use gfortran-11 on macos-x86_64 build

.github/workflows/posix.yml

@@ -28,8 +28,8 @@ jobs:
           - { os: ubuntu-latest, PLAT: x86_64, INTERFACE64: '0', MB_ML_VER: '2014', MB_ML_LIBC: manylinux}
           - { os: ubuntu-latest, PLAT: x86_64, INTERFACE64: '1', MB_ML_VER: '2014', MB_ML_LIBC: manylinux}
 
-          - { os: macos-latest, PLAT: x86_64, INTERFACE64: '0', MB_ML_LIBC: macosx}
-          - { os: macos-latest, PLAT: x86_64, INTERFACE64: '1', MB_ML_LIBC: macosx}
+          - { os: macos-14, PLAT: x86_64, INTERFACE64: '0', MB_ML_LIBC: macosx}
+          - { os: macos-14, PLAT: x86_64, INTERFACE64: '1', MB_ML_LIBC: macosx}
 
           - { os: macos-latest, PLAT: arm64, INTERFACE64: '0', MB_ML_LIBC: macosx}
           - { os: macos-latest, PLAT: arm64, INTERFACE64: '1', MB_ML_LIBC: macosx}
@@ -59,10 +59,15 @@ jobs:
         fetch-depth: 0
 
     - uses: maxim-lobanov/setup-xcode@v1.6.0
-      if: ${{ contains(matrix.os, 'macos') }}
+      if: ${{ matrix.os == 'macos-latest' }}
       with:
         xcode-version: '16.0'
 
+    - uses: maxim-lobanov/setup-xcode@v1.6.0
+      if: ${{ matrix.os == 'macos-14' }}
+      with:
+        xcode-version: '15.4'
+
     - name: Print some Environment variable
       run: |
         echo "PLAT: ${PLAT}"

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "OpenBLAS"]
 	path = OpenBLAS
 	url = https://github.com/xianyi/OpenBLAS.git
+[submodule "gfortran-install"]
+	path = gfortran-install
+	url = https://github.com/MacPython/gfortran-install.git

pyproject.toml

@@ -9,7 +9,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "scipy-openblas64"
 # v0.3.30
-version = "0.3.30.0.5"
+version = "0.3.30.0.6"
 requires-python = ">=3.7"
 description = "Provides OpenBLAS for python packaging"
 readme = "README.md"

tools/build_steps.sh

@@ -150,10 +150,18 @@ function do_build_lib {
         Darwin-x86_64)
             local bitness=64
             local target="CORE2"
-            # Pick up the gfortran runtime libraries
+            # Use gfortran-11
+            unalias gfortran
+            # Since install_fortran uses `uname -a` to determine arch,
+            # force the architecture
+            arch -${PLAT} bash -s << EOF
+source ${ROOT_DIR}/gfortran-install/gfortran_utils.sh
+install_gfortran
+EOF
             export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH
             CFLAGS="$CFLAGS -arch x86_64"
             export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
+            local dynamic_list="CORE2 NEHALEM SANDYBRIDGE HASWELL SKYLAKEX"
             ;;
         *-i686)
             local bitness=32