From 41f6f7a1fb9f7d0b30c16111a1a5eb95b74148e9 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Thu, 20 Nov 2025 19:19:23 +0200
Subject: [PATCH 01/22] always use gfortran from conda on macos, update to
 gfortran-15

---
 pyproject.toml          |  2 +-
 tools/build_steps.sh    | 17 ++++++++---------
 tools/gfortran_utils.sh | 14 +++++++-------
 3 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index c956d4c..eb3981c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "scipy-openblas64"
 # v0.3.30-349-gf6df9beb
-version = "0.3.30.349.0"
+version = "0.3.30.349.1"
 requires-python = ">=3.7"
 description = "Provides OpenBLAS for python packaging"
 readme = "README.md"
diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index 6aacb01..ed1ede3 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -39,7 +39,14 @@ function before_build {
         # get_macpython_environment ${MB_PYTHON_VERSION} venv
         python3.9 -m venv venv
         source venv/bin/activate
-        alias gfortran=gfortran-15
+        # Use gfortran from conda
+        # Since install_fortran uses `uname -a` to determine arch,
+        # force the architecture when using rosetta
+        unalias gfortran || true
+        arch -${PLAT} bash -s << "        EOF"
+            source ${ROOT_DIR}/gfortran-install/gfortran_utils.sh
+            install_gfortran
+        EOF
         # Deployment target set by gfortran_utils
         echo "Deployment target $MACOSX_DEPLOYMENT_TARGET"
 
@@ -150,14 +157,6 @@ function do_build_lib {
         Darwin-x86_64)
             local bitness=64
             local target="CORE2"
-            # 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:-$(xcrun --show-sdk-path)}
diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index b7127f5..e9da7fb 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -105,29 +105,29 @@ if [ "$(uname)" == "Darwin" ]; then
     export MACOSX_DEPLOYMENT_TARGET=$mac_target
     # Keep this for now as some builds might depend on this being
     # available before install_gfortran is called
-    export GFORTRAN_SHA=c469a420d2d003112749dcdcbe3c684eef42127e
     # Set SDKROOT env variable if not set
     export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
 
     function download_and_unpack_gfortran {
 	local arch=$1
 	local type=$2
-        curl -L -O https://github.com/isuruf/gcc/releases/download/gcc-11.3.0-2/gfortran-darwin-${arch}-${type}.tar.gz
+        curl -L -O https://github.com/isuruf/gcc/releases/download/gcc-15.2.0/gfortran-darwin-${arch}-${type}.tar.gz
 	case ${arch}-${type} in
 	    arm64-native)
-	        export GFORTRAN_SHA=0d5c118e5966d0fb9e7ddb49321f63cac1397ce8
+	        export GFORTRAN_SHA=999a91eef894d32f99e3b641520bef9f475055067f301f0f1947b8b716b5922a
 		;;
 	    arm64-cross)
-		export GFORTRAN_SHA=527232845abc5af21f21ceacc46fb19c190fe804
+            export GFORTRAN_SHA=39ef2590629c2f238f1a67469fa429d8d6362425b277abb57fd2f3c982568a3f
 		;;
 	    x86_64-native)
-		export GFORTRAN_SHA=c469a420d2d003112749dcdcbe3c684eef42127e
+            export GFORTRAN_SHA=fb03c1f37bf0258ada6e3e41698e3ad416fff4dad448fd746e01d8ccf1efdc0f
 		;;
 	    x86_64-cross)
-		export GFORTRAN_SHA=107604e57db97a0ae3e7ca7f5dd722959752f0b3
+            export GFORTRAN_SHA=0a19ca91019a75501e504eed1cad2be6ea92ba457ec815beb0dd28652eb0ce3f
 		;;
+        *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
 	esac
-        if [[ "$(shasum gfortran-darwin-${arch}-${type}.tar.gz)" != "${GFORTRAN_SHA}  gfortran-darwin-${arch}-${type}.tar.gz" ]]; then
+        if [[ "$(sha256sum gfortran-darwin-${arch}-${type}.tar.gz)" != "${GFORTRAN_SHA}  gfortran-darwin-${arch}-${type}.tar.gz" ]]; then
             echo "shasum mismatch for gfortran-darwin-${arch}-${type}"
             exit 1
         fi

From c83949153775c3172c63944193d52ca67b2f4978 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Thu, 20 Nov 2025 19:28:44 +0200
Subject: [PATCH 02/22] remove unused submodule gfortran-install

---
 .gitmodules      | 3 ---
 gfortran-install | 1 -
 2 files changed, 4 deletions(-)
 delete mode 160000 gfortran-install

diff --git a/.gitmodules b/.gitmodules
index 7b8f5ca..546361d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
 [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
diff --git a/gfortran-install b/gfortran-install
deleted file mode 160000
index 3dd38d9..0000000
--- a/gfortran-install
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 3dd38d9ce78b3890598cb0eff18a7bec50c06f5e

From eef7a055988283ce60911d92407d34ffb07f7e67 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Thu, 20 Nov 2025 19:29:04 +0200
Subject: [PATCH 03/22] use tools/gfortran_install.sh

---
 tools/build_steps.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index ed1ede3..b0f82bc 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -44,7 +44,7 @@ function before_build {
         # force the architecture when using rosetta
         unalias gfortran || true
         arch -${PLAT} bash -s << "        EOF"
-            source ${ROOT_DIR}/gfortran-install/gfortran_utils.sh
+            source tools/gfortran_utils.sh
             install_gfortran
         EOF
         # Deployment target set by gfortran_utils

From d5a78e29a8569ba42dcbb5f434df20de971843de Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Thu, 20 Nov 2025 20:21:27 +0200
Subject: [PATCH 04/22] use tools/sha256sum.py since macos image does not have
 sha256sum

