Revert to pkgconfig

pyproject.toml

@@ -5,7 +5,7 @@ requires = ["setuptools>=64",
             "numpy>=1.24.4",
             "cython>=0.29",
             "setuptools>=61.0",
-            "scipy>=1.7.1"]
+            "scipy>=1.10.1"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -18,7 +18,7 @@ dependencies = [
   "numpy>=1.24.4",
   "pandas>=2.2.2",
   "python-dateutil>=2.0.0",
-  "scipy>=1.7.1",
+  "scipy>=1.10.1",
   "sympy>=1.0.0",
   "numpydoc>=0.6.0",
   "cython>=0.29"
@@ -64,6 +64,7 @@ manylinux-x86_64-image = "manylinux2014"
 # Install blas on linux
 [tool.cibuildwheel.linux]
 before-all = """
+yum -y update && yum -y install pkgconfig openblas-devel openblas
 #python -m pip install --upgrade pip
 #pip install --prefer-binary scipy
 # Note we can't just use the version from yum as it doesn't have a pkgconfig
@@ -74,7 +75,7 @@ before-all = """
 #export PKG_CONFIG_PATH=/usr/local/OpenBLAS/lib/pkgconfig
 """
 # 
-# "yum -y update && yum -y install openblas-devel openblas"
+# "yum -y update && yum -y install pkgconfig openblas-devel openblas"
 #before-test = "yum -y update && yum -y install openblas-devel openblas"