Reverting changes for now to debug

Author: TidbitSoftware

etc/environment.sh

@@ -325,13 +325,6 @@ if [ -d "${PETSC_ROOT_TEMP}" ]; then
 	fi
 fi
 
-# Set BLAS/LAPACK_ROOT if macOS and not installed via PETSc
-if [[ ${OS_NAME} == "Darwin" ] && [ -z "${BLAS_ROOT+x}" ]]; then
-	BLASLAPACK_ROOT=$(find /Library -name libblas* 2>/dev/null | sed "s/[0-9]*://g" | head -1)
-	export BLAS_ROOT=${BLASLAPACK_ROOT%/*}
-	export LAPACK_ROOT=${BLAS_ROOT}
-fi
-
 MPLAPACK_ROOT_TEMP="${ISSM_EXT_DIR}/mplapack/install"
 if [ -d "${MPLAPACK_ROOT_TEMP}" ]; then
 	cplus_include_path_prepend "${MPLAPACK_ROOT_TEMP}/include"

externalpackages/petsc/install-3.23-mac.sh

@@ -32,6 +32,7 @@ cd ${PETSC_DIR}
 	--with-x=0 \
 	--with-ssl=0 \
 	--with-pic=1 \
+	--download-fblaslapack=1 \
 	--download-metis=1 \
 	--download-mpich=1 \
 	--download-mumps=1 \