---
 tools/gfortran_utils.sh |  2 +-
 tools/sha256sum.py      | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100755 tools/sha256sum.py

diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index e9da7fb..25d1e74 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -127,7 +127,7 @@ if [ "$(uname)" == "Darwin" ]; then
 		;;
         *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
 	esac
-        if [[ "$(sha256sum gfortran-darwin-${arch}-${type}.tar.gz)" != "${GFORTRAN_SHA}  gfortran-darwin-${arch}-${type}.tar.gz" ]]; then
+        if [[ "$(python3 tools/sha256sum.py gfortran-darwin-${arch}-${type}.tar.gz)" != "${GFORTRAN_SHA}  gfortran-darwin-${arch}-${type}.tar.gz" ]]; then
             echo "shasum mismatch for gfortran-darwin-${arch}-${type}"
             exit 1
         fi
diff --git a/tools/sha256sum.py b/tools/sha256sum.py
new file mode 100755
index 0000000..da39d6e
--- /dev/null
+++ b/tools/sha256sum.py
@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+
+import hashlib
+import sys
+ 
+filename = sys.argv[1]
+sha256_hash = hashlib.sha256()
+with open(filename,"rb") as f:
+    # Read and update hash string value in blocks
+    for byte_block in iter(lambda: f.read(32768),b""):
+        sha256_hash.update(byte_block)
+    print(sha256_hash.hexdigest())
+

From 85f1210ecd49b4def5b95dcb05f71ea9858b092f Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Thu, 20 Nov 2025 21:28:45 +0200
Subject: [PATCH 05/22] reflow and fix gfortran_install.sh

---
 tools/gfortran_utils.sh | 59 ++++++++++++++++++++++-------------------
 1 file changed, 32 insertions(+), 27 deletions(-)

diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index 25d1e74..1d4c270 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -109,26 +109,29 @@ if [ "$(uname)" == "Darwin" ]; then
     export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
 
     function download_and_unpack_gfortran {
-	local arch=$1
-	local type=$2
+        local arch=$1
+        local type=$2
         curl -L -O https://github.com/isuruf/gcc/releases/download/gcc-15.2.0/gfortran-darwin-${arch}-${type}.tar.gz
-	case ${arch}-${type} in
-	    arm64-native)
-	        export GFORTRAN_SHA=999a91eef894d32f99e3b641520bef9f475055067f301f0f1947b8b716b5922a
-		;;
-	    arm64-cross)
-            export GFORTRAN_SHA=39ef2590629c2f238f1a67469fa429d8d6362425b277abb57fd2f3c982568a3f
-		;;
-	    x86_64-native)
-            export GFORTRAN_SHA=fb03c1f37bf0258ada6e3e41698e3ad416fff4dad448fd746e01d8ccf1efdc0f
-		;;
-	    x86_64-cross)
-            export GFORTRAN_SHA=0a19ca91019a75501e504eed1cad2be6ea92ba457ec815beb0dd28652eb0ce3f
-		;;
-        *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
-	esac
-        if [[ "$(python3 tools/sha256sum.py gfortran-darwin-${arch}-${type}.tar.gz)" != "${GFORTRAN_SHA}  gfortran-darwin-${arch}-${type}.tar.gz" ]]; then
-            echo "shasum mismatch for gfortran-darwin-${arch}-${type}"
+        case ${arch}-${type} in
+            arm64-native)
+                local GFORTRAN_SHA=999a91eef894d32f99e3b641520bef9f475055067f301f0f1947b8b716b5922a
+            ;;
+            arm64-cross)
+                local export GFORTRAN_SHA=39ef2590629c2f238f1a67469fa429d8d6362425b277abb57fd2f3c982568a3f
+            ;;
+            x86_64-native)
+                local export GFORTRAN_SHA=fb03c1f37bf0258ada6e3e41698e3ad416fff4dad448fd746e01d8ccf1efdc0f
+            ;;
+            x86_64-cross)
+                local export GFORTRAN_SHA=0a19ca91019a75501e504eed1cad2be6ea92ba457ec815beb0dd28652eb0ce3f
+            ;;
+            *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
+        esac
+        local filesha=$(python3 tools/sha256sum.py gfortran-darwin-${arch}-${type}.tar.gz)
+        if [[ "$filesha" != "${GFORTRAN_SHA}" ]]; then
+            echo shasum mismatch for gfortran-darwin-${arch}-${type}
+            echo expected $GFORTRAN_SHA,
+            echo got      $filesha
             exit 1
         fi
         sudo mkdir -p /opt/
@@ -137,18 +140,18 @@ if [ "$(uname)" == "Darwin" ]; then
             sudo tar -xvf gfortran-darwin-${arch}-${type}.tar.gz
             sudo rm gfortran-darwin-${arch}-${type}.tar.gz
         popd
-	if [[ "${type}" == "native" ]]; then
-	    # Link these into /usr/local so that there's no need to add rpath or -L
-	    for f in libgfortran.dylib libgfortran.5.dylib libgcc_s.1.dylib libgcc_s.1.1.dylib libquadmath.dylib libquadmath.0.dylib; do
-                ln -sf /opt/gfortran-darwin-${arch}-${type}/lib/$f /usr/local/lib/$f
+        if [[ "${type}" == "native" ]]; then
+            # Link these into /usr/local so that there's no need to add rpath or -L
+            for f in libgfortran.dylib libgfortran.5.dylib libgcc_s.1.dylib libgcc_s.1.1.dylib libquadmath.dylib libquadmath.0.dylib; do
+                    ln -sf /opt/gfortran-darwin-${arch}-${type}/lib/$f /usr/local/lib/$f
             done
-	    # Add it to PATH
-	    ln -sf /opt/gfortran-darwin-${arch}-${type}/bin/gfortran /usr/local/bin/gfortran
-	fi
+            # Add it to PATH
+            ln -sf /opt/gfortran-darwin-${arch}-${type}/bin/gfortran /usr/local/bin/gfortran
+        fi
     }
 
     function install_arm64_cross_gfortran {
-	download_and_unpack_gfortran arm64 cross
+        download_and_unpack_gfortran arm64 cross
         export FC_ARM64="$(find /opt/gfortran-darwin-arm64-cross/bin -name "*-gfortran")"
         local libgfortran="$(find /opt/gfortran-darwin-arm64-cross/lib -name libgfortran.dylib)"
         local libdir=$(dirname $libgfortran)
@@ -157,6 +160,7 @@ if [ "$(uname)" == "Darwin" ]; then
         if [[ "${PLAT:-}" == "arm64" ]]; then
             export FC=$FC_ARM64
         fi
+        check_gfortran
     }
     function install_gfortran {
         download_and_unpack_gfortran $(uname -m) native
@@ -170,6 +174,7 @@ if [ "$(uname)" == "Darwin" ]; then
         # Get lib with gfortran suffix
         get_gf_lib_for_suf "gf_${GFORTRAN_SHA:0:7}" $@
     }
+
 else
     function install_gfortran {
         # No-op - already installed on manylinux image

