From e880a1822b2a41c999164cb46c148f2bed198bfb Mon Sep 17 00:00:00 2001
From: shivansh-ibm <shivansh.s1@ibm.com>
Date: Thu, 9 Jul 2026 00:12:54 -0700
Subject: [PATCH] Added build script for scipy ubi10.1 build script for CPD 
 RT26.1

---
 s/scikit-learn/build_info.json                |   9 +-
 s/scikit-learn/scikit-learn_1.8.0_ubi_10.1.sh | 164 ++++++++++++++++++
 s/scikit-learn/script.sh                      | 164 ++++++++++++++++++
 3 files changed, 334 insertions(+), 3 deletions(-)
 create mode 100644 s/scikit-learn/scikit-learn_1.8.0_ubi_10.1.sh
 create mode 100644 s/scikit-learn/script.sh

diff --git a/s/scikit-learn/build_info.json b/s/scikit-learn/build_info.json
index 38b7cfc986..45eabd7e5c 100644
--- a/s/scikit-learn/build_info.json
+++ b/s/scikit-learn/build_info.json
@@ -1,11 +1,11 @@
 {
-   "maintainer": "SakshiJain0302",
+   "maintainer": "shivansh-ibm",
    "package_name": "scikit-learn",
    "github_url": "https://github.com/scikit-learn/scikit-learn.git",
-   "version": "1.6.1",
+   "version": "1.8.0",
    "wheel_build" : true,
    "default_branch": "main",
-   "build_script": "scikit-learn_ubi_9.3.sh",
+   "build_script": "scikit-learn_1.8.0_ubi_10.1.sh",
    "package_dir": "s/scikit-learn",
    "docker_build": false,
    "validate_build_script": true,
@@ -25,6 +25,9 @@
    "1.7.*":{
      "build_script": "scikit-learn_1.7.0_ubi_9.3.sh"
    },
+   "1.8.*":{
+     "build_script": "scikit-learn_1.8.0_ubi_10.1.sh"
+   },
    "*": {
      "build_script": "scikit-learn_ubi_9.3.sh"
   }
diff --git a/s/scikit-learn/scikit-learn_1.8.0_ubi_10.1.sh b/s/scikit-learn/scikit-learn_1.8.0_ubi_10.1.sh
new file mode 100644
index 0000000000..8c5b7c6114
--- /dev/null
+++ b/s/scikit-learn/scikit-learn_1.8.0_ubi_10.1.sh
@@ -0,0 +1,164 @@
+#!/bin/bash -e
+# -----------------------------------------------------------------------------
+#
+# Package       : scikit-learn
+# Version       : 1.8.0
+# Source repo   : https://github.com/scikit-learn/scikit-learn.git
+# Tested on     : UBI 10.1
+# Language      : Python, Cython, C++
+# Ci-Check  : True
+# Script License: Apache License 2.0
+# Maintainer    : Shivansh Sharma <Shivansh.s1@ibm.com>
+#
+# Disclaimer: This script has been tested in root mode on given
+# ==========  platform using the mentioned version of the package.
+#             It may not work as expected with newer versions of the
+#             package and/or distribution. In such case, please
+#             contact "Maintainer" of this script.
+#
+# -----------------------------------------------------------------------------
+
+set -ex
+
+PACKAGE_NAME=scikit-learn
+PACKAGE_VERSION=${1:-1.8.0}
+PACKAGE_URL=https://github.com/scikit-learn/scikit-learn.git
+PACKAGE_DIR=scikit-learn
+CURRENT_DIR=$(pwd)
+
+yum install -y git make cmake wget python3.12 python3.12-devel python3.12-pip pkgconfig g++ gcc-c++ gcc-gfortran
+
+
+
+#install openblas using the same method as openblas.sh
+#clone and install openblas from source
+
+OPENBLAS_VERSION="0.3.33"
+OPENBLAS_URL="https://github.com/xianyi/OpenBLAS"
+
+git clone -b v$OPENBLAS_VERSION $OPENBLAS_URL
+cd OpenBLAS
+git submodule update --init
+
+# Setting the env variables for OpenBLAS build
+LDFLAGS=$(echo "${LDFLAGS}" | sed "s/-Wl,--gc-sections//g")
+# See this workaround
+# ( https://github.com/xianyi/OpenBLAS/issues/818#issuecomment-207365134 ).
