find and use gcc

Author: mattip

.github/workflows/posix.yml

@@ -99,9 +99,10 @@ jobs:
         brew reinstall gcc
         brew install coreutils
         brew install llvm
-        ls /usr/local/Cellar/gcc
-        echo "/usr/local/Cellar/gcc/14.2.0_1/bin" >>$GITHUB_PATH
-        echo "CC=/usr/local/Cellar/gcc/14.2.0_1/bin/gcc-14" >> $GITHUB_ENV;
+        ver=$(ls /usr/local/Cellar/gcc)
+        cc=$(ls /usr/local/Cellar/gcc/$ver/bin/gcc-1*)
+        echo "/usr/local/Cellar/gcc/$ver/bin" >>$GITHUB_PATH
+        echo "CC=$cc" >> $GITHUB_ENV;
         echo "RANLIB=/usr/bin/ranlib" >> $GITHUB_ENV;