From f6a49e34d573ca3753a8ea751bf8dda1879e5f05 Mon Sep 17 00:00:00 2001
From: Rikard Nordgren <rikard.nordgren@uu.se>
Date: Thu, 8 May 2025 14:45:35 +0200
Subject: [PATCH] Check if gcc version is already installed on MacOS

---
 setup-fortran.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/setup-fortran.sh b/setup-fortran.sh
index a2247f9..f6dba44 100755
--- a/setup-fortran.sh
+++ b/setup-fortran.sh
@@ -27,7 +27,11 @@ install_environment_modules_apt() {
 
 install_gcc_brew()
 {
-  brew install --force gcc@${version}
+  if brew list --versions gcc | grep -q "^gcc ${version}\."; then
+    echo "GCC $version already installed"
+  else
+    brew install --force gcc@${version}
+  fi
 
   # make an unversioned symlink
   os_ver=$(sw_vers -productVersion | cut -d'.' -f1)