+export CF="${CFLAGS} -Wno-unused-parameter -Wno-old-style-declaration"
+unset CFLAGS
+export USE_OPENMP=1
+export PREFIX=/usr/local
+
+declare -a build_opts
+build_opts+=(USE_OPENMP=${USE_OPENMP})
+
+if [ ! -z "$FFLAGS" ]; then
+    # Don't use GNU OpenMP, which is not fork-safe
+    export FFLAGS="${FFLAGS/-fopenmp/ }"
+    export FFLAGS="${FFLAGS} -frecursive"
+    export LAPACK_FFLAGS="${FFLAGS}"
+fi
+
+build_opts+=(BINARY="64")
+build_opts+=(DYNAMIC_ARCH=1)
+
+# Set target platform-/CPU-specific options
+export PLATFORM=$(uname -m)
+case "${PLATFORM}" in
+    ppc64le)
+        build_opts+=(TARGET="POWER8")
+        BUILD_BFLOAT16=1
+        ;;
+    s390x)
+        build_opts+=(TARGET="Z14")
+        ;;
+    x86_64)
+        # Oldest x86/x64 target microarch that has 64-bit extensions
+        build_opts+=(TARGET="PRESCOTT")
+        ;;
+esac
+
+# Placeholder for future builds that may include ILP64 variants.
+build_opts+=(INTERFACE64=0)
+build_opts+=(SYMBOLSUFFIX="")
+# Build LAPACK.
+build_opts+=(NO_LAPACK=0)
+# Enable threading. This can be controlled to a certain number by
+# setting OPENBLAS_NUM_THREADS before loading the library.
+build_opts+=(USE_THREAD=1)
+build_opts+=(NUM_THREADS=8)
+# Disable CPU/memory affinity handling to avoid problems with NumPy and R
+build_opts+=(NO_AFFINITY=1)
+
+#Build OpenBLAS
+make -j8 ${build_opts[@]} \
+     HOST=${HOST} CROSS_SUFFIX="${HOST}-" \
+     CFLAGS="${CF}" FFLAGS="${FFLAGS}"
+
+CFLAGS="${CF}" FFLAGS="${FFLAGS}" \
+    make install PREFIX="${PREFIX}" ${build_opts[@]}
+
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib64:/usr/local/lib
+cd ..
+
+echo "--------------------openblas installed-------------------------------"
+
+cd $CURRENT_DIR
+
+# Install Python dependencies
+pip install numpy==2.2.6 cython meson-python ninja joblib threadpoolctl patchelf pytest
+
+# Build and install SciPy from source to use custom OpenBLAS
+SCIPY_VERSION="v1.17.1"
+SCIPY_URL="https://github.com/scipy/scipy"
+cd $CURRENT_DIR
+git clone $SCIPY_URL
+cd scipy
+git checkout $SCIPY_VERSION
+git submodule update --init
+
+# Set environment variables for SciPy to find custom OpenBLAS
+export OpenBLAS_HOME="/usr/local"
+export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/local/lib64/pkgconfig:${PKG_CONFIG_PATH}"
+
+# Install additional SciPy build dependencies
+pip install beniget==0.4.2.post1 Cython>=3.1.2 gast==0.6.0 meson==1.6.0 meson-python==0.17.1 packaging pybind11 pyproject-metadata pythran==0.17.0 setuptools==75.3.0 pooch build wheel
+
+# Build and install SciPy from source
+if ! pip install . --no-build-isolation; then
+    echo "Failed to build SciPy from source with custom OpenBLAS"
+    exit 1
+fi
+
+cd $CURRENT_DIR
+# clone source repository
+git clone $PACKAGE_URL
+cd $PACKAGE_NAME
+git checkout $PACKAGE_VERSION
+git submodule update --init
+
+#build wheel 
+python3.12 -m pip wheel -vv --no-build-isolation --no-deps .