From 69ecd819e47782da21a21cbd94a5423d32646697 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 08:11:02 +0200
Subject: [PATCH 06/22] specify MACOSX_DEPLOYMENT_TARGET=10.13 on macos-x86_64,
 cleanup

---
 tools/build_steps.sh    |  1 +
 tools/gfortran_utils.sh | 97 ++---------------------------------------
 2 files changed, 5 insertions(+), 93 deletions(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index b0f82bc..2c009d1 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -161,6 +161,7 @@ function do_build_lib {
             CFLAGS="$CFLAGS -arch x86_64"
             export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
             local dynamic_list="CORE2 NEHALEM SANDYBRIDGE HASWELL SKYLAKEX"
+            MACOSX_DEPLOYMENT_TARGET="10.13"
             ;;
         *-i686)
             local bitness=32
diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index 1d4c270..a407a57 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -16,68 +16,6 @@
 
 # Bash utilities for use with gfortran
 
-ARCHIVE_SDIR="${ARCHIVE_SDIR:-archives}"
-
-GF_UTIL_DIR=$(dirname "${BASH_SOURCE[0]}")
-
-function get_distutils_platform {
-    # Report platform as in form of distutils get_platform.
-    # This is like the platform tag that pip will use.
-    # Modify fat architecture tags on macOS to reflect compiled architecture
-
-    # Deprecate this function once get_distutils_platform_ex is used in all
-    # downstream projects
-    local plat=$1
-    case $plat in
-        i686|x86_64|arm64|universal2|intel|aarch64|s390x|ppc64le) ;;
-        *) echo Did not recognize plat $plat; return 1 ;;
-    esac
-    local uname=${2:-$(uname)}
-    if [ "$uname" != "Darwin" ]; then
-        if [ "$plat" == "intel" ]; then
-            echo plat=intel not allowed for Manylinux
-            return 1
-        fi
-        echo "manylinux1_$plat"
-        return
-    fi
-    # macOS 32-bit arch is i386
-    [ "$plat" == "i686" ] && plat="i386"
-    local target=$(echo $MACOSX_DEPLOYMENT_TARGET | tr .- _)
-    echo "macosx_${target}_${plat}"
-}
-
-function get_distutils_platform_ex {
-    # Report platform as in form of distutils get_platform.
-    # This is like the platform tag that pip will use.
-    # Modify fat architecture tags on macOS to reflect compiled architecture
-    # For non-darwin, report manylinux version
-    local plat=$1
-    local mb_ml_ver=${MB_ML_VER:-1}
-    case $plat in
-        i686|x86_64|arm64|universal2|intel|aarch64|s390x|ppc64le) ;;
-        *) echo Did not recognize plat $plat; return 1 ;;
-    esac
-    local uname=${2:-$(uname)}
-    if [ "$uname" != "Darwin" ]; then
-        if [ "$plat" == "intel" ]; then
-            echo plat=intel not allowed for Manylinux
-            return 1
-        fi
-        echo "manylinux${mb_ml_ver}_${plat}"
-        return
-    fi
-    # macOS 32-bit arch is i386
-    [ "$plat" == "i686" ] && plat="i386"
-    local target=$(echo $MACOSX_DEPLOYMENT_TARGET | tr .- _)
-    echo "macosx_${target}_${plat}"
-}
-
-function get_macosx_target {
-    # Report MACOSX_DEPLOYMENT_TARGET as given by distutils get_platform.
-    python3 -c "import sysconfig as s; print(s.get_config_vars()['MACOSX_DEPLOYMENT_TARGET'])"
-}
-
 function check_gfortran {
     # Check that gfortran exists on the path
     if [ -z "$(which gfortran)" ]; then
@@ -86,27 +24,7 @@ function check_gfortran {
     fi
 }
 
-function get_gf_lib_for_suf {
-    local suffix=$1
-    local prefix=$2
-    local plat=${3:-$PLAT}
-    local uname=${4:-$(uname)}
-    if [ -z "$prefix" ]; then echo Prefix not defined; exit 1; fi
-    local plat_tag=$(get_distutils_platform_ex $plat $uname)
-    if [ -n "$suffix" ]; then suffix="-$suffix"; fi
-    local fname="$prefix-${plat_tag}${suffix}.tar.gz"
-    local out_fname="${ARCHIVE_SDIR}/$fname"
-    [ -s $out_fname ] || (echo "$out_fname is empty"; exit 24)
-    echo "$out_fname"
-}
-
 if [ "$(uname)" == "Darwin" ]; then
-    mac_target=${MACOSX_DEPLOYMENT_TARGET:-$(get_macosx_target)}
-    export MACOSX_DEPLOYMENT_TARGET=$mac_target
-    # Keep this for now as some builds might depend on this being
-    # available before install_gfortran is called
-    # Set SDKROOT env variable if not set
-    export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
 
     function download_and_unpack_gfortran {
         local arch=$1
@@ -142,8 +60,10 @@ if [ "$(uname)" == "Darwin" ]; then
         popd
         if [[ "${type}" == "native" ]]; then
             # Link these into /usr/local so that there's no need to add rpath or -L
-            for f in libgfortran.dylib libgfortran.5.dylib libgcc_s.1.dylib libgcc_s.1.1.dylib libquadmath.dylib libquadmath.0.dylib; do
-                    ln -sf /opt/gfortran-darwin-${arch}-${type}/lib/$f /usr/local/lib/$f
+            for f in libgfortran.dylib libgfortran.5.dylib \
+                     libgcc_s.1.dylib libgcc_s.1.1.dylib libquadmath.dylib \
+                     libquadmath.0.dylib libgfortran.spec; do
+                ln -sf /opt/gfortran-darwin-${arch}-${type}/lib/$f /usr/local/lib/$f
             done
             # Add it to PATH
             ln -sf /opt/gfortran-darwin-${arch}-${type}/bin/gfortran /usr/local/bin/gfortran
@@ -170,19 +90,10 @@ if [ "$(uname)" == "Darwin" ]; then
         fi
     }
 
