add -O2 flag to adios1 build

Author: pnorbert

adiospackages/runconf.adios1

@@ -25,7 +25,7 @@ if [ `hostname | cut -c 1-7` == "adiosVM" ]; then
     export CXX=g++
     export FC=gfortran
 
-    export CFLAGS="-g -O0 -fPIC -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast"
+    export CFLAGS="-g -O2 -fPIC -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast"
     ${SRCDIR}/configure --prefix=/opt/adios1 \
         --disable-maintainer-mode \
         --enable-dependency-tracking \