Hi, As of commit 72c6fbd, I am getting the appended build error on OSX 10.6.8. I couldn't immediately see what might have caused the problem. Cheers, Matthew ... creating build/temp.macosx-10.3-fat-2.6/numpy/core/blasdot compile options: '-DNO_ATLAS_INFO=3 -Inumpy/core/blasdot -Inumpy/core/include -Ibuild/src.macosx-10.3-fat-2.6/numpy/core/include/numpy -Inumpy/core/src/private -Inumpy/core/src -Inumpy/core -Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath -Inumpy/core/src/npysort -Inumpy/core/include -I/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -Ibuild/src.macosx-10.3-fat-2.6/numpy/core/src/multiarray -Ibuild/src.macosx-10.3-fat-2.6/numpy/core/src/umath -c' extra options: '-msse3 -I/System/Library/Frameworks/vecLib.framework/Headers' gcc-4.0: numpy/core/blasdot/_dotblas.c In file included from numpy/core/include/numpy/ndarraytypes.h:1972, from numpy/core/include/numpy/ndarrayobject.h:17, from numpy/core/include/numpy/arrayobject.h:15, from numpy/core/blasdot/_dotblas.c:6: numpy/core/include/numpy/npy_deprecated_api.h:11:2: warning: #warning "Using deprecated NumPy API, disable it by #defining NPY_NO_DEPRECATED_API" In file included from numpy/core/include/numpy/ndarraytypes.h:1972, from numpy/core/include/numpy/ndarrayobject.h:17, from numpy/core/include/numpy/arrayobject.h:15, from numpy/core/blasdot/_dotblas.c:6: numpy/core/include/numpy/npy_deprecated_api.h:11:2: warning: #warning "Using deprecated NumPy API, disable it by #defining NPY_NO_DEPRECATED_API" numpy/core/blasdot/_dotblas.c: In function ‘dotblas_matrixproduct’: numpy/core/blasdot/_dotblas.c: In function ‘dotblas_matrixproduct’: numpy/core/blasdot/_dotblas.c:239: warning: comparison of distinct pointer types lacks a cast numpy/core/blasdot/_dotblas.c:257: warning: passing argument 3 of ‘*(PyArray_API + 1120u)’ from incompatible pointer type numpy/core/blasdot/_dotblas.c:292: warning: passing argument 3 of ‘*(PyArray_API + 1120u)’ from incompatible pointer type numpy/core/blasdot/_dotblas.c:239: warning: comparison of distinct pointer types lacks a cast numpy/core/blasdot/_dotblas.c:257: warning: passing argument 3 of ‘*(PyArray_API + 1120u)’ from incompatible pointer type numpy/core/blasdot/_dotblas.c:292: warning: passing argument 3 of ‘*(PyArray_API + 1120u)’ from incompatible pointer type gcc-4.0 -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g -bundle -undefined dynamic_lookup build/temp.macosx-10.3-fat-2.6/numpy/core/blasdot/_dotblas.o -Lbuild/temp.macosx-10.3-fat-2.6 -o build/lib.macosx-10.3-fat-2.6/numpy/core/_dotblas.so -Wl, -framework -Wl,Accelerate ld: file not found: collect2: ld returned 1 exit status ld: file not found: collect2: ld returned 1 exit status lipo: can't open input file: /var/folders/jg/jgfZ12ZXHwGSFKD85xLpLk+++TI/-Tmp-//ccZil7bP.out (No such file or directory) ld: file not found: collect2: ld returned 1 exit status ld: file not found: collect2: ld returned 1 exit status lipo: can't open input file: /var/folders/jg/jgfZ12ZXHwGSFKD85xLpLk+++TI/-Tmp-//ccZil7bP.out (No such file or directory) error: Command "gcc-4.0 -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g -bundle -undefined dynamic_lookup build/temp.macosx-10.3-fat-2.6/numpy/core/blasdot/_dotblas.o -Lbuild/temp.macosx-10.3-fat-2.6 -o build/lib.macosx-10.3-fat-2.6/numpy/core/_dotblas.so -Wl, -framework -Wl,Accelerate" failed with exit status 1