-    function get_gf_lib {
-        # Get lib with gfortran suffix
-        get_gf_lib_for_suf "gf_${GFORTRAN_SHA:0:7}" $@
-    }
-
 else
     function install_gfortran {
         # No-op - already installed on manylinux image
         check_gfortran
     }
 
-    function get_gf_lib {
-        # Get library with no suffix
-        get_gf_lib_for_suf "" $@
-    }
 fi

From 93794028c4c799442c8b6f94434326e12659a353 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 08:18:55 +0200
Subject: [PATCH 07/22] use gcc11 on macos-x86_64 so we can use
 MACOSX_DEPLOYMENT_TARGET='10.9'

---
 tools/build_steps.sh    | 4 +---
 tools/gfortran_utils.sh | 7 +++++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index 2c009d1..cc82788 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -47,8 +47,6 @@ function before_build {
             source tools/gfortran_utils.sh
             install_gfortran
         EOF
-        # Deployment target set by gfortran_utils
-        echo "Deployment target $MACOSX_DEPLOYMENT_TARGET"
 
         # Build the objconv tool
         (cd ${ROOT_DIR}/objconv && bash ../tools/build_objconv.sh)
@@ -161,7 +159,7 @@ function do_build_lib {
             CFLAGS="$CFLAGS -arch x86_64"
             export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
             local dynamic_list="CORE2 NEHALEM SANDYBRIDGE HASWELL SKYLAKEX"
-            MACOSX_DEPLOYMENT_TARGET="10.13"
+            MACOSX_DEPLOYMENT_TARGET="10.9"
             ;;
         *-i686)
             local bitness=32
diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index a407a57..086cb87 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -29,7 +29,7 @@ if [ "$(uname)" == "Darwin" ]; then
     function download_and_unpack_gfortran {
         local arch=$1
         local type=$2
-        curl -L -O https://github.com/isuruf/gcc/releases/download/gcc-15.2.0/gfortran-darwin-${arch}-${type}.tar.gz
+        local gccver=gcc-15.2.0
         case ${arch}-${type} in
             arm64-native)
                 local GFORTRAN_SHA=999a91eef894d32f99e3b641520bef9f475055067f301f0f1947b8b716b5922a
@@ -38,13 +38,16 @@ if [ "$(uname)" == "Darwin" ]; then
                 local export GFORTRAN_SHA=39ef2590629c2f238f1a67469fa429d8d6362425b277abb57fd2f3c982568a3f
             ;;
             x86_64-native)
-                local export GFORTRAN_SHA=fb03c1f37bf0258ada6e3e41698e3ad416fff4dad448fd746e01d8ccf1efdc0f
+                #override gccver
+                gccver=gcc-11.3.0.2
+                local export GFORTRAN_SHA=981367dd0ad4335613e91bbee453d60b6669f5d7e976d18c7bdb7f1966f26ae4
             ;;
             x86_64-cross)
                 local export GFORTRAN_SHA=0a19ca91019a75501e504eed1cad2be6ea92ba457ec815beb0dd28652eb0ce3f
             ;;
             *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
         esac
+        curl -L -O https://github.com/isuruf/gcc/releases/download/${gccver}/gfortran-darwin-${arch}-${type}.tar.gz
         local filesha=$(python3 tools/sha256sum.py gfortran-darwin-${arch}-${type}.tar.gz)
         if [[ "$filesha" != "${GFORTRAN_SHA}" ]]; then
             echo shasum mismatch for gfortran-darwin-${arch}-${type}

From 18c6e049893fd5d1d4d5ca06804f4d53885051e0 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 09:03:36 +0200
Subject: [PATCH 08/22] define FF rather than mess with PATH to get gfortran

---
 tools/gfortran_utils.sh | 55 +++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 35 deletions(-)

diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index 086cb87..afa8ab8 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -32,65 +32,50 @@ if [ "$(uname)" == "Darwin" ]; then
         local gccver=gcc-15.2.0
         case ${arch}-${type} in
             arm64-native)
-                local GFORTRAN_SHA=999a91eef894d32f99e3b641520bef9f475055067f301f0f1947b8b716b5922a
+                export GFORTRAN_SHA=999a91eef894d32f99e3b641520bef9f475055067f301f0f1947b8b716b5922a
             ;;
             arm64-cross)
-                local export GFORTRAN_SHA=39ef2590629c2f238f1a67469fa429d8d6362425b277abb57fd2f3c982568a3f
+                export GFORTRAN_SHA=39ef2590629c2f238f1a67469fa429d8d6362425b277abb57fd2f3c982568a3f
             ;;
             x86_64-native)
                 #override gccver
                 gccver=gcc-11.3.0.2
-                local export GFORTRAN_SHA=981367dd0ad4335613e91bbee453d60b6669f5d7e976d18c7bdb7f1966f26ae4
+                export GFORTRAN_SHA=981367dd0ad4335613e91bbee453d60b6669f5d7e976d18c7bdb7f1966f26ae4
             ;;
             x86_64-cross)
-                local export GFORTRAN_SHA=0a19ca91019a75501e504eed1cad2be6ea92ba457ec815beb0dd28652eb0ce3f
+                export GFORTRAN_SHA=0a19ca91019a75501e504eed1cad2be6ea92ba457ec815beb0dd28652eb0ce3f
             ;;
             *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
         esac
         curl -L -O https://github.com/isuruf/gcc/releases/download/${gccver}/gfortran-darwin-${arch}-${type}.tar.gz
         local filesha=$(python3 tools/sha256sum.py gfortran-darwin-${arch}-${type}.tar.gz)
         if [[ "$filesha" != "${GFORTRAN_SHA}" ]]; then
-            echo shasum mismatch for gfortran-darwin-${arch}-${type}
-            echo expected $GFORTRAN_SHA,
+            echo shasum mismatch for ${gccver}/gfortran-darwin-${arch}-${type}
+            echo expected $GFORTRAN_SHA
             echo got      $filesha
             exit 1
         fi
-        sudo mkdir -p /opt/
-        sudo cp "gfortran-darwin-${arch}-${type}.tar.gz" /opt/gfortran-darwin-${arch}-${type}.tar.gz
-        pushd /opt
-            sudo tar -xvf gfortran-darwin-${arch}-${type}.tar.gz
-            sudo rm gfortran-darwin-${arch}-${type}.tar.gz
-        popd
-        if [[ "${type}" == "native" ]]; then
-            # Link these into /usr/local so that there's no need to add rpath or -L
-            for f in libgfortran.dylib libgfortran.5.dylib \
-                     libgcc_s.1.dylib libgcc_s.1.1.dylib libquadmath.dylib \
-                     libquadmath.0.dylib libgfortran.spec; do
-                ln -sf /opt/gfortran-darwin-${arch}-${type}/lib/$f /usr/local/lib/$f
-            done
-            # Add it to PATH
-            ln -sf /opt/gfortran-darwin-${arch}-${type}/bin/gfortran /usr/local/bin/gfortran
+        if [[ ! -e /opt/gfortran ]]; then
+            sudo mkdir -p /opt/gfortran
+            sudo chmod 777 -p /opt/gfortran
         fi
-    }
-
-    function install_arm64_cross_gfortran {
-        download_and_unpack_gfortran arm64 cross
-        export FC_ARM64="$(find /opt/gfortran-darwin-arm64-cross/bin -name "*-gfortran")"
-        local libgfortran="$(find /opt/gfortran-darwin-arm64-cross/lib -name libgfortran.dylib)"
+        cp "gfortran-darwin-${arch}-${type}.tar.gz" /opt/gfortran/gfortran-darwin-${arch}-${type}.tar.gz
+        pushd /opt/gfortran
+        tar -xvf gfortran-darwin-${arch}-${type}.tar.gz
+        rm gfortran-darwin-${arch}-${type}.tar.gz
+        popd
+        export FC="$(find /opt/gfortran/gfortran-darwin-${arch}-${type}/bin -name "*-gfortran")"
+        local libgfortran="$(find /opt/gfortran/gfortran-darwin-${arch}-${cross}/lib -name libgfortran.dylib)"
         local libdir=$(dirname $libgfortran)
-
-        export FC_ARM64_LDFLAGS="-L$libdir -Wl,-rpath,$libdir"
-        if [[ "${PLAT:-}" == "arm64" ]]; then
-            export FC=$FC_ARM64
-        fi
-        check_gfortran
+        export FFLAGS="-L$libdir -Wl,-rpath,$libdir"
     }
+
     function install_gfortran {
         download_and_unpack_gfortran $(uname -m) native
-        check_gfortran
         if [[ "${PLAT:-}" == "universal2" || "${PLAT:-}" == "arm64" ]]; then
-            install_arm64_cross_gfortran
+            download_and_unpack_gfortran arm64 cross
         fi
+        check_gfortran
     }
 
 else

From 96de0849813e17bcefc7e42ae0e2c3a0d76aa445 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 09:32:01 +0200
Subject: [PATCH 09/22] typo, increase bash verbosity

---
 tools/build_steps.sh    | 1 +
 tools/gfortran_utils.sh | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index cc82788..b491857 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -44,6 +44,7 @@ function before_build {
         # force the architecture when using rosetta
         unalias gfortran || true
         arch -${PLAT} bash -s << "        EOF"
+            set -xe
             source tools/gfortran_utils.sh
             install_gfortran
         EOF
diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index afa8ab8..298e104 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -48,6 +48,7 @@ if [ "$(uname)" == "Darwin" ]; then
             *) echo Did not recognize arch-plat $arch-$plat; return 1 ;;
         esac
         curl -L -O https://github.com/isuruf/gcc/releases/download/${gccver}/gfortran-darwin-${arch}-${type}.tar.gz
+        ls -lh gfortran-darwin-${arch}-${type}.tar.gz
         local filesha=$(python3 tools/sha256sum.py gfortran-darwin-${arch}-${type}.tar.gz)
         if [[ "$filesha" != "${GFORTRAN_SHA}" ]]; then
             echo shasum mismatch for ${gccver}/gfortran-darwin-${arch}-${type}
@@ -65,7 +66,7 @@ if [ "$(uname)" == "Darwin" ]; then
         rm gfortran-darwin-${arch}-${type}.tar.gz
         popd
         export FC="$(find /opt/gfortran/gfortran-darwin-${arch}-${type}/bin -name "*-gfortran")"
-        local libgfortran="$(find /opt/gfortran/gfortran-darwin-${arch}-${cross}/lib -name libgfortran.dylib)"
+        local libgfortran="$(find /opt/gfortran/gfortran-darwin-${arch}-${type}/lib -name libgfortran.dylib)"
         local libdir=$(dirname $libgfortran)
         export FFLAGS="-L$libdir -Wl,-rpath,$libdir"
     }

From 21d2cc8ff79c3bc2b4bc1f2b8d9f8153732b7e45 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 09:41:06 +0200
Subject: [PATCH 10/22] typos

---
 tools/gfortran_utils.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index 298e104..3718d6a 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -39,7 +39,7 @@ if [ "$(uname)" == "Darwin" ]; then
             ;;
             x86_64-native)
                 #override gccver
-                gccver=gcc-11.3.0.2
+                gccver=gcc-11.3.0-2
                 export GFORTRAN_SHA=981367dd0ad4335613e91bbee453d60b6669f5d7e976d18c7bdb7f1966f26ae4
             ;;
             x86_64-cross)
@@ -58,7 +58,7 @@ if [ "$(uname)" == "Darwin" ]; then
         fi
         if [[ ! -e /opt/gfortran ]]; then
             sudo mkdir -p /opt/gfortran
-            sudo chmod 777 -p /opt/gfortran
+            sudo chmod 777 /opt/gfortran
         fi
         cp "gfortran-darwin-${arch}-${type}.tar.gz" /opt/gfortran/gfortran-darwin-${arch}-${type}.tar.gz
         pushd /opt/gfortran

