap ; brew trust azure/bicep ) \
+            2>&1 | perl -pe "$BREW_WARNING_FILTER" 
         # set some Homebrew knobs to accelerate installation
         # but only when we are not simulating the user environment brew-via-install workflow
         if [[ -z "${{ matrix.brew_via_install }}" ]] ; then
@@ -254,7 +256,8 @@ jobs:
     - name: Install macOS Dependencies
       if: contains(matrix.os, 'macos')
       run: |
-        retry brew update
+        retry brew update \
+            2>&1 | perl -pe "$BREW_WARNING_FILTER" ; test ${PIPESTATUS[0]} = 0
         # fpm binary distribution for macOS requires gfortran shared libraries from gcc@12
         retry brew install gcc@12 \
             2>&1 | perl -pe "$BREW_WARNING_FILTER" ; test ${PIPESTATUS[0]} = 0

From 4a66e2a6c84fbde1b3757f4a708ce5faca76f45b Mon Sep 17 00:00:00 2001
From: Dan Bonachea <dobonachea@lbl.gov>
Date: Thu, 8 Oct 2026 20:48:33 -0700
Subject: [PATCH 2/2] CI: Add LFortran on macOS

---
 .github/workflows/build.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8e5c634..d043a7e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -165,6 +165,14 @@ jobs:
             version: latest
             container: ghcr.io/lfortran/lfortran:latest
 
+          # https://github.com/fortran-lang/homebrew-fortran
+          - os: macos-15
+            compiler: lfortran
+            version: 0.67.0
+          - os: macos-26
+            compiler: lfortran
+            version: 0.67.0
+
     container:
       image: ${{ matrix.container }}
 
@@ -265,6 +273,10 @@ jobs:
           retry brew install gcc@${COMPILER_VERSION} \
             2>&1 | perl -pe "$BREW_WARNING_FILTER" ; test ${PIPESTATUS[0]} = 0
         fi
+        if [[ ${{ matrix.compiler }} == 'lfortran' ]] ; then
+          retry brew install fortran-lang/fortran/lfortran \
+            2>&1 | perl -pe "$BREW_WARNING_FILTER" ; test ${PIPESTATUS[0]} = 0
+        fi
 
     - name: Install LLVM flang on macOS
       if: contains(matrix.os, 'macos') && matrix.compiler == 'flang'