Fix Xcode versions and remove brew llvm. Direct use of LDFLAGS.

Remove unnecessary variables?

Force -ld_classic when necessary?

Remove outdated brew clang in MacOS 14

Tmp: Select newest version of Xcode and additional mirror

- Add https://joliv.et to overcome ljll network problems

Remove CC and CXX parsing for MacOS linker options.
Direct use of LDFLAGS

Author: prj-

.github/workflows/full-mpich.yml

@@ -78,23 +78,34 @@ jobs:
       - ${{ github.workflow }}
 
     runs-on: macos-${{ matrix.version }}
-
-    env:
-      CC: clang
-      CXX: clang++
-      FC: gfortran
-      F77: gfortran
 
     steps:
       - uses: actions/checkout@v4
 
+      # Remove homebrew LLVM compiler, and use most recent Xcode development
+      # tools
+      - name: Set environment
+        run: |
+          if [ "${{ matrix.version }}" -eq "15" ]; then
+            echo "LLVM_VERSION=18" >> $GITHUB_ENV
+            sudo xcode-select -s /Applications/Xcode_16.2.app/Contents/Developer
+          elif [ "${{ matrix.version }}" -eq "14" ]; then
+            echo "LLVM_VERSION=15" >> $GITHUB_ENV
+            sudo xcode-select -s /Applications/Xcode_16.2.app/Contents/Developer
+          elif [ "${{ matrix.version }}" -eq "13" ]; then
+            echo "LLVM_VERSION=15" >> $GITHUB_ENV
+            sudo xcode-select -s /Applications/Xcode_15.2.app/Contents/Developer
+            echo "LDFLAGS=-Wl,-ld_classic -Wl,-commons,use_dylibs" >> $GITHUB_ENV
+          fi
+
       - name: Install
         run: |
-          brew install gcc m4 git bison hdf5 cmake wget autoconf automake
+          brew install m4 git bison hdf5 wget autoconf automake
+          brew remove llvm@$LLVM_VERSION
 
       - name: Symlink GCC & Fortran
         run: ./etc/actions/macos/link_fortran.sh "$(uname -p)"
-          
+
       - name: Configure
         run: |
           autoreconf -i

3rdparty/getall

@@ -268,7 +268,14 @@ sub downloadone{
 			print "Try (2 times)  other site: $url\n";
 			system $cmd;
 			if ($?){
-				$errors.="ERROR: $cmd FAILED\n"
+			       print "Download 3 times failed from $url of $pkg\n";
+			       my $url="https://joliv.et/freefem/pkg/$pkg";
+			       my $cmd="../bin/build/download $url pkg/$pkg $opts";
+			       print "Try (2 times)  other site: $url\n";
+			       system $cmd;
+			       if ($?){
+				      $errors.="ERROR: $cmd FAILED\n"
+			       }
 			}
 		}
 

bin/compile-version-MacOS

@@ -173,7 +173,7 @@ echo2 ================================
 export PATH=$prefix/bin:$PATH
 #autoreconf -i
 tar zxvf AutoGeneratedFile.tar.gz 
-./configure "--prefix=$prefix" '--enable-download' $optionconf '--enable-m64' 'CXXFLAGS=-Wno-undefined-var-template' "FLIBS=-L$prefix/gnu -lgfortran -lquadmath  -Wl,-ld_classic" $addconf
+./configure "--prefix=$prefix" '--enable-download' $optionconf '--enable-m64' 'CXXFLAGS=-Wno-undefined-var-template' "FLIBS=-L$prefix/gnu -lgfortran -lquadmath" $addconf
 echo2 ================================
 echo2 compilation de petc 
 echo2 ================================