Changed blas to openblas and fixed flow to a proper installation

scripts/build.sh

@@ -15,3 +15,4 @@ echo $ENABLE_CONTRIB > contrib.enabled
 echo $ENABLE_HEADLESS > headless.enabled
 set -x
 build_wheel $REPO_DIR $PLAT
+rm wheelhouse/numpy*

travis_config.sh

@@ -26,13 +26,6 @@ function bdist_wheel_cmd {
     if [ -n "$USE_CCACHE" -a -z "$BREW_BOOTSTRAP_MODE" ]; then ccache -s; fi
 }
 
-if [ -n "$IS_OSX" ]; then
-  brew install lapack
-else
-  yum install -y atlas-devel blas-devel lapack-devel
-  cp /usr/include/lapacke/lapacke*.h /usr/include/
-fi
-
 if [ -n "$IS_OSX" ]; then
   echo "    > OSX environment "
   export MAKEFLAGS="-j$(sysctl -n hw.ncpu)"
@@ -99,6 +92,14 @@ function pre_build {
   echo "Starting pre-build"
   set -e -o pipefail
 
+  if [ -n "$IS_OSX" ]; then
+    brew install lapack
+  else
+    yum install -y lapack-devel openblas-devel
+    cp /usr/include/lapacke/lapacke*.h /usr/include/
+    curl https://raw.githubusercontent.com/xianyi/OpenBLAS/v0.3.3/cblas.h -o /usr/include/cblas.h
+  fi
+
   if [ -n "$IS_OSX" ]; then
     echo "Running for OSX"