From 2580a9969b3e881bb29b5b085cf22544c6d6e6c1 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 09:51:09 +0200
Subject: [PATCH 11/22] improve check_gfortran

---
 tools/gfortran_utils.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index 3718d6a..6b703c1 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -18,9 +18,15 @@
 
 function check_gfortran {
     # Check that gfortran exists on the path
-    if [ -z "$(which gfortran)" ]; then
+    if [[ -v FC  && -e "$FC" ]]; then
+        echo using gfortran from FC
+        echo $FC --version
+    elif [ -z "$(which gfortran)" ]; then
         echo Missing gfortran
         exit 1
+    else
+        echo using gfortran on the PATH
+        echo gfortran --version
     fi
 }
 

From ab388104204158c8e7cbcdfcf7669376028a207c Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 09:59:24 +0200
Subject: [PATCH 12/22] no -v in bash on macOS

---
 tools/gfortran_utils.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index 6b703c1..b801d94 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -18,7 +18,7 @@
 
 function check_gfortran {
     # Check that gfortran exists on the path
-    if [[ -v FC  && -e "$FC" ]]; then
+    if [[ -n "$FC"  && -e "$FC" ]]; then
         echo using gfortran from FC
         echo $FC --version
     elif [ -z "$(which gfortran)" ]; then

From bcf9294a364082b20ad353e2c5731800d5770b6a Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 11:50:46 +0200
Subject: [PATCH 13/22] macos: always use native gfortran, re-export env
 variables from gfortran_utils

---
 tools/build_steps.sh    | 20 +++++---------------
 tools/gfortran_utils.sh |  3 ---
 tools/local_build.sh    |  8 ++++++--
 3 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index b491857..bf07a3a 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -26,17 +26,6 @@ function get_os {
 function before_build {
     # Manylinux Python version set in build_lib
     if [ -n "$IS_OSX" ]; then
-        if [ ! -e /usr/local/lib ]; then
-            sudo mkdir -p /usr/local/lib
-            sudo chmod 777 /usr/local/lib
-            touch /usr/local/lib/.dir_exists
-        fi
-        if [ ! -e /usr/local/include ]; then
-            sudo mkdir -p /usr/local/include
-            sudo chmod 777 /usr/local/include
-            touch /usr/local/include/.dir_exists
-        fi
-        # get_macpython_environment ${MB_PYTHON_VERSION} venv
         python3.9 -m venv venv
         source venv/bin/activate
         # Use gfortran from conda
@@ -48,6 +37,11 @@ function before_build {
             source tools/gfortran_utils.sh
             install_gfortran
         EOF
+        # re-export these, since we ran in a shell
+        export FC="$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/bin -name "*-gfortran")"
+        local libgfortran="$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/lib -name libgfortran.dylib)"
+        local libdir=$(dirname $libgfortran)
+        export FFLAGS="-L$libdir -Wl,-rpath,$libdir"
 
         # Build the objconv tool
         (cd ${ROOT_DIR}/objconv && bash ../tools/build_objconv.sh)
@@ -61,13 +55,9 @@ function clean_code {
     [ -z "$build_commit" ] && echo "build_commit not defined" && exit 1
     pushd OpenBLAS
     git fetch origin --tags
-    echo after git fetch origin
     git checkout $build_commit
-    echo after git checkout $build_commit
     git clean -fxd 
-    echo after git clean
     git submodule update --init --recursive
-    echo after git submodule update
     popd
 }
 
diff --git a/tools/gfortran_utils.sh b/tools/gfortran_utils.sh
index b801d94..74ac108 100644
--- a/tools/gfortran_utils.sh
+++ b/tools/gfortran_utils.sh
@@ -79,9 +79,6 @@ if [ "$(uname)" == "Darwin" ]; then
 
     function install_gfortran {
         download_and_unpack_gfortran $(uname -m) native
-        if [[ "${PLAT:-}" == "universal2" || "${PLAT:-}" == "arm64" ]]; then
-            download_and_unpack_gfortran arm64 cross
-        fi
         check_gfortran
     }
 
diff --git a/tools/local_build.sh b/tools/local_build.sh
index 4754c2c..a436b26 100755
--- a/tools/local_build.sh
+++ b/tools/local_build.sh
@@ -5,8 +5,12 @@ set -e
 
 # Set extra env
 if [[ $(uname) == "Darwin" ]]; then
-    # Force x86_64
-    export PLAT=x86_64
+    # export PLAT=x86_64
+    export PLAT=arm64
+    # Force installation of gfortran
+    export IS_MACOS=1
+    export IS_OSX=1
+
 elif [[ $(uname -m) == "x86_64" ]]; then
     echo got x86_64
     export PLAT=x86_64

From af083b77d630430e2ee0caff118a69c54af326e4 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 12:08:43 +0200
Subject: [PATCH 14/22] revert removal of check for /usr/local/include and
 /usr/local/lib

---
 tools/build_steps.sh | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index bf07a3a..c9ec16a 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -24,8 +24,18 @@ function get_os {
 
 
 function before_build {
-    # Manylinux Python version set in build_lib
+    if [ ! -e /usr/local/lib ]; then
+        sudo mkdir -p /usr/local/lib
+        sudo chmod 777 /usr/local/lib
+        touch /usr/local/lib/.dir_exists
+    fi
+    if [ ! -e /usr/local/include ]; then
+        sudo mkdir -p /usr/local/include
+        sudo chmod 777 /usr/local/include
+        touch /usr/local/include/.dir_exists
+    fi
     if [ -n "$IS_OSX" ]; then
+        # get_macpython_environment ${MB_PYTHON_VERSION} venv
         python3.9 -m venv venv
         source venv/bin/activate
         # Use gfortran from conda

