diff --git a/build/pkgs/cvxopt/spkg-install.in b/build/pkgs/cvxopt/spkg-install.in
index 8179125fc9a..1140a482d1a 100644
--- a/build/pkgs/cvxopt/spkg-install.in
+++ b/build/pkgs/cvxopt/spkg-install.in
@@ -61,9 +61,9 @@ cvxopt_output() {
 # configure cvxopt by variables
 # Note that *_INC_DIR variables have to be non-empty.
 # Compilers don't like "-I ".
-export CVXOPT_BLAS_LIB="$(cvxopt_output l blas)"
-export CVXOPT_BLAS_LIB_DIR="$(pkg-config --variable=libdir blas)"
-export CVXOPT_LAPACK_LIB="$(cvxopt_output l lapack)"
+# export CVXOPT_BLAS_LIB="$(cvxopt_output l blas)"
+# export CVXOPT_BLAS_LIB_DIR="$(pkg-config --variable=libdir blas)"
+# export CVXOPT_LAPACK_LIB="$(cvxopt_output l lapack)"
 
 if test "x$SAGE_SUITESPARSE_PREFIX" != "x"; then
    export CVXOPT_SUITESPARSE_LIB_DIR="${SAGE_SUITESPARSE_PREFIX}"
diff --git a/build/pkgs/fflas_ffpack/spkg-install.in b/build/pkgs/fflas_ffpack/spkg-install.in
index b9dd851875f..8fda3e0807c 100644
--- a/build/pkgs/fflas_ffpack/spkg-install.in
+++ b/build/pkgs/fflas_ffpack/spkg-install.in
@@ -1,3 +1,4 @@
+export LINBOX_BLAS='-framework Accelerate'
 cd src
 
 if [ "$LINBOX_BLAS" != "" ]; then
diff --git a/build/pkgs/linbox/spkg-install.in b/build/pkgs/linbox/spkg-install.in
index 7acc5547e9f..3c69075a480 100644
--- a/build/pkgs/linbox/spkg-install.in
+++ b/build/pkgs/linbox/spkg-install.in
@@ -1,3 +1,4 @@
+export LINBOX_BLAS='-framework Accelerate'
 cd src/
 
 ###############################################################################
diff --git a/build/pkgs/openblas/spkg-configure.m4 b/build/pkgs/openblas/spkg-configure.m4
index 94175da210b..db11acdb4b3 100644
--- a/build/pkgs/openblas/spkg-configure.m4
+++ b/build/pkgs/openblas/spkg-configure.m4
@@ -1,4 +1,6 @@
 SAGE_SPKG_CONFIGURE([openblas], [dnl CHECK
+ AC_CHECK_HEADER([Accelerate/Accelerate.h], [dnl macOS
+  ], [
   SAGE_SPKG_DEPCHECK([gfortran], [dnl
     SAVE_LIBS="$LIBS"
     SAVE_CFLAGS="$CFLAGS"
@@ -128,4 +130,5 @@ SAGE_SPKG_CONFIGURE([openblas], [dnl CHECK
     LIBS="$SAVE_LIBS"
     CFLAGS="$SAVE_CFLAGS"
   ])
+ ])
 ])
diff --git a/build/pkgs/scipy/spkg-install.in b/build/pkgs/scipy/spkg-install.in
index 37c4e972358..5c0a1c05dd4 100644
--- a/build/pkgs/scipy/spkg-install.in
+++ b/build/pkgs/scipy/spkg-install.in
@@ -3,8 +3,4 @@ export CXX=$(echo "$CXX" | sed 's/-std=[a-z0-9+]*//g')
 
 cd src/
 
-# mesonpy enforces the build-system requirements, including the strict version pins of numpy
-# even when --no-isolation (--no-build-isolation) is in used. We patch it out.
-sed -i.bak '/build-system/,/project/s/^ *"numpy.*/    "numpy",/' pyproject.toml
-
-sdh_pip_install --no-build-isolation .
+sdh_pip_install --no-build-isolation . -Csetup-args=-Dblas=accelerate
diff --git a/build/platform/macos/pkgconfig/blas.pc b/build/platform/macos/pkgconfig/blas.pc
new file mode 100644
index 00000000000..6d6ad688bfc
--- /dev/null
+++ b/build/platform/macos/pkgconfig/blas.pc
@@ -0,0 +1,6 @@
+Name: blas 
+Description: Apple blas
+Version: 42.0
+URL: https://apple.com
+Cflags:
+Libs: -framework Accelerate
diff --git a/build/platform/macos/pkgconfig/cblas.pc b/build/platform/macos/pkgconfig/cblas.pc
new file mode 100644
index 00000000000..6d6ad688bfc
--- /dev/null
+++ b/build/platform/macos/pkgconfig/cblas.pc
@@ -0,0 +1,6 @@
+Name: blas 
+Description: Apple blas
+Version: 42.0
+URL: https://apple.com
+Cflags:
+Libs: -framework Accelerate
diff --git a/build/platform/macos/pkgconfig/lapack.pc b/build/platform/macos/pkgconfig/lapack.pc
new file mode 100644
index 00000000000..6d6ad688bfc
--- /dev/null
+++ b/build/platform/macos/pkgconfig/lapack.pc
@@ -0,0 +1,6 @@
+Name: blas 
+Description: Apple blas
+Version: 42.0
+URL: https://apple.com
+Cflags:
+Libs: -framework Accelerate
diff --git a/build/platform/macos/pkgconfig/openblas.pc b/build/platform/macos/pkgconfig/openblas.pc
new file mode 100644
index 00000000000..6d6ad688bfc
--- /dev/null
+++ b/build/platform/macos/pkgconfig/openblas.pc
@@ -0,0 +1,6 @@
+Name: blas 
+Description: Apple blas
+Version: 42.0
+URL: https://apple.com
+Cflags:
+Libs: -framework Accelerate