I used the following to build from source after backing up my config dir:
make makefiles \
CCARGS='-fPIC -DUSE_TLS -DUSE_SSL \
-DHAS_MYSQL -I/usr/include/mysql -DPREFIX=\"/usr\" \
-DSNAPSHOT -I/usr/include/openssl \
-I/usr/include' \
AUXLIBS='-L/usr/lib64 -L/usr/lib/openssl -lssl -lcrypto \
-lz -lm -L/usr/lib64/mysql -lmysqlclient -lz -lm \
-Wl,-rpath,/usr/lib/openssl -pie -Wl,-z,relro' \
OPT='-O' \
DEBUG='-g'
Then used checkinstall to build an RPM.
Copying files to the temporary directory...OK
Stripping ELF binaries...OK
Compressing man pages...OK
Building file list...OK
Building RPM package...OK
NOTE: The package will not be installed
Erasing temporary files...OK
Deleting temp dir...OK
Done. The new package has been saved to
/usr/src/redhat/RPMS/x86_64/postfix-2.8.0-1.x86_64.rpm
You can install it in your system anytime using:
rpm -Uhv postfix-2.8.0-1.x86_64.rpm