From aebe89c475fa51668511c76e8a9622fc07b60e37 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Fri, 21 Nov 2025 12:27:52 +0200
Subject: [PATCH 15/22] hardcode path to libgfortran.dylib

---
 tools/build_steps.sh | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index c9ec16a..d0cc7df 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -48,10 +48,9 @@ function before_build {
             install_gfortran
         EOF
         # re-export these, since we ran in a shell
-        export FC="$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/bin -name "*-gfortran")"
-        local libgfortran="$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/lib -name libgfortran.dylib)"
-        local libdir=$(dirname $libgfortran)
-        export FFLAGS="-L$libdir -Wl,-rpath,$libdir"
+        export FC=$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/bin -name "*-gfortran")
+        local libdir=/opt/gfortran/gfortran-darwin-${PLAT}-native/lib
+        export FFLAGS="-L${libdir} -Wl,-rpath,${libdir}"
 
         # Build the objconv tool
         (cd ${ROOT_DIR}/objconv && bash ../tools/build_objconv.sh)

From f64e97b7af8b99feea96952653c019f9790748e1 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Mon, 24 Nov 2025 12:41:44 +0200
Subject: [PATCH 16/22] use image's gfortran-15 on macos-arm64, remove tarball
 name mangling

---
 tools/build_steps.sh | 53 ++++++++++++++++++++++++--------------------
 1 file changed, 29 insertions(+), 24 deletions(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index d0cc7df..8d5c1b8 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -38,20 +38,6 @@ function before_build {
         # get_macpython_environment ${MB_PYTHON_VERSION} venv
         python3.9 -m venv venv
         source venv/bin/activate
-        # Use gfortran from conda
-        # Since install_fortran uses `uname -a` to determine arch,
-        # force the architecture when using rosetta
-        unalias gfortran || true
-        arch -${PLAT} bash -s << "        EOF"
-            set -xe
-            source tools/gfortran_utils.sh
-            install_gfortran
-        EOF
-        # re-export these, since we ran in a shell
-        export FC=$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/bin -name "*-gfortran")
-        local libdir=/opt/gfortran/gfortran-darwin-${PLAT}-native/lib
-        export FFLAGS="-L${libdir} -Wl,-rpath,${libdir}"
-
         # Build the objconv tool
         (cd ${ROOT_DIR}/objconv && bash ../tools/build_objconv.sh)
     fi
@@ -115,9 +101,9 @@ function build_lib {
     local manylinux=${MB_ML_VER:-1}
     if [ -n "$IS_OSX" ]; then
         # Do build, add gfortran hash to end of name
-        do_build_lib "$plat" "gf_${GFORTRAN_SHA:0:7}" "$interface64" "$nightly"
+        do_build_lib "$plat" "$interface64" "$nightly"
     else
-        do_build_lib "$plat" "" "$interface64" "$nightly"
+        do_build_lib "$plat" "$interface64" "$nightly"
     fi
 }
 
@@ -134,8 +120,6 @@ function do_build_lib {
     # Build openblas lib
     # Input arg
     #     plat - one of i686, x86_64, arm64
-    #     suffix (optional) - suffix for output archive name
-    #                         Suffix added with hyphen prefix
     #     interface64 (optional) - whether to build ILP64 openblas
     #                              with 64_ symbol suffix
     #     nightly (optional) - whether to build for nightlies
@@ -143,9 +127,8 @@ function do_build_lib {
     # Depends on globals
     #     BUILD_PREFIX - install suffix e.g. "/usr/local"
     local plat=$1
-    local suffix=$2
-    local interface64=$3
-    local nightly=$4
+    local interface64=$2
+    local nightly=$3
     case $(get_os)-$plat in
         Linux-x86_64)
             local bitness=64
@@ -155,6 +138,20 @@ function do_build_lib {
         Darwin-x86_64)
             local bitness=64
             local target="CORE2"
+            # Use gfortran from conda
+            # Since install_fortran uses `uname -a` to determine arch,
+            # force the architecture when using rosetta
+            unalias gfortran || true
+            arch -${PLAT} bash -s << "            EOF"
+                set -xe
+                source tools/gfortran_utils.sh
+                install_gfortran
+            EOF
+            # re-export these, since we ran in a shell
+            export FC=$(find /opt/gfortran/gfortran-darwin-${PLAT}-native/bin -name "*-gfortran")
+            local libdir=/opt/gfortran/gfortran-darwin-${PLAT}-native/lib
+            export FFLAGS="-L${libdir} -Wl,-rpath,${libdir}"
+
             export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH
             CFLAGS="$CFLAGS -arch x86_64"
             export SDKROOT=${SDKROOT:-$(xcrun --show-sdk-path)}
@@ -176,6 +173,16 @@ function do_build_lib {
             fi
             ;;
         Darwin-arm64)
+            export FC=gfortran-15
+            which $FC
+            # guess?
+            local libdir=/opt/homebrew/Cellar/gcc/15.2.0/lib/gcc/current
+            if [! -d $libdir]; then
+                echo where is libfortran.a?
+                find /opt -name libgfortran.a
+                exit 1
+            fi
+            export FFLAGS="-L${libdir} -Wl,-rpath,${libdir}"
             local bitness=64
             local target="VORTEX"
             CFLAGS="$CFLAGS -ftrapping-math -mmacos-version-min=11.0"
@@ -244,8 +251,6 @@ function do_build_lib {
     fi
     mv $BUILD_PREFIX/lib/pkgconfig/openblas*.pc $BUILD_PREFIX/lib/pkgconfig/scipy-openblas.pc
     local plat_tag=$(get_plat_tag $plat)
-    local suff=""
-    [ -n "$suffix" ] && suff="-$suffix"
     if [ "$interface64" = "1" ]; then
         # OpenBLAS does not install the symbol suffixed static library,
         # do it ourselves
@@ -258,7 +263,7 @@ function do_build_lib {
     rm $BUILD_PREFIX/lib/pkgconfig/scipy-openblas.pc.bak
     fi
 
