use gcc 12 for real

Author: byrnedj

contrib/prerequisites-centos9.sh

@@ -35,8 +35,10 @@ sudo dnf install -y \
   gtest-devel \
   libsodium-static \
   libdwarf-static \
+  gcc-toolset-12 \
   numactl-devel
 
+source /opt/rh/gcc-toolset-12/enable
 
 # Enable the "PowerTools" repository
 # CentOS Repository name for "PowerTools" is "crb" for Centos Stream 9
@@ -48,11 +50,8 @@ POWERTOOLS_REPO=crb
 sudo dnf --enablerepo="$POWERTOOLS_REPO" install -y \
   boost-static \
   snappy-devel \
-  devtoolset-12 \
   double-conversion-devel
 
-source /opt/rh/gcc-toolset-12/enable
-
 #Do not install these from OS packages - they are typically outdated.
 #gflags-devel \
 #glog \