fix up copy

Author: mattip

tools/build_openblas.sh

@@ -106,9 +106,8 @@ make BINARY=$build_bits DYNAMIC_ARCH=1 USE_THREAD=1 USE_OPENMP=0 \
      MAX_STACK_ALLOC=2048 \
      $interface_flags
 make PREFIX=$openblas_root/$build_bits $interface_flags install
-ls -l .
-cp -f "*.dll.a" "$openblas_root/$build_bits/lib/"
 DLL_BASENAME=libscipy_openblas${SYMBOLSUFFIX}${LIBNAMESUFFIX}
+cp -f "${DLL_BASENAME}.dll.a" "$openblas_root/$build_bits/lib/"
 
 # OpenBLAS does not build a symbol-suffixed static library on Windows:
 # do it ourselves. On 32-bit builds, the objcopy.def names need a '_' prefix