+
+# Install scikit-learn
+if ! pip install --editable . --no-build-isolation ; then
+    echo "------------------$PACKAGE_NAME:Install_fails-------------------------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub | Fail |  Install_Fails"
+    exit 1
+fi
+
+# test using pytest - set below flag as suggested in GitHub forums to resolve ImportPathMismatchError
+
+export PY_IGNORE_IMPORTMISMATCH=1
+if ! pytest sklearn/tests/test_random_projection.py; then
+    echo "--------------------$PACKAGE_NAME:Install_success_but_test_fails---------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub | Fail |  Install_success_but_test_Fails"
+    exit 2
+else
+    echo "------------------$PACKAGE_NAME:Install_&_test_both_success-------------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub  | Pass |  Both_Install_and_Test_Success"
+    exit 0
+fi
diff --git a/s/scikit-learn/script.sh b/s/scikit-learn/script.sh
new file mode 100644
index 0000000000..cb9733e328
--- /dev/null
+++ b/s/scikit-learn/script.sh
@@ -0,0 +1,164 @@
+#!/bin/bash -e
+# -----------------------------------------------------------------------------
+#
+# Package       : scikit-learn
+# Version       : 1.8.0
+# Source repo   : https://github.com/scikit-learn/scikit-learn.git
+# Tested on     : UBI 10.1
+# Language      : Python, Cython, C++
+# Ci-Check  : True
+# Script License: Apache License 2.0
+# Maintainer    : Rushikesh Sathe <Rushikesh.Sathe1@ibm.com>
+#
+# Disclaimer: This script has been tested in root mode on given
+# ==========  platform using the mentioned version of the package.
+#             It may not work as expected with newer versions of the
+#             package and/or distribution. In such case, please
+#             contact "Maintainer" of this script.
+#
+# -----------------------------------------------------------------------------
+
+set -ex
+
+PACKAGE_NAME=scikit-learn
+PACKAGE_VERSION=${1:-1.8.0}
+PACKAGE_URL=https://github.com/scikit-learn/scikit-learn.git
+PACKAGE_DIR=scikit-learn
+CURRENT_DIR=$(pwd)
+
+yum install -y git make cmake wget python3.12 python3.12-devel python3.12-pip pkgconfig g++ gcc-c++ gcc-gfortran
+
+
+
+#install openblas using the same method as openblas.sh
+#clone and install openblas from source
+
+OPENBLAS_VERSION="0.3.33"
+OPENBLAS_URL="https://github.com/xianyi/OpenBLAS"
+
+git clone -b v$OPENBLAS_VERSION $OPENBLAS_URL
+cd OpenBLAS
+git submodule update --init
+
+# Setting the env variables for OpenBLAS build
+LDFLAGS=$(echo "${LDFLAGS}" | sed "s/-Wl,--gc-sections//g")
+# See this workaround
+# ( https://github.com/xianyi/OpenBLAS/issues/818#issuecomment-207365134 ).
+export CF="${CFLAGS} -Wno-unused-parameter -Wno-old-style-declaration"
+unset CFLAGS
+export USE_OPENMP=1
+export PREFIX=/usr/local
+
+declare -a build_opts
+build_opts+=(USE_OPENMP=${USE_OPENMP})
+
+if [ ! -z "$FFLAGS" ]; then
+    # Don't use GNU OpenMP, which is not fork-safe
+    export FFLAGS="${FFLAGS/-fopenmp/ }"
+    export FFLAGS="${FFLAGS} -frecursive"
+    export LAPACK_FFLAGS="${FFLAGS}"
+fi
+
+build_opts+=(BINARY="64")
+build_opts+=(DYNAMIC_ARCH=1)
+
+# Set target platform-/CPU-specific options
+export PLATFORM=$(uname -m)
+case "${PLATFORM}" in
+    ppc64le)
+        build_opts+=(TARGET="POWER8")
+        BUILD_BFLOAT16=1
+        ;;
+    s390x)
+        build_opts+=(TARGET="Z14")
+        ;;
+    x86_64)
+        # Oldest x86/x64 target microarch that has 64-bit extensions
+        build_opts+=(TARGET="PRESCOTT")
+        ;;
+esac
+
+# Placeholder for future builds that may include ILP64 variants.