-    local out_name="openblas${symbolsuffix}-${version}-${plat_tag}${suff}.tar.gz"
+    local out_name="openblas${symbolsuffix}-${version}-${plat_tag}.tar.gz"
     tar zcvf libs/$out_name \
         $BUILD_PREFIX/include/*blas* \
         $BUILD_PREFIX/include/*lapack* \

From 5f0c1f2cc9d94a3ff465612957c20af5a6f65375 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Mon, 24 Nov 2025 14:19:55 +0200
Subject: [PATCH 17/22] typo

---
 tools/build_steps.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index 8d5c1b8..b211725 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -177,7 +177,7 @@ function do_build_lib {
             which $FC
             # guess?
             local libdir=/opt/homebrew/Cellar/gcc/15.2.0/lib/gcc/current
-            if [! -d $libdir]; then
+            if [ ! -d $libdir]; then
                 echo where is libfortran.a?
                 find /opt -name libgfortran.a
                 exit 1

From 43f5e557367a601b190c18124e7cfafa66d16f84 Mon Sep 17 00:00:00 2001
From: mayeut <mayeut@users.noreply.github.com>
Date: Mon, 24 Nov 2025 14:30:30 +0200
Subject: [PATCH 18/22] fixes

---
 tools/build_steps.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index b211725..fdd578d 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -192,6 +192,7 @@ function do_build_lib {
             ;;
         *-s390x)
             local bitness=64
+            local target="ZARCH_GENERIC"
             ;;
         *-ppc64le)
             local bitness=64
@@ -221,7 +222,10 @@ function do_build_lib {
     git config --global --add safe.directory '*'
     pushd OpenBLAS
     patch_source
+    # force failure when fortran compiler is no detected
+    sed -i.bak -e 's/info OpenBLAS: Detecting fortran compiler failed/error OpenBLAS: Detecting fortran compiler failed/g' Makefile
     echo start building
+
     if [ "$plat" == "loongarch64" ]; then
         # https://github.com/OpenMathLib/OpenBLAS/blob/develop/.github/workflows/loongarch64.yml#L65
         echo -n > utest/test_dsdot.c

From 5a0c095de3346e243225c0bb60fa5e495af99693 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Mon, 24 Nov 2025 17:01:03 +0200
Subject: [PATCH 19/22] typo

---
 tools/build_steps.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index fdd578d..82f8e10 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -177,7 +177,7 @@ function do_build_lib {
             which $FC
             # guess?
             local libdir=/opt/homebrew/Cellar/gcc/15.2.0/lib/gcc/current
-            if [ ! -d $libdir]; then
+            if [ ! -d $libdir ]; then
                 echo where is libfortran.a?
                 find /opt -name libgfortran.a
                 exit 1

From 8c0ea320887c9155273dba50651537a72c9e0a5b Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Mon, 24 Nov 2025 20:28:40 +0200
Subject: [PATCH 20/22] do more debug

---
 tools/build_steps.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index 82f8e10..872b47b 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -177,7 +177,7 @@ function do_build_lib {
             which $FC
             # guess?
             local libdir=/opt/homebrew/Cellar/gcc/15.2.0/lib/gcc/current
-            if [ ! -d $libdir ]; then
+            if [ ! -e $libdir/libgfortran.a ]; then
                 echo where is libfortran.a?
                 find /opt -name libgfortran.a
                 exit 1
@@ -234,14 +234,14 @@ function do_build_lib {
     fi
     if [ -n "$dynamic_list" ]; then
         CFLAGS="$CFLAGS -fvisibility=protected -Wno-uninitialized" \
-        make BUFFERSIZE=20 DYNAMIC_ARCH=1 QUIET_MAKE=1 \
+        make BUFFERSIZE=20 DYNAMIC_ARCH=1 \
             USE_OPENMP=0 NUM_THREADS=64 \
             DYNAMIC_LIST="$dynamic_list" \
             BINARY="$bitness" $interface_flags \
             TARGET="$target"
     else
         CFLAGS="$CFLAGS -fvisibility=protected -Wno-uninitialized" \
-        make BUFFERSIZE=20 DYNAMIC_ARCH=1 QUIET_MAKE=1 \
+        make BUFFERSIZE=20 DYNAMIC_ARCH=1 \
             USE_OPENMP=0 NUM_THREADS=64 \
             BINARY="$bitness" $interface_flags \
             TARGET="$target"

From 6d6c0ca6fc07ac6f310fac83ee0bb959bbac3d2a Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Mon, 24 Nov 2025 21:38:26 +0200
Subject: [PATCH 21/22] use GFORTRAN_LIBDIR like upstream

---
 tools/build_steps.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index 872b47b..e7d20b9 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -183,6 +183,7 @@ function do_build_lib {
                 exit 1
             fi
             export FFLAGS="-L${libdir} -Wl,-rpath,${libdir}"
+            export GFORTRAN_LIBDIR=$($FC -print-file-name=libgfortran.dylib | xargs dirname)
             local bitness=64
             local target="VORTEX"
             CFLAGS="$CFLAGS -ftrapping-math -mmacos-version-min=11.0"

From 84206da71c8d20178bd80a8b6e3f098e7b2c8bc4 Mon Sep 17 00:00:00 2001
From: mattip <matti.picus@gmail.com>
Date: Mon, 24 Nov 2025 22:36:59 +0200
Subject: [PATCH 22/22] add LDFLAGS too

---
 tools/build_steps.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/build_steps.sh b/tools/build_steps.sh
index e7d20b9..de1017c 100644
--- a/tools/build_steps.sh
+++ b/tools/build_steps.sh
@@ -184,6 +184,7 @@ function do_build_lib {
             fi
             export FFLAGS="-L${libdir} -Wl,-rpath,${libdir}"
             export GFORTRAN_LIBDIR=$($FC -print-file-name=libgfortran.dylib | xargs dirname)
+            export LDFLAGS="-L/opt/homebrew/opt/llvm/lib -L$GFORTRAN_LIBDIR"
             local bitness=64
             local target="VORTEX"
             CFLAGS="$CFLAGS -ftrapping-math -mmacos-version-min=11.0"