nightly build changes except 313

Author: sandeepgupta12

.ci/docker/manywheel/build_scripts/build.sh

@@ -39,10 +39,12 @@ yum -y install bzip2 make git patch unzip bison yasm diffutils \
     ${PYTHON_COMPILE_DEPS}
 
 # Install newest autoconf
-curl -sLO http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
-curl -sLO http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+cd build-aux || mkdir -p build-aux && cd build-aux
+curl -o config.guess -sL http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+curl -o config.sub -sL http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
 chmod +x config.guess config.sub
-mv config.guess config.sub build-aux/
+cd ..
+
 
 # Install newest autoconf
 build_autoconf $AUTOCONF_ROOT $AUTOCONF_HASH