+build_opts+=(INTERFACE64=0)
+build_opts+=(SYMBOLSUFFIX="")
+# Build LAPACK.
+build_opts+=(NO_LAPACK=0)
+# Enable threading. This can be controlled to a certain number by
+# setting OPENBLAS_NUM_THREADS before loading the library.
+build_opts+=(USE_THREAD=1)
+build_opts+=(NUM_THREADS=8)
+# Disable CPU/memory affinity handling to avoid problems with NumPy and R
+build_opts+=(NO_AFFINITY=1)
+
+#Build OpenBLAS
+make -j8 ${build_opts[@]} \
+     HOST=${HOST} CROSS_SUFFIX="${HOST}-" \
+     CFLAGS="${CF}" FFLAGS="${FFLAGS}"
+
+CFLAGS="${CF}" FFLAGS="${FFLAGS}" \
+    make install PREFIX="${PREFIX}" ${build_opts[@]}
+
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib64:/usr/local/lib
+cd ..
+
+echo "--------------------openblas installed-------------------------------"
+
+cd $CURRENT_DIR
+
+# Install Python dependencies
+pip install numpy==2.2.6 cython meson-python ninja joblib threadpoolctl patchelf pytest
+
+# Build and install SciPy from source to use custom OpenBLAS
+SCIPY_VERSION="v1.17.1"
+SCIPY_URL="https://github.com/scipy/scipy"
+cd $CURRENT_DIR
+git clone $SCIPY_URL
+cd scipy
+git checkout $SCIPY_VERSION
+git submodule update --init
+
+# Set environment variables for SciPy to find custom OpenBLAS
+export OpenBLAS_HOME="/usr/local"
+export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/local/lib64/pkgconfig:${PKG_CONFIG_PATH}"
+
+# Install additional SciPy build dependencies
+pip install beniget==0.4.2.post1 Cython>=3.1.2 gast==0.6.0 meson==1.6.0 meson-python==0.17.1 packaging pybind11 pyproject-metadata pythran==0.17.0 setuptools==75.3.0 pooch build wheel
+
+# Build and install SciPy from source
+if ! pip install . --no-build-isolation; then
+    echo "Failed to build SciPy from source with custom OpenBLAS"
+    exit 1
+fi
+
+cd $CURRENT_DIR
+# clone source repository
+git clone $PACKAGE_URL
+cd $PACKAGE_NAME
+git checkout $PACKAGE_VERSION
+git submodule update --init
+
+#build wheel 
+python3.12 -m pip wheel -vv --no-build-isolation --no-deps .
+
+# Install scikit-learn
+if ! pip install --editable . --no-build-isolation ; then
+    echo "------------------$PACKAGE_NAME:Install_fails-------------------------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub | Fail |  Install_Fails"
+    exit 1
+fi
+
+# test using pytest - set below flag as suggested in GitHub forums to resolve ImportPathMismatchError
+
+export PY_IGNORE_IMPORTMISMATCH=1
+if ! pytest sklearn/tests/test_random_projection.py; then
+    echo "--------------------$PACKAGE_NAME:Install_success_but_test_fails---------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub | Fail |  Install_success_but_test_Fails"
+    exit 2
+else
+    echo "------------------$PACKAGE_NAME:Install_&_test_both_success-------------------------"
+    echo "$PACKAGE_URL $PACKAGE_NAME"
+    echo "$PACKAGE_NAME  |  $PACKAGE_URL | $PACKAGE_VERSION | GitHub  | Pass |  Both_Install_and_Test_Success"
+    exit 0
+fi